Sono disponibili altri esempi AWS SDK nel repository [AWS Doc SDK](https://github.com/awsdocs/aws-doc-sdk-examples) Examples. GitHub Le traduzioni sono generate tramite traduzione automatica. In caso di conflitto tra il contenuto di una traduzione e la versione originale in Inglese, quest'ultima prevarrà. # Esempi di codice per SDK per Ruby I seguenti esempi di codice mostrano come utilizzare AWS SDK per Ruby with AWS. *Nozioni di base*: esempi di codice che mostrano come eseguire le operazioni essenziali all’interno di un servizio. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Alcuni servizi contengono ulteriori categorie di esempio che mostrano come utilizzare le librerie o le funzioni specifiche del servizio. **Altre risorse** + Guida per sviluppatori **[SDK for Ruby](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/welcome.html)**: ulteriori informazioni sull'utilizzo di Ruby con. AWS + **[Centro per sviluppatori AWS](https://aws.amazon.com/developer/code-examples/?awsf.sdk-code-examples-programming-language=programming-language%23ruby)**: esempi di codice che è possibile filtrare per categoria o per ricerca di testo completo. + **[AWS Esempi SDK](https://github.com/awsdocs/aws-doc-sdk-examples)**: GitHub repository con codice completo nelle lingue preferite. Include le istruzioni su come configurare ed eseguire il codice. **Topics** + [Aurora](ruby_3_aurora_code_examples.md) + [Auto Scaling](ruby_3_auto-scaling_code_examples.md) + [CloudTrail](ruby_3_cloudtrail_code_examples.md) + [CloudWatch](ruby_3_cloudwatch_code_examples.md) + [Gestore dell’identità per Amazon Cognito](ruby_3_cognito-identity-provider_code_examples.md) + [Amazon Comprehend](ruby_3_comprehend_code_examples.md) + [Amazon DocumentDB](ruby_3_docdb_code_examples.md) + [DynamoDB](ruby_3_dynamodb_code_examples.md) + [Amazon EC2](ruby_3_ec2_code_examples.md) + [Elastic Beanstalk](ruby_3_elastic-beanstalk_code_examples.md) + [EventBridge](ruby_3_eventbridge_code_examples.md) + [AWS Glue](ruby_3_glue_code_examples.md) + [IAM](ruby_3_iam_code_examples.md) + [Kinesis](ruby_3_kinesis_code_examples.md) + [AWS KMS](ruby_3_kms_code_examples.md) + [Lambda](ruby_3_lambda_code_examples.md) + [MSK Amazon](ruby_3_kafka_code_examples.md) + [Amazon Polly](ruby_3_polly_code_examples.md) + [Amazon RDS](ruby_3_rds_code_examples.md) + [Simple Storage Service (Amazon S3)](ruby_3_s3_code_examples.md) + [Amazon SES](ruby_3_ses_code_examples.md) + [API Amazon SES v2](ruby_3_sesv2_code_examples.md) + [Amazon SNS](ruby_3_sns_code_examples.md) + [Amazon SQS](ruby_3_sqs_code_examples.md) + [AWS STS](ruby_3_sts_code_examples.md) + [Amazon Textract](ruby_3_textract_code_examples.md) + [Amazon Translate](ruby_3_translate_code_examples.md) # Esempi per Aurora con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Aurora. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) ## Nozioni di base ### Hello Aurora L'esempio di codice seguente mostra come iniziare a utilizzare Aurora. **SDK per Ruby** C'è di più su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/aurora#code-examples). ``` require 'aws-sdk-rds' # Creates an Amazon RDS client for the AWS Region rds = Aws::RDS::Client.new puts 'Listing clusters in this AWS account...' # Calls the describe_db_clusters method to get information about clusters resp = rds.describe_db_clusters(max_records: 20) # Checks if any clusters are found and prints the appropriate message if resp.db_clusters.empty? puts 'No clusters found!' else # Loops through the array of cluster objects and prints the cluster identifier resp.db_clusters.each do |cluster| puts "Cluster identifier: #{cluster.db_cluster_identifier}" end end ``` + Per i dettagli sull'API, consulta [Descrivi DBClusters](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeDBClusters) in *AWS SDK per Ruby API Reference*. # Esempi per Auto Scaling con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Auto Scaling. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) ## Nozioni di base ### Hello Auto Scaling Il seguente esempio di codice mostra come iniziare a usare Auto Scaling. **SDK per Ruby** C'è altro su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/auto-scaling#code-examples). ``` require 'aws-sdk-autoscaling' require 'logger' # AutoScalingManager is a class responsible for managing AWS Auto Scaling operations # such as listing all Auto Scaling groups in the current AWS account. class AutoScalingManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Gets and prints a list of Auto Scaling groups for the account. def list_auto_scaling_groups paginator = @client.describe_auto_scaling_groups auto_scaling_groups = [] paginator.each_page do |page| auto_scaling_groups.concat(page.auto_scaling_groups) end if auto_scaling_groups.empty? @logger.info('No Auto Scaling groups found for this account.') else auto_scaling_groups.each do |group| @logger.info("Auto Scaling group name: #{group.auto_scaling_group_name}") @logger.info(" Group ARN: #{group.auto_scaling_group_arn}") @logger.info(" Min/max/desired: #{group.min_size}/#{group.max_size}/#{group.desired_capacity}") @logger.info("\n") end end end end if $PROGRAM_NAME == __FILE__ autoscaling_client = Aws::AutoScaling::Client.new manager = AutoScalingManager.new(autoscaling_client) manager.list_auto_scaling_groups end ``` + Per i dettagli sull'API, [DescribeAutoScalingGroups](https://docs.aws.amazon.com/goto/SdkForRubyV3/autoscaling-2011-01-01/DescribeAutoScalingGroups)consulta *AWS SDK per Ruby API Reference*. # CloudTrail esempi che utilizzano SDK for Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with CloudTrail. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) ## Azioni ### `CreateTrail` Il seguente esempio di codice mostra come utilizzare`CreateTrail`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudtrail#code-examples). ``` require 'aws-sdk-cloudtrail' # v2: require 'aws-sdk' require 'aws-sdk-s3' require 'aws-sdk-sts' def create_trail_example(s3_client, sts_client, cloudtrail_client, trail_name, bucket_name) resp = sts_client.get_caller_identity({}) account_id = resp.account # Attach policy to an Amazon Simple Storage Service (S3) bucket. s3_client.create_bucket(bucket: bucket_name) begin policy = { 'Version' => '2012-10-17', 'Statement' => [ { 'Sid' => 'AWSCloudTrailAclCheck20150319', 'Effect' => 'Allow', 'Principal' => { 'Service' => 'cloudtrail.amazonaws.com' }, 'Action' => 's3:GetBucketAcl', 'Resource' => "arn:aws:s3:::#{bucket_name}" }, { 'Sid' => 'AWSCloudTrailWrite20150319', 'Effect' => 'Allow', 'Principal' => { 'Service' => 'cloudtrail.amazonaws.com' }, 'Action' => 's3:PutObject', 'Resource' => "arn:aws:s3:::#{bucket_name}/AWSLogs/#{account_id}/*", 'Condition' => { 'StringEquals' => { 's3:x-amz-acl' => 'bucket-owner-full-control' } } } ] }.to_json s3_client.put_bucket_policy( bucket: bucket_name, policy: policy ) puts "Successfully added policy to bucket #{bucket_name}" end begin cloudtrail_client.create_trail({ name: trail_name, # required s3_bucket_name: bucket_name # required }) puts "Successfully created trail: #{trail_name}." rescue StandardError => e puts "Got error trying to create trail #{trail_name}:\n #{e}" puts e exit 1 end ``` + Per i dettagli sull'API, [CreateTrail](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudtrail-2013-11-01/CreateTrail)consulta *AWS SDK per Ruby API Reference*. ### `DeleteTrail` Il seguente esempio di codice mostra come utilizzare`DeleteTrail`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudtrail#code-examples). ``` client.delete_trail({ name: trail_name # required }) puts "Successfully deleted trail: #{trail_name}" rescue StandardError => e puts "Got error trying to delete trail: #{trail_name}:" puts e exit 1 end ``` + Per i dettagli sull'API, [DeleteTrail](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudtrail-2013-11-01/DeleteTrail)consulta *AWS SDK per Ruby API Reference*. ### `ListTrails` Il seguente esempio di codice mostra come utilizzare`ListTrails`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudtrail#code-examples). ``` require 'aws-sdk-cloudtrail' # v2: require 'aws-sdk' def describe_trails_example(client) resp = client.describe_trails({}) puts "Found #{resp.trail_list.count} trail(s)." resp.trail_list.each do |trail| puts "Name: #{trail.name}" puts "S3 bucket name: #{trail.s3_bucket_name}" puts end ``` + Per i dettagli sull'API, [ListTrails](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudtrail-2013-11-01/ListTrails)consulta *AWS SDK per Ruby API Reference*. ### `LookupEvents` Il seguente esempio di codice mostra come utilizzare`LookupEvents`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudtrail#code-examples). ``` require 'aws-sdk-cloudtrail' # v2: require 'aws-sdk' # @param [Object] client def lookup_events_example(client) resp = client.lookup_events puts "Found #{resp.events.count} events:" resp.events.each do |e| puts "Event name: #{e.event_name}" puts "Event ID: #{e.event_id}" puts "Event time: #{e.event_time}" puts 'Resources:' e.resources.each do |r| puts " Name: #{r.resource_name}" puts " Type: #{r.resource_type}" puts '' end end end ``` + Per i dettagli sull'API, [LookupEvents](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudtrail-2013-11-01/LookupEvents)consulta *AWS SDK per Ruby API Reference*. # CloudWatch esempi che utilizzano SDK for Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with CloudWatch. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) ## Azioni ### `DescribeAlarms` Il seguente esempio di codice mostra come utilizzare`DescribeAlarms`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). ``` require 'aws-sdk-cloudwatch' # Lists the names of available Amazon CloudWatch alarms. # # @param cloudwatch_client [Aws::CloudWatch::Client] # An initialized CloudWatch client. # @example # list_alarms(Aws::CloudWatch::Client.new(region: 'us-east-1')) def list_alarms(cloudwatch_client) response = cloudwatch_client.describe_alarms if response.metric_alarms.count.positive? response.metric_alarms.each do |alarm| puts alarm.alarm_name end else puts 'No alarms found.' end rescue StandardError => e puts "Error getting information about alarms: #{e.message}" end ``` + Per i dettagli sull'API, [DescribeAlarms](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/DescribeAlarms)consulta *AWS SDK per Ruby API Reference*. ### `DescribeAlarmsForMetric` Il seguente esempio di codice mostra come utilizzare`DescribeAlarmsForMetric`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). ``` # # @param cloudwatch_client [Aws::CloudWatch::Client] # An initialized CloudWatch client. # @example # describe_metric_alarms(Aws::CloudWatch::Client.new(region: 'us-east-1')) def describe_metric_alarms(cloudwatch_client) response = cloudwatch_client.describe_alarms if response.metric_alarms.count.positive? response.metric_alarms.each do |alarm| puts '-' * 16 puts "Name: #{alarm.alarm_name}" puts "State value: #{alarm.state_value}" puts "State reason: #{alarm.state_reason}" puts "Metric: #{alarm.metric_name}" puts "Namespace: #{alarm.namespace}" puts "Statistic: #{alarm.statistic}" puts "Period: #{alarm.period}" puts "Unit: #{alarm.unit}" puts "Eval. periods: #{alarm.evaluation_periods}" puts "Threshold: #{alarm.threshold}" puts "Comp. operator: #{alarm.comparison_operator}" if alarm.key?(:ok_actions) && alarm.ok_actions.count.positive? puts 'OK actions:' alarm.ok_actions.each do |a| puts " #{a}" end end if alarm.key?(:alarm_actions) && alarm.alarm_actions.count.positive? puts 'Alarm actions:' alarm.alarm_actions.each do |a| puts " #{a}" end end if alarm.key?(:insufficient_data_actions) && alarm.insufficient_data_actions.count.positive? puts 'Insufficient data actions:' alarm.insufficient_data_actions.each do |a| puts " #{a}" end end puts 'Dimensions:' if alarm.key?(:dimensions) && alarm.dimensions.count.positive? alarm.dimensions.each do |d| puts " Name: #{d.name}, Value: #{d.value}" end else puts ' None for this alarm.' end end else puts 'No alarms found.' end rescue StandardError => e puts "Error getting information about alarms: #{e.message}" end # Example usage: def run_me region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby cw-ruby-example-show-alarms.rb REGION' puts 'Example: ruby cw-ruby-example-show-alarms.rb us-east-1' exit 1 # If no values are specified at the command prompt, use these default values. elsif ARGV.count.zero? region = 'us-east-1' # Otherwise, use the values as specified at the command prompt. else region = ARGV[0] end cloudwatch_client = Aws::CloudWatch::Client.new(region: region) puts 'Available alarms:' describe_metric_alarms(cloudwatch_client) end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/DescribeAlarmsForMetric)consulta *AWS SDK per Ruby API Reference*. ### `DisableAlarmActions` Il seguente esempio di codice mostra come utilizzare`DisableAlarmActions`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). ``` # Disables an alarm in Amazon CloudWatch. # # Prerequisites. # # - The alarm to disable. # # @param cloudwatch_client [Aws::CloudWatch::Client] # An initialized CloudWatch client. # @param alarm_name [String] The name of the alarm to disable. # @return [Boolean] true if the alarm was disabled; otherwise, false. # @example # exit 1 unless alarm_actions_disabled?( # Aws::CloudWatch::Client.new(region: 'us-east-1'), # 'ObjectsInBucket' # ) def alarm_actions_disabled?(cloudwatch_client, alarm_name) cloudwatch_client.disable_alarm_actions(alarm_names: [alarm_name]) true rescue StandardError => e puts "Error disabling alarm actions: #{e.message}" false end # Example usage: def run_me alarm_name = 'ObjectsInBucket' alarm_description = 'Objects exist in this bucket for more than 1 day.' metric_name = 'NumberOfObjects' # Notify this Amazon Simple Notification Service (Amazon SNS) topic when # the alarm transitions to the ALARM state. alarm_actions = ['arn:aws:sns:us-east-1:111111111111:Default_CloudWatch_Alarms_Topic'] namespace = 'AWS/S3' statistic = 'Average' dimensions = [ { name: "BucketName", value: "amzn-s3-demo-bucket" }, { name: 'StorageType', value: 'AllStorageTypes' } ] period = 86_400 # Daily (24 hours * 60 minutes * 60 seconds = 86400 seconds). unit = 'Count' evaluation_periods = 1 # More than one day. threshold = 1 # One object. comparison_operator = 'GreaterThanThreshold' # More than one object. # Replace us-west-2 with the AWS Region you're using for Amazon CloudWatch. region = 'us-east-1' cloudwatch_client = Aws::CloudWatch::Client.new(region: region) if alarm_created_or_updated?( cloudwatch_client, alarm_name, alarm_description, metric_name, alarm_actions, namespace, statistic, dimensions, period, unit, evaluation_periods, threshold, comparison_operator ) puts "Alarm '#{alarm_name}' created or updated." else puts "Could not create or update alarm '#{alarm_name}'." end if alarm_actions_disabled?(cloudwatch_client, alarm_name) puts "Alarm '#{alarm_name}' disabled." else puts "Could not disable alarm '#{alarm_name}'." end end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [DisableAlarmActions](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/DisableAlarmActions)consulta *AWS SDK per Ruby API Reference*. ### `ListMetrics` Il seguente esempio di codice mostra come utilizzare`ListMetrics`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). ``` # Lists available metrics for a metric namespace in Amazon CloudWatch. # # @param cloudwatch_client [Aws::CloudWatch::Client] # An initialized CloudWatch client. # @param metric_namespace [String] The namespace of the metric. # @example # list_metrics_for_namespace( # Aws::CloudWatch::Client.new(region: 'us-east-1'), # 'SITE/TRAFFIC' # ) def list_metrics_for_namespace(cloudwatch_client, metric_namespace) response = cloudwatch_client.list_metrics(namespace: metric_namespace) if response.metrics.count.positive? response.metrics.each do |metric| puts " Metric name: #{metric.metric_name}" if metric.dimensions.count.positive? puts ' Dimensions:' metric.dimensions.each do |dimension| puts " Name: #{dimension.name}, Value: #{dimension.value}" end else puts 'No dimensions found.' end end else puts "No metrics found for namespace '#{metric_namespace}'. " \ 'Note that it could take up to 15 minutes for recently-added metrics ' \ 'to become available.' end end # Example usage: def run_me metric_namespace = 'SITE/TRAFFIC' # Replace us-west-2 with the AWS Region you're using for Amazon CloudWatch. region = 'us-east-1' cloudwatch_client = Aws::CloudWatch::Client.new(region: region) # Add three datapoints. puts 'Continuing...' unless datapoint_added_to_metric?( cloudwatch_client, metric_namespace, 'UniqueVisitors', 'SiteName', 'example.com', 5_885.0, 'Count' ) puts 'Continuing...' unless datapoint_added_to_metric?( cloudwatch_client, metric_namespace, 'UniqueVisits', 'SiteName', 'example.com', 8_628.0, 'Count' ) puts 'Continuing...' unless datapoint_added_to_metric?( cloudwatch_client, metric_namespace, 'PageViews', 'PageURL', 'example.html', 18_057.0, 'Count' ) puts "Metrics for namespace '#{metric_namespace}':" list_metrics_for_namespace(cloudwatch_client, metric_namespace) end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [ListMetrics](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/ListMetrics)consulta *AWS SDK per Ruby API Reference*. ### `PutMetricAlarm` Il seguente esempio di codice mostra come utilizzare`PutMetricAlarm`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). ``` # Creates or updates an alarm in Amazon CloudWatch. # # @param cloudwatch_client [Aws::CloudWatch::Client] # An initialized CloudWatch client. # @param alarm_name [String] The name of the alarm. # @param alarm_description [String] A description about the alarm. # @param metric_name [String] The name of the metric associated with the alarm. # @param alarm_actions [Array] A list of Strings representing the # Amazon Resource Names (ARNs) to execute when the alarm transitions to the # ALARM state. # @param namespace [String] The namespace for the metric to alarm on. # @param statistic [String] The statistic for the metric. # @param dimensions [Array] A list of dimensions for the metric, specified as # Aws::CloudWatch::Types::Dimension. # @param period [Integer] The number of seconds before re-evaluating the metric. # @param unit [String] The unit of measure for the statistic. # @param evaluation_periods [Integer] The number of periods over which data is # compared to the specified threshold. # @param theshold [Float] The value against which the specified statistic is compared. # @param comparison_operator [String] The arithmetic operation to use when # comparing the specified statistic and threshold. # @return [Boolean] true if the alarm was created or updated; otherwise, false. # @example # exit 1 unless alarm_created_or_updated?( # Aws::CloudWatch::Client.new(region: 'us-east-1'), # 'ObjectsInBucket', # 'Objects exist in this bucket for more than 1 day.', # 'NumberOfObjects', # ['arn:aws:sns:us-east-1:111111111111:Default_CloudWatch_Alarms_Topic'], # 'AWS/S3', # 'Average', # [ # { # name: 'BucketName', # value: 'amzn-s3-demo-bucket' # }, # { # name: 'StorageType', # value: 'AllStorageTypes' # } # ], # 86_400, # 'Count', # 1, # 1, # 'GreaterThanThreshold' # ) def alarm_created_or_updated?( cloudwatch_client, alarm_name, alarm_description, metric_name, alarm_actions, namespace, statistic, dimensions, period, unit, evaluation_periods, threshold, comparison_operator ) cloudwatch_client.put_metric_alarm( alarm_name: alarm_name, alarm_description: alarm_description, metric_name: metric_name, alarm_actions: alarm_actions, namespace: namespace, statistic: statistic, dimensions: dimensions, period: period, unit: unit, evaluation_periods: evaluation_periods, threshold: threshold, comparison_operator: comparison_operator ) true rescue StandardError => e puts "Error creating alarm: #{e.message}" false end ``` + Per i dettagli sull'API, [PutMetricAlarm](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/PutMetricAlarm)consulta *AWS SDK per Ruby API Reference*. ### `PutMetricData` Il seguente esempio di codice mostra come utilizzare`PutMetricData`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). ``` require 'aws-sdk-cloudwatch' # Adds a datapoint to a metric in Amazon CloudWatch. # # @param cloudwatch_client [Aws::CloudWatch::Client] # An initialized CloudWatch client. # @param metric_namespace [String] The namespace of the metric to add the # datapoint to. # @param metric_name [String] The name of the metric to add the datapoint to. # @param dimension_name [String] The name of the dimension to add the # datapoint to. # @param dimension_value [String] The value of the dimension to add the # datapoint to. # @param metric_value [Float] The value of the datapoint. # @param metric_unit [String] The unit of measurement for the datapoint. # @return [Boolean] # @example # exit 1 unless datapoint_added_to_metric?( # Aws::CloudWatch::Client.new(region: 'us-east-1'), # 'SITE/TRAFFIC', # 'UniqueVisitors', # 'SiteName', # 'example.com', # 5_885.0, # 'Count' # ) def datapoint_added_to_metric?( cloudwatch_client, metric_namespace, metric_name, dimension_name, dimension_value, metric_value, metric_unit ) cloudwatch_client.put_metric_data( namespace: metric_namespace, metric_data: [ { metric_name: metric_name, dimensions: [ { name: dimension_name, value: dimension_value } ], value: metric_value, unit: metric_unit } ] ) puts "Added data about '#{metric_name}' to namespace " \ "'#{metric_namespace}'." true rescue StandardError => e puts "Error adding data about '#{metric_name}' to namespace " \ "'#{metric_namespace}': #{e.message}" false end ``` + Per i dettagli sull'API, [PutMetricData](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/PutMetricData)consulta *AWS SDK per Ruby API Reference*. # Esempi per il gestore dell’identità per Amazon Cognito con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon Cognito Identity Provider. AWS SDK per Ruby Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) ## Nozioni di base ### Ciao Amazon Cognito L'esempio di codice seguente mostra come iniziare a utilizzare Amazon Cognito. **SDK per Ruby** C'è di più su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cognito#code-examples). ``` require 'aws-sdk-cognitoidentityprovider' require 'logger' # CognitoManager is a class responsible for managing AWS Cognito operations # such as listing all user pools in the current AWS account. class CognitoManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Lists and prints all user pools associated with the AWS account. def list_user_pools paginator = @client.list_user_pools(max_results: 10) user_pools = [] paginator.each_page do |page| user_pools.concat(page.user_pools) end if user_pools.empty? @logger.info('No Cognito user pools found.') else user_pools.each do |user_pool| @logger.info("User pool ID: #{user_pool.id}") @logger.info("User pool name: #{user_pool.name}") @logger.info("User pool status: #{user_pool.status}") @logger.info('---') end end end end if $PROGRAM_NAME == __FILE__ cognito_client = Aws::CognitoIdentityProvider::Client.new manager = CognitoManager.new(cognito_client) manager.list_user_pools end ``` + Per i dettagli sull'API, [ListUserPools](https://docs.aws.amazon.com/goto/SdkForRubyV3/cognito-idp-2016-04-18/ListUserPools)consulta *AWS SDK per Ruby API Reference*. # Esempi per Amazon Comprehend con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon Comprehend. AWS SDK per Ruby *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, dove è possibile trovare le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Scenari](#scenarios) ## Scenari ### Crea un’applicazione per analizzare il feedback dei clienti L’esempio di codice seguente mostra come creare un’applicazione che analizza le schede dei commenti dei clienti, le traduce dalla loro lingua originale, ne determina il sentiment e genera un file audio dal testo tradotto. **SDK per Ruby** Questa applicazione di esempio analizza e archivia le schede di feedback dei clienti. In particolare, soddisfa l’esigenza di un hotel fittizio a New York City. L’hotel riceve feedback dagli ospiti in varie lingue sotto forma di schede di commento fisiche. Tale feedback viene caricato nell’app tramite un client Web. Dopo aver caricato l’immagine di una scheda di commento, vengono eseguiti i seguenti passaggi: + Il testo viene estratto dall’immagine utilizzando Amazon Textract. + Amazon Comprehend determina il sentiment del testo estratto e la sua lingua. + Il testo estratto viene tradotto in inglese utilizzando Amazon Translate. + Amazon Polly sintetizza un file audio dal testo estratto. L’app completa può essere implementata con  AWS CDK. Per il codice sorgente e le istruzioni di distribuzione, consulta il progetto in [ GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/cross_service_examples/feedback_sentiment_analyzer). **Servizi utilizzati in questo esempio** + Amazon Comprehend + Lambda + Amazon Polly + Amazon Textract + Amazon Translate # Esempi per Amazon DocumentDB con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon DocumentDB. AWS SDK per Ruby Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Esempi serverless](#serverless_examples) ## Esempi serverless ### Invocare una funzione Lambda da un trigger Amazon DocumentDB L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un flusso di modifiche di DocumentDB. La funzione recupera il payload DocumentDB e registra il contenuto del record. **SDK per Ruby** C'è di più su. GitHub Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-docdb-to-lambda). Utilizzo di un evento Amazon DocumentDB con Lambda tramite Ruby. ``` require 'json' def lambda_handler(event:, context:) event['events'].each do |record| log_document_db_event(record) end 'OK' end def log_document_db_event(record) event_data = record['event'] || {} operation_type = event_data['operationType'] || 'Unknown' db = event_data.dig('ns', 'db') || 'Unknown' collection = event_data.dig('ns', 'coll') || 'Unknown' full_document = event_data['fullDocument'] || {} puts "Operation type: #{operation_type}" puts "db: #{db}" puts "collection: #{collection}" puts "Full document: #{JSON.pretty_generate(full_document)}" end ``` # Esempi per DynamoDB con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con DynamoDB. *Nozioni di base*: esempi di codice che mostrano come eseguire le operazioni essenziali all’interno di un servizio. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) + [Nozioni di base](#basics) + [Azioni](#actions) + [Scenari](#scenarios) + [Esempi serverless](#serverless_examples) ## Nozioni di base ### Hello DynamoDB L'esempio di codice seguente mostra come iniziare a utilizzare DynamoDB. **SDK per Ruby** C'è di più su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` require 'aws-sdk-dynamodb' require 'logger' # DynamoDBManager is a class responsible for managing DynamoDB operations # such as listing all tables in the current AWS account. class DynamoDBManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Lists and prints all DynamoDB tables in the current AWS account. def list_tables @logger.info('Here are the DynamoDB tables in your account:') paginator = @client.list_tables(limit: 10) table_names = [] paginator.each_page do |page| page.table_names.each do |table_name| @logger.info("- #{table_name}") table_names << table_name end end if table_names.empty? @logger.info("You don't have any DynamoDB tables in your account.") else @logger.info("\nFound #{table_names.length} tables.") end end end if $PROGRAM_NAME == __FILE__ dynamodb_client = Aws::DynamoDB::Client.new manager = DynamoDBManager.new(dynamodb_client) manager.list_tables end ``` + Per i dettagli sull'API, [ListTables](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/ListTables)consulta *AWS SDK per Ruby API Reference*. ## Nozioni di base ### Informazioni di base L’esempio di codice seguente mostra come: + Crea una tabella in grado di contenere i dati del filmato. + Inserire, ottenere e aggiornare un singolo filmato nella tabella. + Scrivere i dati del filmato nella tabella da un file JSON di esempio. + Eseguire una query sui filmati che sono stati rilasciati in un dato anno. + Cerca i filmati che sono stati distribuiti in diversi anni. + Elimina un filmato dalla tabella, quindi elimina la tabella. **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). Crea una classe che incapsula una tabella DynamoDB. ``` # Creates an Amazon DynamoDB table that can be used to store movie data. # The table uses the release year of the movie as the partition key and the # title as the sort key. # # @param table_name [String] The name of the table to create. # @return [Aws::DynamoDB::Table] The newly created table. def create_table(table_name) @table = @dynamo_resource.create_table( table_name: table_name, key_schema: [ { attribute_name: 'year', key_type: 'HASH' }, # Partition key { attribute_name: 'title', key_type: 'RANGE' } # Sort key ], attribute_definitions: [ { attribute_name: 'year', attribute_type: 'N' }, { attribute_name: 'title', attribute_type: 'S' } ], billing_mode: 'PAY_PER_REQUEST' ) @dynamo_resource.client.wait_until(:table_exists, table_name: table_name) @table rescue Aws::DynamoDB::Errors::ServiceError => e @logger.error("Failed create table #{table_name}:\n#{e.code}: #{e.message}") raise end ``` Crea una funzione helper per scaricare ed estrarre il file JSON di esempio. ``` # Gets sample movie data, either from a local file or by first downloading it from # the Amazon DynamoDB Developer Guide. # # @param movie_file_name [String] The local file name where the movie data is stored in JSON format. # @return [Hash] The movie data as a Hash. def fetch_movie_data(movie_file_name) if !File.file?(movie_file_name) @logger.debug("Downloading #{movie_file_name}...") movie_content = URI.open( 'https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/samples/moviedata.zip' ) movie_json = '' Zip::File.open_buffer(movie_content) do |zip| zip.each do |entry| movie_json = entry.get_input_stream.read end end else movie_json = File.read(movie_file_name) end movie_data = JSON.parse(movie_json) # The sample file lists over 4000 movies. This returns only the first 250. movie_data.slice(0, 250) rescue StandardError => e puts("Failure downloading movie data:\n#{e}") raise end ``` Esegui uno scenario interattivo per creare la tabella ed eseguire azioni su di essa. ``` table_name = "doc-example-table-movies-#{rand(10**4)}" scaffold = Scaffold.new(table_name) dynamodb_wrapper = DynamoDBBasics.new(table_name) new_step(1, 'Create a new DynamoDB table if none already exists.') unless scaffold.exists?(table_name) puts("\nNo such table: #{table_name}. Creating it...") scaffold.create_table(table_name) print "Done!\n".green end new_step(2, 'Add a new record to the DynamoDB table.') my_movie = {} my_movie[:title] = CLI::UI::Prompt.ask('Enter the title of a movie to add to the table. E.g. The Matrix') my_movie[:year] = CLI::UI::Prompt.ask('What year was it released? E.g. 1989').to_i my_movie[:rating] = CLI::UI::Prompt.ask('On a scale of 1 - 10, how do you rate it? E.g. 7').to_i my_movie[:plot] = CLI::UI::Prompt.ask('Enter a brief summary of the plot. E.g. A man awakens to a new reality.') dynamodb_wrapper.add_item(my_movie) puts("\nNew record added:") puts JSON.pretty_generate(my_movie).green print "Done!\n".green new_step(3, 'Update a record in the DynamoDB table.') my_movie[:rating] = CLI::UI::Prompt.ask("Let's update the movie you added with a new rating, e.g. 3:").to_i response = dynamodb_wrapper.update_item(my_movie) puts("Updated '#{my_movie[:title]}' with new attributes:") puts JSON.pretty_generate(response).green print "Done!\n".green new_step(4, 'Get a record from the DynamoDB table.') puts("Searching for #{my_movie[:title]} (#{my_movie[:year]})...") response = dynamodb_wrapper.get_item(my_movie[:title], my_movie[:year]) puts JSON.pretty_generate(response).green print "Done!\n".green new_step(5, 'Write a batch of items into the DynamoDB table.') download_file = 'moviedata.json' puts("Downloading movie database to #{download_file}...") movie_data = scaffold.fetch_movie_data(download_file) puts("Writing movie data from #{download_file} into your table...") scaffold.write_batch(movie_data) puts("Records added: #{movie_data.length}.") print "Done!\n".green new_step(5, 'Query for a batch of items by key.') loop do release_year = CLI::UI::Prompt.ask('Enter a year between 1972 and 2018, e.g. 1999:').to_i results = dynamodb_wrapper.query_items(release_year) if results.any? puts("There were #{results.length} movies released in #{release_year}:") results.each do |movie| print "\t #{movie['title']}".green end break else continue = CLI::UI::Prompt.ask("Found no movies released in #{release_year}! Try another year? (y/n)") break unless continue.eql?('y') end end print "\nDone!\n".green new_step(6, 'Scan for a batch of items using a filter expression.') years = {} years[:start] = CLI::UI::Prompt.ask('Enter a starting year between 1972 and 2018:') years[:end] = CLI::UI::Prompt.ask('Enter an ending year between 1972 and 2018:') releases = dynamodb_wrapper.scan_items(years) if !releases.empty? puts("Found #{releases.length} movies.") count = Question.ask( 'How many do you want to see? ', method(:is_int), in_range(1, releases.length) ) puts("Here are your #{count} movies:") releases.take(count).each do |release| puts("\t#{release['title']}") end else puts("I don't know about any movies released between #{years[:start]} "\ "and #{years[:end]}.") end print "\nDone!\n".green new_step(7, 'Delete an item from the DynamoDB table.') answer = CLI::UI::Prompt.ask("Do you want to remove '#{my_movie[:title]}'? (y/n) ") if answer.eql?('y') dynamodb_wrapper.delete_item(my_movie[:title], my_movie[:year]) puts("Removed '#{my_movie[:title]}' from the table.") print "\nDone!\n".green end new_step(8, 'Delete the DynamoDB table.') answer = CLI::UI::Prompt.ask('Delete the table? (y/n)') if answer.eql?('y') scaffold.delete_table puts("Deleted #{table_name}.") else puts("Don't forget to delete the table when you're done!") end print "\nThanks for watching!\n".green rescue Aws::Errors::ServiceError puts('Something went wrong with the demo.') rescue Errno::ENOENT true end ``` + Per informazioni dettagliate sull’API, consulta i seguenti argomenti nella *documentazione di riferimento dell’API AWS SDK per Ruby *. + [BatchWriteItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/BatchWriteItem) + [CreateTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/CreateTable) + [DeleteItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/DeleteItem) + [DeleteTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/DeleteTable) + [DescribeTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/DescribeTable) + [GetItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/GetItem) + [PutItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/PutItem) + [Query](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/Query) + [Scan](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/Scan) + [UpdateItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/UpdateItem) ## Azioni ### `BatchExecuteStatement` Il seguente esempio di codice mostra come usare`BatchExecuteStatement`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). Lettura di un batch di elementi mediante PartiQL. ``` class DynamoDBPartiQLBatch attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamodb = Aws::DynamoDB::Resource.new(client: client) @table = @dynamodb.table(table_name) end # Selects a batch of items from a table using PartiQL # # @param batch_titles [Array] Collection of movie titles # @return [Aws::DynamoDB::Types::BatchExecuteStatementOutput] def batch_execute_select(batch_titles) request_items = batch_titles.map do |title, year| { statement: "SELECT * FROM \"#{@table.name}\" WHERE title=? and year=?", parameters: [title, year] } end @dynamodb.client.batch_execute_statement({ statements: request_items }) end ``` Eliminazione di un batch di elementi mediante PartiQL. ``` class DynamoDBPartiQLBatch attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamodb = Aws::DynamoDB::Resource.new(client: client) @table = @dynamodb.table(table_name) end # Deletes a batch of items from a table using PartiQL # # @param batch_titles [Array] Collection of movie titles # @return [Aws::DynamoDB::Types::BatchExecuteStatementOutput] def batch_execute_write(batch_titles) request_items = batch_titles.map do |title, year| { statement: "DELETE FROM \"#{@table.name}\" WHERE title=? and year=?", parameters: [title, year] } end @dynamodb.client.batch_execute_statement({ statements: request_items }) end ``` + Per i dettagli sull'API, [BatchExecuteStatement](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/BatchExecuteStatement)consulta *AWS SDK per Ruby API Reference*. ### `BatchWriteItem` Il seguente esempio di codice mostra come utilizzare`BatchWriteItem`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` class DynamoDBBasics attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table = @dynamo_resource.table(table_name) end # Fills an Amazon DynamoDB table with the specified data. Items are sent in # batches of 25 until all items are written. # # @param movies [Enumerable] The data to put in the table. Each item must contain at least # the keys required by the schema that was specified when the # table was created. def write_batch(movies) index = 0 slice_size = 25 while index < movies.length movie_items = [] movies[index, slice_size].each do |movie| movie_items.append({ put_request: { item: movie } }) end @dynamo_resource.client.batch_write_item({ request_items: { @table.name => movie_items } }) index += slice_size end rescue Aws::DynamoDB::Errors::ServiceError => e puts( "Couldn't load data into table #{@table.name}. Here's why:" ) puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [BatchWriteItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/BatchWriteItem)consulta *AWS SDK per Ruby API Reference*. ### `CreateTable` Il seguente esempio di codice mostra come utilizzare`CreateTable`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` # Encapsulates an Amazon DynamoDB table of movie data. class Scaffold attr_reader :dynamo_resource, :table_name, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table_name = table_name @table = nil @logger = Logger.new($stdout) @logger.level = Logger::DEBUG end # Creates an Amazon DynamoDB table that can be used to store movie data. # The table uses the release year of the movie as the partition key and the # title as the sort key. # # @param table_name [String] The name of the table to create. # @return [Aws::DynamoDB::Table] The newly created table. def create_table(table_name) @table = @dynamo_resource.create_table( table_name: table_name, key_schema: [ { attribute_name: 'year', key_type: 'HASH' }, # Partition key { attribute_name: 'title', key_type: 'RANGE' } # Sort key ], attribute_definitions: [ { attribute_name: 'year', attribute_type: 'N' }, { attribute_name: 'title', attribute_type: 'S' } ], billing_mode: 'PAY_PER_REQUEST' ) @dynamo_resource.client.wait_until(:table_exists, table_name: table_name) @table rescue Aws::DynamoDB::Errors::ServiceError => e @logger.error("Failed create table #{table_name}:\n#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [CreateTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/CreateTable)consulta *AWS SDK per Ruby API Reference*. ### `DeleteItem` Il seguente esempio di codice mostra come utilizzare`DeleteItem`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` class DynamoDBBasics attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table = @dynamo_resource.table(table_name) end # Deletes a movie from the table. # # @param title [String] The title of the movie to delete. # @param year [Integer] The release year of the movie to delete. def delete_item(title, year) @table.delete_item(key: { 'year' => year, 'title' => title }) rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't delete movie #{title}. Here's why:") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [DeleteItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/DeleteItem)consulta *AWS SDK per Ruby API Reference*. ### `DeleteTable` Il seguente esempio di codice mostra come utilizzare`DeleteTable`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` # Encapsulates an Amazon DynamoDB table of movie data. class Scaffold attr_reader :dynamo_resource, :table_name, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table_name = table_name @table = nil @logger = Logger.new($stdout) @logger.level = Logger::DEBUG end # Deletes the table. def delete_table @table.delete @table = nil rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't delete table. Here's why:") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [DeleteTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/DeleteTable)consulta *AWS SDK per Ruby API Reference*. ### `DescribeTable` Il seguente esempio di codice mostra come utilizzare`DescribeTable`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` # Encapsulates an Amazon DynamoDB table of movie data. class Scaffold attr_reader :dynamo_resource, :table_name, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table_name = table_name @table = nil @logger = Logger.new($stdout) @logger.level = Logger::DEBUG end # Determines whether a table exists. As a side effect, stores the table in # a member variable. # # @param table_name [String] The name of the table to check. # @return [Boolean] True when the table exists; otherwise, False. def exists?