StartInstances 搭配 a AWS SDK 或 CLI 使用 - Amazon Elastic Compute Cloud

本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。

StartInstances 搭配 a AWS SDK 或 CLI 使用

下列程式碼範例示範如何使用 StartInstances

動作範例是大型程式的程式碼摘錄,必須在內容中執行。您可以在下列程式碼範例的內容中看到此動作:

.NET
AWS SDK for .NET
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

/// <summary> /// Start an EC2 instance. /// </summary> /// <param name="ec2InstanceId">The instance Id of the Amazon EC2 instance /// to start.</param> /// <returns>Async task.</returns> public async Task StartInstances(string ec2InstanceId) { try { var request = new StartInstancesRequest { InstanceIds = new List<string> { ec2InstanceId }, }