(table_name) @dynamo_resource.client.describe_table(table_name: table_name) @logger.debug("Table #{table_name} exists") rescue Aws::DynamoDB::Errors::ResourceNotFoundException @logger.debug("Table #{table_name} doesn't exist") false rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't check for existence of #{table_name}:\n") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [DescribeTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/DescribeTable)consulta *AWS SDK per Ruby API Reference*. ### `ExecuteStatement` Il seguente esempio di codice mostra come utilizzare`ExecuteStatement`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). Selezione di un elemento mediante PartiQL. ``` class DynamoDBPartiQLSingle attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamodb = Aws::DynamoDB::Resource.new(client: client) @table = @dynamodb.table(table_name) end # Gets a single record from a table using PartiQL. # Note: To perform more fine-grained selects, # use the Client.query instance method instead. # # @param title [String] The title of the movie to search. # @return [Aws::DynamoDB::Types::ExecuteStatementOutput] def select_item_by_title(title) request = { statement: "SELECT * FROM \"#{@table.name}\" WHERE title=?", parameters: [title] } @dynamodb.client.execute_statement(request) end ``` Aggiornamento di un elemento mediante PartiQL. ``` class DynamoDBPartiQLSingle attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamodb = Aws::DynamoDB::Resource.new(client: client) @table = @dynamodb.table(table_name) end # Updates a single record from a table using PartiQL. # # @param title [String] The title of the movie to update. # @param year [Integer] The year the movie was released. # @param rating [Float] The new rating to assign the title. # @return [Aws::DynamoDB::Types::ExecuteStatementOutput] def update_rating_by_title(title, year, rating) request = { statement: "UPDATE \"#{@table.name}\" SET info.rating=? WHERE title=? and year=?", parameters: [{ "N": rating }, title, year] } @dynamodb.client.execute_statement(request) end ``` Aggiunta di un elemento mediante PartiQL. ``` class DynamoDBPartiQLSingle attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamodb = Aws::DynamoDB::Resource.new(client: client) @table = @dynamodb.table(table_name) end # Adds a single record to a table using PartiQL. # # @param title [String] The title of the movie to update. # @param year [Integer] The year the movie was released. # @param plot [String] The plot of the movie. # @param rating [Float] The new rating to assign the title. # @return [Aws::DynamoDB::Types::ExecuteStatementOutput] def insert_item(title, year, plot, rating) request = { statement: "INSERT INTO \"#{@table.name}\" VALUE {'title': ?, 'year': ?, 'info': ?}", parameters: [title, year, { 'plot': plot, 'rating': rating }] } @dynamodb.client.execute_statement(request) end ``` Eliminazione di un elemento mediante PartiQL. ``` class DynamoDBPartiQLSingle attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamodb = Aws::DynamoDB::Resource.new(client: client) @table = @dynamodb.table(table_name) end # Deletes a single record from a table using PartiQL. # # @param title [String] The title of the movie to update. # @param year [Integer] The year the movie was released. # @return [Aws::DynamoDB::Types::ExecuteStatementOutput] def delete_item_by_title(title, year) request = { statement: "DELETE FROM \"#{@table.name}\" WHERE title=? and year=?", parameters: [title, year] } @dynamodb.client.execute_statement(request) end ``` + Per i dettagli sull'API, [ExecuteStatement](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/ExecuteStatement)consulta *AWS SDK per Ruby API Reference*. ### `GetItem` Il seguente esempio di codice mostra come utilizzare`GetItem`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` class DynamoDBBasics attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table = @dynamo_resource.table(table_name) end # Gets movie data from the table for a specific movie. # # @param title [String] The title of the movie. # @param year [Integer] The release year of the movie. # @return [Hash] The data about the requested movie. def get_item(title, year) @table.get_item(key: { 'year' => year, 'title' => title }) rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't get movie #{title} (#{year}) from table #{@table.name}:\n") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [GetItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/GetItem)consulta *AWS SDK per Ruby API Reference*. ### `ListTables` Il seguente esempio di codice mostra come utilizzare`ListTables`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/dynamodb#code-examples). Determina se esiste una tabella. ``` # Encapsulates an Amazon DynamoDB table of movie data. class Scaffold attr_reader :dynamo_resource, :table_name, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table_name = table_name @table = nil @logger = Logger.new($stdout) @logger.level = Logger::DEBUG end # Determines whether a table exists. As a side effect, stores the table in # a member variable. # # @param table_name [String] The name of the table to check. # @return [Boolean] True when the table exists; otherwise, False. def exists?(table_name) @dynamo_resource.client.describe_table(table_name: table_name) @logger.debug("Table #{table_name} exists") rescue Aws::DynamoDB::Errors::ResourceNotFoundException @logger.debug("Table #{table_name} doesn't exist") false rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't check for existence of #{table_name}:\n") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [ListTables](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/ListTables)consulta *AWS SDK per Ruby API Reference*. ### `PutItem` Il seguente esempio di codice mostra come utilizzare`PutItem`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` class DynamoDBBasics attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table = @dynamo_resource.table(table_name) end # Adds a movie to the table. # # @param movie [Hash] The title, year, plot, and rating of the movie. def add_item(movie) @table.put_item( item: { 'year' => movie[:year], 'title' => movie[:title], 'info' => { 'plot' => movie[:plot], 'rating' => movie[:rating] } } ) rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't add movie #{title} to table #{@table.name}. Here's why:") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [PutItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/PutItem)consulta *AWS SDK per Ruby API Reference*. ### `Query` Il seguente esempio di codice mostra come utilizzare`Query`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` class DynamoDBBasics attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table = @dynamo_resource.table(table_name) end # Queries for movies that were released in the specified year. # # @param year [Integer] The year to query. # @return [Array] The list of movies that were released in the specified year. def query_items(year) response = @table.query( key_condition_expression: '#yr = :year', expression_attribute_names: { '#yr' => 'year' }, expression_attribute_values: { ':year' => year } ) rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't query for movies released in #{year}. Here's why:") puts("\t#{e.code}: #{e.message}") raise else response.items end ``` + Per informazioni dettagliate sull’API, consulta [Query](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/Query) nella *documentazione di riferimento dell’API AWS SDK per Ruby *. ### `Scan` Il seguente esempio di codice mostra come usare`Scan`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` class DynamoDBBasics attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table = @dynamo_resource.table(table_name) end # Scans for movies that were released in a range of years. # Uses a projection expression to return a subset of data for each movie. # # @param year_range [Hash] The range of years to retrieve. # @return [Array] The list of movies released in the specified years. def scan_items(year_range) movies = [] scan_hash = { filter_expression: '#yr between :start_yr and :end_yr', projection_expression: '#yr, title, info.rating', expression_attribute_names: { '#yr' => 'year' }, expression_attribute_values: { ':start_yr' => year_range[:start], ':end_yr' => year_range[:end] } } done = false start_key = nil until done scan_hash[:exclusive_start_key] = start_key unless start_key.nil? response = @table.scan(scan_hash) movies.concat(response.items) unless response.items.empty? start_key = response.last_evaluated_key done = start_key.nil? end rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't scan for movies. Here's why:") puts("\t#{e.code}: #{e.message}") raise else movies end ``` + Per informazioni dettagliate sull’API, consulta [Scan](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/Scan) nella *documentazione di riferimento dell’API AWS SDK per Ruby *. ### `UpdateItem` Il seguente esempio di codice mostra come usare`UpdateItem`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). ``` class DynamoDBBasics attr_reader :dynamo_resource, :table def initialize(table_name) client = Aws::DynamoDB::Client.new(region: 'us-east-1') @dynamo_resource = Aws::DynamoDB::Resource.new(client: client) @table = @dynamo_resource.table(table_name) end # Updates rating and plot data for a movie in the table. # # @param movie [Hash] The title, year, plot, rating of the movie. def update_item(movie) response = @table.update_item( key: { 'year' => movie[:year], 'title' => movie[:title] }, update_expression: 'set info.rating=:r', expression_attribute_values: { ':r' => movie[:rating] }, return_values: 'UPDATED_NEW' ) rescue Aws::DynamoDB::Errors::ServiceError => e puts("Couldn't update movie #{movie[:title]} (#{movie[:year]}) in table #{@table.name}\n") puts("\t#{e.code}: #{e.message}") raise else response.attributes end ``` + Per i dettagli sull'API, [UpdateItem](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/UpdateItem)consulta *AWS SDK per Ruby API Reference*. ## Scenari ### Esecuzione di una query su una tabella mediante batch di istruzioni PartiQL L’esempio di codice seguente mostra come: + Ricezione di un batch di elementi mediante più istruzioni SELECT. + Aggiunta di un batch di articoli eseguendo più istruzioni INSERT. + Aggiornamento di un batch di elementi mediante più istruzioni UPDATE. + Eliminazione di un batch di elementi mediante più istruzioni DELETE. **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). Esecuzione di uno scenario che crea una tabella ed esegue query PartiQL in batch. ``` table_name = "doc-example-table-movies-partiql-#{rand(10**4)}" scaffold = Scaffold.new(table_name) sdk = DynamoDBPartiQLBatch.new(table_name) new_step(1, 'Create a new DynamoDB table if none already exists.') unless scaffold.exists?(table_name) puts("\nNo such table: #{table_name}. Creating it...") scaffold.create_table(table_name) print "Done!\n".green end new_step(2, 'Populate DynamoDB table with movie data.') download_file = 'moviedata.json' puts("Downloading movie database to #{download_file}...") movie_data = scaffold.fetch_movie_data(download_file) puts("Writing movie data from #{download_file} into your table...") scaffold.write_batch(movie_data) puts("Records added: #{movie_data.length}.") print "Done!\n".green new_step(3, 'Select a batch of items from the movies table.') puts "Let's select some popular movies for side-by-side comparison." response = sdk.batch_execute_select([['Mean Girls', 2004], ['Goodfellas', 1977], ['The Prancing of the Lambs', 2005]]) puts("Items selected: #{response['responses'].length}\n") print "\nDone!\n".green new_step(4, 'Delete a batch of items from the movies table.') sdk.batch_execute_write([['Mean Girls', 2004], ['Goodfellas', 1977], ['The Prancing of the Lambs', 2005]]) print "\nDone!\n".green new_step(5, 'Delete the table.') return unless scaffold.exists?(table_name) scaffold.delete_table end ``` + Per i dettagli sull'API, [BatchExecuteStatement](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/BatchExecuteStatement)consulta *AWS SDK per Ruby API Reference*. ### Esecuzione di una query mediante PartiQL L’esempio di codice seguente mostra come: + Ricezione di un articolo eseguendo un’istruzione SELECT. + Aggiunta di un elemento eseguendo un’istruzione INSERT. + Aggiornamento di un elemento eseguendo un’istruzione UPDATE. + Eliminazione di un elemento eseguendo un’istruzione DELETE. **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/dynamodb#code-examples). Esecuzione di uno scenario che crea una tabella ed esegue query PartiQL. ``` table_name = "doc-example-table-movies-partiql-#{rand(10**8)}" scaffold = Scaffold.new(table_name) sdk = DynamoDBPartiQLSingle.new(table_name) new_step(1, 'Create a new DynamoDB table if none already exists.') unless scaffold.exists?(table_name) puts("\nNo such table: #{table_name}. Creating it...") scaffold.create_table(table_name) print "Done!\n".green end new_step(2, 'Populate DynamoDB table with movie data.') download_file = 'moviedata.json' puts("Downloading movie database to #{download_file}...") movie_data = scaffold.fetch_movie_data(download_file) puts("Writing movie data from #{download_file} into your table...") scaffold.write_batch(movie_data) puts("Records added: #{movie_data.length}.") print "Done!\n".green new_step(3, 'Select a single item from the movies table.') response = sdk.select_item_by_title('Star Wars') puts("Items selected for title 'Star Wars': #{response.items.length}\n") print response.items.first.to_s.yellow print "\n\nDone!\n".green new_step(4, 'Update a single item from the movies table.') puts "Let's correct the rating on The Big Lebowski to 10.0." sdk.update_rating_by_title('The Big Lebowski', 1998, 10.0) print "\nDone!\n".green new_step(5, 'Delete a single item from the movies table.') puts "Let's delete The Silence of the Lambs because it's just too scary." sdk.delete_item_by_title('The Silence of the Lambs', 1991) print "\nDone!\n".green new_step(6, 'Insert a new item into the movies table.') puts "Let's create a less-scary movie called The Prancing of the Lambs." sdk.insert_item('The Prancing of the Lambs', 2005, 'A movie about happy livestock.', 5.0) print "\nDone!\n".green new_step(7, 'Delete the table.') return unless scaffold.exists?(table_name) scaffold.delete_table end ``` + Per i dettagli sull'API, [ExecuteStatement](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/ExecuteStatement)consulta *AWS SDK per Ruby API Reference*. ## Esempi serverless ### Invocare una funzione Lambda da un trigger DynamoDB L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un flusso DynamoDB. La funzione recupera il payload DynamoDB e registra il contenuto del record. **SDK per Ruby** C'è altro su GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-ddb-to-lambda). Utilizzo di un evento DynamoDB con Lambda tramite Ruby. ``` def lambda_handler(event:, context:) return 'received empty event' if event['Records'].empty? event['Records'].each do |record| log_dynamodb_record(record) end "Records processed: #{event['Records'].length}" end def log_dynamodb_record(record) puts record['eventID'] puts record['eventName'] puts "DynamoDB Record: #{JSON.generate(record['dynamodb'])}" end ``` ### Segnalazione di errori di elementi batch per funzioni Lambda con un trigger DynamoDB L’esempio di codice seguente mostra come implementare una risposta batch parziale per funzioni Lambda che ricevono eventi da un flusso DynamoDB. La funzione riporta gli errori degli elementi batch nella risposta, segnalando a Lambda di riprovare tali messaggi in un secondo momento. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-ddb-to-lambda-with-batch-item-handling). Segnalazione di errori di elementi batch di DynamoDB con Lambda tramite Ruby. ``` def lambda_handler(event:, context:) records = event["Records"] cur_record_sequence_number = "" records.each do |record| begin # Process your record cur_record_sequence_number = record["dynamodb"]["SequenceNumber"] rescue StandardError => e # Return failed record's sequence number return {"batchItemFailures" => [{"itemIdentifier" => cur_record_sequence_number}]} end end {"batchItemFailures" => []} end ``` # Esempi per Amazon EC2 con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon EC2. AWS SDK per Ruby Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) + [Azioni](#actions) ## Nozioni di base ### Hello Amazon EC2 Il seguente esempio di codice mostra come iniziare a usare Amazon EC2. **SDK per Ruby** C'è altro su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' require 'logger' # EC2Manager is a class responsible for managing EC2 operations # such as listing all EC2 instances in the current AWS account. class EC2Manager def initialize(client) @client = client @logger = Logger.new($stdout) end # Lists and prints all EC2 instances in the current AWS account. def list_instances @logger.info('Listing instances') instances = fetch_instances if instances.empty? @logger.info('You have no instances') else print_instances(instances) end end private # Fetches all EC2 instances using pagination. # # @return [Array] List of EC2 instances. def fetch_instances paginator = @client.describe_instances instances = [] paginator.each_page do |page| page.reservations.each do |reservation| reservation.instances.each do |instance| instances << instance end end end instances end # Prints details of the given EC2 instances. # # @param instances [Array] List of EC2 instances to print. def print_instances(instances) instances.each do |instance| @logger.info("Instance ID: #{instance.instance_id}") @logger.info("Instance Type: #{instance.instance_type}") @logger.info("Public IP: #{instance.public_ip_address}") @logger.info("Public DNS Name: #{instance.public_dns_name}") @logger.info("\n") end end end if $PROGRAM_NAME == __FILE__ ec2_client = Aws::EC2::Client.new(region: 'us-west-2') manager = EC2Manager.new(ec2_client) manager.list_instances end ``` + Per i dettagli sull'API, [DescribeSecurityGroups](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/DescribeSecurityGroups)consulta *AWS SDK per Ruby API Reference*. ## Azioni ### `AllocateAddress` Il seguente esempio di codice mostra come utilizzare`AllocateAddress`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` # Creates an Elastic IP address in Amazon Virtual Private Cloud (Amazon VPC). # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @return [String] The allocation ID corresponding to the Elastic IP address. # @example # puts allocate_elastic_ip_address(Aws::EC2::Client.new(region: 'us-west-2')) def allocate_elastic_ip_address(ec2_client) response = ec2_client.allocate_address(domain: 'vpc') response.allocation_id rescue StandardError => e puts "Error allocating Elastic IP address: #{e.message}" 'Error' end ``` + Per i dettagli sull'API, [AllocateAddress](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/AllocateAddress)consulta *AWS SDK per Ruby API Reference*. ### `AssociateAddress` Il seguente esempio di codice mostra come utilizzare`AssociateAddress`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` # Associates an Elastic IP address with an Amazon Elastic Compute Cloud # (Amazon EC2) instance. # # Prerequisites: # # - The allocation ID corresponding to the Elastic IP address. # - The Amazon EC2 instance. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param allocation_id [String] The ID of the allocation corresponding to # the Elastic IP address. # @param instance_id [String] The ID of the instance. # @return [String] The assocation ID corresponding to the association of the # Elastic IP address to the instance. # @example # puts allocate_elastic_ip_address( # Aws::EC2::Client.new(region: 'us-west-2'), # 'eipalloc-04452e528a66279EX', # 'i-033c48ef067af3dEX') def associate_elastic_ip_address_with_instance( ec2_client, allocation_id, instance_id ) response = ec2_client.associate_address( allocation_id: allocation_id, instance_id: instance_id ) response.association_id rescue StandardError => e puts "Error associating Elastic IP address with instance: #{e.message}" 'Error' end ``` + Per i dettagli sull'API, [AssociateAddress](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/AssociateAddress)consulta *AWS SDK per Ruby API Reference*. ### `CreateKeyPair` Il seguente esempio di codice mostra come utilizzare`CreateKeyPair`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` # This code example does the following: # 1. Creates a key pair in Amazon Elastic Compute Cloud (Amazon EC2). # 2. Displays information about available key pairs. # 3. Deletes the key pair. require 'aws-sdk-ec2' # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param key_pair_name [String] The name for the key pair and private # key file. # @return [Boolean] true if the key pair and private key file were # created; otherwise, false. # @example # exit 1 unless key_pair_created?( # Aws::EC2::Client.new(region: 'us-west-2'), # 'my-key-pair' # ) def key_pair_created?(ec2_client, key_pair_name) key_pair = ec2_client.create_key_pair(key_name: key_pair_name) puts "Created key pair '#{key_pair.key_name}' with fingerprint " \ "'#{key_pair.key_fingerprint}' and ID '#{key_pair.key_pair_id}'." filename = File.join(Dir.home, "#{key_pair_name}.pem") File.open(filename, 'w') { |file| file.write(key_pair.key_material) } puts "Private key file saved locally as '#{filename}'." true rescue Aws::EC2::Errors::InvalidKeyPairDuplicate puts "Error creating key pair: a key pair named '#{key_pair_name}' " \ 'already exists.' false rescue StandardError => e puts "Error creating key pair or saving private key file: #{e.message}" false end # Displays information about available key pairs in # Amazon Elastic Compute Cloud (Amazon EC2). # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @example # describe_key_pairs(Aws::EC2::Client.new(region: 'us-west-2')) def describe_key_pairs(ec2_client) result = ec2_client.describe_key_pairs if result.key_pairs.count.zero? puts 'No key pairs found.' else puts 'Key pair names:' result.key_pairs.each do |key_pair| puts key_pair.key_name end end rescue StandardError => e puts "Error getting information about key pairs: #{e.message}" end # Deletes a key pair in Amazon Elastic Compute Cloud (Amazon EC2). # # Prerequisites: # # - The key pair to delete. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param key_pair_name [String] The name of the key pair to delete. # @return [Boolean] true if the key pair was deleted; otherwise, false. # @example # exit 1 unless key_pair_deleted?( # Aws::EC2::Client.new(region: 'us-west-2'), # 'my-key-pair' # ) def key_pair_deleted?(ec2_client, key_pair_name) ec2_client.delete_key_pair(key_name: key_pair_name) true rescue StandardError => e puts "Error deleting key pair: #{e.message}" false end # Example usage: def run_me key_pair_name = '' region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-key-pairs.rb KEY_PAIR_NAME REGION' puts 'Example: ruby ec2-ruby-example-key-pairs.rb my-key-pair us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. # Replace us-west-2 with the AWS Region you're using for Amazon EC2. elsif ARGV.count.zero? key_pair_name = 'my-key-pair' region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else key_pair_name = ARGV[0] region = ARGV[1] end ec2_client = Aws::EC2::Client.new(region: region) puts 'Displaying existing key pair names before creating this key pair...' describe_key_pairs(ec2_client) puts '-' * 10 puts 'Creating key pair...' unless key_pair_created?(ec2_client, key_pair_name) puts 'Stopping program.' exit 1 end puts '-' * 10 puts 'Displaying existing key pair names after creating this key pair...' describe_key_pairs(ec2_client) puts '-' * 10 puts 'Deleting key pair...' unless key_pair_deleted?(ec2_client, key_pair_name) puts 'Stopping program. You must delete the key pair yourself.' exit 1 end puts 'Key pair deleted.' puts '-' * 10 puts 'Now that the key pair is deleted, ' \ 'also deleting the related private key pair file...' filename = File.join(Dir.home, "#{key_pair_name}.pem") File.delete(filename) if File.exist?(filename) puts "Could not delete file at '#{filename}'. You must delete it yourself." else puts 'File deleted.' end puts '-' * 10 puts 'Displaying existing key pair names after deleting this key pair...' describe_key_pairs(ec2_client) end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [CreateKeyPair](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/CreateKeyPair)consulta *AWS SDK per Ruby API Reference*. ### `CreateRouteTable` Il seguente esempio di codice mostra come utilizzare`CreateRouteTable`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # Prerequisites: # # - A VPC in Amazon VPC. # - A subnet in that VPC. # - A gateway attached to that subnet. # # @param ec2_resource [Aws::EC2::Resource] An initialized # Amazon Elastic Compute Cloud (Amazon EC2) resource object. # @param vpc_id [String] The ID of the VPC for the route table. # @param subnet_id [String] The ID of the subnet for the route table. # @param gateway_id [String] The ID of the gateway for the route. # @param destination_cidr_block [String] The destination CIDR block # for the route. # @param tag_key [String] The key portion of the tag for the route table. # @param tag_value [String] The value portion of the tag for the route table. # @return [Boolean] true if the route table was created and associated; # otherwise, false. # @example # exit 1 unless route_table_created_and_associated?( # Aws::EC2::Resource.new(region: 'us-west-2'), # 'vpc-0b6f769731EXAMPLE', # 'subnet-03d9303b57EXAMPLE', # 'igw-06ca90c011EXAMPLE', # '0.0.0.0/0', # 'my-key', # 'my-value' # ) def route_table_created_and_associated?( ec2_resource, vpc_id, subnet_id, gateway_id, destination_cidr_block, tag_key, tag_value ) route_table = ec2_resource.create_route_table(vpc_id: vpc_id) puts "Created route table with ID '#{route_table.id}'." route_table.create_tags( tags: [ { key: tag_key, value: tag_value } ] ) puts 'Added tags to route table.' route_table.create_route( destination_cidr_block: destination_cidr_block, gateway_id: gateway_id ) puts 'Created route with destination CIDR block ' \ "'#{destination_cidr_block}' and associated with gateway " \ "with ID '#{gateway_id}'." route_table.associate_with_subnet(subnet_id: subnet_id) puts "Associated route table with subnet with ID '#{subnet_id}'." true rescue StandardError => e puts "Error creating or associating route table: #{e.message}" puts 'If the route table was created but not associated, you should ' \ 'clean up by deleting the route table.' false end # Example usage: def run_me vpc_id = '' subnet_id = '' gateway_id = '' destination_cidr_block = '' tag_key = '' tag_value = '' region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-create-route-table.rb ' \ 'VPC_ID SUBNET_ID GATEWAY_ID DESTINATION_CIDR_BLOCK ' \ 'TAG_KEY TAG_VALUE REGION' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-create-route-table.rb ' \ 'vpc-0b6f769731EXAMPLE subnet-03d9303b57EXAMPLE igw-06ca90c011EXAMPLE ' \ "'0.0.0.0/0' my-key my-value us-west-2" exit 1 # If no values are specified at the command prompt, use these default values. elsif ARGV.count.zero? vpc_id = 'vpc-0b6f769731EXAMPLE' subnet_id = 'subnet-03d9303b57EXAMPLE' gateway_id = 'igw-06ca90c011EXAMPLE' destination_cidr_block = '0.0.0.0/0' tag_key = 'my-key' tag_value = 'my-value' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else vpc_id = ARGV[0] subnet_id = ARGV[1] gateway_id = ARGV[2] destination_cidr_block = ARGV[3] tag_key = ARGV[4] tag_value = ARGV[5] region = ARGV[6] end ec2_resource = Aws::EC2::Resource.new(region: region) if route_table_created_and_associated?( ec2_resource, vpc_id, subnet_id, gateway_id, destination_cidr_block, tag_key, tag_value ) puts 'Route table created and associated.' else puts 'Route table not created or not associated.' end end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [CreateRouteTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/CreateRouteTable)consulta *AWS SDK per Ruby API Reference*. ### `CreateSecurityGroup` Il seguente esempio di codice mostra come utilizzare`CreateSecurityGroup`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` # This code example does the following: # 1. Creates an Amazon Elastic Compute Cloud (Amazon EC2) security group. # 2. Adds inbound rules to the security group. # 3. Displays information about available security groups. # 4. Deletes the security group. require 'aws-sdk-ec2' # Creates an Amazon Elastic Compute Cloud (Amazon EC2) security group. # # Prerequisites: # # - A VPC in Amazon Virtual Private Cloud (Amazon VPC). # # @param ec2_client [Aws::EC2::Client] An initialized # Amazon EC2 client. # @param group_name [String] A name for the security group. # @param description [String] A description for the security group. # @param vpc_id [String] The ID of the VPC for the security group. # @return [String] The ID of security group that was created. # @example # puts create_security_group( # Aws::EC2::Client.new(region: 'us-west-2'), # 'my-security-group', # 'This is my security group.', # 'vpc-6713dfEX' # ) def create_security_group(ec2_client, group_name, description, vpc_id) security_group = ec2_client.create_security_group( group_name: group_name, description: description, vpc_id: vpc_id ) puts "Created security group '#{group_name}' with ID " \ "'#{security_group.group_id}' in VPC with ID '#{vpc_id}'." security_group.group_id rescue StandardError => e puts "Error creating security group: #{e.message}" 'Error' end # Adds an inbound rule to an Amazon Elastic Compute Cloud (Amazon EC2) # security group. # # Prerequisites: # # - The security group. # # @param ec2_client [Aws::EC2::Client] An initialized Amazon EC2 client. # @param security_group_id [String] The ID of the security group. # @param ip_protocol [String] The network protocol for the inbound rule. # @param from_port [String] The originating port for the inbound rule. # @param to_port [String] The destination port for the inbound rule. # @param cidr_ip_range [String] The CIDR IP range for the inbound rule. # @return # @example # exit 1 unless security_group_ingress_authorized?( # Aws::EC2::Client.new(region: 'us-west-2'), # 'sg-030a858e078f1b9EX', # 'tcp', # '80', # '80', # '0.0.0.0/0' # ) def security_group_ingress_authorized?( ec2_client, security_group_id, ip_protocol, from_port, to_port, cidr_ip_range ) ec2_client.authorize_security_group_ingress( group_id: security_group_id, ip_permissions: [ { ip_protocol: ip_protocol, from_port: from_port, to_port: to_port, ip_ranges: [ { cidr_ip: cidr_ip_range } ] } ] ) puts "Added inbound rule to security group '#{security_group_id}' for protocol " \ "'#{ip_protocol}' from port '#{from_port}' to port '#{to_port}' " \ "with CIDR IP range '#{cidr_ip_range}'." true rescue StandardError => e puts "Error adding inbound rule to security group: #{e.message}" false end # Refactored method to simplify complexity for describing security group permissions def format_port_information(perm) from_port_str = perm.from_port == '-1' || perm.from_port == -1 ? 'All' : perm.from_port.to_s to_port_str = perm.to_port == '-1' || perm.to_port == -1 ? 'All' : perm.to_port.to_s { from_port: from_port_str, to_port: to_port_str } end # Displays information about a security group's IP permissions set in # Amazon Elastic Compute Cloud (Amazon EC2). def describe_security_group_permissions(perm) ports = format_port_information(perm) print " Protocol: #{perm.ip_protocol == '-1' ? 'All' : perm.ip_protocol}" print ", From: #{ports[:from_port]}, To: #{ports[:to_port]}" print ", CIDR IPv6: #{perm.ipv_6_ranges[0].cidr_ipv_6}" if perm.key?(:ipv_6_ranges) && perm.ipv_6_ranges.count.positive? print ", CIDR IPv4: #{perm.ip_ranges[0].cidr_ip}" if perm.key?(:ip_ranges) && perm.ip_ranges.count.positive? print "\n" end # Displays information about available security groups in # Amazon Elastic Compute Cloud (Amazon EC2). def describe_security_groups(ec2_client) response = ec2_client.describe_security_groups if response.security_groups.count.positive? response.security_groups.each do |sg| display_group_details(sg) end else puts 'No security groups found.' end rescue StandardError => e puts "Error getting information about security groups: #{e.message}" end # Helper method to display the details of security groups def display_group_details(sg) puts '-' * (sg.group_name.length + 13) puts "Name: #{sg.group_name}" puts "Description: #{sg.description}" puts "Group ID: #{sg.group_id}" puts "Owner ID: #{sg.owner_id}" puts "VPC ID: #{sg.vpc_id}" display_group_tags(sg.tags) if sg.tags.count.positive? display_group_permissions(sg) end def display_group_tags(tags) puts 'Tags:' tags.each do |tag| puts " Key: #{tag.key}, Value: #{tag.value}" end end def display_group_permissions(sg) if sg.ip_permissions.count.positive? puts 'Inbound rules:' sg.ip_permissions.each do |p| describe_security_group_permissions(p) end end return if sg.ip_permissions_egress.empty? puts 'Outbound rules:' sg.ip_permissions_egress.each do |p| describe_security_group_permissions(p) end end # Deletes an Amazon Elastic Compute Cloud (Amazon EC2) # security group. def security_group_deleted?(ec2_client, security_group_id) ec2_client.delete_security_group(group_id: security_group_id) puts "Deleted security group '#{security_group_id}'." true rescue StandardError => e puts "Error deleting security group: #{e.message}" false end # Example usage with refactored run_me to reduce complexity def run_me group_name, description, vpc_id, ip_protocol_http, from_port_http, to_port_http, \ cidr_ip_range_http, ip_protocol_ssh, from_port_ssh, to_port_ssh, \ cidr_ip_range_ssh, region = process_arguments ec2_client = Aws::EC2::Client.new(region: region) security_group_id = attempt_create_security_group(ec2_client, group_name, description, vpc_id) security_group_exists = security_group_id != 'Error' if security_group_exists add_inbound_rules(ec2_client, security_group_id, ip_protocol_http, from_port_http, to_port_http, cidr_ip_range_http) add_inbound_rules(ec2_client, security_group_id, ip_protocol_ssh, from_port_ssh, to_port_ssh, cidr_ip_range_ssh) end describe_security_groups(ec2_client) attempt_delete_security_group(ec2_client, security_group_id) if security_group_exists end def process_arguments if ARGV[0] == '--help' || ARGV[0] == '-h' display_help exit 1 elsif ARGV.count.zero? default_values else ARGV end end def attempt_create_security_group(ec2_client, group_name, description, vpc_id) puts 'Attempting to create security group...' security_group_id = create_security_group(ec2_client, group_name, description, vpc_id) puts 'Could not create security group. Skipping this step.' if security_group_id == 'Error' security_group_id end def add_inbound_rules(ec2_client, security_group_id, ip_protocol, from_port, to_port, cidr_ip_range) puts 'Attempting to add inbound rules to security group...' return if security_group_ingress_authorized?(ec2_client, security_group_id, ip_protocol, from_port, to_port, cidr_ip_range) puts 'Could not add inbound rule to security group. Skipping this step.' end def attempt_delete_security_group(ec2_client, security_group_id) puts "\nAttempting to delete security group..." return if security_group_deleted?(ec2_client, security_group_id) puts 'Could not delete security group. You must delete it yourself.' end def display_help puts 'Usage: ruby ec2-ruby-example-security-group.rb ' \ 'GROUP_NAME DESCRIPTION VPC_ID IP_PROTOCOL_1 FROM_PORT_1 TO_PORT_1 ' \ 'CIDR_IP_RANGE_1 IP_PROTOCOL_2 FROM_PORT_2 TO_PORT_2 ' \ 'CIDR_IP_RANGE_2 REGION' puts 'Example: ruby ec2-ruby-example-security-group.rb ' \ "my-security-group 'This is my security group.' vpc-6713dfEX " \ "tcp 80 80 '0.0.0.0/0' tcp 22 22 '0.0.0.0/0' us-west-2" end def default_values [ 'my-security-group', 'This is my security group.', 'vpc-6713dfEX', 'tcp', '80', '80', '0.0.0.0/0', 'tcp', '22', '22', '0.0.0.0/0', 'us-west-2' ] end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [CreateSecurityGroup](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/CreateSecurityGroup)consulta *AWS SDK per Ruby API Reference*. ### `CreateSubnet` Il seguente esempio di codice mostra come utilizzare`CreateSubnet`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # Creates a subnet within a virtual private cloud (VPC) in # Amazon Virtual Private Cloud (Amazon VPC) and then tags # the subnet. # # Prerequisites: # # - A VPC in Amazon VPC. # # @param ec2_resource [Aws::EC2::Resource] An initialized # Amazon Elastic Compute Cloud (Amazon EC2) resource object. # @param vpc_id [String] The ID of the VPC for the subnet. # @param cidr_block [String] The IPv4 CIDR block for the subnet. # @param availability_zone [String] The ID of the Availability Zone # for the subnet. # @param tag_key [String] The key portion of the tag for the subnet. # @param tag_vlue [String] The value portion of the tag for the subnet. # @return [Boolean] true if the subnet was created and tagged; # otherwise, false. # @example # exit 1 unless subnet_created_and_tagged?( # Aws::EC2::Resource.new(region: 'us-west-2'), # 'vpc-6713dfEX', # '10.0.0.0/24', # 'us-west-2a', # 'my-key', # 'my-value' # ) def subnet_created_and_tagged?( ec2_resource, vpc_id, cidr_block, availability_zone, tag_key, tag_value ) subnet = ec2_resource.create_subnet( vpc_id: vpc_id, cidr_block: cidr_block, availability_zone: availability_zone ) subnet.create_tags( tags: [ { key: tag_key, value: tag_value } ] ) puts "Subnet created with ID '#{subnet.id}' in VPC with ID '#{vpc_id}' " \ "and CIDR block '#{cidr_block}' in availability zone " \ "'#{availability_zone}' and tagged with key '#{tag_key}' and " \ "value '#{tag_value}'." true rescue StandardError => e puts "Error creating or tagging subnet: #{e.message}" false end # Example usage: def run_me vpc_id = '' cidr_block = '' availability_zone = '' tag_key = '' tag_value = '' region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-create-subnet.rb ' \ 'VPC_ID CIDR_BLOCK AVAILABILITY_ZONE TAG_KEY TAG_VALUE REGION' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-create-subnet.rb ' \ 'vpc-6713dfEX 10.0.0.0/24 us-west-2a my-key my-value us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. elsif ARGV.count.zero? vpc_id = 'vpc-6713dfEX' cidr_block = '10.0.0.0/24' availability_zone = 'us-west-2a' tag_key = 'my-key' tag_value = 'my-value' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else vpc_id = ARGV[0] cidr_block = ARGV[1] availability_zone = ARGV[2] tag_key = ARGV[3] tag_value = ARGV[4] region = ARGV[5] end ec2_resource = Aws::EC2::Resource.new(region: region) if subnet_created_and_tagged?( ec2_resource, vpc_id, cidr_block, availability_zone, tag_key, tag_value ) puts 'Subnet created and tagged.' else puts 'Subnet not created or not tagged.' end end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [CreateSubnet](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/CreateSubnet)consulta *AWS SDK per Ruby API Reference*. ### `CreateVpc` Il seguente esempio di codice mostra come utilizzare`CreateVpc`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # Creates a virtual private cloud (VPC) in # Amazon Virtual Private Cloud (Amazon VPC) and then tags # the VPC. # # @param ec2_resource [Aws::EC2::Resource] An initialized # Amazon Elastic Compute Cloud (Amazon EC2) resource object. # @param cidr_block [String] The IPv4 CIDR block for the subnet. # @param tag_key [String] The key portion of the tag for the VPC. # @param tag_value [String] The value portion of the tag for the VPC. # @return [Boolean] true if the VPC was created and tagged; # otherwise, false. # @example # exit 1 unless vpc_created_and_tagged?( # Aws::EC2::Resource.new(region: 'us-west-2'), # '10.0.0.0/24', # 'my-key', # 'my-value' # ) def vpc_created_and_tagged?( ec2_resource, cidr_block, tag_key, tag_value ) vpc = ec2_resource.create_vpc(cidr_block: cidr_block) # Create a public DNS by enabling DNS support and DNS hostnames. vpc.modify_attribute(enable_dns_support: { value: true }) vpc.modify_attribute(enable_dns_hostnames: { value: true }) vpc.create_tags(tags: [{ key: tag_key, value: tag_value }]) puts "Created VPC with ID '#{vpc.id}' and tagged with key " \ "'#{tag_key}' and value '#{tag_value}'." true rescue StandardError => e puts e.message false end # Example usage: def run_me cidr_block = '' tag_key = '' tag_value = '' region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-create-vpc.rb ' \ 'CIDR_BLOCK TAG_KEY TAG_VALUE REGION' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-create-vpc.rb ' \ '10.0.0.0/24 my-key my-value us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. elsif ARGV.count.zero? cidr_block = '10.0.0.0/24' tag_key = 'my-key' tag_value = 'my-value' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else cidr_block = ARGV[0] tag_key = ARGV[1] tag_value = ARGV[2] region = ARGV[3] end ec2_resource = Aws::EC2::Resource.new(region: region) if vpc_created_and_tagged?( ec2_resource, cidr_block, tag_key, tag_value ) puts 'VPC created and tagged.' else puts 'VPC not created or not tagged.' end end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [CreateVpc](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/CreateVpc)consulta *AWS SDK per Ruby API Reference*. ### `DescribeInstances` Il seguente esempio di codice mostra come utilizzare`DescribeInstances`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # @param ec2_resource [Aws::EC2::Resource] An initialized EC2 resource object. # @example # list_instance_ids_states(Aws::EC2::Resource.new(region: 'us-west-2')) def list_instance_ids_states(ec2_resource) response = ec2_resource.instances if response.count.zero? puts 'No instances found.' else puts 'Instances -- ID, state:' response.each do |instance| puts "#{instance.id}, #{instance.state.name}" end end rescue StandardError => e puts "Error getting information about instances: #{e.message}" end # Example usage: def run_me region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-get-all-instance-info.rb REGION' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-get-all-instance-info.rb us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. # Replace us-west-2 with the AWS Region you're using for Amazon EC2. elsif ARGV.count.zero? region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else region = ARGV[0] end ec2_resource = Aws::EC2::Resource.new(region: region) list_instance_ids_states(ec2_resource) end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [DescribeInstances](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/DescribeInstances)consulta *AWS SDK per Ruby API Reference*. ### `DescribeRegions` Il seguente esempio di codice mostra come utilizzare`DescribeRegions`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @example # list_regions_endpoints(Aws::EC2::Client.new(region: 'us-west-2')) def list_regions_endpoints(ec2_client) result = ec2_client.describe_regions # Enable pretty printing. max_region_string_length = 16 max_endpoint_string_length = 33 # Print header. print 'Region' print ' ' * (max_region_string_length - 'Region'.length) print " Endpoint\n" print '-' * max_region_string_length print ' ' print '-' * max_endpoint_string_length print "\n" # Print Regions and their endpoints. result.regions.each do |region| print region.region_name print ' ' * (max_region_string_length - region.region_name.length) print ' ' print region.endpoint print "\n" end end # Displays a list of Amazon Elastic Compute Cloud (Amazon EC2) # Availability Zones available to you depending on the AWS Region # of the Amazon EC2 client. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @example # list_availability_zones(Aws::EC2::Client.new(region: 'us-west-2')) def list_availability_zones(ec2_client) result = ec2_client.describe_availability_zones # Enable pretty printing. max_region_string_length = 16 max_zone_string_length = 18 max_state_string_length = 9 # Print header. print 'Region' print ' ' * (max_region_string_length - 'Region'.length) print ' Zone' print ' ' * (max_zone_string_length - 'Zone'.length) print " State\n" print '-' * max_region_string_length print ' ' print '-' * max_zone_string_length print ' ' print '-' * max_state_string_length print "\n" # Print Regions, Availability Zones, and their states. result.availability_zones.each do |zone| print zone.region_name print ' ' * (max_region_string_length - zone.region_name.length) print ' ' print zone.zone_name print ' ' * (max_zone_string_length - zone.zone_name.length) print ' ' print zone.state # Print any messages for this Availability Zone. if zone.messages.count.positive? print "\n" puts ' Messages for this zone:' zone.messages.each do |message| print " #{message.message}\n" end end print "\n" end end # Example usage: def run_me region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-regions-availability-zones.rb REGION' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-regions-availability-zones.rb us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. # Replace us-west-2 with the AWS Region you're using for Amazon EC2. elsif ARGV.count.zero? region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else region = ARGV[0] end ec2_client = Aws::EC2::Client.new(region: region) puts 'AWS Regions for Amazon EC2 that are available to you:' list_regions_endpoints(ec2_client) puts "\n\nAmazon EC2 Availability Zones that are available to you for AWS Region '#{region}':" list_availability_zones(ec2_client) end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [DescribeRegions](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/DescribeRegions)consulta *AWS SDK per Ruby API Reference*. ### `ReleaseAddress` Il seguente esempio di codice mostra come utilizzare`ReleaseAddress`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` # Releases an Elastic IP address from an # Amazon Elastic Compute Cloud (Amazon EC2) instance. # # Prerequisites: # # - An Amazon EC2 instance with an associated Elastic IP address. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param allocation_id [String] The ID of the allocation corresponding to # the Elastic IP address. # @return [Boolean] true if the Elastic IP address was released; # otherwise, false. # @example # exit 1 unless elastic_ip_address_released?( # Aws::EC2::Client.new(region: 'us-west-2'), # 'eipalloc-04452e528a66279EX' # ) def elastic_ip_address_released?(ec2_client, allocation_id) ec2_client.release_address(allocation_id: allocation_id) true rescue StandardError => e puts("Error releasing Elastic IP address: #{e.message}") false end ``` + Per i dettagli sull'API, [ReleaseAddress](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/ReleaseAddress)consulta *AWS SDK per Ruby API Reference*. ### `StartInstances` Il seguente esempio di codice mostra come utilizzare`StartInstances`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # Attempts to start an Amazon Elastic Compute Cloud (Amazon EC2) instance. # # Prerequisites: # # - The Amazon EC2 instance. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param instance_id [String] The ID of the instance. # @return [Boolean] true if the instance was started; otherwise, false. # @example # exit 1 unless instance_started?( # Aws::EC2::Client.new(region: 'us-west-2'), # 'i-123abc' # ) def instance_started?(ec2_client, instance_id) response = ec2_client.describe_instance_status(instance_ids: [instance_id]) if response.instance_statuses.count.positive? state = response.instance_statuses[0].instance_state.name case state when 'pending' puts 'Error starting instance: the instance is pending. Try again later.' return false when 'running' puts 'The instance is already running.' return true when 'terminated' puts 'Error starting instance: ' \ 'the instance is terminated, so you cannot start it.' return false end end ec2_client.start_instances(instance_ids: [instance_id]) ec2_client.wait_until(:instance_running, instance_ids: [instance_id]) puts 'Instance started.' true rescue StandardError => e puts "Error starting instance: #{e.message}" false end # Example usage: def run_me instance_id = '' region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-start-instance-i-123abc.rb ' \ 'INSTANCE_ID REGION ' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-start-instance-i-123abc.rb ' \ 'i-123abc us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. # Replace us-west-2 with the AWS Region you're using for Amazon EC2. elsif ARGV.count.zero? instance_id = 'i-123abc' region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else instance_id = ARGV[0] region = ARGV[1] end ec2_client = Aws::EC2::Client.new(region: region) puts "Attempting to start instance '#{instance_id}' " \ '(this might take a few minutes)...' return if instance_started?(ec2_client, instance_id) puts 'Could not start instance.' end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [StartInstances](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/StartInstances)consulta *AWS SDK per Ruby API Reference*. ### `StopInstances` Il seguente esempio di codice mostra come utilizzare`StopInstances`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # Prerequisites: # # - The Amazon EC2 instance. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param instance_id [String] The ID of the instance. # @return [Boolean] true if the instance was stopped; otherwise, false. # @example # exit 1 unless instance_stopped?( # Aws::EC2::Client.new(region: 'us-west-2'), # 'i-123abc' # ) def instance_stopped?(ec2_client, instance_id) response = ec2_client.describe_instance_status(instance_ids: [instance_id]) if response.instance_statuses.count.positive? state = response.instance_statuses[0].instance_state.name case state when 'stopping' puts 'The instance is already stopping.' return true when 'stopped' puts 'The instance is already stopped.' return true when 'terminated' puts 'Error stopping instance: ' \ 'the instance is terminated, so you cannot stop it.' return false end end ec2_client.stop_instances(instance_ids: [instance_id]) ec2_client.wait_until(:instance_stopped, instance_ids: [instance_id]) puts 'Instance stopped.' true rescue StandardError => e puts "Error stopping instance: #{e.message}" false end # Example usage: def run_me instance_id = '' region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-stop-instance-i-123abc.rb ' \ 'INSTANCE_ID REGION ' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-start-instance-i-123abc.rb ' \ 'i-123abc us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. # Replace us-west-2 with the AWS Region you're using for Amazon EC2. elsif ARGV.count.zero? instance_id = 'i-123abc' region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else instance_id = ARGV[0] region = ARGV[1] end ec2_client = Aws::EC2::Client.new(region: region) puts "Attempting to stop instance '#{instance_id}' " \ '(this might take a few minutes)...' return if instance_stopped?(ec2_client, instance_id) puts 'Could not stop instance.' end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [StopInstances](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/StopInstances)consulta *AWS SDK per Ruby API Reference*. ### `TerminateInstances` Il seguente esempio di codice mostra come utilizzare`TerminateInstances`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ec2#code-examples). ``` require 'aws-sdk-ec2' # Prerequisites: # # - The Amazon EC2 instance. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param instance_id [String] The ID of the instance. # @return [Boolean] true if the instance was terminated; otherwise, false. # @example # exit 1 unless instance_terminated?( # Aws::EC2::Client.new(region: 'us-west-2'), # 'i-123abc' # ) def instance_terminated?(ec2_client, instance_id) response = ec2_client.describe_instance_status(instance_ids: [instance_id]) if response.instance_statuses.count.positive? && response.instance_statuses[0].instance_state.name == 'terminated' puts 'The instance is already terminated.' return true end ec2_client.terminate_instances(instance_ids: [instance_id]) ec2_client.wait_until(:instance_terminated, instance_ids: [instance_id]) puts 'Instance terminated.' true rescue StandardError => e puts "Error terminating instance: #{e.message}" false end # Example usage: def run_me instance_id = '' region = '' # Print usage information and then stop. if ARGV[0] == '--help' || ARGV[0] == '-h' puts 'Usage: ruby ec2-ruby-example-terminate-instance-i-123abc.rb ' \ 'INSTANCE_ID REGION ' # Replace us-west-2 with the AWS Region you're using for Amazon EC2. puts 'Example: ruby ec2-ruby-example-terminate-instance-i-123abc.rb ' \ 'i-123abc us-west-2' exit 1 # If no values are specified at the command prompt, use these default values. # Replace us-west-2 with the AWS Region you're using for Amazon EC2. elsif ARGV.count.zero? instance_id = 'i-123abc' region = 'us-west-2' # Otherwise, use the values as specified at the command prompt. else instance_id = ARGV[0] region = ARGV[1] end ec2_client = Aws::EC2::Client.new(region: region) puts "Attempting to terminate instance '#{instance_id}' " \ '(this might take a few minutes)...' return if instance_terminated?(ec2_client, instance_id) puts 'Could not terminate instance.' end run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, [TerminateInstances](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/TerminateInstances)consulta *AWS SDK per Ruby API Reference*. # Esempi per Elastic Beanstalk con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Elastic Beanstalk. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) ## Azioni ### `DescribeApplications` Il seguente esempio di codice mostra come utilizzare. `DescribeApplications` **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/elasticbeanstalk#code-examples). ``` # Class to manage Elastic Beanstalk applications class ElasticBeanstalkManager def initialize(eb_client, logger: Logger.new($stdout)) @eb_client = eb_client @logger = logger end # Lists applications and their environments def list_applications @eb_client.describe_applications.applications.each do |application| log_application_details(application) list_environments(application.application_name) end rescue Aws::ElasticBeanstalk::Errors::ServiceError => e @logger.error("Elastic Beanstalk Service Error: #{e.message}") end private # Logs application details def log_application_details(application) @logger.info("Name: #{application.application_name}") @logger.info("Description: #{application.description}") end # Lists and logs details of environments for a given application def list_environments(application_name) @eb_client.describe_environments(application_name: application_name).environments.each do |env| @logger.info(" Environment: #{env.environment_name}") @logger.info(" URL: #{env.cname}") @logger.info(" Health: #{env.health}") end rescue Aws::ElasticBeanstalk::Errors::ServiceError => e @logger.error("Error listing environments for application #{application_name}: #{e.message}") end end ``` + Per i dettagli sull'API, [DescribeApplications](https://docs.aws.amazon.com/goto/SdkForRubyV3/elastic-beanstalk-2010-12-01/DescribeApplications)consulta *AWS SDK per Ruby API Reference*. ### `ListAvailableSolutionStacks` Il seguente esempio di codice mostra come utilizzare`ListAvailableSolutionStacks`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/elasticbeanstalk#code-examples). ``` # Manages listing of AWS Elastic Beanstalk solution stacks # @param [Aws::ElasticBeanstalk::Client] eb_client # @param [String] filter - Returns subset of results based on match # @param [Logger] logger class StackLister # Initialize with AWS Elastic Beanstalk client def initialize(eb_client, filter, logger: Logger.new($stdout)) @eb_client = eb_client @filter = filter.downcase @logger = logger end # Lists and logs Elastic Beanstalk solution stacks def list_stacks stacks = @eb_client.list_available_solution_stacks.solution_stacks orig_length = stacks.length filtered_length = 0 stacks.each do |stack| if @filter.empty? || stack.downcase.include?(@filter) @logger.info(stack) filtered_length += 1 end end log_summary(filtered_length, orig_length) rescue Aws::Errors::ServiceError => e @logger.error("Error listing solution stacks: #{e.message}") end private # Logs summary of listed stacks def log_summary(filtered_length, orig_length) if @filter.empty? @logger.info("Showed #{orig_length} stack(s)") else @logger.info("Showed #{filtered_length} stack(s) of #{orig_length}") end end end ``` + Per i dettagli sull'API, [ListAvailableSolutionStacks](https://docs.aws.amazon.com/goto/SdkForRubyV3/elastic-beanstalk-2010-12-01/ListAvailableSolutionStacks)consulta *AWS SDK per Ruby API Reference*. ### `UpdateApplication` Il seguente esempio di codice mostra come utilizzare`UpdateApplication`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/elasticbeanstalk#code-examples). ``` # Manages deployment of Rails applications to AWS Elastic Beanstalk class RailsAppDeployer def initialize(eb_client, s3_client, app_name, logger: Logger.new($stdout)) @eb_client = eb_client @s3_client = s3_client @app_name = app_name @logger = logger end # Deploys the latest application version to Elastic Beanstalk def deploy create_storage_location zip_file_name = create_zip_file upload_zip_to_s3(zip_file_name) create_and_deploy_new_application_version(zip_file_name) end private # Creates a new S3 storage location for the application def create_storage_location resp = @eb_client.create_storage_location @logger.info("Created storage location in bucket #{resp.s3_bucket}") rescue Aws::Errors::ServiceError => e @logger.error("Failed to create storage location: #{e.message}") end # Creates a ZIP file of the application using git def create_zip_file zip_file_basename = SecureRandom.urlsafe_base64 zip_file_name = "#{zip_file_basename}.zip" `git archive --format=zip -o #{zip_file_name} HEAD` zip_file_name end # Uploads the ZIP file to the S3 bucket def upload_zip_to_s3(zip_file_name) zip_contents = File.read(zip_file_name) key = "#{@app_name}/#{zip_file_name}" @s3_client.put_object(body: zip_contents, bucket: fetch_bucket_name, key: key) rescue Aws::Errors::ServiceError => e @logger.error("Failed to upload ZIP file to S3: #{e.message}") end # Fetches the S3 bucket name from Elastic Beanstalk application versions def fetch_bucket_name app_versions = @eb_client.describe_application_versions(application_name: @app_name) av = app_versions.application_versions.first av.source_bundle.s3_bucket rescue Aws::Errors::ServiceError => e @logger.error("Failed to fetch bucket name: #{e.message}") raise end # Creates a new application version and deploys it def create_and_deploy_new_application_version(zip_file_name) version_label = File.basename(zip_file_name, '.zip') @eb_client.create_application_version( process: false, application_name: @app_name, version_label: version_label, source_bundle: { s3_bucket: fetch_bucket_name, s3_key: "#{@app_name}/#{zip_file_name}" }, description: "Updated #{Time.now.strftime('%d/%m/%Y')}" ) update_environment(version_label) rescue Aws::Errors::ServiceError => e @logger.error("Failed to create or deploy application version: #{e.message}") end # Updates the environment to the new application version def update_environment(version_label) env_name = fetch_environment_name @eb_client.update_environment( environment_name: env_name, version_label: version_label ) rescue Aws::Errors::ServiceError => e @logger.error("Failed to update environment: #{e.message}") end # Fetches the environment name of the application def fetch_environment_name envs = @eb_client.describe_environments(application_name: @app_name) envs.environments.first.environment_name rescue Aws::Errors::ServiceError => e @logger.error("Failed to fetch environment name: #{e.message}") raise end end ``` + Per i dettagli sull'API, [UpdateApplication](https://docs.aws.amazon.com/goto/SdkForRubyV3/elastic-beanstalk-2010-12-01/UpdateApplication)consulta *AWS SDK per Ruby API Reference*. # EventBridge esempi che utilizzano SDK for Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with EventBridge. *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, dove è possibile trovare le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Scenari](#scenarios) ## Scenari ### Creazione e attivazione di una regola Il seguente esempio di codice mostra come creare e attivare una regola in Amazon EventBridge. **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/eventbridge#code-examples). Chiama le funzioni nell’ordine corretto. ``` require 'aws-sdk-sns' require 'aws-sdk-iam' require 'aws-sdk-cloudwatchevents' require 'aws-sdk-ec2' require 'aws-sdk-cloudwatch' require 'aws-sdk-cloudwatchlogs' require 'securerandom' ``` Verifica se l’argomento Amazon Simple Notification Service (Amazon SNS) esiste tra quelli forniti a questa funzione. ``` # Checks whether the specified Amazon SNS # topic exists among those provided to this function. # This is a helper function that is called by the topic_exists? function. # # @param topics [Array] An array of Aws::SNS::Types::Topic objects. # @param topic_arn [String] The ARN of the topic to find. # @return [Boolean] true if the topic ARN was found; otherwise, false. # @example # sns_client = Aws::SNS::Client.new(region: 'us-east-1') # response = sns_client.list_topics # if topic_found?( # response.topics, # 'arn:aws:sns:us-east-1:111111111111:aws-doc-sdk-examples-topic' # ) # puts 'Topic found.' # end def topic_found?(topics, topic_arn) topics.each do |topic| return true if topic.topic_arn == topic_arn end false end ``` Verifica se l’argomento specificato esiste tra quelli disponibili per il chiamante in Amazon SNS. ``` # Checks whether the specified topic exists among those available to the # caller in Amazon SNS. # # @param sns_client [Aws::SNS::Client] An initialized Amazon SNS client. # @param topic_arn [String] The ARN of the topic to find. # @return [Boolean] true if the topic ARN was found; otherwise, false. # @example # exit 1 unless topic_exists?( # Aws::SNS::Client.new(region: 'us-east-1'), # 'arn:aws:sns:us-east-1:111111111111:aws-doc-sdk-examples-topic' # ) def topic_exists?(sns_client, topic_arn) puts "Searching for topic with ARN '#{topic_arn}'..." response = sns_client.list_topics if response.topics.count.positive? if topic_found?(response.topics, topic_arn) puts 'Topic found.' return true end while response.next_page? response = response.next_page next unless response.topics.count.positive? if topic_found?(response.topics, topic_arn) puts 'Topic found.' return true end end end puts 'Topic not found.' false rescue StandardError => e puts "Topic not found: #{e.message}" false end ``` Crea un argomento in Amazon SNS e quindi registrati con un indirizzo e-mail per ricevere notifiche su quell’argomento. ``` # Creates a topic in Amazon SNS # and then subscribes an email address to receive notifications to that topic. # # @param sns_client [Aws::SNS::Client] An initialized Amazon SNS client. # @param topic_name [String] The name of the topic to create. # @param email_address [String] The email address of the recipient to notify. # @return [String] The ARN of the topic that was created. # @example # puts create_topic( # Aws::SNS::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-topic', # 'mary@example.com' # ) def create_topic(sns_client, topic_name, email_address) puts "Creating the topic named '#{topic_name}'..." topic_response = sns_client.create_topic(name: topic_name) puts "Topic created with ARN '#{topic_response.topic_arn}'." subscription_response = sns_client.subscribe( topic_arn: topic_response.topic_arn, protocol: 'email', endpoint: email_address, return_subscription_arn: true ) puts 'Subscription created with ARN ' \ "'#{subscription_response.subscription_arn}'. Have the owner of the " \ "email address '#{email_address}' check their inbox in a few minutes " \ 'and confirm the subscription to start receiving notification emails.' topic_response.topic_arn rescue StandardError => e puts "Error creating or subscribing to topic: #{e.message}" 'Error' end ``` Verifica se il ruolo specificato AWS Identity and Access Management (IAM) esiste tra quelli forniti a questa funzione. ``` # Checks whether the specified AWS Identity and Access Management (IAM) # role exists among those provided to this function. # This is a helper function that is called by the role_exists? function. # # @param roles [Array] An array of Aws::IAM::Role objects. # @param role_arn [String] The ARN of the role to find. # @return [Boolean] true if the role ARN was found; otherwise, false. # @example # iam_client = Aws::IAM::Client.new(region: 'us-east-1') # response = iam_client.list_roles # if role_found?( # response.roles, # 'arn:aws:iam::111111111111:role/aws-doc-sdk-examples-ec2-state-change' # ) # puts 'Role found.' # end def role_found?(roles, role_arn) roles.each do |role| return true if role.arn == role_arn end false end ``` Verifica se il ruolo specificato esiste tra quelli disponibili per il chiamante in IAM. ``` # Checks whether the specified role exists among those available to the # caller in AWS Identity and Access Management (IAM). # # @param iam_client [Aws::IAM::Client] An initialized IAM client. # @param role_arn [String] The ARN of the role to find. # @return [Boolean] true if the role ARN was found; otherwise, false. # @example # exit 1 unless role_exists?( # Aws::IAM::Client.new(region: 'us-east-1'), # 'arn:aws:iam::111111111111:role/aws-doc-sdk-examples-ec2-state-change' # ) def role_exists?(iam_client, role_arn) puts "Searching for role with ARN '#{role_arn}'..." response = iam_client.list_roles if response.roles.count.positive? if role_found?(response.roles, role_arn) puts 'Role found.' return true end while response.next_page? response = response.next_page next unless response.roles.count.positive? if role_found?(response.roles, role_arn) puts 'Role found.' return true end end end puts 'Role not found.' false rescue StandardError => e puts "Role not found: #{e.message}" false end ``` Crea un ruolo in IAM. ``` # Creates a role in AWS Identity and Access Management (IAM). # This role is used by a rule in Amazon EventBridge to allow # that rule to operate within the caller's account. # This role is designed to be used specifically by this code example. # # @param iam_client [Aws::IAM::Client] An initialized IAM client. # @param role_name [String] The name of the role to create. # @return [String] The ARN of the role that was created. # @example # puts create_role( # Aws::IAM::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-ec2-state-change' # ) def create_role(iam_client, role_name) puts "Creating the role named '#{role_name}'..." response = iam_client.create_role( assume_role_policy_document: { 'Version': '2012-10-17', 'Statement': [ { 'Sid': '', 'Effect': 'Allow', 'Principal': { 'Service': 'events.amazonaws.com' }, 'Action': 'sts:AssumeRole' } ] }.to_json, path: '/', role_name: role_name ) puts "Role created with ARN '#{response.role.arn}'." puts 'Adding access policy to role...' iam_client.put_role_policy( policy_document: { 'Version': '2012-10-17', 'Statement': [ { 'Sid': 'CloudWatchEventsFullAccess', 'Effect': 'Allow', 'Resource': '*', 'Action': 'events:*' }, { 'Sid': 'IAMPassRoleForCloudWatchEvents', 'Effect': 'Allow', 'Resource': 'arn:aws:iam::*:role/AWS_Events_Invoke_Targets', 'Action': 'iam:PassRole' } ] }.to_json, policy_name: 'CloudWatchEventsPolicy', role_name: role_name ) puts 'Access policy added to role.' response.role.arn rescue StandardError => e puts "Error creating role or adding policy to it: #{e.message}" puts 'If the role was created, you must add the access policy ' \ 'to the role yourself, or delete the role yourself and try again.' 'Error' end ``` Verifica se la EventBridge regola specificata esiste tra quelle fornite a questa funzione. ``` # Checks whether the specified Amazon EventBridge rule exists among # those provided to this function. # This is a helper function that is called by the rule_exists? function. # # @param rules [Array] An array of Aws::CloudWatchEvents::Types::Rule objects. # @param rule_arn [String] The name of the rule to find. # @return [Boolean] true if the name of the rule was found; otherwise, false. # @example # cloudwatchevents_client = Aws::CloudWatch::Client.new(region: 'us-east-1') # response = cloudwatchevents_client.list_rules # if rule_found?(response.rules, 'aws-doc-sdk-examples-ec2-state-change') # puts 'Rule found.' # end def rule_found?(rules, rule_name) rules.each do |rule| return true if rule.name == rule_name end false end ``` Verifica se la regola specificata esiste tra quelle disponibili per il chiamante in EventBridge. ``` # Checks whether the specified rule exists among those available to the # caller in Amazon EventBridge. # # @param cloudwatchevents_client [Aws::CloudWatchEvents::Client] # An initialized Amazon EventBridge client. # @param rule_name [String] The name of the rule to find. # @return [Boolean] true if the rule name was found; otherwise, false. # @example # exit 1 unless rule_exists?( # Aws::CloudWatch::Client.new(region: 'us-east-1') # 'aws-doc-sdk-examples-ec2-state-change' # ) def rule_exists?(cloudwatchevents_client, rule_name) puts "Searching for rule with name '#{rule_name}'..." response = cloudwatchevents_client.list_rules if response.rules.count.positive? if rule_found?(response.rules, rule_name) puts 'Rule found.' return true end while response.next_page? response = response.next_page next unless response.rules.count.positive? if rule_found?(response.rules, rule_name) puts 'Rule found.' return true end end end puts 'Rule not found.' false rescue StandardError => e puts "Rule not found: #{e.message}" false end ``` Crea una regola in EventBridge. ``` # Creates a rule in Amazon EventBridge. # This rule is triggered whenever an available instance in # Amazon EC2 changes to the specified state. # This rule is designed to be used specifically by this code example. # # Prerequisites: # # - A role in AWS Identity and Access Management (IAM) that is designed # to be used specifically by this code example. # - A topic in Amazon SNS. # # @param cloudwatchevents_client [Aws::CloudWatchEvents::Client] # An initialized Amazon EventBridge client. # @param rule_name [String] The name of the rule to create. # @param rule_description [String] Some description for this rule. # @param instance_state [String] The state that available instances in # Amazon EC2 must change to, to # trigger this rule. # @param role_arn [String] The Amazon Resource Name (ARN) of the IAM role. # @param target_id [String] Some identifying string for the rule's target. # @param topic_arn [String] The ARN of the Amazon SNS topic. # @return [Boolean] true if the rule was created; otherwise, false. # @example # exit 1 unless rule_created?( # Aws::CloudWatch::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-ec2-state-change', # 'Triggers when any available EC2 instance starts.', # 'running', # 'arn:aws:iam::111111111111:role/aws-doc-sdk-examples-ec2-state-change', # 'sns-topic', # 'arn:aws:sns:us-east-1:111111111111:aws-doc-sdk-examples-topic' # ) def rule_created?( cloudwatchevents_client, rule_name, rule_description, instance_state, role_arn, target_id, topic_arn ) puts "Creating rule with name '#{rule_name}'..." put_rule_response = cloudwatchevents_client.put_rule( name: rule_name, description: rule_description, event_pattern: { 'source': [ 'aws.ec2' ], 'detail-type': [ 'EC2 Instance State-change Notification' ], 'detail': { 'state': [ instance_state ] } }.to_json, state: 'ENABLED', role_arn: role_arn ) puts "Rule created with ARN '#{put_rule_response.rule_arn}'." put_targets_response = cloudwatchevents_client.put_targets( rule: rule_name, targets: [ { id: target_id, arn: topic_arn } ] ) if put_targets_response.key?(:failed_entry_count) && put_targets_response.failed_entry_count.positive? puts 'Error(s) adding target to rule:' put_targets_response.failed_entries.each do |failure| puts failure.error_message end false else true end rescue StandardError => e puts "Error creating rule or adding target to rule: #{e.message}" puts 'If the rule was created, you must add the target ' \ 'to the rule yourself, or delete the rule yourself and try again.' false end ``` Verifica se il gruppo di log specificato esiste tra quelli disponibili per il chiamante in Amazon CloudWatch Logs. ``` # Checks to see whether the specified log group exists among those available # to the caller in Amazon CloudWatch Logs. # # @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client] An initialized # Amazon CloudWatch Logs client. # @param log_group_name [String] The name of the log group to find. # @return [Boolean] true if the log group name was found; otherwise, false. # @example # exit 1 unless log_group_exists?( # Aws::CloudWatchLogs::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-cloudwatch-log' # ) def log_group_exists?(cloudwatchlogs_client, log_group_name) puts "Searching for log group with name '#{log_group_name}'..." response = cloudwatchlogs_client.describe_log_groups( log_group_name_prefix: log_group_name ) if response.log_groups.count.positive? response.log_groups.each do |log_group| if log_group.log_group_name == log_group_name puts 'Log group found.' return true end end end puts 'Log group not found.' false rescue StandardError => e puts "Log group not found: #{e.message}" false end ``` Crea un gruppo di log in CloudWatch Logs. ``` # Creates a log group in Amazon CloudWatch Logs. # # @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client] An initialized # Amazon CloudWatch Logs client. # @param log_group_name [String] The name of the log group to create. # @return [Boolean] true if the log group name was created; otherwise, false. # @example # exit 1 unless log_group_created?( # Aws::CloudWatchLogs::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-cloudwatch-log' # ) def log_group_created?(cloudwatchlogs_client, log_group_name) puts "Attempting to create log group with the name '#{log_group_name}'..." cloudwatchlogs_client.create_log_group(log_group_name: log_group_name) puts 'Log group created.' true rescue StandardError => e puts "Error creating log group: #{e.message}" false end ``` Scrivi un evento in un flusso di log in CloudWatch Logs. ``` # Writes an event to a log stream in Amazon CloudWatch Logs. # # Prerequisites: # # - A log group in Amazon CloudWatch Logs. # - A log stream within the log group. # # @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client] An initialized # Amazon CloudWatch Logs client. # @param log_group_name [String] The name of the log group. # @param log_stream_name [String] The name of the log stream within # the log group. # @param message [String] The message to write to the log stream. # @param sequence_token [String] If available, the sequence token from the # message that was written immediately before this message. This sequence # token is returned by Amazon CloudWatch Logs whenever you programmatically # write a message to the log stream. # @return [String] The sequence token that is returned by # Amazon CloudWatch Logs after successfully writing the message to the # log stream. # @example # puts log_event( # Aws::EC2::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-cloudwatch-log' # '2020/11/19/53f985be-199f-408e-9a45-fc242df41fEX', # "Instance 'i-033c48ef067af3dEX' restarted.", # '495426724868310740095796045676567882148068632824696073EX' # ) def log_event( cloudwatchlogs_client, log_group_name, log_stream_name, message, sequence_token ) puts "Attempting to log '#{message}' to log stream '#{log_stream_name}'..." event = { log_group_name: log_group_name, log_stream_name: log_stream_name, log_events: [ { timestamp: (Time.now.utc.to_f.round(3) * 1_000).to_i, message: message } ] } event[:sequence_token] = sequence_token unless sequence_token.empty? response = cloudwatchlogs_client.put_log_events(event) puts 'Message logged.' response.next_sequence_token rescue StandardError => e puts "Message not logged: #{e.message}" end ``` Riavvia un'istanza Amazon Elastic Compute Cloud (Amazon EC2) e aggiunge informazioni sull'attività correlata a un flusso di log in Logs. CloudWatch ``` # Restarts an Amazon EC2 instance # and adds information about the related activity to a log stream # in Amazon CloudWatch Logs. # # Prerequisites: # # - The Amazon EC2 instance to restart. # - The log group in Amazon CloudWatch Logs to add related activity # information to. # # @param ec2_client [Aws::EC2::Client] An initialized Amazon EC2 client. # @param cloudwatchlogs_client [Aws::CloudWatchLogs::Client] # An initialized Amazon CloudWatch Logs client. # @param instance_id [String] The ID of the instance. # @param log_group_name [String] The name of the log group. # @return [Boolean] true if the instance was restarted and the information # was written to the log stream; otherwise, false. # @example # exit 1 unless instance_restarted?( # Aws::EC2::Client.new(region: 'us-east-1'), # Aws::CloudWatchLogs::Client.new(region: 'us-east-1'), # 'i-033c48ef067af3dEX', # 'aws-doc-sdk-examples-cloudwatch-log' # ) def instance_restarted?( ec2_client, cloudwatchlogs_client, instance_id, log_group_name ) log_stream_name = "#{Time.now.year}/#{Time.now.month}/#{Time.now.day}/" \ "#{SecureRandom.uuid}" cloudwatchlogs_client.create_log_stream( log_group_name: log_group_name, log_stream_name: log_stream_name ) sequence_token = '' puts "Attempting to stop the instance with the ID '#{instance_id}'. " \ 'This might take a few minutes...' ec2_client.stop_instances(instance_ids: [instance_id]) ec2_client.wait_until(:instance_stopped, instance_ids: [instance_id]) puts 'Instance stopped.' sequence_token = log_event( cloudwatchlogs_client, log_group_name, log_stream_name, "Instance '#{instance_id}' stopped.", sequence_token ) puts 'Attempting to restart the instance. This might take a few minutes...' ec2_client.start_instances(instance_ids: [instance_id]) ec2_client.wait_until(:instance_running, instance_ids: [instance_id]) puts 'Instance restarted.' sequence_token = log_event( cloudwatchlogs_client, log_group_name, log_stream_name, "Instance '#{instance_id}' restarted.", sequence_token ) true rescue StandardError => e puts 'Error creating log stream or stopping or restarting the instance: ' \ "#{e.message}" log_event( cloudwatchlogs_client, log_group_name, log_stream_name, "Error stopping or starting instance '#{instance_id}': #{e.message}", sequence_token ) false end ``` Visualizza informazioni sull'attività per una regola in. EventBridge ``` # Displays information about activity for a rule in Amazon EventBridge. # # Prerequisites: # # - A rule in Amazon EventBridge. # # @param cloudwatch_client [Amazon::CloudWatch::Client] An initialized # Amazon CloudWatch client. # @param rule_name [String] The name of the rule. # @param start_time [Time] The timestamp that determines the first datapoint # to return. Can also be expressed as DateTime, Date, Integer, or String. # @param end_time [Time] The timestamp that determines the last datapoint # to return. Can also be expressed as DateTime, Date, Integer, or String. # @param period [Integer] The interval, in seconds, to check for activity. # @example # display_rule_activity( # Aws::CloudWatch::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-ec2-state-change', # Time.now - 600, # Start checking from 10 minutes ago. # Time.now, # Check up until now. # 60 # Check every minute during those 10 minutes. # ) def display_rule_activity( cloudwatch_client, rule_name, start_time, end_time, period ) puts 'Attempting to display rule activity...' response = cloudwatch_client.get_metric_statistics( namespace: 'AWS/Events', metric_name: 'Invocations', dimensions: [ { name: 'RuleName', value: rule_name } ], start_time: start_time, end_time: end_time, period: period, statistics: ['Sum'], unit: 'Count' ) if response.key?(:datapoints) && response.datapoints.count.positive? puts "The event rule '#{rule_name}' was triggered:" response.datapoints.each do |datapoint| puts " #{datapoint.sum} time(s) at #{datapoint.timestamp}" end else puts "The event rule '#{rule_name}' was not triggered during the " \ 'specified time period.' end rescue StandardError => e puts "Error getting information about event rule activity: #{e.message}" end ``` Visualizza le informazioni di registro per tutti i flussi di log in un gruppo di log CloudWatch Logs. ``` # Displays log information for all of the log streams in a log group in # Amazon CloudWatch Logs. # # Prerequisites: # # - A log group in Amazon CloudWatch Logs. # # @param cloudwatchlogs_client [Amazon::CloudWatchLogs::Client] An initialized # Amazon CloudWatch Logs client. # @param log_group_name [String] The name of the log group. # @example # display_log_data( # Amazon::CloudWatchLogs::Client.new(region: 'us-east-1'), # 'aws-doc-sdk-examples-cloudwatch-log' # ) def display_log_data(cloudwatchlogs_client, log_group_name) puts 'Attempting to display log stream data for the log group ' \ "named '#{log_group_name}'..." describe_log_streams_response = cloudwatchlogs_client.describe_log_streams( log_group_name: log_group_name, order_by: 'LastEventTime', descending: true ) if describe_log_streams_response.key?(:log_streams) && describe_log_streams_response.log_streams.count.positive? describe_log_streams_response.log_streams.each do |log_stream| get_log_events_response = cloudwatchlogs_client.get_log_events( log_group_name: log_group_name, log_stream_name: log_stream.log_stream_name ) puts "\nLog messages for '#{log_stream.log_stream_name}':" puts '-' * (log_stream.log_stream_name.length + 20) if get_log_events_response.key?(:events) && get_log_events_response.events.count.positive? get_log_events_response.events.each do |event| puts event.message end else puts 'No log messages for this log stream.' end end end rescue StandardError => e puts 'Error getting information about the log streams or their messages: ' \ "#{e.message}" end ``` Mostra al chiamante un promemoria affinché pulisca manualmente tutte AWS le risorse associate che non gli servono più. ``` # Displays a reminder to the caller to manually clean up any associated # AWS resources that they no longer need. # # @param topic_name [String] The name of the Amazon SNS topic. # @param role_name [String] The name of the IAM role. # @param rule_name [String] The name of the Amazon EventBridge rule. # @param log_group_name [String] The name of the Amazon CloudWatch Logs log group. # @param instance_id [String] The ID of the Amazon EC2 instance. # @example # manual_cleanup_notice( # 'aws-doc-sdk-examples-topic', # 'aws-doc-sdk-examples-cloudwatch-events-rule-role', # 'aws-doc-sdk-examples-ec2-state-change', # 'aws-doc-sdk-examples-cloudwatch-log', # 'i-033c48ef067af3dEX' # ) def manual_cleanup_notice( topic_name, role_name, rule_name, log_group_name, instance_id ) puts '-' * 10 puts 'Some of the following AWS resources might still exist in your account.' puts 'If you no longer want to use this code example, then to clean up' puts 'your AWS account and avoid unexpected costs, you might want to' puts 'manually delete any of the following resources if they exist:' puts "- The Amazon SNS topic named '#{topic_name}'." puts "- The IAM role named '#{role_name}'." puts "- The Amazon EventBridge rule named '#{rule_name}'." puts "- The Amazon CloudWatch Logs log group named '#{log_group_name}'." puts "- The Amazon EC2 instance with the ID '#{instance_id}'." end ``` + Per informazioni dettagliate sull’API, consulta i seguenti argomenti nella *documentazione di riferimento dell’API AWS SDK per Ruby *. + [PutEvents](https://docs.aws.amazon.com/goto/SdkForRubyV3/eventbridge-2015-10-07/PutEvents) + [PutRule](https://docs.aws.amazon.com/goto/SdkForRubyV3/eventbridge-2015-10-07/PutRule) # AWS Glue esempi che utilizzano SDK for Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with AWS Glue. *Nozioni di base*: esempi di codice che mostrano come eseguire le operazioni essenziali all’interno di un servizio. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) + [Nozioni di base](#basics) + [Azioni](#actions) ## Nozioni di base ### Ciao AWS Glue L’esempio di codice seguente mostra come iniziare a utilizzare AWS Glue. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` require 'aws-sdk-glue' require 'logger' # GlueManager is a class responsible for managing AWS Glue operations # such as listing all Glue jobs in the current AWS account. class GlueManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Lists and prints all Glue jobs in the current AWS account. def list_jobs @logger.info('Here are the Glue jobs in your account:') paginator = @client.get_jobs(max_results: 10) jobs = [] paginator.each_page do |page| jobs.concat(page.jobs) end if jobs.empty? @logger.info("You don't have any Glue jobs.") else jobs.each do |job| @logger.info("- #{job.name}") end end end end if $PROGRAM_NAME == __FILE__ glue_client = Aws::Glue::Client.new manager = GlueManager.new(glue_client) manager.list_jobs end ``` + Per i dettagli sull'API, [ListJobs](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/ListJobs)consulta *AWS SDK per Ruby API Reference*. ## Nozioni di base ### Informazioni di base L’esempio di codice seguente mostra come: + Crea un crawler che esegue la scansione di un bucket Amazon S3 pubblico e genera un database di metadati in formato CSV. + Elenca le informazioni su database e tabelle nel tuo AWS Glue Data Catalog. + Crea un processo per estrarre i dati CSV dal bucket S3, trasformare i dati e caricare l’output in formato JSON in un altro bucket S3. + Elenca le informazioni sulle esecuzioni dei processi, visualizza i dati trasformati e pulisci le risorse. Per ulteriori informazioni, consulta [Tutorial: Guida introduttiva a AWS Glue Studio](https://docs.aws.amazon.com/glue/latest/ug/tutorial-create-job.html). **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). Crea una classe che racchiuda le AWS Glue funzioni utilizzate nello scenario. ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves information about a specific crawler. # # @param name [String] The name of the crawler to retrieve information about. # @return [Aws::Glue::Types::Crawler, nil] The crawler object if found, or nil if not found. def get_crawler(name) @glue_client.get_crawler(name: name) rescue Aws::Glue::Errors::EntityNotFoundException @logger.info("Crawler #{name} doesn't exist.") false rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get crawler #{name}: \n#{e.message}") raise end # Creates a new crawler with the specified configuration. # # @param name [String] The name of the crawler. # @param role_arn [String] The ARN of the IAM role to be used by the crawler. # @param db_name [String] The name of the database where the crawler stores its metadata. # @param db_prefix [String] The prefix to be added to the names of tables that the crawler creates. # @param s3_target [String] The S3 path that the crawler will crawl. # @return [void] def create_crawler(name, role_arn, db_name, _db_prefix, s3_target) @glue_client.create_crawler( name: name, role: role_arn, database_name: db_name, targets: { s3_targets: [ { path: s3_target } ] } ) rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not create crawler: \n#{e.message}") raise end # Starts a crawler with the specified name. # # @param name [String] The name of the crawler to start. # @return [void] def start_crawler(name) @glue_client.start_crawler(name: name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not start crawler #{name}: \n#{e.message}") raise end # Deletes a crawler with the specified name. # # @param name [String] The name of the crawler to delete. # @return [void] def delete_crawler(name) @glue_client.delete_crawler(name: name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete crawler #{name}: \n#{e.message}") raise end # Retrieves information about a specific database. # # @param name [String] The name of the database to retrieve information about. # @return [Aws::Glue::Types::Database, nil] The database object if found, or nil if not found. def get_database(name) response = @glue_client.get_database(name: name) response.database rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get database #{name}: \n#{e.message}") raise end # Retrieves a list of tables in the specified database. # # @param db_name [String] The name of the database to retrieve tables from. # @return [Array] def get_tables(db_name) response = @glue_client.get_tables(database_name: db_name) response.table_list rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get tables #{db_name}: \n#{e.message}") raise end # Creates a new job with the specified configuration. # # @param name [String] The name of the job. # @param description [String] The description of the job. # @param role_arn [String] The ARN of the IAM role to be used by the job. # @param script_location [String] The location of the ETL script for the job. # @return [void] def create_job(name, description, role_arn, script_location) @glue_client.create_job( name: name, description: description, role: role_arn, command: { name: 'glueetl', script_location: script_location, python_version: '3' }, glue_version: '3.0' ) rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not create job #{name}: \n#{e.message}") raise end # Starts a job run for the specified job. # # @param name [String] The name of the job to start the run for. # @param input_database [String] The name of the input database for the job. # @param input_table [String] The name of the input table for the job. # @param output_bucket_name [String] The name of the output S3 bucket for the job. # @return [String] The ID of the started job run. def start_job_run(name, input_database, input_table, output_bucket_name) response = @glue_client.start_job_run( job_name: name, arguments: { '--input_database': input_database, '--input_table': input_table, '--output_bucket_url': "s3://#{output_bucket_name}/" } ) response.job_run_id rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not start job run #{name}: \n#{e.message}") raise end # Retrieves a list of jobs in AWS Glue. # # @return [Aws::Glue::Types::ListJobsResponse] def list_jobs @glue_client.list_jobs rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not list jobs: \n#{e.message}") raise end # Retrieves a list of job runs for the specified job. # # @param job_name [String] The name of the job to retrieve job runs for. # @return [Array] def get_job_runs(job_name) response = @glue_client.get_job_runs(job_name: job_name) response.job_runs rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get job runs: \n#{e.message}") end # Retrieves data for a specific job run. # # @param job_name [String] The name of the job run to retrieve data for. # @return [Glue::Types::GetJobRunResponse] def get_job_run(job_name, run_id) @glue_client.get_job_run(job_name: job_name, run_id: run_id) rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get job runs: \n#{e.message}") end # Deletes a job with the specified name. # # @param job_name [String] The name of the job to delete. # @return [void] def delete_job(job_name) @glue_client.delete_job(job_name: job_name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete job: \n#{e.message}") end # Deletes a table with the specified name. # # @param database_name [String] The name of the catalog database in which the table resides. # @param table_name [String] The name of the table to be deleted. # @return [void] def delete_table(database_name, table_name) @glue_client.delete_table(database_name: database_name, name: table_name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete job: \n#{e.message}") end # Removes a specified database from a Data Catalog. # # @param database_name [String] The name of the database to delete. # @return [void] def delete_database(database_name) @glue_client.delete_database(name: database_name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete database: \n#{e.message}") end # Uploads a job script file to an S3 bucket. # # @param file_path [String] The local path of the job script file. # @param bucket_resource [Aws::S3::Bucket] The S3 bucket resource to upload the file to. # @return [void] def upload_job_script(file_path, bucket_resource) File.open(file_path) do |file| bucket_resource.client.put_object({ body: file, bucket: bucket_resource.name, key: file_path }) end rescue Aws::S3::Errors::S3UploadFailedError => e @logger.error("S3 could not upload job script: \n#{e.message}") raise end end ``` Creazione di una classe che esegue lo scenario. ``` class GlueCrawlerJobScenario def initialize(glue_client, glue_service_role, glue_bucket, logger) @glue_client = glue_client @glue_service_role = glue_service_role @glue_bucket = glue_bucket @logger = logger end def run(crawler_name, db_name, db_prefix, data_source, job_script, job_name) wrapper = GlueWrapper.new(@glue_client, @logger) setup_crawler(wrapper, crawler_name, db_name, db_prefix, data_source) query_database(wrapper, crawler_name, db_name) create_and_run_job(wrapper, job_script, job_name, db_name) end private def setup_crawler(wrapper, crawler_name, db_name, db_prefix, data_source) new_step(1, 'Create a crawler') crawler = wrapper.get_crawler(crawler_name) unless crawler puts "Creating crawler #{crawler_name}." wrapper.create_crawler(crawler_name, @glue_service_role.arn, db_name, db_prefix, data_source) puts "Successfully created #{crawler_name}." end wrapper.start_crawler(crawler_name) monitor_crawler(wrapper, crawler_name) end def monitor_crawler(wrapper, crawler_name) new_step(2, 'Monitor Crawler') crawler_state = nil until crawler_state == 'READY' custom_wait(15) crawler = wrapper.get_crawler(crawler_name) crawler_state = crawler[0]['state'] print "Crawler status: #{crawler_state}".yellow end end def query_database(wrapper, _crawler_name, db_name) new_step(3, 'Query the database.') wrapper.get_database(db_name) puts "The crawler created database #{db_name}:" puts "Database contains tables: #{wrapper.get_tables(db_name).map { |t| t['name'] }}" end def create_and_run_job(wrapper, job_script, job_name, db_name) new_step(4, 'Create and run job.') wrapper.upload_job_script(job_script, @glue_bucket) wrapper.create_job(job_name, 'ETL Job', @glue_service_role.arn, "s3://#{@glue_bucket.name}/#{job_script}") run_job(wrapper, job_name, db_name) end def run_job(wrapper, job_name, db_name) new_step(5, 'Run the job.') wrapper.start_job_run(job_name, db_name, wrapper.get_tables(db_name)[0]['name'], @glue_bucket.name) job_run_status = nil until %w[SUCCEEDED FAILED STOPPED].include?(job_run_status) custom_wait(10) job_run = wrapper.get_job_runs(job_name) job_run_status = job_run[0]['job_run_state'] print "Job #{job_name} status: #{job_run_status}".yellow end end end def main banner('../../helpers/banner.txt') puts 'Starting AWS Glue demo...' # Load resource names from YAML. resource_names = YAML.load_file('resource_names.yaml') # Setup services and resources. iam_role = Aws::IAM::Resource.new(region: 'us-east-1').role(resource_names['glue_service_role']) s3_bucket = Aws::S3::Resource.new(region: 'us-east-1').bucket(resource_names['glue_bucket']) # Instantiate scenario and run. scenario = GlueCrawlerJobScenario.new(Aws::Glue::Client.new(region: 'us-east-1'), iam_role, s3_bucket, @logger) random_suffix = rand(10**4) scenario.run("crawler-#{random_suffix}", "db-#{random_suffix}", "prefix-#{random_suffix}-", 's3://data_source', 'job_script.py', "job-#{random_suffix}") puts 'Demo complete.' end ``` Create uno script ETL utilizzato da AWS Glue per estrarre, trasformare e caricare i dati durante l'esecuzione dei job. ``` import sys from awsglue.transforms import * from awsglue.utils import getResolvedOptions from pyspark.context import SparkContext from awsglue.context import GlueContext from awsglue.job import Job """ These custom arguments must be passed as Arguments to the StartJobRun request. --input_database The name of a metadata database that is contained in your AWS Glue Data Catalog and that contains tables that describe the data to be processed. --input_table The name of a table in the database that describes the data to be processed. --output_bucket_url An S3 bucket that receives the transformed output data. """ args = getResolvedOptions( sys.argv, ["JOB_NAME", "input_database", "input_table", "output_bucket_url"] ) sc = SparkContext() glueContext = GlueContext(sc) spark = glueContext.spark_session job = Job(glueContext) job.init(args["JOB_NAME"], args) # Script generated for node S3 Flight Data. S3FlightData_node1 = glueContext.create_dynamic_frame.from_catalog( database=args["input_database"], table_name=args["input_table"], transformation_ctx="S3FlightData_node1", ) # This mapping performs two main functions: # 1. It simplifies the output by removing most of the fields from the data. # 2. It renames some fields. For example, `fl_date` is renamed to `flight_date`. ApplyMapping_node2 = ApplyMapping.apply( frame=S3FlightData_node1, mappings=[ ("year", "long", "year", "long"), ("month", "long", "month", "tinyint"), ("day_of_month", "long", "day", "tinyint"), ("fl_date", "string", "flight_date", "string"), ("carrier", "string", "carrier", "string"), ("fl_num", "long", "flight_num", "long"), ("origin_city_name", "string", "origin_city_name", "string"), ("origin_state_abr", "string", "origin_state_abr", "string"), ("dest_city_name", "string", "dest_city_name", "string"), ("dest_state_abr", "string", "dest_state_abr", "string"), ("dep_time", "long", "departure_time", "long"), ("wheels_off", "long", "wheels_off", "long"), ("wheels_on", "long", "wheels_on", "long"), ("arr_time", "long", "arrival_time", "long"), ("mon", "string", "mon", "string"), ], transformation_ctx="ApplyMapping_node2", ) # Script generated for node Revised Flight Data. RevisedFlightData_node3 = glueContext.write_dynamic_frame.from_options( frame=ApplyMapping_node2, connection_type="s3", format="json", connection_options={"path": args["output_bucket_url"], "partitionKeys": []}, transformation_ctx="RevisedFlightData_node3", ) job.commit() ``` + Per informazioni dettagliate sull’API, consulta i seguenti argomenti nella *documentazione di riferimento dell’API AWS SDK per Ruby *. + [CreateCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/CreateCrawler) + [CreateJob](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/CreateJob) + [DeleteCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteCrawler) + [DeleteDatabase](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteDatabase) + [DeleteJob](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteJob) + [DeleteTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteTable) + [GetCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetCrawler) + [GetDatabase](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetDatabase) + [GetDatabases](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetDatabases) + [GetJob](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetJob) + [GetJobRun](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetJobRun) + [GetJobRuns](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetJobRuns) + [GetTables](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetTables) + [ListJobs](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/ListJobs) + [StartCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/StartCrawler) + [StartJobRun](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/StartJobRun) ## Azioni ### `CreateCrawler` Il seguente esempio di codice mostra come utilizzare`CreateCrawler`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Creates a new crawler with the specified configuration. # # @param name [String] The name of the crawler. # @param role_arn [String] The ARN of the IAM role to be used by the crawler. # @param db_name [String] The name of the database where the crawler stores its metadata. # @param db_prefix [String] The prefix to be added to the names of tables that the crawler creates. # @param s3_target [String] The S3 path that the crawler will crawl. # @return [void] def create_crawler(name, role_arn, db_name, _db_prefix, s3_target) @glue_client.create_crawler( name: name, role: role_arn, database_name: db_name, targets: { s3_targets: [ { path: s3_target } ] } ) rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not create crawler: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [CreateCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/CreateCrawler)consulta *AWS SDK per Ruby API Reference*. ### `CreateJob` Il seguente esempio di codice mostra come utilizzare`CreateJob`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Creates a new job with the specified configuration. # # @param name [String] The name of the job. # @param description [String] The description of the job. # @param role_arn [String] The ARN of the IAM role to be used by the job. # @param script_location [String] The location of the ETL script for the job. # @return [void] def create_job(name, description, role_arn, script_location) @glue_client.create_job( name: name, description: description, role: role_arn, command: { name: 'glueetl', script_location: script_location, python_version: '3' }, glue_version: '3.0' ) rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not create job #{name}: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [CreateJob](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/CreateJob)consulta *AWS SDK per Ruby API Reference*. ### `DeleteCrawler` Il seguente esempio di codice mostra come utilizzare`DeleteCrawler`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Deletes a crawler with the specified name. # # @param name [String] The name of the crawler to delete. # @return [void] def delete_crawler(name) @glue_client.delete_crawler(name: name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete crawler #{name}: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [DeleteCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteCrawler)consulta *AWS SDK per Ruby API Reference*. ### `DeleteDatabase` Il seguente esempio di codice mostra come utilizzare`DeleteDatabase`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Removes a specified database from a Data Catalog. # # @param database_name [String] The name of the database to delete. # @return [void] def delete_database(database_name) @glue_client.delete_database(name: database_name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete database: \n#{e.message}") end ``` + Per i dettagli sull'API, [DeleteDatabase](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteDatabase)consulta *AWS SDK per Ruby API Reference*. ### `DeleteJob` Il seguente esempio di codice mostra come utilizzare`DeleteJob`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Deletes a job with the specified name. # # @param job_name [String] The name of the job to delete. # @return [void] def delete_job(job_name) @glue_client.delete_job(job_name: job_name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete job: \n#{e.message}") end ``` + Per i dettagli sull'API, [DeleteJob](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteJob)consulta *AWS SDK per Ruby API Reference*. ### `DeleteTable` Il seguente esempio di codice mostra come utilizzare`DeleteTable`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Deletes a table with the specified name. # # @param database_name [String] The name of the catalog database in which the table resides. # @param table_name [String] The name of the table to be deleted. # @return [void] def delete_table(database_name, table_name) @glue_client.delete_table(database_name: database_name, name: table_name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not delete job: \n#{e.message}") end ``` + Per i dettagli sull'API, [DeleteTable](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DeleteTable)consulta *AWS SDK per Ruby API Reference*. ### `GetCrawler` Il seguente esempio di codice mostra come utilizzare`GetCrawler`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves information about a specific crawler. # # @param name [String] The name of the crawler to retrieve information about. # @return [Aws::Glue::Types::Crawler, nil] The crawler object if found, or nil if not found. def get_crawler(name) @glue_client.get_crawler(name: name) rescue Aws::Glue::Errors::EntityNotFoundException @logger.info("Crawler #{name} doesn't exist.") false rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get crawler #{name}: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [GetCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetCrawler)consulta *AWS SDK per Ruby API Reference*. ### `GetDatabase` Il seguente esempio di codice mostra come utilizzare`GetDatabase`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves information about a specific database. # # @param name [String] The name of the database to retrieve information about. # @return [Aws::Glue::Types::Database, nil] The database object if found, or nil if not found. def get_database(name) response = @glue_client.get_database(name: name) response.database rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get database #{name}: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [GetDatabase](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetDatabase)consulta *AWS SDK per Ruby API Reference*. ### `GetJobRun` Il seguente esempio di codice mostra come utilizzare`GetJobRun`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves data for a specific job run. # # @param job_name [String] The name of the job run to retrieve data for. # @return [Glue::Types::GetJobRunResponse] def get_job_run(job_name, run_id) @glue_client.get_job_run(job_name: job_name, run_id: run_id) rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get job runs: \n#{e.message}") end ``` + Per i dettagli sull'API, [GetJobRun](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetJobRun)consulta *AWS SDK per Ruby API Reference*. ### `GetJobRuns` Il seguente esempio di codice mostra come utilizzare`GetJobRuns`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves a list of job runs for the specified job. # # @param job_name [String] The name of the job to retrieve job runs for. # @return [Array] def get_job_runs(job_name) response = @glue_client.get_job_runs(job_name: job_name) response.job_runs rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get job runs: \n#{e.message}") end ``` + Per i dettagli sull'API, [GetJobRuns](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetJobRuns)consulta *AWS SDK per Ruby API Reference*. ### `GetTables` Il seguente esempio di codice mostra come utilizzare`GetTables`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves a list of tables in the specified database. # # @param db_name [String] The name of the database to retrieve tables from. # @return [Array] def get_tables(db_name) response = @glue_client.get_tables(database_name: db_name) response.table_list rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get tables #{db_name}: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [GetTables](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/GetTables)consulta *AWS SDK per Ruby API Reference*. ### `ListJobs` Il seguente esempio di codice mostra come utilizzare`ListJobs`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves a list of jobs in AWS Glue. # # @return [Aws::Glue::Types::ListJobsResponse] def list_jobs @glue_client.list_jobs rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not list jobs: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [ListJobs](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/ListJobs)consulta *AWS SDK per Ruby API Reference*. ### `StartCrawler` Il seguente esempio di codice mostra come utilizzare`StartCrawler`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Starts a crawler with the specified name. # # @param name [String] The name of the crawler to start. # @return [void] def start_crawler(name) @glue_client.start_crawler(name: name) rescue Aws::Glue::Errors::ServiceError => e @logger.error("Glue could not start crawler #{name}: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [StartCrawler](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/StartCrawler)consulta *AWS SDK per Ruby API Reference*. ### `StartJobRun` Il seguente esempio di codice mostra come utilizzare`StartJobRun`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/glue#code-examples). ``` # The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Starts a job run for the specified job. # # @param name [String] The name of the job to start the run for. # @param input_database [String] The name of the input database for the job. # @param input_table [String] The name of the input table for the job. # @param output_bucket_name [String] The name of the output S3 bucket for the job. # @return [String] The ID of the started job run. def start_job_run(name, input_database, input_table, output_bucket_name) response = @glue_client.start_job_run( job_name: name, arguments: { '--input_database': input_database, '--input_table': input_table, '--output_bucket_url': "s3://#{output_bucket_name}/" } ) response.job_run_id rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not start job run #{name}: \n#{e.message}") raise end ``` + Per i dettagli sull'API, [StartJobRun](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/StartJobRun)consulta *AWS SDK per Ruby API Reference*. # Esempi per IAM con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with IAM. *Nozioni di base*: esempi di codice che mostrano come eseguire le operazioni essenziali all’interno di un servizio. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) + [Nozioni di base](#basics) + [Azioni](#actions) ## Nozioni di base ### Hello IAM Il seguente esempio di codice mostra come iniziare a utilizzare IAM. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` require 'aws-sdk-iam' require 'logger' # IAMManager is a class responsible for managing IAM operations # such as listing all IAM policies in the current AWS account. class IAMManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Lists and prints all IAM policies in the current AWS account. def list_policies @logger.info('Here are the IAM policies in your account:') paginator = @client.list_policies policies = [] paginator.each_page do |page| policies.concat(page.policies) end if policies.empty? @logger.info("You don't have any IAM policies.") else policies.each do |policy| @logger.info("- #{policy.policy_name}") end end end end if $PROGRAM_NAME == __FILE__ iam_client = Aws::IAM::Client.new manager = IAMManager.new(iam_client) manager.list_policies end ``` + Per i dettagli sull'API, [ListPolicies](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListPolicies)consulta *AWS SDK per Ruby API Reference*. ## Nozioni di base ### Informazioni di base L’esempio di codice seguente mostra come creare un utente e assumere un ruolo. **avvertimento** Per evitare rischi per la sicurezza, non utilizzare gli utenti IAM per l’autenticazione quando sviluppi software creato ad hoc o lavori con dati reali. Utilizza invece la federazione con un provider di identità come [AWS IAM Identity Center](https://docs.aws.amazon.com/singlesignon/latest/userguide/what-is.html). + Crea un utente che non disponga di autorizzazioni. + Crea un ruolo che conceda l’autorizzazione per elencare i bucket Amazon S3 per l’account. + Aggiungi una policy per consentire all’utente di assumere il ruolo. + Assumi il ruolo ed elenca i bucket S3 utilizzando le credenziali temporanee, quindi ripulisci le risorse. **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Crea un utente IAM che conceda l’autorizzazione per elencare i bucket Amazon S3. L’utente dispone dei diritti soltanto per assumere il ruolo. Dopo aver assunto il ruolo, utilizza le credenziali temporanee per elencare i bucket per l’account. ``` # Wraps the scenario actions. class ScenarioCreateUserAssumeRole attr_reader :iam_client # @param [Aws::IAM::Client] iam_client: The AWS IAM client. def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger end # Waits for the specified number of seconds. # # @param duration [Integer] The number of seconds to wait. def wait(duration) puts('Give AWS time to propagate resources...') sleep(duration) end # Creates a user. # # @param user_name [String] The name to give the user. # @return [Aws::IAM::User] The newly created user. def create_user(user_name) user = @iam_client.create_user(user_name: user_name).user @logger.info("Created demo user named #{user.user_name}.") rescue Aws::Errors::ServiceError => e @logger.info('Tried and failed to create demo user.') @logger.info("\t#{e.code}: #{e.message}") @logger.info("\nCan't continue the demo without a user!") raise else user end # Creates an access key for a user. # # @param user [Aws::IAM::User] The user that owns the key. # @return [Aws::IAM::AccessKeyPair] The newly created access key. def create_access_key_pair(user) user_key = @iam_client.create_access_key(user_name: user.user_name).access_key @logger.info("Created accesskey pair for user #{user.user_name}.") rescue Aws::Errors::ServiceError => e @logger.info("Couldn't create access keys for user #{user.user_name}.") @logger.info("\t#{e.code}: #{e.message}") raise else user_key end # Creates a role that can be assumed by a user. # # @param role_name [String] The name to give the role. # @param user [Aws::IAM::User] The user who is granted permission to assume the role. # @return [Aws::IAM::Role] The newly created role. def create_role(role_name, user) trust_policy = { Version: '2012-10-17', Statement: [{ Effect: 'Allow', Principal: { 'AWS': user.arn }, Action: 'sts:AssumeRole' }] }.to_json role = @iam_client.create_role( role_name: role_name, assume_role_policy_document: trust_policy ).role @logger.info("Created role #{role.role_name}.") rescue Aws::Errors::ServiceError => e @logger.info("Couldn't create a role for the demo. Here's why: ") @logger.info("\t#{e.code}: #{e.message}") raise else role end # Creates a policy that grants permission to list S3 buckets in the account, and # then attaches the policy to a role. # # @param policy_name [String] The name to give the policy. # @param role [Aws::IAM::Role] The role that the policy is attached to. # @return [Aws::IAM::Policy] The newly created policy. def create_and_attach_role_policy(policy_name, role) policy_document = { Version: '2012-10-17', Statement: [{ Effect: 'Allow', Action: 's3:ListAllMyBuckets', Resource: 'arn:aws:s3:::*' }] }.to_json policy = @iam_client.create_policy( policy_name: policy_name, policy_document: policy_document ).policy @iam_client.attach_role_policy( role_name: role.role_name, policy_arn: policy.arn ) @logger.info("Created policy #{policy.policy_name} and attached it to role #{role.role_name}.") rescue Aws::Errors::ServiceError => e @logger.info("Couldn't create a policy and attach it to role #{role.role_name}. Here's why: ") @logger.info("\t#{e.code}: #{e.message}") raise end # Creates an inline policy for a user that lets the user assume a role. # # @param policy_name [String] The name to give the policy. # @param user [Aws::IAM::User] The user that owns the policy. # @param role [Aws::IAM::Role] The role that can be assumed. # @return [Aws::IAM::UserPolicy] The newly created policy. def create_user_policy(policy_name, user, role) policy_document = { Version: '2012-10-17', Statement: [{ Effect: 'Allow', Action: 'sts:AssumeRole', Resource: role.arn }] }.to_json @iam_client.put_user_policy( user_name: user.user_name, policy_name: policy_name, policy_document: policy_document ) puts("Created an inline policy for #{user.user_name} that lets the user assume role #{role.role_name}.") rescue Aws::Errors::ServiceError => e @logger.info("Couldn't create an inline policy for user #{user.user_name}. Here's why: ") @logger.info("\t#{e.code}: #{e.message}") raise end # Creates an Amazon S3 resource with specified credentials. This is separated into a # factory function so that it can be mocked for unit testing. # # @param credentials [Aws::Credentials] The credentials used by the Amazon S3 resource. def create_s3_resource(credentials) Aws::S3::Resource.new(client: Aws::S3::Client.new(credentials: credentials)) end # Lists the S3 buckets for the account, using the specified Amazon S3 resource. # Because the resource uses credentials with limited access, it may not be able to # list the S3 buckets. # # @param s3_resource [Aws::S3::Resource] An Amazon S3 resource. def list_buckets(s3_resource) count = 10 s3_resource.buckets.each do |bucket| @logger.info "\t#{bucket.name}" count -= 1 break if count.zero? end rescue Aws::Errors::ServiceError => e if e.code == 'AccessDenied' puts('Attempt to list buckets with no permissions: AccessDenied.') else @logger.info("Couldn't list buckets for the account. Here's why: ") @logger.info("\t#{e.code}: #{e.message}") raise end end # Creates an AWS Security Token Service (AWS STS) client with specified credentials. # This is separated into a factory function so that it can be mocked for unit testing. # # @param key_id [String] The ID of the access key used by the STS client. # @param key_secret [String] The secret part of the access key used by the STS client. def create_sts_client(key_id, key_secret) Aws::STS::Client.new(access_key_id: key_id, secret_access_key: key_secret) end # Gets temporary credentials that can be used to assume a role. # # @param role_arn [String] The ARN of the role that is assumed when these credentials # are used. # @param sts_client [AWS::STS::Client] An AWS STS client. # @return [Aws::AssumeRoleCredentials] The credentials that can be used to assume the role. def assume_role(role_arn, sts_client) credentials = Aws::AssumeRoleCredentials.new( client: sts_client, role_arn: role_arn, role_session_name: 'create-use-assume-role-scenario' ) @logger.info("Assumed role '#{role_arn}', got temporary credentials.") credentials end # Deletes a role. If the role has policies attached, they are detached and # deleted before the role is deleted. # # @param role_name [String] The name of the role to delete. def delete_role(role_name) @iam_client.list_attached_role_policies(role_name: role_name).attached_policies.each do |policy| @iam_client.detach_role_policy(role_name: role_name, policy_arn: policy.policy_arn) @iam_client.delete_policy(policy_arn: policy.policy_arn) @logger.info("Detached and deleted policy #{policy.policy_name}.") end @iam_client.delete_role({ role_name: role_name }) @logger.info("Role deleted: #{role_name}.") rescue Aws::Errors::ServiceError => e @logger.info("Couldn't detach policies and delete role #{role.name}. Here's why:") @logger.info("\t#{e.code}: #{e.message}") raise end # Deletes a user. If the user has inline policies or access keys, they are deleted # before the user is deleted. # # @param user [Aws::IAM::User] The user to delete. def delete_user(user_name) user = @iam_client.list_access_keys(user_name: user_name).access_key_metadata user.each do |key| @iam_client.delete_access_key({ access_key_id: key.access_key_id, user_name: user_name }) @logger.info("Deleted access key #{key.access_key_id} for user '#{user_name}'.") end @iam_client.delete_user(user_name: user_name) @logger.info("Deleted user '#{user_name}'.") rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting user '#{user_name}': #{e.message}") end end # Runs the IAM create a user and assume a role scenario. def run_scenario(scenario) puts('-' * 88) puts('Welcome to the IAM create a user and assume a role demo!') puts('-' * 88) user = scenario.create_user("doc-example-user-#{Random.uuid}") user_key = scenario.create_access_key_pair(user) scenario.wait(10) role = scenario.create_role("doc-example-role-#{Random.uuid}", user) scenario.create_and_attach_role_policy("doc-example-role-policy-#{Random.uuid}", role) scenario.create_user_policy("doc-example-user-policy-#{Random.uuid}", user, role) scenario.wait(10) puts('Try to list buckets with credentials for a user who has no permissions.') puts('Expect AccessDenied from this call.') scenario.list_buckets( scenario.create_s3_resource(Aws::Credentials.new(user_key.access_key_id, user_key.secret_access_key)) ) puts('Now, assume the role that grants permission.') temp_credentials = scenario.assume_role( role.arn, scenario.create_sts_client(user_key.access_key_id, user_key.secret_access_key) ) puts('Here are your buckets:') scenario.list_buckets(scenario.create_s3_resource(temp_credentials)) puts("Deleting role '#{role.role_name}' and attached policies.") scenario.delete_role(role.role_name) puts("Deleting user '#{user.user_name}', policies, and keys.") scenario.delete_user(user.user_name) puts('Thanks for watching!') puts('-' * 88) rescue Aws::Errors::ServiceError => e puts('Something went wrong with the demo.') puts("\t#{e.code}: #{e.message}") end run_scenario(ScenarioCreateUserAssumeRole.new(Aws::IAM::Client.new)) if $PROGRAM_NAME == __FILE__ ``` + Per informazioni dettagliate sull’API, consulta i seguenti argomenti nella *documentazione di riferimento dell’API AWS SDK per Ruby *. + [AttachRolePolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/AttachRolePolicy) + [CreateAccessKey](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateAccessKey) + [CreatePolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreatePolicy) + [CreateRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateRole) + [CreateUser](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateUser) + [DeleteAccessKey](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteAccessKey) + [DeletePolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeletePolicy) + [DeleteRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteRole) + [DeleteUser](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteUser) + [DeleteUserPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteUserPolicy) + [DetachRolePolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DetachRolePolicy) + [PutUserPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/PutUserPolicy) ## Azioni ### `AttachRolePolicy` Il seguente esempio di codice mostra come usare`AttachRolePolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, collega e scollega le policy relative ai ruoli. ``` # Manages policies in AWS Identity and Access Management (IAM) class RolePolicyManager # Initialize with an AWS IAM client # # @param iam_client [Aws::IAM::Client] An initialized IAM client def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'PolicyManager' end # Creates a policy # # @param policy_name [String] The name of the policy # @param policy_document [Hash] The policy document # @return [String] The policy ARN if successful, otherwise nil def create_policy(policy_name, policy_document) response = @iam_client.create_policy( policy_name: policy_name, policy_document: policy_document.to_json ) response.policy.arn rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating policy: #{e.message}") nil end # Fetches an IAM policy by its ARN # @param policy_arn [String] the ARN of the IAM policy to retrieve # @return [Aws::IAM::Types::GetPolicyResponse] the policy object if found def get_policy(policy_arn) response = @iam_client.get_policy(policy_arn: policy_arn) policy = response.policy @logger.info("Got policy '#{policy.policy_name}'. Its ID is: #{policy.policy_id}.") policy rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Couldn't get policy '#{policy_arn}'. The policy does not exist.") raise rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't get policy '#{policy_arn}'. Here's why: #{e.code}: #{e.message}") raise end # Attaches a policy to a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def attach_policy_to_role(role_name, policy_arn) @iam_client.attach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error attaching policy to role: #{e.message}") false end # Lists policy ARNs attached to a role # # @param role_name [String] The name of the role # @return [Array] List of policy ARNs def list_attached_policy_arns(role_name) response = @iam_client.list_attached_role_policies(role_name: role_name) response.attached_policies.map(&:policy_arn) rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing policies attached to role: #{e.message}") [] end # Detaches a policy from a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def detach_policy_from_role(role_name, policy_arn) @iam_client.detach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error detaching policy from role: #{e.message}") false end end ``` + Per i dettagli sull'API, [AttachRolePolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/AttachRolePolicy)consulta *AWS SDK per Ruby API Reference*. ### `AttachUserPolicy` Il seguente esempio di codice mostra come utilizzare`AttachUserPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Attaches a policy to a user # # @param user_name [String] The name of the user # @param policy_arn [String] The Amazon Resource Name (ARN) of the policy # @return [Boolean] true if successful, false otherwise def attach_policy_to_user(user_name, policy_arn) @iam_client.attach_user_policy( user_name: user_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error attaching policy to user: #{e.message}") false end ``` + Per i dettagli sull'API, [AttachUserPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/AttachUserPolicy)consulta *AWS SDK per Ruby API Reference*. ### `CreateAccessKey` Il seguente esempio di codice mostra come utilizzare`CreateAccessKey`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, disattiva ed elimina le chiavi di accesso. ``` # Manages access keys for IAM users class AccessKeyManager def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'AccessKeyManager' end # Lists access keys for a user # # @param user_name [String] The name of the user. def list_access_keys(user_name) response = @iam_client.list_access_keys(user_name: user_name) if response.access_key_metadata.empty? @logger.info("No access keys found for user '#{user_name}'.") else response.access_key_metadata.map(&:access_key_id) end rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Error listing access keys: cannot find user '#{user_name}'.") [] rescue StandardError => e @logger.error("Error listing access keys: #{e.message}") [] end # Creates an access key for a user # # @param user_name [String] The name of the user. # @return [Boolean] def create_access_key(user_name) response = @iam_client.create_access_key(user_name: user_name) access_key = response.access_key @logger.info("Access key created for user '#{user_name}': #{access_key.access_key_id}") access_key rescue Aws::IAM::Errors::LimitExceeded @logger.error('Error creating access key: limit exceeded. Cannot create more.') nil rescue StandardError => e @logger.error("Error creating access key: #{e.message}") nil end # Deactivates an access key # # @param user_name [String] The name of the user. # @param access_key_id [String] The ID for the access key. # @return [Boolean] def deactivate_access_key(user_name, access_key_id) @iam_client.update_access_key( user_name: user_name, access_key_id: access_key_id, status: 'Inactive' ) true rescue StandardError => e @logger.error("Error deactivating access key: #{e.message}") false end # Deletes an access key # # @param user_name [String] The name of the user. # @param access_key_id [String] The ID for the access key. # @return [Boolean] def delete_access_key(user_name, access_key_id) @iam_client.delete_access_key( user_name: user_name, access_key_id: access_key_id ) true rescue StandardError => e @logger.error("Error deleting access key: #{e.message}") false end end ``` + Per i dettagli sull'API, [CreateAccessKey](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateAccessKey)consulta *AWS SDK per Ruby API Reference*. ### `CreateAccountAlias` Il seguente esempio di codice mostra come utilizzare`CreateAccountAlias`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Elenca, crea ed elimina gli alias degli account. ``` class IAMAliasManager # Initializes the IAM client and logger # # @param iam_client [Aws::IAM::Client] An initialized IAM client. def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger end # Lists available AWS account aliases. def list_aliases response = @iam_client.list_account_aliases if response.account_aliases.count.positive? @logger.info('Account aliases are:') response.account_aliases.each { |account_alias| @logger.info(" #{account_alias}") } else @logger.info('No account aliases found.') end rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing account aliases: #{e.message}") end # Creates an AWS account alias. # # @param account_alias [String] The name of the account alias to create. # @return [Boolean] true if the account alias was created; otherwise, false. def create_account_alias(account_alias) @iam_client.create_account_alias(account_alias: account_alias) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating account alias: #{e.message}") false end # Deletes an AWS account alias. # # @param account_alias [String] The name of the account alias to delete. # @return [Boolean] true if the account alias was deleted; otherwise, false. def delete_account_alias(account_alias) @iam_client.delete_account_alias(account_alias: account_alias) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting account alias: #{e.message}") false end end ``` + Per i dettagli sull'API, [CreateAccountAlias](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateAccountAlias)consulta *AWS SDK per Ruby API Reference*. ### `CreatePolicy` Il seguente esempio di codice mostra come utilizzare`CreatePolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, collega e scollega le policy relative ai ruoli. ``` # Manages policies in AWS Identity and Access Management (IAM) class RolePolicyManager # Initialize with an AWS IAM client # # @param iam_client [Aws::IAM::Client] An initialized IAM client def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'PolicyManager' end # Creates a policy # # @param policy_name [String] The name of the policy # @param policy_document [Hash] The policy document # @return [String] The policy ARN if successful, otherwise nil def create_policy(policy_name, policy_document) response = @iam_client.create_policy( policy_name: policy_name, policy_document: policy_document.to_json ) response.policy.arn rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating policy: #{e.message}") nil end # Fetches an IAM policy by its ARN # @param policy_arn [String] the ARN of the IAM policy to retrieve # @return [Aws::IAM::Types::GetPolicyResponse] the policy object if found def get_policy(policy_arn) response = @iam_client.get_policy(policy_arn: policy_arn) policy = response.policy @logger.info("Got policy '#{policy.policy_name}'. Its ID is: #{policy.policy_id}.") policy rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Couldn't get policy '#{policy_arn}'. The policy does not exist.") raise rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't get policy '#{policy_arn}'. Here's why: #{e.code}: #{e.message}") raise end # Attaches a policy to a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def attach_policy_to_role(role_name, policy_arn) @iam_client.attach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error attaching policy to role: #{e.message}") false end # Lists policy ARNs attached to a role # # @param role_name [String] The name of the role # @return [Array] List of policy ARNs def list_attached_policy_arns(role_name) response = @iam_client.list_attached_role_policies(role_name: role_name) response.attached_policies.map(&:policy_arn) rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing policies attached to role: #{e.message}") [] end # Detaches a policy from a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def detach_policy_from_role(role_name, policy_arn) @iam_client.detach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error detaching policy from role: #{e.message}") false end end ``` + Per i dettagli sull'API, [CreatePolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreatePolicy)consulta *AWS SDK per Ruby API Reference*. ### `CreateRole` Il seguente esempio di codice mostra come utilizzare`CreateRole`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Creates a role and attaches policies to it. # # @param role_name [String] The name of the role. # @param assume_role_policy_document [Hash] The trust relationship policy document. # @param policy_arns [Array] The ARNs of the policies to attach. # @return [String, nil] The ARN of the new role if successful, or nil if an error occurred. def create_role(role_name, assume_role_policy_document, policy_arns) response = @iam_client.create_role( role_name: role_name, assume_role_policy_document: assume_role_policy_document.to_json ) role_arn = response.role.arn policy_arns.each do |policy_arn| @iam_client.attach_role_policy( role_name: role_name, policy_arn: policy_arn ) end role_arn rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating role: #{e.message}") nil end ``` + Per i dettagli sull'API, [CreateRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateRole)consulta *AWS SDK per Ruby API Reference*. ### `CreateServiceLinkedRole` Il seguente esempio di codice mostra come utilizzare`CreateServiceLinkedRole`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Creates a service-linked role # # @param service_name [String] The service name to create the role for. # @param description [String] The description of the service-linked role. # @param suffix [String] Suffix for customizing role name. # @return [String] The name of the created role def create_service_linked_role(service_name, description, suffix) response = @iam_client.create_service_linked_role( aws_service_name: service_name, description: description, custom_suffix: suffix ) role_name = response.role.role_name @logger.info("Created service-linked role #{role_name}.") role_name rescue Aws::Errors::ServiceError => e @logger.error("Couldn't create service-linked role for #{service_name}. Here's why:") @logger.error("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [CreateServiceLinkedRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateServiceLinkedRole)consulta *AWS SDK per Ruby API Reference*. ### `CreateUser` Il seguente esempio di codice mostra come utilizzare`CreateUser`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Creates a user and their login profile # # @param user_name [String] The name of the user # @param initial_password [String] The initial password for the user # @return [String, nil] The ID of the user if created, or nil if an error occurred def create_user(user_name, initial_password) response = @iam_client.create_user(user_name: user_name) @iam_client.wait_until(:user_exists, user_name: user_name) @iam_client.create_login_profile( user_name: user_name, password: initial_password, password_reset_required: true ) @logger.info("User '#{user_name}' created successfully.") response.user.user_id rescue Aws::IAM::Errors::EntityAlreadyExists @logger.error("Error creating user '#{user_name}': user already exists.") nil rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating user '#{user_name}': #{e.message}") nil end ``` + Per i dettagli sull'API, [CreateUser](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/CreateUser)consulta *AWS SDK per Ruby API Reference*. ### `DeleteAccessKey` Il seguente esempio di codice mostra come utilizzare`DeleteAccessKey`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, disattiva ed elimina le chiavi di accesso. ``` # Manages access keys for IAM users class AccessKeyManager def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'AccessKeyManager' end # Lists access keys for a user # # @param user_name [String] The name of the user. def list_access_keys(user_name) response = @iam_client.list_access_keys(user_name: user_name) if response.access_key_metadata.empty? @logger.info("No access keys found for user '#{user_name}'.") else response.access_key_metadata.map(&:access_key_id) end rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Error listing access keys: cannot find user '#{user_name}'.") [] rescue StandardError => e @logger.error("Error listing access keys: #{e.message}") [] end # Creates an access key for a user # # @param user_name [String] The name of the user. # @return [Boolean] def create_access_key(user_name) response = @iam_client.create_access_key(user_name: user_name) access_key = response.access_key @logger.info("Access key created for user '#{user_name}': #{access_key.access_key_id}") access_key rescue Aws::IAM::Errors::LimitExceeded @logger.error('Error creating access key: limit exceeded. Cannot create more.') nil rescue StandardError => e @logger.error("Error creating access key: #{e.message}") nil end # Deactivates an access key # # @param user_name [String] The name of the user. # @param access_key_id [String] The ID for the access key. # @return [Boolean] def deactivate_access_key(user_name, access_key_id) @iam_client.update_access_key( user_name: user_name, access_key_id: access_key_id, status: 'Inactive' ) true rescue StandardError => e @logger.error("Error deactivating access key: #{e.message}") false end # Deletes an access key # # @param user_name [String] The name of the user. # @param access_key_id [String] The ID for the access key. # @return [Boolean] def delete_access_key(user_name, access_key_id) @iam_client.delete_access_key( user_name: user_name, access_key_id: access_key_id ) true rescue StandardError => e @logger.error("Error deleting access key: #{e.message}") false end end ``` + Per i dettagli sull'API, [DeleteAccessKey](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteAccessKey)consulta *AWS SDK per Ruby API Reference*. ### `DeleteAccountAlias` Il seguente esempio di codice mostra come utilizzare`DeleteAccountAlias`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Elenca, crea ed elimina gli alias degli account. ``` class IAMAliasManager # Initializes the IAM client and logger # # @param iam_client [Aws::IAM::Client] An initialized IAM client. def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger end # Lists available AWS account aliases. def list_aliases response = @iam_client.list_account_aliases if response.account_aliases.count.positive? @logger.info('Account aliases are:') response.account_aliases.each { |account_alias| @logger.info(" #{account_alias}") } else @logger.info('No account aliases found.') end rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing account aliases: #{e.message}") end # Creates an AWS account alias. # # @param account_alias [String] The name of the account alias to create. # @return [Boolean] true if the account alias was created; otherwise, false. def create_account_alias(account_alias) @iam_client.create_account_alias(account_alias: account_alias) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating account alias: #{e.message}") false end # Deletes an AWS account alias. # # @param account_alias [String] The name of the account alias to delete. # @return [Boolean] true if the account alias was deleted; otherwise, false. def delete_account_alias(account_alias) @iam_client.delete_account_alias(account_alias: account_alias) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting account alias: #{e.message}") false end end ``` + Per i dettagli sull'API, [DeleteAccountAlias](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteAccountAlias)consulta *AWS SDK per Ruby API Reference*. ### `DeleteRole` Il seguente esempio di codice mostra come utilizzare`DeleteRole`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Deletes a role and its attached policies. # # @param role_name [String] The name of the role to delete. def delete_role(role_name) # Detach and delete attached policies @iam_client.list_attached_role_policies(role_name: role_name).each do |response| response.attached_policies.each do |policy| @iam_client.detach_role_policy({ role_name: role_name, policy_arn: policy.policy_arn }) # Check if the policy is a customer managed policy (not AWS managed) unless policy.policy_arn.include?('aws:policy/') @iam_client.delete_policy({ policy_arn: policy.policy_arn }) @logger.info("Deleted customer managed policy #{policy.policy_name}.") end end end # Delete the role @iam_client.delete_role({ role_name: role_name }) @logger.info("Deleted role #{role_name}.") rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't detach policies and delete role #{role_name}. Here's why:") @logger.error("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [DeleteRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteRole)consulta *AWS SDK per Ruby API Reference*. ### `DeleteServerCertificate` Il seguente esempio di codice mostra come utilizzare`DeleteServerCertificate`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Elenca, aggiorna ed elimina i certificati server. ``` class ServerCertificateManager def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'ServerCertificateManager' end # Creates a new server certificate. # @param name [String] the name of the server certificate # @param certificate_body [String] the contents of the certificate # @param private_key [String] the private key contents # @return [Boolean] returns true if the certificate was successfully created def create_server_certificate(name, certificate_body, private_key) @iam_client.upload_server_certificate({ server_certificate_name: name, certificate_body: certificate_body, private_key: private_key }) true rescue Aws::IAM::Errors::ServiceError => e puts "Failed to create server certificate: #{e.message}" false end # Lists available server certificate names. def list_server_certificate_names response = @iam_client.list_server_certificates if response.server_certificate_metadata_list.empty? @logger.info('No server certificates found.') return end response.server_certificate_metadata_list.each do |certificate_metadata| @logger.info("Certificate Name: #{certificate_metadata.server_certificate_name}") end rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing server certificates: #{e.message}") end # Updates the name of a server certificate. def update_server_certificate_name(current_name, new_name) @iam_client.update_server_certificate( server_certificate_name: current_name, new_server_certificate_name: new_name ) @logger.info("Server certificate name updated from '#{current_name}' to '#{new_name}'.") true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error updating server certificate name: #{e.message}") false end # Deletes a server certificate. def delete_server_certificate(name) @iam_client.delete_server_certificate(server_certificate_name: name) @logger.info("Server certificate '#{name}' deleted.") true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting server certificate: #{e.message}") false end end ``` + Per i dettagli sull'API, [DeleteServerCertificate](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteServerCertificate)consulta *AWS SDK per Ruby API Reference*. ### `DeleteServiceLinkedRole` Il seguente esempio di codice mostra come utilizzare`DeleteServiceLinkedRole`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Deletes a service-linked role. # # @param role_name [String] The name of the role to delete. def delete_service_linked_role(role_name) response = @iam_client.delete_service_linked_role(role_name: role_name) task_id = response.deletion_task_id check_deletion_status(role_name, task_id) rescue Aws::Errors::ServiceError => e handle_deletion_error(e, role_name) end private # Checks the deletion status of a service-linked role # # @param role_name [String] The name of the role being deleted # @param task_id [String] The task ID for the deletion process def check_deletion_status(role_name, task_id) loop do response = @iam_client.get_service_linked_role_deletion_status( deletion_task_id: task_id ) status = response.status @logger.info("Deletion of #{role_name} #{status}.") break if %w[SUCCEEDED FAILED].include?(status) sleep(3) end end # Handles deletion error # # @param e [Aws::Errors::ServiceError] The error encountered during deletion # @param role_name [String] The name of the role attempted to delete def handle_deletion_error(e, role_name) return if e.code == 'NoSuchEntity' @logger.error("Couldn't delete #{role_name}. Here's why:") @logger.error("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [DeleteServiceLinkedRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteServiceLinkedRole)consulta *AWS SDK per Ruby API Reference*. ### `DeleteUser` Il seguente esempio di codice mostra come utilizzare`DeleteUser`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Deletes a user and their associated resources # # @param user_name [String] The name of the user to delete def delete_user(user_name) user = @iam_client.list_access_keys(user_name: user_name).access_key_metadata user.each do |key| @iam_client.delete_access_key({ access_key_id: key.access_key_id, user_name: user_name }) @logger.info("Deleted access key #{key.access_key_id} for user '#{user_name}'.") end @iam_client.delete_user(user_name: user_name) @logger.info("Deleted user '#{user_name}'.") rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting user '#{user_name}': #{e.message}") end ``` + Per i dettagli sull'API, [DeleteUser](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteUser)consulta *AWS SDK per Ruby API Reference*. ### `DeleteUserPolicy` Il seguente esempio di codice mostra come utilizzare`DeleteUserPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Deletes a user and their associated resources # # @param user_name [String] The name of the user to delete def delete_user(user_name) user = @iam_client.list_access_keys(user_name: user_name).access_key_metadata user.each do |key| @iam_client.delete_access_key({ access_key_id: key.access_key_id, user_name: user_name }) @logger.info("Deleted access key #{key.access_key_id} for user '#{user_name}'.") end @iam_client.delete_user(user_name: user_name) @logger.info("Deleted user '#{user_name}'.") rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting user '#{user_name}': #{e.message}") end ``` + Per i dettagli sull'API, [DeleteUserPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DeleteUserPolicy)consulta *AWS SDK per Ruby API Reference*. ### `DetachRolePolicy` Il seguente esempio di codice mostra come utilizzare`DetachRolePolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, collega e scollega le policy relative ai ruoli. ``` # Manages policies in AWS Identity and Access Management (IAM) class RolePolicyManager # Initialize with an AWS IAM client # # @param iam_client [Aws::IAM::Client] An initialized IAM client def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'PolicyManager' end # Creates a policy # # @param policy_name [String] The name of the policy # @param policy_document [Hash] The policy document # @return [String] The policy ARN if successful, otherwise nil def create_policy(policy_name, policy_document) response = @iam_client.create_policy( policy_name: policy_name, policy_document: policy_document.to_json ) response.policy.arn rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating policy: #{e.message}") nil end # Fetches an IAM policy by its ARN # @param policy_arn [String] the ARN of the IAM policy to retrieve # @return [Aws::IAM::Types::GetPolicyResponse] the policy object if found def get_policy(policy_arn) response = @iam_client.get_policy(policy_arn: policy_arn) policy = response.policy @logger.info("Got policy '#{policy.policy_name}'. Its ID is: #{policy.policy_id}.") policy rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Couldn't get policy '#{policy_arn}'. The policy does not exist.") raise rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't get policy '#{policy_arn}'. Here's why: #{e.code}: #{e.message}") raise end # Attaches a policy to a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def attach_policy_to_role(role_name, policy_arn) @iam_client.attach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error attaching policy to role: #{e.message}") false end # Lists policy ARNs attached to a role # # @param role_name [String] The name of the role # @return [Array] List of policy ARNs def list_attached_policy_arns(role_name) response = @iam_client.list_attached_role_policies(role_name: role_name) response.attached_policies.map(&:policy_arn) rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing policies attached to role: #{e.message}") [] end # Detaches a policy from a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def detach_policy_from_role(role_name, policy_arn) @iam_client.detach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error detaching policy from role: #{e.message}") false end end ``` + Per i dettagli sull'API, [DetachRolePolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DetachRolePolicy)consulta *AWS SDK per Ruby API Reference*. ### `DetachUserPolicy` Il seguente esempio di codice mostra come utilizzare`DetachUserPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Detaches a policy from a user # # @param user_name [String] The name of the user # @param policy_arn [String] The ARN of the policy to detach # @return [Boolean] true if the policy was successfully detached, false otherwise def detach_user_policy(user_name, policy_arn) @iam_client.detach_user_policy( user_name: user_name, policy_arn: policy_arn ) @logger.info("Policy '#{policy_arn}' detached from user '#{user_name}' successfully.") true rescue Aws::IAM::Errors::NoSuchEntity @logger.error('Error detaching policy: Policy or user does not exist.') false rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error detaching policy from user '#{user_name}': #{e.message}") false end ``` + Per i dettagli sull'API, [DetachUserPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/DetachUserPolicy)consulta *AWS SDK per Ruby API Reference*. ### `GetAccountPasswordPolicy` Il seguente esempio di codice mostra come utilizzare`GetAccountPasswordPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Class to manage IAM account password policies class PasswordPolicyManager attr_accessor :iam_client, :logger def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'IAMPolicyManager' end # Retrieves and logs the account password policy def print_account_password_policy response = @iam_client.get_account_password_policy @logger.info("The account password policy is: #{response.password_policy.to_h}") rescue Aws::IAM::Errors::NoSuchEntity @logger.info('The account does not have a password policy.') rescue Aws::Errors::ServiceError => e @logger.error("Couldn't print the account password policy. Error: #{e.code} - #{e.message}") raise end end ``` + Per i dettagli sull'API, [GetAccountPasswordPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/GetAccountPasswordPolicy)consulta *AWS SDK per Ruby API Reference*. ### `GetPolicy` Il seguente esempio di codice mostra come utilizzare`GetPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Fetches an IAM policy by its ARN # @param policy_arn [String] the ARN of the IAM policy to retrieve # @return [Aws::IAM::Types::GetPolicyResponse] the policy object if found def get_policy(policy_arn) response = @iam_client.get_policy(policy_arn: policy_arn) policy = response.policy @logger.info("Got policy '#{policy.policy_name}'. Its ID is: #{policy.policy_id}.") policy rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Couldn't get policy '#{policy_arn}'. The policy does not exist.") raise rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't get policy '#{policy_arn}'. Here's why: #{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [GetPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/GetPolicy)consulta *AWS SDK per Ruby API Reference*. ### `GetRole` Il seguente esempio di codice mostra come utilizzare`GetRole`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Gets data about a role. # # @param name [String] The name of the role to look up. # @return [Aws::IAM::Role] The retrieved role. def get_role(name) role = @iam_client.get_role({ role_name: name }).role puts("Got data for role '#{role.role_name}'. Its ARN is '#{role.arn}'.") rescue Aws::Errors::ServiceError => e puts("Couldn't get data for role '#{name}' Here's why:") puts("\t#{e.code}: #{e.message}") raise else role end ``` + Per i dettagli sull'API, [GetRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/GetRole)consulta *AWS SDK per Ruby API Reference*. ### `GetUser` Il seguente esempio di codice mostra come utilizzare`GetUser`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Retrieves a user's details # # @param user_name [String] The name of the user to retrieve # @return [Aws::IAM::Types::User, nil] The user object if found, or nil if an error occurred def get_user(user_name) response = @iam_client.get_user(user_name: user_name) response.user rescue Aws::IAM::Errors::NoSuchEntity @logger.error("User '#{user_name}' not found.") nil rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error retrieving user '#{user_name}': #{e.message}") nil end ``` + Per i dettagli sull'API, [GetUser](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/GetUser)consulta *AWS SDK per Ruby API Reference*. ### `ListAccessKeys` Il seguente esempio di codice mostra come utilizzare`ListAccessKeys`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, disattiva ed elimina le chiavi di accesso. ``` # Manages access keys for IAM users class AccessKeyManager def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'AccessKeyManager' end # Lists access keys for a user # # @param user_name [String] The name of the user. def list_access_keys(user_name) response = @iam_client.list_access_keys(user_name: user_name) if response.access_key_metadata.empty? @logger.info("No access keys found for user '#{user_name}'.") else response.access_key_metadata.map(&:access_key_id) end rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Error listing access keys: cannot find user '#{user_name}'.") [] rescue StandardError => e @logger.error("Error listing access keys: #{e.message}") [] end # Creates an access key for a user # # @param user_name [String] The name of the user. # @return [Boolean] def create_access_key(user_name) response = @iam_client.create_access_key(user_name: user_name) access_key = response.access_key @logger.info("Access key created for user '#{user_name}': #{access_key.access_key_id}") access_key rescue Aws::IAM::Errors::LimitExceeded @logger.error('Error creating access key: limit exceeded. Cannot create more.') nil rescue StandardError => e @logger.error("Error creating access key: #{e.message}") nil end # Deactivates an access key # # @param user_name [String] The name of the user. # @param access_key_id [String] The ID for the access key. # @return [Boolean] def deactivate_access_key(user_name, access_key_id) @iam_client.update_access_key( user_name: user_name, access_key_id: access_key_id, status: 'Inactive' ) true rescue StandardError => e @logger.error("Error deactivating access key: #{e.message}") false end # Deletes an access key # # @param user_name [String] The name of the user. # @param access_key_id [String] The ID for the access key. # @return [Boolean] def delete_access_key(user_name, access_key_id) @iam_client.delete_access_key( user_name: user_name, access_key_id: access_key_id ) true rescue StandardError => e @logger.error("Error deleting access key: #{e.message}") false end end ``` + Per i dettagli sull'API, [ListAccessKeys](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListAccessKeys)consulta *AWS SDK per Ruby API Reference*. ### `ListAccountAliases` Il seguente esempio di codice mostra come utilizzare`ListAccountAliases`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Elenca, crea ed elimina gli alias degli account. ``` class IAMAliasManager # Initializes the IAM client and logger # # @param iam_client [Aws::IAM::Client] An initialized IAM client. def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger end # Lists available AWS account aliases. def list_aliases response = @iam_client.list_account_aliases if response.account_aliases.count.positive? @logger.info('Account aliases are:') response.account_aliases.each { |account_alias| @logger.info(" #{account_alias}") } else @logger.info('No account aliases found.') end rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing account aliases: #{e.message}") end # Creates an AWS account alias. # # @param account_alias [String] The name of the account alias to create. # @return [Boolean] true if the account alias was created; otherwise, false. def create_account_alias(account_alias) @iam_client.create_account_alias(account_alias: account_alias) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating account alias: #{e.message}") false end # Deletes an AWS account alias. # # @param account_alias [String] The name of the account alias to delete. # @return [Boolean] true if the account alias was deleted; otherwise, false. def delete_account_alias(account_alias) @iam_client.delete_account_alias(account_alias: account_alias) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting account alias: #{e.message}") false end end ``` + Per i dettagli sull'API, [ListAccountAliases](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListAccountAliases)consulta *AWS SDK per Ruby API Reference*. ### `ListAttachedRolePolicies` Il seguente esempio di codice mostra come utilizzare`ListAttachedRolePolicies`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, collega e scollega le policy relative ai ruoli. ``` # Manages policies in AWS Identity and Access Management (IAM) class RolePolicyManager # Initialize with an AWS IAM client # # @param iam_client [Aws::IAM::Client] An initialized IAM client def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'PolicyManager' end # Creates a policy # # @param policy_name [String] The name of the policy # @param policy_document [Hash] The policy document # @return [String] The policy ARN if successful, otherwise nil def create_policy(policy_name, policy_document) response = @iam_client.create_policy( policy_name: policy_name, policy_document: policy_document.to_json ) response.policy.arn rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating policy: #{e.message}") nil end # Fetches an IAM policy by its ARN # @param policy_arn [String] the ARN of the IAM policy to retrieve # @return [Aws::IAM::Types::GetPolicyResponse] the policy object if found def get_policy(policy_arn) response = @iam_client.get_policy(policy_arn: policy_arn) policy = response.policy @logger.info("Got policy '#{policy.policy_name}'. Its ID is: #{policy.policy_id}.") policy rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Couldn't get policy '#{policy_arn}'. The policy does not exist.") raise rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't get policy '#{policy_arn}'. Here's why: #{e.code}: #{e.message}") raise end # Attaches a policy to a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def attach_policy_to_role(role_name, policy_arn) @iam_client.attach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error attaching policy to role: #{e.message}") false end # Lists policy ARNs attached to a role # # @param role_name [String] The name of the role # @return [Array] List of policy ARNs def list_attached_policy_arns(role_name) response = @iam_client.list_attached_role_policies(role_name: role_name) response.attached_policies.map(&:policy_arn) rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing policies attached to role: #{e.message}") [] end # Detaches a policy from a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def detach_policy_from_role(role_name, policy_arn) @iam_client.detach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error detaching policy from role: #{e.message}") false end end ``` + Per i dettagli sull'API, [ListAttachedRolePolicies](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListAttachedRolePolicies)consulta *AWS SDK per Ruby API Reference*. ### `ListGroups` Il seguente esempio di codice mostra come utilizzare`ListGroups`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # A class to manage IAM operations via the AWS SDK client class IamGroupManager # Initializes the IamGroupManager class # @param iam_client [Aws::IAM::Client] An instance of the IAM client def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger end # Lists up to a specified number of groups for the account. # @param count [Integer] The maximum number of groups to list. # @return [Aws::IAM::Client::Response] def list_groups(count) response = @iam_client.list_groups(max_items: count) response.groups.each do |group| @logger.info("\t#{group.group_name}") end response rescue Aws::Errors::ServiceError => e @logger.error("Couldn't list groups for the account. Here's why:") @logger.error("\t#{e.code}: #{e.message}") raise end end ``` + Per i dettagli sull'API, [ListGroups](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListGroups)consulta *AWS SDK per Ruby API Reference*. ### `ListPolicies` Il seguente esempio di codice mostra come utilizzare`ListPolicies`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Questo modulo di esempio elenca, crea, collega e scollega le policy relative ai ruoli. ``` # Manages policies in AWS Identity and Access Management (IAM) class RolePolicyManager # Initialize with an AWS IAM client # # @param iam_client [Aws::IAM::Client] An initialized IAM client def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'PolicyManager' end # Creates a policy # # @param policy_name [String] The name of the policy # @param policy_document [Hash] The policy document # @return [String] The policy ARN if successful, otherwise nil def create_policy(policy_name, policy_document) response = @iam_client.create_policy( policy_name: policy_name, policy_document: policy_document.to_json ) response.policy.arn rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating policy: #{e.message}") nil end # Fetches an IAM policy by its ARN # @param policy_arn [String] the ARN of the IAM policy to retrieve # @return [Aws::IAM::Types::GetPolicyResponse] the policy object if found def get_policy(policy_arn) response = @iam_client.get_policy(policy_arn: policy_arn) policy = response.policy @logger.info("Got policy '#{policy.policy_name}'. Its ID is: #{policy.policy_id}.") policy rescue Aws::IAM::Errors::NoSuchEntity @logger.error("Couldn't get policy '#{policy_arn}'. The policy does not exist.") raise rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't get policy '#{policy_arn}'. Here's why: #{e.code}: #{e.message}") raise end # Attaches a policy to a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def attach_policy_to_role(role_name, policy_arn) @iam_client.attach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error attaching policy to role: #{e.message}") false end # Lists policy ARNs attached to a role # # @param role_name [String] The name of the role # @return [Array] List of policy ARNs def list_attached_policy_arns(role_name) response = @iam_client.list_attached_role_policies(role_name: role_name) response.attached_policies.map(&:policy_arn) rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing policies attached to role: #{e.message}") [] end # Detaches a policy from a role # # @param role_name [String] The name of the role # @param policy_arn [String] The policy ARN # @return [Boolean] true if successful, false otherwise def detach_policy_from_role(role_name, policy_arn) @iam_client.detach_role_policy( role_name: role_name, policy_arn: policy_arn ) true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error detaching policy from role: #{e.message}") false end end ``` + Per i dettagli sull'API, [ListPolicies](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListPolicies)consulta *AWS SDK per Ruby API Reference*. ### `ListRolePolicies` Il seguente esempio di codice mostra come utilizzare`ListRolePolicies`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Lists policy ARNs attached to a role # # @param role_name [String] The name of the role # @return [Array] List of policy ARNs def list_attached_policy_arns(role_name) response = @iam_client.list_attached_role_policies(role_name: role_name) response.attached_policies.map(&:policy_arn) rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing policies attached to role: #{e.message}") [] end ``` + Per i dettagli sull'API, [ListRolePolicies](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListRolePolicies)consulta *AWS SDK per Ruby API Reference*. ### `ListRoles` Il seguente esempio di codice mostra come utilizzare`ListRoles`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Lists IAM roles up to a specified count. # @param count [Integer] the maximum number of roles to list. # @return [Array] the names of the roles. def list_roles(count) role_names = [] roles_counted = 0 @iam_client.list_roles.each_page do |page| page.roles.each do |role| break if roles_counted >= count @logger.info("\t#{roles_counted + 1}: #{role.role_name}") role_names << role.role_name roles_counted += 1 end break if roles_counted >= count end role_names rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't list roles for the account. Here's why:") @logger.error("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, [ListRoles](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListRoles)consulta *AWS SDK per Ruby API Reference*. ### `ListSAMLProviders` Il seguente esempio di codice mostra come utilizzare`ListSAMLProviders`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` class SamlProviderLister # Initializes the SamlProviderLister with IAM client and a logger. # @param iam_client [Aws::IAM::Client] The IAM client object. # @param logger [Logger] The logger object for logging output. def initialize(iam_client, logger = Logger.new($stdout)) @iam_client = iam_client @logger = logger end # Lists up to a specified number of SAML providers for the account. # @param count [Integer] The maximum number of providers to list. # @return [Aws::IAM::Client::Response] def list_saml_providers(count) response = @iam_client.list_saml_providers response.saml_provider_list.take(count).each do |provider| @logger.info("\t#{provider.arn}") end response rescue Aws::Errors::ServiceError => e @logger.error("Couldn't list SAML providers. Here's why:") @logger.error("\t#{e.code}: #{e.message}") raise end end ``` + Per i dettagli sull'API, consulta [List SAMLProviders](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListSAMLProviders) in *AWS SDK per Ruby API Reference*. ### `ListServerCertificates` Il seguente esempio di codice mostra come utilizzare`ListServerCertificates`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Elenca, aggiorna ed elimina i certificati server. ``` class ServerCertificateManager def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'ServerCertificateManager' end # Creates a new server certificate. # @param name [String] the name of the server certificate # @param certificate_body [String] the contents of the certificate # @param private_key [String] the private key contents # @return [Boolean] returns true if the certificate was successfully created def create_server_certificate(name, certificate_body, private_key) @iam_client.upload_server_certificate({ server_certificate_name: name, certificate_body: certificate_body, private_key: private_key }) true rescue Aws::IAM::Errors::ServiceError => e puts "Failed to create server certificate: #{e.message}" false end # Lists available server certificate names. def list_server_certificate_names response = @iam_client.list_server_certificates if response.server_certificate_metadata_list.empty? @logger.info('No server certificates found.') return end response.server_certificate_metadata_list.each do |certificate_metadata| @logger.info("Certificate Name: #{certificate_metadata.server_certificate_name}") end rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing server certificates: #{e.message}") end # Updates the name of a server certificate. def update_server_certificate_name(current_name, new_name) @iam_client.update_server_certificate( server_certificate_name: current_name, new_server_certificate_name: new_name ) @logger.info("Server certificate name updated from '#{current_name}' to '#{new_name}'.") true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error updating server certificate name: #{e.message}") false end # Deletes a server certificate. def delete_server_certificate(name) @iam_client.delete_server_certificate(server_certificate_name: name) @logger.info("Server certificate '#{name}' deleted.") true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting server certificate: #{e.message}") false end end ``` + Per i dettagli sull'API, [ListServerCertificates](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListServerCertificates)consulta *AWS SDK per Ruby API Reference*. ### `ListUsers` Il seguente esempio di codice mostra come utilizzare`ListUsers`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Lists all users in the AWS account # # @return [Array] An array of user objects def list_users users = [] @iam_client.list_users.each_page do |page| page.users.each do |user| users << user end end users rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing users: #{e.message}") [] end ``` + Per i dettagli sull'API, [ListUsers](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/ListUsers)consulta *AWS SDK per Ruby API Reference*. ### `PutUserPolicy` Il seguente esempio di codice mostra come utilizzare`PutUserPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Creates an inline policy for a specified user. # @param username [String] The name of the IAM user. # @param policy_name [String] The name of the policy to create. # @param policy_document [String] The JSON policy document. # @return [Boolean] def create_user_policy(username, policy_name, policy_document) @iam_client.put_user_policy({ user_name: username, policy_name: policy_name, policy_document: policy_document }) @logger.info("Policy #{policy_name} created for user #{username}.") true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Couldn't create policy #{policy_name} for user #{username}. Here's why:") @logger.error("\t#{e.code}: #{e.message}") false end ``` + Per i dettagli sull'API, [PutUserPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/PutUserPolicy)consulta *AWS SDK per Ruby API Reference*. ### `UpdateServerCertificate` Il seguente esempio di codice mostra come utilizzare`UpdateServerCertificate`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). Elenca, aggiorna ed elimina i certificati server. ``` class ServerCertificateManager def initialize(iam_client, logger: Logger.new($stdout)) @iam_client = iam_client @logger = logger @logger.progname = 'ServerCertificateManager' end # Creates a new server certificate. # @param name [String] the name of the server certificate # @param certificate_body [String] the contents of the certificate # @param private_key [String] the private key contents # @return [Boolean] returns true if the certificate was successfully created def create_server_certificate(name, certificate_body, private_key) @iam_client.upload_server_certificate({ server_certificate_name: name, certificate_body: certificate_body, private_key: private_key }) true rescue Aws::IAM::Errors::ServiceError => e puts "Failed to create server certificate: #{e.message}" false end # Lists available server certificate names. def list_server_certificate_names response = @iam_client.list_server_certificates if response.server_certificate_metadata_list.empty? @logger.info('No server certificates found.') return end response.server_certificate_metadata_list.each do |certificate_metadata| @logger.info("Certificate Name: #{certificate_metadata.server_certificate_name}") end rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error listing server certificates: #{e.message}") end # Updates the name of a server certificate. def update_server_certificate_name(current_name, new_name) @iam_client.update_server_certificate( server_certificate_name: current_name, new_server_certificate_name: new_name ) @logger.info("Server certificate name updated from '#{current_name}' to '#{new_name}'.") true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error updating server certificate name: #{e.message}") false end # Deletes a server certificate. def delete_server_certificate(name) @iam_client.delete_server_certificate(server_certificate_name: name) @logger.info("Server certificate '#{name}' deleted.") true rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error deleting server certificate: #{e.message}") false end end ``` + Per i dettagli sull'API, [UpdateServerCertificate](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/UpdateServerCertificate)consulta *AWS SDK per Ruby API Reference*. ### `UpdateUser` Il seguente esempio di codice mostra come utilizzare`UpdateUser`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Updates an IAM user's name # # @param current_name [String] The current name of the user # @param new_name [String] The new name of the user def update_user_name(current_name, new_name) @iam_client.update_user(user_name: current_name, new_user_name: new_name) true rescue StandardError => e @logger.error("Error updating user name from '#{current_name}' to '#{new_name}': #{e.message}") false end ``` + Per i dettagli sull'API, [UpdateUser](https://docs.aws.amazon.com/goto/SdkForRubyV3/iam-2010-05-08/UpdateUser)consulta *AWS SDK per Ruby API Reference*. # Esempi per Kinesis con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Kinesis. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Esempi serverless](#serverless_examples) ## Esempi serverless ### Invocare una funzione Lambda da un trigger Kinesis L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un flusso Kinesis. La funzione recupera il payload Kinesis, lo decodifica da Base64 e registra il contenuto del record. **SDK per Ruby** C'è di più su. GitHub Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-kinesis-to-lambda). Utilizzo di un evento Kinesis con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'aws-sdk' def lambda_handler(event:, context:) event['Records'].each do |record| begin puts "Processed Kinesis Event - EventID: #{record['eventID']}" record_data = get_record_data_async(record['kinesis']) puts "Record Data: #{record_data}" # TODO: Do interesting work based on the new data rescue => err $stderr.puts "An error occurred #{err}" raise err end end puts "Successfully processed #{event['Records'].length} records." end def get_record_data_async(payload) data = Base64.decode64(payload['data']).force_encoding('UTF-8') # Placeholder for actual async work # You can use Ruby's asynchronous programming tools like async/await or fibers here. return data end ``` ### Segnalazione di errori di elementi batch per funzioni Lambda con un trigger Kinesis L’esempio di codice seguente mostra come implementare una risposta batch parziale per funzioni Lambda che ricevono eventi da un flusso Kinesis. La funzione riporta gli errori degli elementi batch nella risposta, segnalando a Lambda di riprovare tali messaggi in un secondo momento. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-kinesis-to-lambda-with-batch-item-handling). Segnalazione di errori di elementi batch di Kinesis con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'aws-sdk' def lambda_handler(event:, context:) batch_item_failures = [] event['Records'].each do |record| begin puts "Processed Kinesis Event - EventID: #{record['eventID']}" record_data = get_record_data_async(record['kinesis']) puts "Record Data: #{record_data}" # TODO: Do interesting work based on the new data rescue StandardError => err puts "An error occurred #{err}" # Since we are working with streams, we can return the failed item immediately. # Lambda will immediately begin to retry processing from this failed item onwards. return { batchItemFailures: [{ itemIdentifier: record['kinesis']['sequenceNumber'] }] } end end puts "Successfully processed #{event['Records'].length} records." { batchItemFailures: batch_item_failures } end def get_record_data_async(payload) data = Base64.decode64(payload['data']).force_encoding('utf-8') # Placeholder for actual async work sleep(1) data end ``` # AWS KMS esempi che utilizzano SDK for Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with AWS KMS. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) ## Azioni ### `CreateKey` Il seguente esempio di codice mostra come utilizzare`CreateKey`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/kms#code-examples). ``` require 'aws-sdk-kms' # v2: require 'aws-sdk' # Create a AWS KMS key. # As long we are only encrypting small amounts of data (4 KiB or less) directly, # a KMS key is fine for our purposes. # For larger amounts of data, # use the KMS key to encrypt a data encryption key (DEK). client = Aws::KMS::Client.new resp = client.create_key({ tags: [ { tag_key: 'CreatedBy', tag_value: 'ExampleUser' } ] }) puts resp.key_metadata.key_id ``` + Per i dettagli sull'API, [CreateKey](https://docs.aws.amazon.com/goto/SdkForRubyV3/kms-2014-11-01/CreateKey)consulta *AWS SDK per Ruby API Reference*. ### `Decrypt` Il seguente esempio di codice mostra come utilizzare`Decrypt`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/kms#code-examples). ``` require 'aws-sdk-kms' # v2: require 'aws-sdk' # Decrypted blob blob = '01020200785d68faeec386af1057904926253051eb2919d3c16078badf65b808b26dd057c101747cadf3593596e093d4ffbf22434a6d00000068306606092a864886f70d010706a0593057020100305206092a864886f70d010701301e060960864801650304012e3011040c9d629e573683972cdb7d94b30201108025b20b060591b02ca0deb0fbdfc2f86c8bfcb265947739851ad56f3adce91eba87c59691a9a1' blob_packed = [blob].pack('H*') client = Aws::KMS::Client.new(region: 'us-west-2') resp = client.decrypt({ ciphertext_blob: blob_packed }) puts 'Raw text: ' puts resp.plaintext ``` + Per informazioni dettagliate sull’API, consulta [Decrypt](https://docs.aws.amazon.com/goto/SdkForRubyV3/kms-2014-11-01/Decrypt) nella *documentazione di riferimento dell’API AWS SDK per Ruby *. ### `Encrypt` Il seguente esempio di codice mostra come usare`Encrypt`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/kms#code-examples). ``` require 'aws-sdk-kms' # v2: require 'aws-sdk' # ARN of the AWS KMS key. # # Replace the fictitious key ARN with a valid key ID keyId = 'arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab' text = '1234567890' client = Aws::KMS::Client.new(region: 'us-west-2') resp = client.encrypt({ key_id: keyId, plaintext: text }) # Display a readable version of the resulting encrypted blob. puts 'Blob:' puts resp.ciphertext_blob.unpack('H*') ``` + Per informazioni dettagliate sull’API, consulta [Encrypt](https://docs.aws.amazon.com/goto/SdkForRubyV3/kms-2014-11-01/Encrypt) nella *documentazione di riferimento dell’API AWS SDK per Ruby *. ### `ReEncrypt` Il seguente esempio di codice mostra come usare`ReEncrypt`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/kms#code-examples). ``` require 'aws-sdk-kms' # v2: require 'aws-sdk' # Human-readable version of the ciphertext of the data to reencrypt. blob = '01020200785d68faeec386af1057904926253051eb2919d3c16078badf65b808b26dd057c101747cadf3593596e093d4ffbf22434a6d00000068306606092a864886f70d010706a0593057020100305206092a864886f70d010701301e060960864801650304012e3011040c9d629e573683972cdb7d94b30201108025b20b060591b02ca0deb0fbdfc2f86c8bfcb265947739851ad56f3adce91eba87c59691a9a1' sourceCiphertextBlob = [blob].pack('H*') # Replace the fictitious key ARN with a valid key ID destinationKeyId = 'arn:aws:kms:us-west-2:111122223333:key/0987dcba-09fe-87dc-65ba-ab0987654321' client = Aws::KMS::Client.new(region: 'us-west-2') resp = client.re_encrypt({ ciphertext_blob: sourceCiphertextBlob, destination_key_id: destinationKeyId }) # Display a readable version of the resulting re-encrypted blob. puts 'Blob:' puts resp.ciphertext_blob.unpack('H*') ``` + Per i dettagli sull'API, [ReEncrypt](https://docs.aws.amazon.com/goto/SdkForRubyV3/kms-2014-11-01/ReEncrypt)consulta *AWS SDK per Ruby API Reference*. # Esempi per Lambda con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with Lambda. *Nozioni di base*: esempi di codice che mostrano come eseguire le operazioni essenziali all’interno di un servizio. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) + [Nozioni di base](#basics) + [Azioni](#actions) + [Scenari](#scenarios) + [Esempi serverless](#serverless_examples) ## Nozioni di base ### Hello Lambda Il seguente esempio di codice mostra come iniziare a usare Lambda. **SDK per Ruby** C'è altro su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` require 'aws-sdk-lambda' # Creates an AWS Lambda client using the default credentials and configuration def lambda_client Aws::Lambda::Client.new end # Lists the Lambda functions in your AWS account, paginating the results if necessary def list_lambda_functions lambda = lambda_client # Use a pagination iterator to list all functions functions = [] lambda.list_functions.each_page do |page| functions.concat(page.functions) end # Print the name and ARN of each function functions.each do |function| puts "Function name: #{function.function_name}" puts "Function ARN: #{function.function_arn}" puts end puts "Total functions: #{functions.count}" end list_lambda_functions if __FILE__ == $PROGRAM_NAME ``` + Per i dettagli sull'API, consulta la [ListFunctions](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/ListFunctions)sezione *AWS SDK per Ruby API Reference*. ## Nozioni di base ### Informazioni di base L’esempio di codice seguente mostra come: + Crea un ruolo IAM e una funzione Lambda, quindi carica il codice del gestore. + Invocare la funzione con un singolo parametro e ottenere i risultati. + Aggiorna il codice della funzione e configuralo con una variabile di ambiente. + Invocare la funzione con nuovi parametri e ottenere i risultati. Visualizza il log di esecuzione restituito. + Elenca le funzioni dell’account, quindi elimina le risorse. Per ulteriori informazioni, consulta [Creare una funzione Lambda con la console](https://docs.aws.amazon.com/lambda/latest/dg/getting-started-create-function.html). **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). Configura le autorizzazioni IAM prerequisite per una funzione Lambda in grado di scrivere log. ``` # Get an AWS Identity and Access Management (IAM) role. # # @param iam_role_name: The name of the role to retrieve. # @param action: Whether to create or destroy the IAM apparatus. # @return: The IAM role. def manage_iam(iam_role_name, action) case action when 'create' create_iam_role(iam_role_name) when 'destroy' destroy_iam_role(iam_role_name) else raise "Incorrect action provided. Must provide 'create' or 'destroy'" end end private def create_iam_role(iam_role_name) role_policy = { 'Version': '2012-10-17', 'Statement': [ { 'Effect': 'Allow', 'Principal': { 'Service': 'lambda.amazonaws.com' }, 'Action': 'sts:AssumeRole' } ] } role = @iam_client.create_role( role_name: iam_role_name, assume_role_policy_document: role_policy.to_json ) @iam_client.attach_role_policy( { policy_arn: 'arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole', role_name: iam_role_name } ) wait_for_role_to_exist(iam_role_name) @logger.debug("Successfully created IAM role: #{role['role']['arn']}") sleep(10) [role, role_policy.to_json] end def destroy_iam_role(iam_role_name) @iam_client.detach_role_policy( { policy_arn: 'arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole', role_name: iam_role_name } ) @iam_client.delete_role(role_name: iam_role_name) @logger.debug("Detached policy & deleted IAM role: #{iam_role_name}") end def wait_for_role_to_exist(iam_role_name) @iam_client.wait_until(:role_exists, { role_name: iam_role_name }) do |w| w.max_attempts = 5 w.delay = 5 end end ``` Definisci un gestore Lambda che incrementa un numero fornito come parametro di invocazione. ``` require 'logger' # A function that increments a whole number by one (1) and logs the result. # Requires a manually-provided runtime parameter, 'number', which must be Int # # @param event [Hash] Parameters sent when the function is invoked # @param context [Hash] Methods and properties that provide information # about the invocation, function, and execution environment. # @return incremented_number [String] The incremented number. def lambda_handler(event:, context:) logger = Logger.new($stdout) log_level = ENV['LOG_LEVEL'] logger.level = case log_level when 'debug' Logger::DEBUG when 'info' Logger::INFO else Logger::ERROR end logger.debug('This is a debug log message.') logger.info('This is an info log message. Code executed successfully!') number = event['number'].to_i incremented_number = number + 1 logger.info("You provided #{number.round} and it was incremented to #{incremented_number.round}") incremented_number.round.to_s end ``` Comprimi la funzione Lambda in un pacchetto di implementazione: ``` # Creates a Lambda deployment package in .zip format. # # @param source_file: The name of the object, without suffix, for the Lambda file and zip. # @return: The deployment package. def create_deployment_package(source_file) Dir.chdir(File.dirname(__FILE__)) if File.exist?('lambda_function.zip') File.delete('lambda_function.zip') @logger.debug('Deleting old zip: lambda_function.zip') end Zip::File.open('lambda_function.zip', create: true) do |zipfile| zipfile.add('lambda_function.rb', "#{source_file}.rb") end @logger.debug("Zipping #{source_file}.rb into: lambda_function.zip.") File.read('lambda_function.zip').to_s rescue StandardError => e @logger.error("There was an error creating deployment package:\n #{e.message}") end ``` Crea una nuova funzione Lambda. ``` # Deploys a Lambda function. # # @param function_name: The name of the Lambda function. # @param handler_name: The fully qualified name of the handler function. # @param role_arn: The IAM role to use for the function. # @param deployment_package: The deployment package that contains the function code in .zip format. # @return: The Amazon Resource Name (ARN) of the newly created function. def create_function(function_name, handler_name, role_arn, deployment_package) response = @lambda_client.create_function({ role: role_arn.to_s, function_name: function_name, handler: handler_name, runtime: 'ruby2.7', code: { zip_file: deployment_package }, environment: { variables: { 'LOG_LEVEL' => 'info' } } }) @lambda_client.wait_until(:function_active_v2, { function_name: function_name }) do |w| w.max_attempts = 5 w.delay = 5 end response rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error creating #{function_name}:\n #{e.message}") rescue Aws::Waiters::Errors::WaiterFailed => e @logger.error("Failed waiting for #{function_name} to activate:\n #{e.message}") end ``` Invocare la tua funzione Lambda con parametri di runtime facoltativi. ``` # Invokes a Lambda function. # @param function_name [String] The name of the function to invoke. # @param payload [nil] Payload containing runtime parameters. # @return [Object] The response from the function invocation. def invoke_function(function_name, payload = nil) params = { function_name: function_name } params[:payload] = payload unless payload.nil? @lambda_client.invoke(params) rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error executing #{function_name}:\n #{e.message}") end ``` Aggiorna la configurazione della funzione Lambda per inserire una nuova variabile di ambiente. ``` # Updates the environment variables for a Lambda function. # @param function_name: The name of the function to update. # @param log_level: The log level of the function. # @return: Data about the update, including the status. def update_function_configuration(function_name, log_level) @lambda_client.update_function_configuration({ function_name: function_name, environment: { variables: { 'LOG_LEVEL' => log_level } } }) @lambda_client.wait_until(:function_updated_v2, { function_name: function_name }) do |w| w.max_attempts = 5 w.delay = 5 end rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error updating configurations for #{function_name}:\n #{e.message}") rescue Aws::Waiters::Errors::WaiterFailed => e @logger.error("Failed waiting for #{function_name} to activate:\n #{e.message}") end ``` Aggiorna il codice della funzione Lambda con un pacchetto di implementazione diverso contenente codice diverso. ``` # Updates the code for a Lambda function by submitting a .zip archive that contains # the code for the function. # # @param function_name: The name of the function to update. # @param deployment_package: The function code to update, packaged as bytes in # .zip format. # @return: Data about the update, including the status. def update_function_code(function_name, deployment_package) @lambda_client.update_function_code( function_name: function_name, zip_file: deployment_package ) @lambda_client.wait_until(:function_updated_v2, { function_name: function_name }) do |w| w.max_attempts = 5 w.delay = 5 end rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error updating function code for: #{function_name}:\n #{e.message}") nil rescue Aws::Waiters::Errors::WaiterFailed => e @logger.error("Failed waiting for #{function_name} to update:\n #{e.message}") end ``` Elenca tutte le funzioni Lambda esistenti utilizzando l’impaginatore integrato. ``` # Lists the Lambda functions for the current account. def list_functions functions = [] @lambda_client.list_functions.each do |response| response['functions'].each do |function| functions.append(function['function_name']) end end functions rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error listing functions:\n #{e.message}") end ``` Elimina una funzione Lambda specifica. ``` # Deletes a Lambda function. # @param function_name: The name of the function to delete. def delete_function(function_name) print "Deleting function: #{function_name}..." @lambda_client.delete_function( function_name: function_name ) print 'Done!'.green rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error deleting #{function_name}:\n #{e.message}") end ``` + Per informazioni dettagliate sull’API, consulta i seguenti argomenti nella *documentazione di riferimento dell’API AWS SDK per Ruby *. + [CreateFunction](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/CreateFunction) + [DeleteFunction](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/DeleteFunction) + [GetFunction](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/GetFunction) + [Invoke](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/Invoke) + [ListFunctions](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/ListFunctions) + [UpdateFunctionCode](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/UpdateFunctionCode) + [UpdateFunctionConfiguration](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/UpdateFunctionConfiguration) ## Azioni ### `CreateFunction` Il seguente esempio di codice mostra come usare`CreateFunction`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` class LambdaWrapper attr_accessor :lambda_client, :cloudwatch_client, :iam_client def initialize @lambda_client = Aws::Lambda::Client.new @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1') @iam_client = Aws::IAM::Client.new(region: 'us-east-1') @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Deploys a Lambda function. # # @param function_name: The name of the Lambda function. # @param handler_name: The fully qualified name of the handler function. # @param role_arn: The IAM role to use for the function. # @param deployment_package: The deployment package that contains the function code in .zip format. # @return: The Amazon Resource Name (ARN) of the newly created function. def create_function(function_name, handler_name, role_arn, deployment_package) response = @lambda_client.create_function({ role: role_arn.to_s, function_name: function_name, handler: handler_name, runtime: 'ruby2.7', code: { zip_file: deployment_package }, environment: { variables: { 'LOG_LEVEL' => 'info' } } }) @lambda_client.wait_until(:function_active_v2, { function_name: function_name }) do |w| w.max_attempts = 5 w.delay = 5 end response rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error creating #{function_name}:\n #{e.message}") rescue Aws::Waiters::Errors::WaiterFailed => e @logger.error("Failed waiting for #{function_name} to activate:\n #{e.message}") end ``` + Per i dettagli sull'API, consulta la [CreateFunction](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/CreateFunction)sezione *AWS SDK per Ruby API Reference*. ### `DeleteFunction` Il seguente esempio di codice mostra come utilizzare`DeleteFunction`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` class LambdaWrapper attr_accessor :lambda_client, :cloudwatch_client, :iam_client def initialize @lambda_client = Aws::Lambda::Client.new @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1') @iam_client = Aws::IAM::Client.new(region: 'us-east-1') @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Deletes a Lambda function. # @param function_name: The name of the function to delete. def delete_function(function_name) print "Deleting function: #{function_name}..." @lambda_client.delete_function( function_name: function_name ) print 'Done!'.green rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error deleting #{function_name}:\n #{e.message}") end ``` + Per i dettagli sull'API, consulta la [DeleteFunction](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/DeleteFunction)sezione *AWS SDK per Ruby API Reference*. ### `GetFunction` Il seguente esempio di codice mostra come utilizzare`GetFunction`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` class LambdaWrapper attr_accessor :lambda_client, :cloudwatch_client, :iam_client def initialize @lambda_client = Aws::Lambda::Client.new @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1') @iam_client = Aws::IAM::Client.new(region: 'us-east-1') @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Gets data about a Lambda function. # # @param function_name: The name of the function. # @return response: The function data, or nil if no such function exists. def get_function(function_name) @lambda_client.get_function( { function_name: function_name } ) rescue Aws::Lambda::Errors::ResourceNotFoundException => e @logger.debug("Could not find function: #{function_name}:\n #{e.message}") nil end ``` + Per i dettagli sull'API, consulta la [GetFunction](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/GetFunction)sezione *AWS SDK per Ruby API Reference*. ### `Invoke` Il seguente esempio di codice mostra come utilizzare`Invoke`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` class LambdaWrapper attr_accessor :lambda_client, :cloudwatch_client, :iam_client def initialize @lambda_client = Aws::Lambda::Client.new @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1') @iam_client = Aws::IAM::Client.new(region: 'us-east-1') @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Invokes a Lambda function. # @param function_name [String] The name of the function to invoke. # @param payload [nil] Payload containing runtime parameters. # @return [Object] The response from the function invocation. def invoke_function(function_name, payload = nil) params = { function_name: function_name } params[:payload] = payload unless payload.nil? @lambda_client.invoke(params) rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error executing #{function_name}:\n #{e.message}") end ``` + Per informazioni dettagliate sull’API, consulta [Invoke](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/Invoke) nella *documentazione di riferimento dell’API AWS SDK per Ruby *. ### `ListFunctions` Il seguente esempio di codice mostra come usare`ListFunctions`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` class LambdaWrapper attr_accessor :lambda_client, :cloudwatch_client, :iam_client def initialize @lambda_client = Aws::Lambda::Client.new @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1') @iam_client = Aws::IAM::Client.new(region: 'us-east-1') @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Lists the Lambda functions for the current account. def list_functions functions = [] @lambda_client.list_functions.each do |response| response['functions'].each do |function| functions.append(function['function_name']) end end functions rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error listing functions:\n #{e.message}") end ``` + Per i dettagli sull'API, consulta la [ListFunctions](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/ListFunctions)sezione *AWS SDK per Ruby API Reference*. ### `UpdateFunctionCode` Il seguente esempio di codice mostra come utilizzare`UpdateFunctionCode`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` class LambdaWrapper attr_accessor :lambda_client, :cloudwatch_client, :iam_client def initialize @lambda_client = Aws::Lambda::Client.new @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1') @iam_client = Aws::IAM::Client.new(region: 'us-east-1') @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Updates the code for a Lambda function by submitting a .zip archive that contains # the code for the function. # # @param function_name: The name of the function to update. # @param deployment_package: The function code to update, packaged as bytes in # .zip format. # @return: Data about the update, including the status. def update_function_code(function_name, deployment_package) @lambda_client.update_function_code( function_name: function_name, zip_file: deployment_package ) @lambda_client.wait_until(:function_updated_v2, { function_name: function_name }) do |w| w.max_attempts = 5 w.delay = 5 end rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error updating function code for: #{function_name}:\n #{e.message}") nil rescue Aws::Waiters::Errors::WaiterFailed => e @logger.error("Failed waiting for #{function_name} to update:\n #{e.message}") end ``` + Per i dettagli sull'API, consulta la [UpdateFunctionCode](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/UpdateFunctionCode)sezione *AWS SDK per Ruby API Reference*. ### `UpdateFunctionConfiguration` Il seguente esempio di codice mostra come utilizzare`UpdateFunctionConfiguration`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples). ``` class LambdaWrapper attr_accessor :lambda_client, :cloudwatch_client, :iam_client def initialize @lambda_client = Aws::Lambda::Client.new @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1') @iam_client = Aws::IAM::Client.new(region: 'us-east-1') @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Updates the environment variables for a Lambda function. # @param function_name: The name of the function to update. # @param log_level: The log level of the function. # @return: Data about the update, including the status. def update_function_configuration(function_name, log_level) @lambda_client.update_function_configuration({ function_name: function_name, environment: { variables: { 'LOG_LEVEL' => log_level } } }) @lambda_client.wait_until(:function_updated_v2, { function_name: function_name }) do |w| w.max_attempts = 5 w.delay = 5 end rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error updating configurations for #{function_name}:\n #{e.message}") rescue Aws::Waiters::Errors::WaiterFailed => e @logger.error("Failed waiting for #{function_name} to activate:\n #{e.message}") end ``` + Per i dettagli sull'API, consulta la [UpdateFunctionConfiguration](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/UpdateFunctionConfiguration)sezione *AWS SDK per Ruby API Reference*. ## Scenari ### Crea un’applicazione per analizzare il feedback dei clienti L’esempio di codice seguente mostra come creare un’applicazione che analizza le schede dei commenti dei clienti, le traduce dalla loro lingua originale, ne determina il sentiment e genera un file audio dal testo tradotto. **SDK per Ruby** Questa applicazione di esempio analizza e archivia le schede di feedback dei clienti. In particolare, soddisfa l’esigenza di un hotel fittizio a New York City. L’hotel riceve feedback dagli ospiti in varie lingue sotto forma di schede di commento fisiche. Tale feedback viene caricato nell’app tramite un client Web. Dopo aver caricato l’immagine di una scheda di commento, vengono eseguiti i seguenti passaggi: + Il testo viene estratto dall’immagine utilizzando Amazon Textract. + Amazon Comprehend determina il sentiment del testo estratto e la sua lingua. + Il testo estratto viene tradotto in inglese utilizzando Amazon Translate. + Amazon Polly sintetizza un file audio dal testo estratto. L’app completa può essere implementata con  AWS CDK. Per il codice sorgente e le istruzioni di distribuzione, consulta il progetto in [ GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/cross_service_examples/feedback_sentiment_analyzer). **Servizi utilizzati in questo esempio** + Amazon Comprehend + Lambda + Amazon Polly + Amazon Textract + Amazon Translate ## Esempi serverless ### Connessione a un database Amazon RDS in una funzione Lambda L’esempio di codice seguente mostra come implementare una funzione Lambda che si connette a un database RDS. La funzione effettua una semplice richiesta al database e restituisce il risultato. **SDK per Ruby** C'è altro su GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/lambda-function-connect-rds-iam). Connessione a un database Amazon RDS in una funzione Lambda tramite Ruby. ``` # Ruby code here. require 'aws-sdk-rds' require 'json' require 'mysql2' def lambda_handler(event:, context:) endpoint = ENV['DBEndpoint'] # Add the endpoint without https" port = ENV['Port'] # 3306 user = ENV['DBUser'] region = ENV['DBRegion'] # 'us-east-1' db_name = ENV['DBName'] credentials = Aws::Credentials.new( ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY'], ENV['AWS_SESSION_TOKEN'] ) rds_client = Aws::RDS::AuthTokenGenerator.new( region: region, credentials: credentials ) token = rds_client.auth_token( endpoint: endpoint+ ':' + port, user_name: user, region: region ) begin conn = Mysql2::Client.new( host: endpoint, username: user, password: token, port: port, database: db_name, sslca: '/var/task/global-bundle.pem', sslverify: true, enable_cleartext_plugin: true ) a = 3 b = 2 result = conn.query("SELECT #{a} + #{b} AS sum").first['sum'] puts result conn.close { statusCode: 200, body: result.to_json } rescue => e puts "Database connection failed due to #{e}" end end ``` ### Invocare una funzione Lambda da un trigger Kinesis L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un flusso Kinesis. La funzione recupera il payload Kinesis, lo decodifica da Base64 e registra il contenuto del record. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-kinesis-to-lambda). Utilizzo di un evento Kinesis con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'aws-sdk' def lambda_handler(event:, context:) event['Records'].each do |record| begin puts "Processed Kinesis Event - EventID: #{record['eventID']}" record_data = get_record_data_async(record['kinesis']) puts "Record Data: #{record_data}" # TODO: Do interesting work based on the new data rescue => err $stderr.puts "An error occurred #{err}" raise err end end puts "Successfully processed #{event['Records'].length} records." end def get_record_data_async(payload) data = Base64.decode64(payload['data']).force_encoding('UTF-8') # Placeholder for actual async work # You can use Ruby's asynchronous programming tools like async/await or fibers here. return data end ``` ### Invocare una funzione Lambda da un trigger DynamoDB L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un flusso DynamoDB. La funzione recupera il payload DynamoDB e registra il contenuto del record. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-ddb-to-lambda). Utilizzo di un evento DynamoDB con Lambda tramite Ruby. ``` def lambda_handler(event:, context:) return 'received empty event' if event['Records'].empty? event['Records'].each do |record| log_dynamodb_record(record) end "Records processed: #{event['Records'].length}" end def log_dynamodb_record(record) puts record['eventID'] puts record['eventName'] puts "DynamoDB Record: #{JSON.generate(record['dynamodb'])}" end ``` ### Invocare una funzione Lambda da un trigger Amazon DocumentDB L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un flusso di modifiche di DocumentDB. La funzione recupera il payload DocumentDB e registra il contenuto del record. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-docdb-to-lambda). Utilizzo di un evento Amazon DocumentDB con Lambda tramite Ruby. ``` require 'json' def lambda_handler(event:, context:) event['events'].each do |record| log_document_db_event(record) end 'OK' end def log_document_db_event(record) event_data = record['event'] || {} operation_type = event_data['operationType'] || 'Unknown' db = event_data.dig('ns', 'db') || 'Unknown' collection = event_data.dig('ns', 'coll') || 'Unknown' full_document = event_data['fullDocument'] || {} puts "Operation type: #{operation_type}" puts "db: #{db}" puts "collection: #{collection}" puts "Full document: #{JSON.pretty_generate(full_document)}" end ``` ### Invocare una funzione Lambda da un trigger Amazon MSK L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un cluster Amazon MSK. La funzione recupera il payload MSK e registra il contenuto del record. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-msk-to-lambda). Utilizzo di un evento Amazon MSK con Lambda tramite Ruby. ``` require 'base64' def lambda_handler(event:, context:) # Iterate through keys event['records'].each do |key, records| puts "Key: #{key}" # Iterate through records records.each do |record| puts "Record: #{record}" # Decode base64 msg = Base64.decode64(record['value']) puts "Message: #{msg}" end end end ``` ### Invocazione di una funzione Lambda da un trigger Amazon S3 L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dal caricamento di un oggetto in un bucket S3. La funzione recupera il nome del bucket S3 e la chiave dell’oggetto dal parametro evento e chiama l’API Amazon S3 per recuperare e registrare il tipo di contenuto dell’oggetto. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-s3-to-lambda). Utilizzo di un evento S3 con Lambda tramite Ruby. ``` require 'json' require 'uri' require 'aws-sdk' puts 'Loading function' def lambda_handler(event:, context:) s3 = Aws::S3::Client.new(region: 'region') # Your AWS region # puts "Received event: #{JSON.dump(event)}" # Get the object from the event and show its content type bucket = event['Records'][0]['s3']['bucket']['name'] key = URI.decode_www_form_component(event['Records'][0]['s3']['object']['key'], Encoding::UTF_8) begin response = s3.get_object(bucket: bucket, key: key) puts "CONTENT TYPE: #{response.content_type}" return response.content_type rescue StandardError => e puts e.message puts "Error getting object #{key} from bucket #{bucket}. Make sure they exist and your bucket is in the same region as this function." raise e end end ``` ### Invocazione di una funzione Lambda da un trigger Amazon SNS L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dal ricevimento di messaggi da un argomento SNS. La funzione recupera i messaggi dal parametro dell’evento e registra il contenuto di ogni messaggio. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-sns-to-lambda). Utilizzo di un evento SNS con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 def lambda_handler(event:, context:) event['Records'].map { |record| process_message(record) } end def process_message(record) message = record['Sns']['Message'] puts("Processing message: #{message}") rescue StandardError => e puts("Error processing message: #{e}") raise end ``` ### Invocazione di una funzione Lambda da un trigger Amazon SQS L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di messaggi da una coda SQS. La funzione recupera i messaggi dal parametro dell’evento e registra il contenuto di ogni messaggio. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-sqs-to-lambda). Utilizzo di un evento SQS con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 def lambda_handler(event:, context:) event['Records'].each do |message| process_message(message) end puts "done" end def process_message(message) begin puts "Processed message #{message['body']}" # TODO: Do interesting work based on the new message rescue StandardError => err puts "An error occurred" raise err end end ``` ### Segnalazione di errori di elementi batch per funzioni Lambda con un trigger Kinesis L’esempio di codice seguente mostra come implementare una risposta batch parziale per funzioni Lambda che ricevono eventi da un flusso Kinesis. La funzione riporta gli errori degli elementi batch nella risposta, segnalando a Lambda di riprovare tali messaggi in un secondo momento. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-kinesis-to-lambda-with-batch-item-handling). Segnalazione di errori di elementi batch di Kinesis con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'aws-sdk' def lambda_handler(event:, context:) batch_item_failures = [] event['Records'].each do |record| begin puts "Processed Kinesis Event - EventID: #{record['eventID']}" record_data = get_record_data_async(record['kinesis']) puts "Record Data: #{record_data}" # TODO: Do interesting work based on the new data rescue StandardError => err puts "An error occurred #{err}" # Since we are working with streams, we can return the failed item immediately. # Lambda will immediately begin to retry processing from this failed item onwards. return { batchItemFailures: [{ itemIdentifier: record['kinesis']['sequenceNumber'] }] } end end puts "Successfully processed #{event['Records'].length} records." { batchItemFailures: batch_item_failures } end def get_record_data_async(payload) data = Base64.decode64(payload['data']).force_encoding('utf-8') # Placeholder for actual async work sleep(1) data end ``` ### Segnalazione di errori di elementi batch per funzioni Lambda con un trigger DynamoDB L’esempio di codice seguente mostra come implementare una risposta batch parziale per funzioni Lambda che ricevono eventi da un flusso DynamoDB. La funzione riporta gli errori degli elementi batch nella risposta, segnalando a Lambda di riprovare tali messaggi in un secondo momento. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-ddb-to-lambda-with-batch-item-handling). Segnalazione di errori di elementi batch di DynamoDB con Lambda tramite Ruby. ``` def lambda_handler(event:, context:) records = event["Records"] cur_record_sequence_number = "" records.each do |record| begin # Process your record cur_record_sequence_number = record["dynamodb"]["SequenceNumber"] rescue StandardError => e # Return failed record's sequence number return {"batchItemFailures" => [{"itemIdentifier" => cur_record_sequence_number}]} end end {"batchItemFailures" => []} end ``` ### Segnalazione di errori di elementi batch per funzioni Lambda con un trigger Amazon SQS L’esempio di codice seguente mostra come implementare una risposta batch parziale per funzioni Lambda che ricevono eventi da una coda SQS. La funzione riporta gli errori degli elementi batch nella risposta, segnalando a Lambda di riprovare tali messaggi in un secondo momento. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-sqs-to-lambda-with-batch-item-handling). Segnalazione di errori di elementi batch di SQS con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'json' def lambda_handler(event:, context:) if event batch_item_failures = [] sqs_batch_response = {} event["Records"].each do |record| begin # process message rescue StandardError => e batch_item_failures << {"itemIdentifier" => record['messageId']} end end sqs_batch_response["batchItemFailures"] = batch_item_failures return sqs_batch_response end end ``` # Esempi per Amazon MSK con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Amazon MSK. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Esempi serverless](#serverless_examples) ## Esempi serverless ### Invocare una funzione Lambda da un trigger Amazon MSK L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di record da un cluster Amazon MSK. La funzione recupera il payload MSK e registra il contenuto del record. **SDK per Ruby** C'è di più su. GitHub Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-msk-to-lambda). Utilizzo di un evento Amazon MSK con Lambda tramite Ruby. ``` require 'base64' def lambda_handler(event:, context:) # Iterate through keys event['records'].each do |key, records| puts "Key: #{key}" # Iterate through records records.each do |record| puts "Record: #{record}" # Decode base64 msg = Base64.decode64(record['value']) puts "Message: #{msg}" end end end ``` # Esempi per Amazon Polly con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon Polly. AWS SDK per Ruby Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) + [Scenari](#scenarios) ## Azioni ### `DescribeVoices` Il seguente esempio di codice mostra come usare`DescribeVoices`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/polly#code-examples). ``` require 'aws-sdk-polly' # In v2: require 'aws-sdk' begin # Create an Amazon Polly client using # credentials from the shared credentials file ~/.aws/credentials # and the configuration (region) from the shared configuration file ~/.aws/config polly = Aws::Polly::Client.new # Get US English voices resp = polly.describe_voices(language_code: 'en-US') resp.voices.each do |v| puts v.name puts " #{v.gender}" puts end rescue StandardError => e puts 'Could not get voices' puts 'Error message:' puts e.message end ``` + Per i dettagli sull'API, consulta la [DescribeVoices](https://docs.aws.amazon.com/goto/SdkForRubyV3/polly-2016-06-10/DescribeVoices)sezione *AWS SDK per Ruby API Reference*. ### `ListLexicons` Il seguente esempio di codice mostra come utilizzare`ListLexicons`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/polly#code-examples). ``` require 'aws-sdk-polly' # In v2: require 'aws-sdk' begin # Create an Amazon Polly client using # credentials from the shared credentials file ~/.aws/credentials # and the configuration (region) from the shared configuration file ~/.aws/config polly = Aws::Polly::Client.new resp = polly.list_lexicons resp.lexicons.each do |l| puts l.name puts " Alphabet:#{l.attributes.alphabet}" puts " Language:#{l.attributes.language}" puts end rescue StandardError => e puts 'Could not get lexicons' puts 'Error message:' puts e.message end ``` + Per i dettagli sull'API, consulta la [ListLexicons](https://docs.aws.amazon.com/goto/SdkForRubyV3/polly-2016-06-10/ListLexicons)sezione *AWS SDK per Ruby API Reference*. ### `SynthesizeSpeech` Il seguente esempio di codice mostra come utilizzare`SynthesizeSpeech`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/polly#code-examples). ``` require 'aws-sdk-polly' # In v2: require 'aws-sdk' begin # Get the filename from the command line if ARGV.empty? puts 'You must supply a filename' exit 1 end filename = ARGV[0] # Open file and get the contents as a string if File.exist?(filename) contents = IO.read(filename) else puts "No such file: #{filename}" exit 1 end # Create an Amazon Polly client using # credentials from the shared credentials file ~/.aws/credentials # and the configuration (region) from the shared configuration file ~/.aws/config polly = Aws::Polly::Client.new resp = polly.synthesize_speech({ output_format: 'mp3', text: contents, voice_id: 'Joanna' }) # Save output # Get just the file name # abc/xyz.txt -> xyx.txt name = File.basename(filename) # Split up name so we get just the xyz part parts = name.split('.') first_part = parts[0] mp3_file = "#{first_part}.mp3" IO.copy_stream(resp.audio_stream, mp3_file) puts "Wrote MP3 content to: #{mp3_file}" rescue StandardError => e puts 'Got error:' puts 'Error message:' puts e.message end ``` + Per i dettagli sull'API, consulta la [SynthesizeSpeech](https://docs.aws.amazon.com/goto/SdkForRubyV3/polly-2016-06-10/SynthesizeSpeech)sezione *AWS SDK per Ruby API Reference*. ## Scenari ### Crea un’applicazione per analizzare il feedback dei clienti L’esempio di codice seguente mostra come creare un’applicazione che analizza le schede dei commenti dei clienti, le traduce dalla loro lingua originale, ne determina il sentiment e genera un file audio dal testo tradotto. **SDK per Ruby** Questa applicazione di esempio analizza e archivia le schede di feedback dei clienti. In particolare, soddisfa l’esigenza di un hotel fittizio a New York City. L’hotel riceve feedback dagli ospiti in varie lingue sotto forma di schede di commento fisiche. Tale feedback viene caricato nell’app tramite un client Web. Dopo aver caricato l’immagine di una scheda di commento, vengono eseguiti i seguenti passaggi: + Il testo viene estratto dall’immagine utilizzando Amazon Textract. + Amazon Comprehend determina il sentiment del testo estratto e la sua lingua. + Il testo estratto viene tradotto in inglese utilizzando Amazon Translate. + Amazon Polly sintetizza un file audio dal testo estratto. L’app completa può essere implementata con  AWS CDK. Per il codice sorgente e le istruzioni di distribuzione, consulta il progetto in [ GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/cross_service_examples/feedback_sentiment_analyzer). **Servizi utilizzati in questo esempio** + Amazon Comprehend + Lambda + Amazon Polly + Amazon Textract + Amazon Translate # Esempi per Amazon RDS con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon RDS. AWS SDK per Ruby Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) + [Azioni](#actions) + [Esempi serverless](#serverless_examples) ## Nozioni di base ### Hello Amazon RDS Il seguente esempio di codice mostra come iniziare a usare Amazon RDS. **SDK per Ruby** C'è altro su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/rds#code-examples). ``` require 'aws-sdk-rds' require 'logger' # RDSManager is a class responsible for managing RDS operations # such as listing all RDS DB instances in the current AWS account. class RDSManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Lists and prints all RDS DB instances in the current AWS account. def list_db_instances @logger.info('Listing RDS DB instances') paginator = @client.describe_db_instances instances = [] paginator.each_page do |page| instances.concat(page.db_instances) end if instances.empty? @logger.info('No instances found.') else @logger.info("Found #{instances.count} instance(s):") instances.each do |instance| @logger.info(" * #{instance.db_instance_identifier} (#{instance.db_instance_status})") end end end end if $PROGRAM_NAME == __FILE__ rds_client = Aws::RDS::Client.new(region: 'us-west-2') manager = RDSManager.new(rds_client) manager.list_db_instances end ``` + Per i dettagli sull'API, consulta [Descrivi DBInstances](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeDBInstances) in *AWS SDK per Ruby API Reference*. ## Azioni ### `CreateDBSnapshot` Il seguente esempio di codice mostra come utilizzare`CreateDBSnapshot`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/rds#code-examples). ``` require 'aws-sdk-rds' # v2: require 'aws-sdk' # Create a snapshot for an Amazon Relational Database Service (Amazon RDS) # DB instance. # # @param rds_resource [Aws::RDS::Resource] The resource containing SDK logic. # @param db_instance_name [String] The name of the Amazon RDS DB instance. # @return [Aws::RDS::DBSnapshot, nil] The snapshot created, or nil if error. def create_snapshot(rds_resource, db_instance_name) id = "snapshot-#{rand(10**6)}" db_instance = rds_resource.db_instance(db_instance_name) db_instance.create_snapshot({ db_snapshot_identifier: id }) rescue Aws::Errors::ServiceError => e puts "Couldn't create DB instance snapshot #{id}:\n #{e.message}" end ``` + Per i dettagli sull'API, consulta [Create DBSnapshot](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/CreateDBSnapshot) in *AWS SDK per Ruby API Reference*. ### `DescribeDBInstances` Il seguente esempio di codice mostra come utilizzare`DescribeDBInstances`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/rds#code-examples). ``` require 'aws-sdk-rds' # v2: require 'aws-sdk' # List all Amazon Relational Database Service (Amazon RDS) DB instances. # # @param rds_resource [Aws::RDS::Resource] An SDK for Ruby Amazon RDS resource. # @return [Array, nil] List of all DB instances, or nil if error. def list_instances(rds_resource) db_instances = [] rds_resource.db_instances.each do |i| db_instances.append({ "name": i.id, "status": i.db_instance_status }) end db_instances rescue Aws::Errors::ServiceError => e puts "Couldn't list instances:\n#{e.message}" end ``` + Per i dettagli sull'API, consulta [Descrivi DBInstances](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeDBInstances) in *AWS SDK per Ruby API Reference*. ### `DescribeDBParameterGroups` Il seguente esempio di codice mostra come utilizzare`DescribeDBParameterGroups`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/rds#code-examples). ``` require 'aws-sdk-rds' # v2: require 'aws-sdk' # List all Amazon Relational Database Service (Amazon RDS) parameter groups. # # @param rds_resource [Aws::RDS::Resource] An SDK for Ruby Amazon RDS resource. # @return [Array, nil] List of all parameter groups, or nil if error. def list_parameter_groups(rds_resource) parameter_groups = [] rds_resource.db_parameter_groups.each do |p| parameter_groups.append({ "name": p.db_parameter_group_name, "description": p.description }) end parameter_groups rescue Aws::Errors::ServiceError => e puts "Couldn't list parameter groups:\n #{e.message}" end ``` + Per i dettagli sull'API, consulta [Descrivere DBParameter i gruppi](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeDBParameterGroups) in *AWS SDK per Ruby API Reference*. ### `DescribeDBParameters` Il seguente esempio di codice mostra come utilizzare`DescribeDBParameters`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/rds#code-examples). ``` require 'aws-sdk-rds' # v2: require 'aws-sdk' # List all Amazon Relational Database Service (Amazon RDS) parameter groups. # # @param rds_resource [Aws::RDS::Resource] An SDK for Ruby Amazon RDS resource. # @return [Array, nil] List of all parameter groups, or nil if error. def list_parameter_groups(rds_resource) parameter_groups = [] rds_resource.db_parameter_groups.each do |p| parameter_groups.append({ "name": p.db_parameter_group_name, "description": p.description }) end parameter_groups rescue Aws::Errors::ServiceError => e puts "Couldn't list parameter groups:\n #{e.message}" end ``` + Per i dettagli sull'API, consulta [Descrivi DBParameters](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeDBParameters) in *AWS SDK per Ruby API Reference*. ### `DescribeDBSnapshots` Il seguente esempio di codice mostra come utilizzare`DescribeDBSnapshots`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/rds#code-examples). ``` require 'aws-sdk-rds' # v2: require 'aws-sdk' # List all Amazon Relational Database Service (Amazon RDS) DB instance # snapshots. # # @param rds_resource [Aws::RDS::Resource] An SDK for Ruby Amazon RDS resource. # @return instance_snapshots [Array, nil] All instance snapshots, or nil if error. def list_instance_snapshots(rds_resource) instance_snapshots = [] rds_resource.db_snapshots.each do |s| instance_snapshots.append({ "id": s.snapshot_id, "status": s.status }) end instance_snapshots rescue Aws::Errors::ServiceError => e puts "Couldn't list instance snapshots:\n #{e.message}" end ``` + Per i dettagli sull'API, consulta [Descrivi DBSnapshots](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeDBSnapshots) in *AWS SDK per Ruby API Reference*. ## Esempi serverless ### Connessione a un database Amazon RDS in una funzione Lambda L’esempio di codice seguente mostra come implementare una funzione Lambda che si connette a un database RDS. La funzione effettua una semplice richiesta al database e restituisce il risultato. **SDK per Ruby** C'è altro su GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/lambda-function-connect-rds-iam). Connessione a un database Amazon RDS in una funzione Lambda tramite Ruby. ``` # Ruby code here. require 'aws-sdk-rds' require 'json' require 'mysql2' def lambda_handler(event:, context:) endpoint = ENV['DBEndpoint'] # Add the endpoint without https" port = ENV['Port'] # 3306 user = ENV['DBUser'] region = ENV['DBRegion'] # 'us-east-1' db_name = ENV['DBName'] credentials = Aws::Credentials.new( ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY'], ENV['AWS_SESSION_TOKEN'] ) rds_client = Aws::RDS::AuthTokenGenerator.new( region: region, credentials: credentials ) token = rds_client.auth_token( endpoint: endpoint+ ':' + port, user_name: user, region: region ) begin conn = Mysql2::Client.new( host: endpoint, username: user, password: token, port: port, database: db_name, sslca: '/var/task/global-bundle.pem', sslverify: true, enable_cleartext_plugin: true ) a = 3 b = 2 result = conn.query("SELECT #{a} + #{b} AS sum").first['sum'] puts result conn.close { statusCode: 200, body: result.to_json } rescue => e puts "Database connection failed due to #{e}" end end ``` # Esempi per Amazon S3 con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon S3. AWS SDK per Ruby *Nozioni di base*: esempi di codice che mostrano come eseguire le operazioni essenziali all’interno di un servizio. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Nozioni di base](#get_started) + [Nozioni di base](#basics) + [Azioni](#actions) + [Scenari](#scenarios) + [Esempi serverless](#serverless_examples) ## Nozioni di base ### Hello Amazon S3 Il seguente esempio di codice mostra come iniziare a usare Amazon S3. **SDK per Ruby** C'è altro su. GitHub Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` # frozen_string_literal: true # S3Manager is a class responsible for managing S3 operations # such as listing all S3 buckets in the current AWS account. class S3Manager def initialize(client) @client = client @logger = Logger.new($stdout) end # Lists and prints all S3 buckets in the current AWS account. def list_buckets @logger.info('Here are the buckets in your account:') response = @client.list_buckets if response.buckets.empty? @logger.info("You don't have any S3 buckets yet.") else response.buckets.each do |bucket| @logger.info("- #{bucket.name}") end end rescue Aws::Errors::ServiceError => e @logger.error("Encountered an error while listing buckets: #{e.message}") end end if $PROGRAM_NAME == __FILE__ s3_client = Aws::S3::Client.new manager = S3Manager.new(s3_client) manager.list_buckets end ``` + Per i dettagli sull'API, consulta la [ListBuckets](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/ListBuckets)sezione *AWS SDK per Ruby API Reference*. ## Nozioni di base ### Informazioni di base L’esempio di codice seguente mostra come: + Crea un bucket e carica un file in tale bucket. + Scaricare un oggetto da un bucket. + Copiare un oggetto in una sottocartella in un bucket. + Elencare gli oggetti in un bucket. + Elimina il bucket e tutti gli oggetti in esso contenuti. **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps the getting started scenario actions. class ScenarioGettingStarted attr_reader :s3_resource # @param s3_resource [Aws::S3::Resource] An Amazon S3 resource. def initialize(s3_resource) @s3_resource = s3_resource end # Creates a bucket with a random name in the currently configured account and # AWS Region. # # @return [Aws::S3::Bucket] The newly created bucket. def create_bucket bucket = @s3_resource.create_bucket( bucket: "amzn-s3-demo-bucket-#{Random.uuid}", create_bucket_configuration: { location_constraint: 'us-east-1' # NOTE: only certain regions permitted } ) puts("Created demo bucket named #{bucket.name}.") rescue Aws::Errors::ServiceError => e puts('Tried and failed to create demo bucket.') puts("\t#{e.code}: #{e.message}") puts("\nCan't continue the demo without a bucket!") raise else bucket end # Requests a file name from the user. # # @return The name of the file. def create_file File.open('demo.txt', w) { |f| f.write('This is a demo file.') } end # Uploads a file to an Amazon S3 bucket. # # @param bucket [Aws::S3::Bucket] The bucket object representing the upload destination # @return [Aws::S3::Object] The Amazon S3 object that contains the uploaded file. def upload_file(bucket) File.open('demo.txt', 'w+') { |f| f.write('This is a demo file.') } s3_object = bucket.object(File.basename('demo.txt')) s3_object.upload_file('demo.txt') puts("Uploaded file demo.txt into bucket #{bucket.name} with key #{s3_object.key}.") rescue Aws::Errors::ServiceError => e puts("Couldn't upload file demo.txt to #{bucket.name}.") puts("\t#{e.code}: #{e.message}") raise else s3_object end # Downloads an Amazon S3 object to a file. # # @param s3_object [Aws::S3::Object] The object to download. def download_file(s3_object) puts("\nDo you want to download #{s3_object.key} to a local file (y/n)? ") answer = gets.chomp.downcase if answer == 'y' puts('Enter a name for the downloaded file: ') file_name = gets.chomp s3_object.download_file(file_name) puts("Object #{s3_object.key} successfully downloaded to #{file_name}.") end rescue Aws::Errors::ServiceError => e puts("Couldn't download #{s3_object.key}.") puts("\t#{e.code}: #{e.message}") raise end # Copies an Amazon S3 object to a subfolder within the same bucket. # # @param source_object [Aws::S3::Object] The source object to copy. # @return [Aws::S3::Object, nil] The destination object. def copy_object(source_object) dest_object = nil puts("\nDo you want to copy #{source_object.key} to a subfolder in your bucket (y/n)? ") answer = gets.chomp.downcase if answer == 'y' dest_object = source_object.bucket.object("demo-folder/#{source_object.key}") dest_object.copy_from(source_object) puts("Copied #{source_object.key} to #{dest_object.key}.") end rescue Aws::Errors::ServiceError => e puts("Couldn't copy #{source_object.key}.") puts("\t#{e.code}: #{e.message}") raise else dest_object end # Lists the objects in an Amazon S3 bucket. # # @param bucket [Aws::S3::Bucket] The bucket to query. def list_objects(bucket) puts("\nYour bucket contains the following objects:") bucket.objects.each do |obj| puts("\t#{obj.key}") end rescue Aws::Errors::ServiceError => e puts("Couldn't list the objects in bucket #{bucket.name}.") puts("\t#{e.code}: #{e.message}") raise end # Deletes the objects in an Amazon S3 bucket and deletes the bucket. # # @param bucket [Aws::S3::Bucket] The bucket to empty and delete. def delete_bucket(bucket) puts("\nDo you want to delete all of the objects as well as the bucket (y/n)? ") answer = gets.chomp.downcase if answer == 'y' bucket.objects.batch_delete! bucket.delete puts("Emptied and deleted bucket #{bucket.name}.\n") end rescue Aws::Errors::ServiceError => e puts("Couldn't empty and delete bucket #{bucket.name}.") puts("\t#{e.code}: #{e.message}") raise end end # Runs the Amazon S3 getting started scenario. def run_scenario(scenario) puts('-' * 88) puts('Welcome to the Amazon S3 getting started demo!') puts('-' * 88) bucket = scenario.create_bucket s3_object = scenario.upload_file(bucket) scenario.download_file(s3_object) scenario.copy_object(s3_object) scenario.list_objects(bucket) scenario.delete_bucket(bucket) puts('Thanks for watching!') puts('-' * 88) rescue Aws::Errors::ServiceError puts('Something went wrong with the demo!') end run_scenario(ScenarioGettingStarted.new(Aws::S3::Resource.new)) if $PROGRAM_NAME == __FILE__ ``` + Per informazioni dettagliate sull'API, consulta i seguenti argomenti nella *documentazione di riferimento dell’API AWS SDK per Ruby *. + [CopyObject](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/CopyObject) + [CreateBucket](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/CreateBucket) + [DeleteBucket](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/DeleteBucket) + [DeleteObjects](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/DeleteObjects) + [GetObject](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/GetObject) + [ListObjectsV2](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/ListObjectsV2) + [PutObject](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/PutObject) ## Azioni ### `CopyObject` Il seguente esempio di codice mostra come usare`CopyObject`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). Copia un oggetto. ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectCopyWrapper attr_reader :source_object # @param source_object [Aws::S3::Object] An existing Amazon S3 object. This is used as the source object for # copy actions. def initialize(source_object) @source_object = source_object end # Copy the source object to the specified target bucket and rename it with the target key. # # @param target_bucket [Aws::S3::Bucket] An existing Amazon S3 bucket where the object is copied. # @param target_object_key [String] The key to give the copy of the object. # @return [Aws::S3::Object, nil] The copied object when successful; otherwise, nil. def copy_object(target_bucket, target_object_key) @source_object.copy_to(bucket: target_bucket.name, key: target_object_key) target_bucket.object(target_object_key) rescue Aws::Errors::ServiceError => e puts "Couldn't copy #{@source_object.key} to #{target_object_key}. Here's why: #{e.message}" end end # Example usage: def run_demo source_bucket_name = "amzn-s3-demo-bucket1" source_key = "my-source-file.txt" target_bucket_name = "amzn-s3-demo-bucket2" target_key = "my-target-file.txt" source_bucket = Aws::S3::Bucket.new(source_bucket_name) wrapper = ObjectCopyWrapper.new(source_bucket.object(source_key)) target_bucket = Aws::S3::Bucket.new(target_bucket_name) target_object = wrapper.copy_object(target_bucket, target_key) return unless target_object puts "Copied #{source_key} from #{source_bucket_name} to #{target_object.bucket_name}:#{target_object.key}." end run_demo if $PROGRAM_NAME == __FILE__ ``` Copia un oggetto e aggiungi la crittografia lato server all’oggetto di destinazione. ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectCopyEncryptWrapper attr_reader :source_object # @param source_object [Aws::S3::Object] An existing Amazon S3 object. This is used as the source object for # copy actions. def initialize(source_object) @source_object = source_object end # Copy the source object to the specified target bucket, rename it with the target key, and encrypt it. # # @param target_bucket [Aws::S3::Bucket] An existing Amazon S3 bucket where the object is copied. # @param target_object_key [String] The key to give the copy of the object. # @return [Aws::S3::Object, nil] The copied object when successful; otherwise, nil. def copy_object(target_bucket, target_object_key, encryption) @source_object.copy_to(bucket: target_bucket.name, key: target_object_key, server_side_encryption: encryption) target_bucket.object(target_object_key) rescue Aws::Errors::ServiceError => e puts "Couldn't copy #{@source_object.key} to #{target_object_key}. Here's why: #{e.message}" end end # Example usage: def run_demo source_bucket_name = "amzn-s3-demo-bucket1" source_key = "my-source-file.txt" target_bucket_name = "amzn-s3-demo-bucket2" target_key = "my-target-file.txt" target_encryption = "AES256" source_bucket = Aws::S3::Bucket.new(source_bucket_name) wrapper = ObjectCopyEncryptWrapper.new(source_bucket.object(source_key)) target_bucket = Aws::S3::Bucket.new(target_bucket_name) target_object = wrapper.copy_object(target_bucket, target_key, target_encryption) return unless target_object puts "Copied #{source_key} from #{source_bucket_name} to #{target_object.bucket_name}:#{target_object.key} and "\ "encrypted the target with #{target_object.server_side_encryption} encryption." end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [CopyObject](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/CopyObject)sezione *AWS SDK per Ruby API Reference*. ### `CreateBucket` Il seguente esempio di codice mostra come utilizzare`CreateBucket`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 bucket actions. class BucketCreateWrapper attr_reader :bucket # @param bucket [Aws::S3::Bucket] An Amazon S3 bucket initialized with a name. This is a client-side object until # create is called. def initialize(bucket) @bucket = bucket end # Creates an Amazon S3 bucket in the specified AWS Region. # # @param region [String] The Region where the bucket is created. # @return [Boolean] True when the bucket is created; otherwise, false. def create?(region) @bucket.create(create_bucket_configuration: { location_constraint: region }) true rescue Aws::Errors::ServiceError => e puts "Couldn't create bucket. Here's why: #{e.message}" false end # Gets the Region where the bucket is located. # # @return [String] The location of the bucket. def location if @bucket.nil? 'None. You must create a bucket before you can get its location!' else @bucket.client.get_bucket_location(bucket: @bucket.name).location_constraint end rescue Aws::Errors::ServiceError => e "Couldn't get the location of #{@bucket.name}. Here's why: #{e.message}" end end # Example usage: def run_demo region = "us-west-2" wrapper = BucketCreateWrapper.new(Aws::S3::Bucket.new("amzn-s3-demo-bucket-#{Random.uuid}")) return unless wrapper.create?(region) puts "Created bucket #{wrapper.bucket.name}." puts "Your bucket's region is: #{wrapper.location}" end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [CreateBucket](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/CreateBucket)sezione *AWS SDK per Ruby API Reference*. ### `DeleteBucket` Il seguente esempio di codice mostra come utilizzare`DeleteBucket`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` # Deletes the objects in an Amazon S3 bucket and deletes the bucket. # # @param bucket [Aws::S3::Bucket] The bucket to empty and delete. def delete_bucket(bucket) puts("\nDo you want to delete all of the objects as well as the bucket (y/n)? ") answer = gets.chomp.downcase if answer == 'y' bucket.objects.batch_delete! bucket.delete puts("Emptied and deleted bucket #{bucket.name}.\n") end rescue Aws::Errors::ServiceError => e puts("Couldn't empty and delete bucket #{bucket.name}.") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, consulta la [DeleteBucket](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/DeleteBucket)sezione *AWS SDK per Ruby API Reference*. ### `DeleteBucketCors` Il seguente esempio di codice mostra come utilizzare`DeleteBucketCors`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 bucket CORS configuration. class BucketCorsWrapper attr_reader :bucket_cors # @param bucket_cors [Aws::S3::BucketCors] A bucket CORS object configured with an existing bucket. def initialize(bucket_cors) @bucket_cors = bucket_cors end # Deletes the CORS configuration of a bucket. # # @return [Boolean] True if the CORS rules were deleted; otherwise, false. def delete_cors @bucket_cors.delete true rescue Aws::Errors::ServiceError => e puts "Couldn't delete CORS rules for #{@bucket_cors.bucket.name}. Here's why: #{e.message}" false end end ``` + Per i dettagli sull'API, consulta la [DeleteBucketCors](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/DeleteBucketCors)sezione *AWS SDK per Ruby API Reference*. ### `DeleteBucketPolicy` Il seguente esempio di codice mostra come utilizzare`DeleteBucketPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` # Wraps an Amazon S3 bucket policy. class BucketPolicyWrapper attr_reader :bucket_policy # @param bucket_policy [Aws::S3::BucketPolicy] A bucket policy object configured with an existing bucket. def initialize(bucket_policy) @bucket_policy = bucket_policy end def delete_policy @bucket_policy.delete true rescue Aws::Errors::ServiceError => e puts "Couldn't delete the policy from #{@bucket_policy.bucket.name}. Here's why: #{e.message}" false end end ``` + Per i dettagli sull'API, consulta la [DeleteBucketPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/DeleteBucketPolicy)sezione *AWS SDK per Ruby API Reference*. ### `DeleteObjects` Il seguente esempio di codice mostra come utilizzare`DeleteObjects`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` # Deletes the objects in an Amazon S3 bucket and deletes the bucket. # # @param bucket [Aws::S3::Bucket] The bucket to empty and delete. def delete_bucket(bucket) puts("\nDo you want to delete all of the objects as well as the bucket (y/n)? ") answer = gets.chomp.downcase if answer == 'y' bucket.objects.batch_delete! bucket.delete puts("Emptied and deleted bucket #{bucket.name}.\n") end rescue Aws::Errors::ServiceError => e puts("Couldn't empty and delete bucket #{bucket.name}.") puts("\t#{e.code}: #{e.message}") raise end ``` + Per i dettagli sull'API, consulta la [DeleteObjects](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/DeleteObjects)sezione *AWS SDK per Ruby API Reference*. ### `GetBucketCors` Il seguente esempio di codice mostra come utilizzare`GetBucketCors`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 bucket CORS configuration. class BucketCorsWrapper attr_reader :bucket_cors # @param bucket_cors [Aws::S3::BucketCors] A bucket CORS object configured with an existing bucket. def initialize(bucket_cors) @bucket_cors = bucket_cors end # Gets the CORS configuration of a bucket. # # @return [Aws::S3::Type::GetBucketCorsOutput, nil] The current CORS configuration for the bucket. def cors @bucket_cors.data rescue Aws::Errors::ServiceError => e puts "Couldn't get CORS configuration for #{@bucket_cors.bucket.name}. Here's why: #{e.message}" nil end end ``` + Per i dettagli sull'API, consulta la [GetBucketCors](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/GetBucketCors)sezione *AWS SDK per Ruby API Reference*. ### `GetBucketPolicy` Il seguente esempio di codice mostra come utilizzare`GetBucketPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` # Wraps an Amazon S3 bucket policy. class BucketPolicyWrapper attr_reader :bucket_policy # @param bucket_policy [Aws::S3::BucketPolicy] A bucket policy object configured with an existing bucket. def initialize(bucket_policy) @bucket_policy = bucket_policy end # Gets the policy of a bucket. # # @return [Aws::S3::GetBucketPolicyOutput, nil] The current bucket policy. def policy policy = @bucket_policy.data.policy policy.respond_to?(:read) ? policy.read : policy rescue Aws::Errors::ServiceError => e puts "Couldn't get the policy for #{@bucket_policy.bucket.name}. Here's why: #{e.message}" nil end end ``` + Per i dettagli sull'API, consulta la [GetBucketPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/GetBucketPolicy)sezione *AWS SDK per Ruby API Reference*. ### `GetObject` Il seguente esempio di codice mostra come utilizzare`GetObject`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). Recupera un oggetto. ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectGetWrapper attr_reader :object # @param object [Aws::S3::Object] An existing Amazon S3 object. def initialize(object) @object = object end # Gets the object directly to a file. # # @param target_path [String] The path to the file where the object is downloaded. # @return [Aws::S3::Types::GetObjectOutput, nil] The retrieved object data if successful; otherwise nil. def get_object(target_path) @object.get(response_target: target_path) rescue Aws::Errors::ServiceError => e puts "Couldn't get object #{@object.key}. Here's why: #{e.message}" end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" object_key = "my-object.txt" target_path = "my-object-as-file.txt" wrapper = ObjectGetWrapper.new(Aws::S3::Object.new(bucket_name, object_key)) obj_data = wrapper.get_object(target_path) return unless obj_data puts "Object #{object_key} (#{obj_data.content_length} bytes} downloaded to #{target_path}." end run_demo if $PROGRAM_NAME == __FILE__ ``` Recupera un oggetto e segnala lo stato di crittografia lato server. ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectGetEncryptionWrapper attr_reader :object # @param object [Aws::S3::Object] An existing Amazon S3 object. def initialize(object) @object = object end # Gets the object into memory. # # @return [Aws::S3::Types::GetObjectOutput, nil] The retrieved object data if successful; otherwise nil. def object @object.get rescue Aws::Errors::ServiceError => e puts "Couldn't get object #{@object.key}. Here's why: #{e.message}" end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" object_key = "my-object.txt" wrapper = ObjectGetEncryptionWrapper.new(Aws::S3::Object.new(bucket_name, object_key)) obj_data = wrapper.get_object return unless obj_data encryption = obj_data.server_side_encryption.nil? ? 'no' : obj_data.server_side_encryption puts "Object #{object_key} uses #{encryption} encryption." end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [GetObject](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/GetObject)sezione *AWS SDK per Ruby API Reference*. ### `HeadObject` Il seguente esempio di codice mostra come utilizzare`HeadObject`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectExistsWrapper attr_reader :object # @param object [Aws::S3::Object] An Amazon S3 object. def initialize(object) @object = object end # Checks whether the object exists. # # @return [Boolean] True if the object exists; otherwise false. def exists? @object.exists? rescue Aws::Errors::ServiceError => e puts "Couldn't check existence of object #{@object.bucket.name}:#{@object.key}. Here's why: #{e.message}" false end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" object_key = "my-object.txt" wrapper = ObjectExistsWrapper.new(Aws::S3::Object.new(bucket_name, object_key)) exists = wrapper.exists? puts "Object #{object_key} #{exists ? 'does' : 'does not'} exist." end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [HeadObject](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/HeadObject)sezione *AWS SDK per Ruby API Reference*. ### `ListBuckets` Il seguente esempio di codice mostra come utilizzare`ListBuckets`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 resource actions. class BucketListWrapper attr_reader :s3_resource # @param s3_resource [Aws::S3::Resource] An Amazon S3 resource. def initialize(s3_resource) @s3_resource = s3_resource end # Lists buckets for the current account. # # @param count [Integer] The maximum number of buckets to list. def list_buckets(count) puts 'Found these buckets:' @s3_resource.buckets.each do |bucket| puts "\t#{bucket.name}" count -= 1 break if count.zero? end true rescue Aws::Errors::ServiceError => e puts "Couldn't list buckets. Here's why: #{e.message}" false end end # Example usage: def run_demo wrapper = BucketListWrapper.new(Aws::S3::Resource.new) wrapper.list_buckets(25) end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [ListBuckets](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/ListBuckets)sezione *AWS SDK per Ruby API Reference*. ### `ListObjectsV2` Il seguente esempio di codice mostra come utilizzare`ListObjectsV2`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 bucket actions. class BucketListObjectsWrapper attr_reader :bucket # @param bucket [Aws::S3::Bucket] An existing Amazon S3 bucket. def initialize(bucket) @bucket = bucket end # Lists object in a bucket. # # @param max_objects [Integer] The maximum number of objects to list. # @return [Integer] The number of objects listed. def list_objects(max_objects) count = 0 puts "The objects in #{@bucket.name} are:" @bucket.objects.each do |obj| puts "\t#{obj.key}" count += 1 break if count == max_objects end count rescue Aws::Errors::ServiceError => e puts "Couldn't list objects in bucket #{bucket.name}. Here's why: #{e.message}" 0 end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" wrapper = BucketListObjectsWrapper.new(Aws::S3::Bucket.new(bucket_name)) count = wrapper.list_objects(25) puts "Listed #{count} objects." end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [ListObjectsversione V2](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/ListObjectsV2) in *AWS SDK per Ruby API Reference.* ### `PutBucketCors` Il seguente esempio di codice mostra come utilizzare`PutBucketCors`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 bucket CORS configuration. class BucketCorsWrapper attr_reader :bucket_cors # @param bucket_cors [Aws::S3::BucketCors] A bucket CORS object configured with an existing bucket. def initialize(bucket_cors) @bucket_cors = bucket_cors end # Sets CORS rules on a bucket. # # @param allowed_methods [Array] The types of HTTP requests to allow. # @param allowed_origins [Array] The origins to allow. # @returns [Boolean] True if the CORS rules were set; otherwise, false. def set_cors(allowed_methods, allowed_origins) @bucket_cors.put( cors_configuration: { cors_rules: [ { allowed_methods: allowed_methods, allowed_origins: allowed_origins, allowed_headers: %w[*], max_age_seconds: 3600 } ] } ) true rescue Aws::Errors::ServiceError => e puts "Couldn't set CORS rules for #{@bucket_cors.bucket.name}. Here's why: #{e.message}" false end end ``` + Per i dettagli sull'API, consulta la [PutBucketCors](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/PutBucketCors)sezione *AWS SDK per Ruby API Reference*. ### `PutBucketPolicy` Il seguente esempio di codice mostra come utilizzare`PutBucketPolicy`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` # Wraps an Amazon S3 bucket policy. class BucketPolicyWrapper attr_reader :bucket_policy # @param bucket_policy [Aws::S3::BucketPolicy] A bucket policy object configured with an existing bucket. def initialize(bucket_policy) @bucket_policy = bucket_policy end # Sets a policy on a bucket. # def policy(policy) @bucket_policy.put(policy: policy) true rescue Aws::Errors::ServiceError => e puts "Couldn't set the policy for #{@bucket_policy.bucket.name}. Here's why: #{e.message}" false end end ``` + Per i dettagli sull'API, consulta la [PutBucketPolicy](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/PutBucketPolicy)sezione *AWS SDK per Ruby API Reference*. ### `PutBucketWebsite` Il seguente esempio di codice mostra come utilizzare`PutBucketWebsite`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' # Wraps Amazon S3 bucket website actions. class BucketWebsiteWrapper attr_reader :bucket_website # @param bucket_website [Aws::S3::BucketWebsite] A bucket website object configured with an existing bucket. def initialize(bucket_website) @bucket_website = bucket_website end # Sets a bucket as a static website. # # @param index_document [String] The name of the index document for the website. # @param error_document [String] The name of the error document to show for 4XX errors. # @return [Boolean] True when the bucket is configured as a website; otherwise, false. def set_website(index_document, error_document) @bucket_website.put( website_configuration: { index_document: { suffix: index_document }, error_document: { key: error_document } } ) true rescue Aws::Errors::ServiceError => e puts "Couldn't configure #{@bucket_website.bucket.name} as a website. Here's why: #{e.message}" false end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" index_document = "index.html" error_document = "404.html" wrapper = BucketWebsiteWrapper.new(Aws::S3::BucketWebsite.new(bucket_name)) return unless wrapper.set_website(index_document, error_document) puts "Successfully configured bucket #{bucket_name} as a static website." end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [PutBucketWebsite](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/PutBucketWebsite)sezione *AWS SDK per Ruby API Reference*. ### `PutObject` Il seguente esempio di codice mostra come utilizzare`PutObject`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). Carica un file utilizzando un caricamento gestito (Object.upload\$1file). ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectUploadFileWrapper attr_reader :object # @param object [Aws::S3::Object] An existing Amazon S3 object. def initialize(object) @object = object end # Uploads a file to an Amazon S3 object by using a managed uploader. # # @param file_path [String] The path to the file to upload. # @return [Boolean] True when the file is uploaded; otherwise false. def upload_file(file_path) @object.upload_file(file_path) true rescue Aws::Errors::ServiceError => e puts "Couldn't upload file #{file_path} to #{@object.key}. Here's why: #{e.message}" false end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" object_key = "my-uploaded-file" file_path = "object_upload_file.rb" wrapper = ObjectUploadFileWrapper.new(Aws::S3::Object.new(bucket_name, object_key)) return unless wrapper.upload_file(file_path) puts "File #{file_path} successfully uploaded to #{bucket_name}:#{object_key}." end run_demo if $PROGRAM_NAME == __FILE__ ``` Carica un file utilizzando Object.put. ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectPutWrapper attr_reader :object # @param object [Aws::S3::Object] An existing Amazon S3 object. def initialize(object) @object = object end def put_object(source_file_path) File.open(source_file_path, 'rb') do |file| @object.put(body: file) end true rescue Aws::Errors::ServiceError => e puts "Couldn't put #{source_file_path} to #{object.key}. Here's why: #{e.message}" false end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" object_key = "my-object-key" file_path = "my-local-file.txt" wrapper = ObjectPutWrapper.new(Aws::S3::Object.new(bucket_name, object_key)) success = wrapper.put_object(file_path) return unless success puts "Put file #{file_path} into #{object_key} in #{bucket_name}." end run_demo if $PROGRAM_NAME == __FILE__ ``` Carica un file utilizzando Object.put e aggiungi la crittografia lato server. ``` require 'aws-sdk-s3' # Wraps Amazon S3 object actions. class ObjectPutSseWrapper attr_reader :object # @param object [Aws::S3::Object] An existing Amazon S3 object. def initialize(object) @object = object end def put_object_encrypted(object_content, encryption) @object.put(body: object_content, server_side_encryption: encryption) true rescue Aws::Errors::ServiceError => e puts "Couldn't put your content to #{object.key}. Here's why: #{e.message}" false end end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" object_key = "my-encrypted-content" object_content = "This is my super-secret content." encryption = "AES256" wrapper = ObjectPutSseWrapper.new(Aws::S3::Object.new(bucket_name, object_content)) return unless wrapper.put_object_encrypted(object_content, encryption) puts "Put your content into #{bucket_name}:#{object_key} and encrypted it with #{encryption}." end run_demo if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [PutObject](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3-2006-03-01/PutObject)sezione *AWS SDK per Ruby API Reference*. ## Scenari ### Creazione di un URL prefirmato L’esempio di codice seguente mostra come creare un URL prefirmato per Amazon S3 e caricare un oggetto. **SDK per Ruby** C'è altro su GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/s3#code-examples). ``` require 'aws-sdk-s3' require 'net/http' # Creates a presigned URL that can be used to upload content to an object. # # @param bucket [Aws::S3::Bucket] An existing Amazon S3 bucket. # @param object_key [String] The key to give the uploaded object. # @return [URI, nil] The parsed URI if successful; otherwise nil. def get_presigned_url(bucket, object_key) url = bucket.object(object_key).presigned_url(:put) puts "Created presigned URL: #{url}" URI(url) rescue Aws::Errors::ServiceError => e puts "Couldn't create presigned URL for #{bucket.name}:#{object_key}. Here's why: #{e.message}" end # Example usage: def run_demo bucket_name = "amzn-s3-demo-bucket" object_key = "my-file.txt" object_content = "This is the content of my-file.txt." bucket = Aws::S3::Bucket.new(bucket_name) presigned_url = get_presigned_url(bucket, object_key) return unless presigned_url response = Net::HTTP.start(presigned_url.host) do |http| http.send_request('PUT', presigned_url.request_uri, object_content, 'content_type' => '') end case response when Net::HTTPSuccess puts 'Content uploaded!' else puts response.value end end run_demo if $PROGRAM_NAME == __FILE__ ``` ## Esempi serverless ### Invocazione di una funzione Lambda da un trigger Amazon S3 L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dal caricamento di un oggetto in un bucket S3. La funzione recupera il nome del bucket S3 e la chiave dell’oggetto dal parametro evento e chiama l’API Amazon S3 per recuperare e registrare il tipo di contenuto dell’oggetto. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-s3-to-lambda). Utilizzo di un evento S3 con Lambda tramite Ruby. ``` require 'json' require 'uri' require 'aws-sdk' puts 'Loading function' def lambda_handler(event:, context:) s3 = Aws::S3::Client.new(region: 'region') # Your AWS region # puts "Received event: #{JSON.dump(event)}" # Get the object from the event and show its content type bucket = event['Records'][0]['s3']['bucket']['name'] key = URI.decode_www_form_component(event['Records'][0]['s3']['object']['key'], Encoding::UTF_8) begin response = s3.get_object(bucket: bucket, key: key) puts "CONTENT TYPE: #{response.content_type}" return response.content_type rescue StandardError => e puts e.message puts "Error getting object #{key} from bucket #{bucket}. Make sure they exist and your bucket is in the same region as this function." raise e end end ``` # Esempi per Amazon SES con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Amazon SES. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) ## Azioni ### `GetIdentityVerificationAttributes` Il seguente esempio di codice mostra come usare`GetIdentityVerificationAttributes`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ses/v1#code-examples). ``` require 'aws-sdk-ses' # v2: require 'aws-sdk' # Create client in us-west-2 region # Replace us-west-2 with the AWS Region you're using for Amazon SES. client = Aws::SES::Client.new(region: 'us-west-2') # Get up to 1000 identities ids = client.list_identities({ identity_type: 'EmailAddress' }) ids.identities.each do |email| attrs = client.get_identity_verification_attributes({ identities: [email] }) status = attrs.verification_attributes[email].verification_status # Display email addresses that have been verified puts email if status == 'Success' end ``` + Per i dettagli sull'API, consulta la [GetIdentityVerificationAttributes](https://docs.aws.amazon.com/goto/SdkForRubyV3/email-2010-12-01/GetIdentityVerificationAttributes)sezione *AWS SDK per Ruby API Reference*. ### `ListIdentities` Il seguente esempio di codice mostra come utilizzare`ListIdentities`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ses/v1#code-examples). ``` require 'aws-sdk-ses' # v2: require 'aws-sdk' # Create client in us-west-2 region # Replace us-west-2 with the AWS Region you're using for Amazon SES. client = Aws::SES::Client.new(region: 'us-west-2') # Get up to 1000 identities ids = client.list_identities({ identity_type: 'EmailAddress' }) ids.identities.each do |email| attrs = client.get_identity_verification_attributes({ identities: [email] }) status = attrs.verification_attributes[email].verification_status # Display email addresses that have been verified puts email if status == 'Success' end ``` + Per i dettagli sull'API, consulta la [ListIdentities](https://docs.aws.amazon.com/goto/SdkForRubyV3/email-2010-12-01/ListIdentities)sezione *AWS SDK per Ruby API Reference*. ### `SendEmail` Il seguente esempio di codice mostra come utilizzare`SendEmail`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ses/v1#code-examples). ``` require 'aws-sdk-ses' # v2: require 'aws-sdk' # Replace sender@example.com with your "From" address. # This address must be verified with Amazon SES. sender = 'sender@example.com' # Replace recipient@example.com with a "To" address. If your account # is still in the sandbox, this address must be verified. recipient = 'recipient@example.com' # Specify a configuration set. To use a configuration # set, uncomment the next line and line 74. # configsetname = "ConfigSet" # The subject line for the email. subject = 'Amazon SES test (AWS SDK for Ruby)' # The HTML body of the email. htmlbody = '

Amazon SES test (AWS SDK for Ruby)

'\ '

This email was sent with '\ 'Amazon SES using the '\ 'AWS SDK for Ruby.' # The email body for recipients with non-HTML email clients. textbody = 'This email was sent with Amazon SES using the AWS SDK for Ruby.' # Specify the text encoding scheme. encoding = 'UTF-8' # Create a new SES client in the us-west-2 region. # Replace us-west-2 with the AWS Region you're using for Amazon SES. ses = Aws::SES::Client.new(region: 'us-west-2') # Try to send the email. begin # Provide the contents of the email. ses.send_email( destination: { to_addresses: [ recipient ] }, message: { body: { html: { charset: encoding, data: htmlbody }, text: { charset: encoding, data: textbody } }, subject: { charset: encoding, data: subject } }, source: sender # Uncomment the following line to use a configuration set. # configuration_set_name: configsetname, ) puts "Email sent to #{recipient}" # If something goes wrong, display an error message. rescue Aws::SES::Errors::ServiceError => e puts "Email not sent. Error message: #{e}" end ``` + Per i dettagli sull'API, consulta la [SendEmail](https://docs.aws.amazon.com/goto/SdkForRubyV3/email-2010-12-01/SendEmail)sezione *AWS SDK per Ruby API Reference*. ### `VerifyEmailIdentity` Il seguente esempio di codice mostra come utilizzare`VerifyEmailIdentity`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ses/v1#code-examples). ``` require 'aws-sdk-ses' # v2: require 'aws-sdk' # Replace recipient@example.com with a "To" address. recipient = 'recipient@example.com' # Create a new SES resource in the us-west-2 region. # Replace us-west-2 with the AWS Region you're using for Amazon SES. ses = Aws::SES::Client.new(region: 'us-west-2') # Try to verify email address. begin ses.verify_email_identity({ email_address: recipient }) puts "Email sent to #{recipient}" # If something goes wrong, display an error message. rescue Aws::SES::Errors::ServiceError => e puts "Email not sent. Error message: #{e}" end ``` + Per i dettagli sull'API, consulta la [VerifyEmailIdentity](https://docs.aws.amazon.com/goto/SdkForRubyV3/email-2010-12-01/VerifyEmailIdentity)sezione *AWS SDK per Ruby API Reference*. # Esempi per l’API Amazon SES v2 con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando l'API AWS SDK per Ruby with Amazon SES v2. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) ## Azioni ### `SendEmail` Il seguente esempio di codice mostra come usare`SendEmail`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/ses/v2#code-examples). ``` require 'aws-sdk-sesv2' require_relative 'config' # Recipient and sender email addresses. # Set up the SESv2 client. client = Aws::SESV2::Client.new(region: AWS_REGION) def send_email(client, sender_email, recipient_email) response = client.send_email( { from_email_address: sender_email, destination: { to_addresses: [recipient_email] }, content: { simple: { subject: { data: 'Test email subject' }, body: { text: { data: 'Test email body' } } } } } ) puts "Email sent from #{SENDER_EMAIL} to #{RECIPIENT_EMAIL} with message ID: #{response.message_id}" end send_email(client, SENDER_EMAIL, RECIPIENT_EMAIL) ``` + Per i dettagli sull'API, consulta la [SendEmail](https://docs.aws.amazon.com/goto/SdkForRubyV3/sesv2-2019-09-27/SendEmail)sezione *AWS SDK per Ruby API Reference*. # Esempi per Amazon SNS con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Amazon SNS. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) + [Esempi serverless](#serverless_examples) ## Azioni ### `CreateTopic` Il seguente esempio di codice mostra come usare`CreateTopic`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sns#code-examples). ``` # This class demonstrates how to create an Amazon Simple Notification Service (SNS) topic. class SNSTopicCreator # Initializes an SNS client. # # Utilizes the default AWS configuration for region and credentials. def initialize @sns_client = Aws::SNS::Client.new end # Attempts to create an SNS topic with the specified name. # # @param topic_name [String] The name of the SNS topic to create. # @return [Boolean] true if the topic was successfully created, false otherwise. def create_topic(topic_name) @sns_client.create_topic(name: topic_name) puts "The topic '#{topic_name}' was successfully created." true rescue Aws::SNS::Errors::ServiceError => e # Handles SNS service errors gracefully. puts "Error while creating the topic named '#{topic_name}': #{e.message}" false end end # Example usage: if $PROGRAM_NAME == __FILE__ topic_name = 'YourTopicName' # Replace with your topic name sns_topic_creator = SNSTopicCreator.new puts "Creating the topic '#{topic_name}'..." unless sns_topic_creator.create_topic(topic_name) puts 'The topic was not created. Stopping program.' exit 1 end end ``` + Per ulteriori informazioni, consulta la [Guida per sviluppatori di AWS SDK per Ruby](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/sns-example-create-topic.html). + Per i dettagli sull'API, consulta la [CreateTopic](https://docs.aws.amazon.com/goto/SdkForRubyV3/sns-2010-03-31/CreateTopic)sezione *AWS SDK per Ruby API Reference*. ### `ListSubscriptions` Il seguente esempio di codice mostra come utilizzare`ListSubscriptions`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sns#code-examples). ``` # This class demonstrates how to list subscriptions to an Amazon Simple Notification Service (SNS) topic class SnsSubscriptionLister def initialize(sns_client) @sns_client = sns_client @logger = Logger.new($stdout) end # Lists subscriptions for a given SNS topic # @param topic_arn [String] The ARN of the SNS topic # @return [Types::ListSubscriptionsResponse] subscriptions: The response object def list_subscriptions(topic_arn) @logger.info("Listing subscriptions for topic: #{topic_arn}") subscriptions = @sns_client.list_subscriptions_by_topic(topic_arn: topic_arn) subscriptions.subscriptions.each do |subscription| @logger.info("Subscription endpoint: #{subscription.endpoint}") end subscriptions rescue Aws::SNS::Errors::ServiceError => e @logger.error("Error listing subscriptions: #{e.message}") raise end end # Example usage: if $PROGRAM_NAME == __FILE__ sns_client = Aws::SNS::Client.new topic_arn = 'SNS_TOPIC_ARN' # Replace with your SNS topic ARN lister = SnsSubscriptionLister.new(sns_client) begin lister.list_subscriptions(topic_arn) rescue StandardError => e puts "Failed to list subscriptions: #{e.message}" exit 1 end end ``` + Per ulteriori informazioni, consulta la [Guida per sviluppatori di AWS SDK per Ruby](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/sns-example-show-subscriptions.html). + Per i dettagli sull'API, consulta la [ListSubscriptions](https://docs.aws.amazon.com/goto/SdkForRubyV3/sns-2010-03-31/ListSubscriptions)sezione *AWS SDK per Ruby API Reference*. ### `ListTopics` Il seguente esempio di codice mostra come utilizzare`ListTopics`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sns#code-examples). ``` require 'aws-sdk-sns' # v2: require 'aws-sdk' def list_topics?(sns_client) sns_client.topics.each do |topic| puts topic.arn rescue StandardError => e puts "Error while listing the topics: #{e.message}" end end def run_me region = 'REGION' sns_client = Aws::SNS::Resource.new(region: region) puts 'Listing the topics.' return if list_topics?(sns_client) puts 'The bucket was not created. Stopping program.' exit 1 end # Example usage: run_me if $PROGRAM_NAME == __FILE__ ``` + Per ulteriori informazioni, consulta la [Guida per sviluppatori di AWS SDK per Ruby](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/sns-example-show-topics.html). + Per i dettagli sull'API, consulta la [ListTopics](https://docs.aws.amazon.com/goto/SdkForRubyV3/sns-2010-03-31/ListTopics)sezione *AWS SDK per Ruby API Reference*. ### `Publish` Il seguente esempio di codice mostra come utilizzare`Publish`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sns#code-examples). ``` # Service class for sending messages using Amazon Simple Notification Service (SNS) class SnsMessageSender # Initializes the SnsMessageSender with an SNS client # # @param sns_client [Aws::SNS::Client] The SNS client def initialize(sns_client) @sns_client = sns_client @logger = Logger.new($stdout) end # Sends a message to a specified SNS topic # # @param topic_arn [String] The ARN of the SNS topic # @param message [String] The message to send # @return [Boolean] true if message was successfully sent, false otherwise def send_message(topic_arn, message) @sns_client.publish(topic_arn: topic_arn, message: message) @logger.info("Message sent successfully to #{topic_arn}.") true rescue Aws::SNS::Errors::ServiceError => e @logger.error("Error while sending the message: #{e.message}") false end end # Example usage: if $PROGRAM_NAME == __FILE__ topic_arn = 'SNS_TOPIC_ARN' # Should be replaced with a real topic ARN message = 'MESSAGE' # Should be replaced with the actual message content sns_client = Aws::SNS::Client.new message_sender = SnsMessageSender.new(sns_client) @logger.info('Sending message.') unless message_sender.send_message(topic_arn, message) @logger.error('Message sending failed. Stopping program.') exit 1 end end ``` + Per ulteriori informazioni, consulta la [Guida per sviluppatori di AWS SDK per Ruby](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/sns-example-send-message.html). + Per informazioni dettagliate sull’API, consulta [Pubblicazione](https://docs.aws.amazon.com/goto/SdkForRubyV3/sns-2010-03-31/Publish) nella *documentazione di riferimento dell’API AWS SDK per Ruby *. ### `SetTopicAttributes` Il seguente esempio di codice mostra come usare`SetTopicAttributes`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sns#code-examples). ``` # Service class to enable an SNS resource with a specified policy class SnsResourceEnabler # Initializes the SnsResourceEnabler with an SNS resource client # # @param sns_resource [Aws::SNS::Resource] The SNS resource client def initialize(sns_resource) @sns_resource = sns_resource @logger = Logger.new($stdout) end # Sets a policy on a specified SNS topic # # @param topic_arn [String] The ARN of the SNS topic # @param resource_arn [String] The ARN of the resource to include in the policy # @param policy_name [String] The name of the policy attribute to set def enable_resource(topic_arn, resource_arn, policy_name) policy = generate_policy(topic_arn, resource_arn) topic = @sns_resource.topic(topic_arn) topic.set_attributes({ attribute_name: policy_name, attribute_value: policy }) @logger.info("Policy #{policy_name} set successfully for topic #{topic_arn}.") rescue Aws::SNS::Errors::ServiceError => e @logger.error("Failed to set policy: #{e.message}") end private # Generates a policy string with dynamic resource ARNs # # @param topic_arn [String] The ARN of the SNS topic # @param resource_arn [String] The ARN of the resource # @return [String] The policy as a JSON string def generate_policy(topic_arn, resource_arn) { Version: '2008-10-17', Id: '__default_policy_ID', Statement: [{ Sid: '__default_statement_ID', Effect: 'Allow', Principal: { "AWS": '*' }, Action: ['SNS:Publish'], Resource: topic_arn, Condition: { ArnEquals: { "AWS:SourceArn": resource_arn } } }] }.to_json end end # Example usage: if $PROGRAM_NAME == __FILE__ topic_arn = 'MY_TOPIC_ARN' # Should be replaced with a real topic ARN resource_arn = 'MY_RESOURCE_ARN' # Should be replaced with a real resource ARN policy_name = 'POLICY_NAME' # Typically, this is "Policy" sns_resource = Aws::SNS::Resource.new enabler = SnsResourceEnabler.new(sns_resource) enabler.enable_resource(topic_arn, resource_arn, policy_name) end ``` + Per ulteriori informazioni, consulta la [Guida per sviluppatori di AWS SDK per Ruby](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/sns-example-enable-resource.html). + Per i dettagli sull'API, consulta la [SetTopicAttributes](https://docs.aws.amazon.com/goto/SdkForRubyV3/sns-2010-03-31/SetTopicAttributes)sezione *AWS SDK per Ruby API Reference*. ### `Subscribe` Il seguente esempio di codice mostra come utilizzare`Subscribe`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sns#code-examples). Sottoscrive un indirizzo e-mail a un argomento. ``` require 'aws-sdk-sns' require 'logger' # Represents a service for creating subscriptions in Amazon Simple Notification Service (SNS) class SubscriptionService # Initializes the SubscriptionService with an SNS client # # @param sns_client [Aws::SNS::Client] The SNS client def initialize(sns_client) @sns_client = sns_client @logger = Logger.new($stdout) end # Attempts to create a subscription to a topic # # @param topic_arn [String] The ARN of the SNS topic # @param protocol [String] The subscription protocol (e.g., email) # @param endpoint [String] The endpoint that receives the notifications (email address) # @return [Boolean] true if subscription was successfully created, false otherwise def create_subscription(topic_arn, protocol, endpoint) @sns_client.subscribe(topic_arn: topic_arn, protocol: protocol, endpoint: endpoint) @logger.info('Subscription created successfully.') true rescue Aws::SNS::Errors::ServiceError => e @logger.error("Error while creating the subscription: #{e.message}") false end end # Main execution if the script is run directly if $PROGRAM_NAME == __FILE__ protocol = 'email' endpoint = 'EMAIL_ADDRESS' # Should be replaced with a real email address topic_arn = 'TOPIC_ARN' # Should be replaced with a real topic ARN sns_client = Aws::SNS::Client.new subscription_service = SubscriptionService.new(sns_client) @logger.info('Creating the subscription.') unless subscription_service.create_subscription(topic_arn, protocol, endpoint) @logger.error('Subscription creation failed. Stopping program.') exit 1 end end ``` + Per ulteriori informazioni, consulta la [Guida per sviluppatori di AWS SDK per Ruby](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/sns-example-create-subscription.html). + Per informazioni dettagliate sull’API, consulta [Sottoscrizione](https://docs.aws.amazon.com/goto/SdkForRubyV3/sns-2010-03-31/Subscribe) nella *documentazione di riferimento dell’API AWS SDK per Ruby *. ## Esempi serverless ### Invocazione di una funzione Lambda da un trigger Amazon SNS L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dal ricevimento di messaggi da un argomento SNS. La funzione recupera i messaggi dal parametro dell’evento e registra il contenuto di ogni messaggio. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-sns-to-lambda). Utilizzo di un evento SNS con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 def lambda_handler(event:, context:) event['Records'].map { |record| process_message(record) } end def process_message(record) message = record['Sns']['Message'] puts("Processing message: #{message}") rescue StandardError => e puts("Error processing message: #{e}") raise end ``` # Esempi per Amazon SQS con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby con Amazon SQS. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) + [Esempi serverless](#serverless_examples) ## Azioni ### `ChangeMessageVisibility` Il seguente esempio di codice mostra come usare`ChangeMessageVisibility`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sqs#code-examples). ``` require 'aws-sdk-sqs' # v2: require 'aws-sdk' # Replace us-west-2 with the AWS Region you're using for Amazon SQS. sqs = Aws::SQS::Client.new(region: 'us-west-2') begin queue_name = 'my-queue' queue_url = sqs.get_queue_url(queue_name: queue_name).queue_url # Receive up to 10 messages receive_message_result_before = sqs.receive_message({ queue_url: queue_url, max_number_of_messages: 10 }) puts "Before attempting to change message visibility timeout: received #{receive_message_result_before.messages.count} message(s)." receive_message_result_before.messages.each do |message| sqs.change_message_visibility({ queue_url: queue_url, receipt_handle: message.receipt_handle, visibility_timeout: 30 # This message will not be visible for 30 seconds after first receipt. }) end # Try to retrieve the original messages after setting their visibility timeout. receive_message_result_after = sqs.receive_message({ queue_url: queue_url, max_number_of_messages: 10 }) puts "\nAfter attempting to change message visibility timeout: received #{receive_message_result_after.messages.count} message(s)." rescue Aws::SQS::Errors::NonExistentQueue puts "Cannot receive messages for a queue named '#{queue_name}', as it does not exist." end ``` + Per i dettagli sull'API, consulta la [ChangeMessageVisibility](https://docs.aws.amazon.com/goto/SdkForRubyV3/sqs-2012-11-05/ChangeMessageVisibility)sezione *AWS SDK per Ruby API Reference*. ### `CreateQueue` Il seguente esempio di codice mostra come utilizzare`CreateQueue`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sqs#code-examples). ``` # This code example demonstrates how to create a queue in Amazon Simple Queue Service (Amazon SQS). require 'aws-sdk-sqs' # @param sqs_client [Aws::SQS::Client] An initialized Amazon SQS client. # @param queue_name [String] The name of the queue. # @return [Boolean] true if the queue was created; otherwise, false. # @example # exit 1 unless queue_created?( # Aws::SQS::Client.new(region: 'us-west-2'), # 'my-queue' # ) def queue_created?(sqs_client, queue_name) sqs_client.create_queue(queue_name: queue_name) true rescue StandardError => e puts "Error creating queue: #{e.message}" false end # Full example call: # Replace us-west-2 with the AWS Region you're using for Amazon SQS. def run_me region = 'us-west-2' queue_name = 'my-queue' sqs_client = Aws::SQS::Client.new(region: region) puts "Creating the queue named '#{queue_name}'..." if queue_created?(sqs_client, queue_name) puts 'Queue created.' else puts 'Queue not created.' end end # Example usage: run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [CreateQueue](https://docs.aws.amazon.com/goto/SdkForRubyV3/sqs-2012-11-05/CreateQueue)sezione *AWS SDK per Ruby API Reference*. ### `DeleteQueue` Il seguente esempio di codice mostra come utilizzare`DeleteQueue`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sqs#code-examples). ``` require 'aws-sdk-sqs' # v2: require 'aws-sdk' # Replace us-west-2 with the AWS Region you're using for Amazon SQS. sqs = Aws::SQS::Client.new(region: 'us-west-2') sqs.delete_queue(queue_url: URL) ``` + Per i dettagli sull'API, consulta la [DeleteQueue](https://docs.aws.amazon.com/goto/SdkForRubyV3/sqs-2012-11-05/DeleteQueue)sezione *AWS SDK per Ruby API Reference*. ### `ListQueues` Il seguente esempio di codice mostra come utilizzare`ListQueues`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sqs#code-examples). ``` require 'aws-sdk-sqs' require 'aws-sdk-sts' # @param sqs_client [Aws::SQS::Client] An initialized Amazon SQS client. # @example # list_queue_urls(Aws::SQS::Client.new(region: 'us-west-2')) def list_queue_urls(sqs_client) queues = sqs_client.list_queues queues.queue_urls.each do |url| puts url end rescue StandardError => e puts "Error listing queue URLs: #{e.message}" end # Lists the attributes of a queue in Amazon Simple Queue Service (Amazon SQS). # # @param sqs_client [Aws::SQS::Client] An initialized Amazon SQS client. # @param queue_url [String] The URL of the queue. # @example # list_queue_attributes( # Aws::SQS::Client.new(region: 'us-west-2'), # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue' # ) def list_queue_attributes(sqs_client, queue_url) attributes = sqs_client.get_queue_attributes( queue_url: queue_url, attribute_names: ['All'] ) attributes.attributes.each do |key, value| puts "#{key}: #{value}" end rescue StandardError => e puts "Error getting queue attributes: #{e.message}" end # Full example call: # Replace us-west-2 with the AWS Region you're using for Amazon SQS. def run_me region = 'us-west-2' queue_name = 'my-queue' sqs_client = Aws::SQS::Client.new(region: region) puts 'Listing available queue URLs...' list_queue_urls(sqs_client) sts_client = Aws::STS::Client.new(region: region) # For example: # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue' queue_url = "https://sqs.#{region}.amazonaws.com/#{sts_client.get_caller_identity.account}/#{queue_name}" puts "\nGetting information about queue '#{queue_name}'..." list_queue_attributes(sqs_client, queue_url) end ``` + Per i dettagli sull'API, consulta la [ListQueues](https://docs.aws.amazon.com/goto/SdkForRubyV3/sqs-2012-11-05/ListQueues)sezione *AWS SDK per Ruby API Reference*. ### `ReceiveMessage` Il seguente esempio di codice mostra come utilizzare`ReceiveMessage`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sqs#code-examples). ``` require 'aws-sdk-sqs' require 'aws-sdk-sts' # Receives messages in a queue in Amazon Simple Queue Service (Amazon SQS). # # @param sqs_client [Aws::SQS::Client] An initialized Amazon SQS client. # @param queue_url [String] The URL of the queue. # @param max_number_of_messages [Integer] The maximum number of messages # to receive. This number must be 10 or less. The default is 10. # @example # receive_messages( # Aws::SQS::Client.new(region: 'us-west-2'), # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue', # 10 # ) def receive_messages(sqs_client, queue_url, max_number_of_messages = 10) if max_number_of_messages > 10 puts 'Maximum number of messages to receive must be 10 or less. ' \ 'Stopping program.' return end response = sqs_client.receive_message( queue_url: queue_url, max_number_of_messages: max_number_of_messages ) if response.messages.count.zero? puts 'No messages to receive, or all messages have already ' \ 'been previously received.' return end response.messages.each do |message| puts '-' * 20 puts "Message body: #{message.body}" puts "Message ID: #{message.message_id}" end rescue StandardError => e puts "Error receiving messages: #{e.message}" end # Full example call: # Replace us-west-2 with the AWS Region you're using for Amazon SQS. def run_me region = 'us-west-2' queue_name = 'my-queue' max_number_of_messages = 10 sts_client = Aws::STS::Client.new(region: region) # For example: # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue' queue_url = "https://sqs.#{region}.amazonaws.com/#{sts_client.get_caller_identity.account}/#{queue_name}" sqs_client = Aws::SQS::Client.new(region: region) puts "Receiving messages from queue '#{queue_name}'..." receive_messages(sqs_client, queue_url, max_number_of_messages) end # Example usage: run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [ReceiveMessage](https://docs.aws.amazon.com/goto/SdkForRubyV3/sqs-2012-11-05/ReceiveMessage)sezione *AWS SDK per Ruby API Reference*. ### `SendMessage` Il seguente esempio di codice mostra come utilizzare`SendMessage`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sqs#code-examples). ``` require 'aws-sdk-sqs' require 'aws-sdk-sts' # @param sqs_client [Aws::SQS::Client] An initialized Amazon SQS client. # @param queue_url [String] The URL of the queue. # @param message_body [String] The contents of the message to be sent. # @return [Boolean] true if the message was sent; otherwise, false. # @example # exit 1 unless message_sent?( # Aws::SQS::Client.new(region: 'us-west-2'), # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue', # 'This is my message.' # ) def message_sent?(sqs_client, queue_url, message_body) sqs_client.send_message( queue_url: queue_url, message_body: message_body ) true rescue StandardError => e puts "Error sending message: #{e.message}" false end # Full example call: # Replace us-west-2 with the AWS Region you're using for Amazon SQS. def run_me region = 'us-west-2' queue_name = 'my-queue' message_body = 'This is my message.' sts_client = Aws::STS::Client.new(region: region) # For example: # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue' queue_url = "https://sqs.#{region}.amazonaws.com/#{sts_client.get_caller_identity.account}/#{queue_name}" sqs_client = Aws::SQS::Client.new(region: region) puts "Sending a message to the queue named '#{queue_name}'..." if message_sent?(sqs_client, queue_url, message_body) puts 'Message sent.' else puts 'Message not sent.' end end # Example usage: run_me if $PROGRAM_NAME == __FILE__ ``` + Per i dettagli sull'API, consulta la [SendMessage](https://docs.aws.amazon.com/goto/SdkForRubyV3/sqs-2012-11-05/SendMessage)sezione *AWS SDK per Ruby API Reference*. ### `SendMessageBatch` Il seguente esempio di codice mostra come utilizzare`SendMessageBatch`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/sqs#code-examples). ``` require 'aws-sdk-sqs' require 'aws-sdk-sts' # # @param sqs_client [Aws::SQS::Client] An initialized Amazon SQS client. # @param queue_url [String] The URL of the queue. # @param entries [Hash] The contents of the messages to be sent, # in the correct format. # @return [Boolean] true if the messages were sent; otherwise, false. # @example # exit 1 unless messages_sent?( # Aws::SQS::Client.new(region: 'us-west-2'), # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue', # [ # { # id: 'Message1', # message_body: 'This is the first message.' # }, # { # id: 'Message2', # message_body: 'This is the second message.' # } # ] # ) def messages_sent?(sqs_client, queue_url, entries) sqs_client.send_message_batch( queue_url: queue_url, entries: entries ) true rescue StandardError => e puts "Error sending messages: #{e.message}" false end # Full example call: # Replace us-west-2 with the AWS Region you're using for Amazon SQS. def run_me region = 'us-west-2' queue_name = 'my-queue' entries = [ { id: 'Message1', message_body: 'This is the first message.' }, { id: 'Message2', message_body: 'This is the second message.' } ] sts_client = Aws::STS::Client.new(region: region) # For example: # 'https://sqs.us-west-2.amazonaws.com/111111111111/my-queue' queue_url = "https://sqs.#{region}.amazonaws.com/#{sts_client.get_caller_identity.account}/#{queue_name}" sqs_client = Aws::SQS::Client.new(region: region) puts "Sending messages to the queue named '#{queue_name}'..." if messages_sent?(sqs_client, queue_url, entries) puts 'Messages sent.' else puts 'Messages not sent.' end end ``` + Per i dettagli sull'API, consulta la [SendMessageBatch](https://docs.aws.amazon.com/goto/SdkForRubyV3/sqs-2012-11-05/SendMessageBatch)sezione *AWS SDK per Ruby API Reference*. ## Esempi serverless ### Invocazione di una funzione Lambda da un trigger Amazon SQS L’esempio di codice seguente mostra come implementare una funzione Lambda che riceve un evento attivato dalla ricezione di messaggi da una coda SQS. La funzione recupera i messaggi dal parametro dell’evento e registra il contenuto di ogni messaggio. **SDK per Ruby** C'è altro su GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-sqs-to-lambda). Utilizzo di un evento SQS con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 def lambda_handler(event:, context:) event['Records'].each do |message| process_message(message) end puts "done" end def process_message(message) begin puts "Processed message #{message['body']}" # TODO: Do interesting work based on the new message rescue StandardError => err puts "An error occurred" raise err end end ``` ### Segnalazione di errori di elementi batch per funzioni Lambda con un trigger Amazon SQS L’esempio di codice seguente mostra come implementare una risposta batch parziale per funzioni Lambda che ricevono eventi da una coda SQS. La funzione riporta gli errori degli elementi batch nella risposta, segnalando a Lambda di riprovare tali messaggi in un secondo momento. **SDK per Ruby** C'è dell'altro GitHub. Trova l’esempio completo e scopri come eseguire la configurazione e l’esecuzione nel repository di [Esempi serverless](https://github.com/aws-samples/serverless-snippets/tree/main/integration-sqs-to-lambda-with-batch-item-handling). Segnalazione di errori di elementi batch di SQS con Lambda tramite Ruby. ``` # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'json' def lambda_handler(event:, context:) if event batch_item_failures = [] sqs_batch_response = {} event["Records"].each do |record| begin # process message rescue StandardError => e batch_item_failures << {"itemIdentifier" => record['messageId']} end end sqs_batch_response["batchItemFailures"] = batch_item_failures return sqs_batch_response end end ``` # AWS STS esempi che utilizzano SDK for Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando AWS SDK per Ruby with AWS STS. Le *azioni* sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le azioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati. Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Azioni](#actions) ## Azioni ### `AssumeRole` Il seguente esempio di codice mostra come utilizzare`AssumeRole`. **SDK per Ruby** C'è altro da fare GitHub. Trova l'esempio completo e scopri di più sulla configurazione e l'esecuzione nel [Repository di esempi di codice AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/iam#code-examples). ``` # Creates an AWS Security Token Service (AWS STS) client with specified credentials. # This is separated into a factory function so that it can be mocked for unit testing. # # @param key_id [String] The ID of the access key used by the STS client. # @param key_secret [String] The secret part of the access key used by the STS client. def create_sts_client(key_id, key_secret) Aws::STS::Client.new(access_key_id: key_id, secret_access_key: key_secret) end # Gets temporary credentials that can be used to assume a role. # # @param role_arn [String] The ARN of the role that is assumed when these credentials # are used. # @param sts_client [AWS::STS::Client] An AWS STS client. # @return [Aws::AssumeRoleCredentials] The credentials that can be used to assume the role. def assume_role(role_arn, sts_client) credentials = Aws::AssumeRoleCredentials.new( client: sts_client, role_arn: role_arn, role_session_name: 'create-use-assume-role-scenario' ) @logger.info("Assumed role '#{role_arn}', got temporary credentials.") credentials end ``` + Per i dettagli sull'API, consulta la [AssumeRole](https://docs.aws.amazon.com/goto/SdkForRubyV3/sts-2011-06-15/AssumeRole)sezione *AWS SDK per Ruby API Reference*. # Esempi per Amazon Textract con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon Textract. AWS SDK per Ruby *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, dove è possibile trovare le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Scenari](#scenarios) ## Scenari ### Crea un’applicazione per analizzare il feedback dei clienti L’esempio di codice seguente mostra come creare un’applicazione che analizza le schede dei commenti dei clienti, le traduce dalla loro lingua originale, ne determina il sentiment e genera un file audio dal testo tradotto. **SDK per Ruby** Questa applicazione di esempio analizza e archivia le schede di feedback dei clienti. In particolare, soddisfa l’esigenza di un hotel fittizio a New York City. L’hotel riceve feedback dagli ospiti in varie lingue sotto forma di schede di commento fisiche. Tale feedback viene caricato nell’app tramite un client Web. Dopo aver caricato l’immagine di una scheda di commento, vengono eseguiti i seguenti passaggi: + Il testo viene estratto dall’immagine utilizzando Amazon Textract. + Amazon Comprehend determina il sentiment del testo estratto e la sua lingua. + Il testo estratto viene tradotto in inglese utilizzando Amazon Translate. + Amazon Polly sintetizza un file audio dal testo estratto. L’app completa può essere implementata con  AWS CDK. Per il codice sorgente e le istruzioni di distribuzione, consulta il progetto in [ GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/cross_service_examples/feedback_sentiment_analyzer). **Servizi utilizzati in questo esempio** + Amazon Comprehend + Lambda + Amazon Polly + Amazon Textract + Amazon Translate # Esempi per Amazon Translate con SDK per Ruby I seguenti esempi di codice mostrano come eseguire azioni e implementare scenari comuni utilizzando Amazon Translate. AWS SDK per Ruby *Scenari*: esempi di codice che mostrano come eseguire un’attività specifica chiamando più funzioni all’interno dello stesso servizio o combinate con altri Servizi AWS. Ogni esempio include un link al codice sorgente completo, dove è possibile trovare le istruzioni su come configurare ed eseguire il codice nel contesto. **Topics** + [Scenari](#scenarios) ## Scenari ### Crea un’applicazione per analizzare il feedback dei clienti L’esempio di codice seguente mostra come creare un’applicazione che analizza le schede dei commenti dei clienti, le traduce dalla loro lingua originale, ne determina il sentiment e genera un file audio dal testo tradotto. **SDK per Ruby** Questa applicazione di esempio analizza e archivia le schede di feedback dei clienti. In particolare, soddisfa l’esigenza di un hotel fittizio a New York City. L’hotel riceve feedback dagli ospiti in varie lingue sotto forma di schede di commento fisiche. Tale feedback viene caricato nell’app tramite un client Web. Dopo aver caricato l’immagine di una scheda di commento, vengono eseguiti i seguenti passaggi: + Il testo viene estratto dall’immagine utilizzando Amazon Textract. + Amazon Comprehend determina il sentiment del testo estratto e la sua lingua. + Il testo estratto viene tradotto in inglese utilizzando Amazon Translate. + Amazon Polly sintetizza un file audio dal testo estratto. L’app completa può essere implementata con  AWS CDK. Per il codice sorgente e le istruzioni di distribuzione, consulta il progetto in [ GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/cross_service_examples/feedback_sentiment_analyzer). **Servizi utilizzati in questo esempio** + Amazon Comprehend + Lambda + Amazon Polly + Amazon Textract + Amazon Translate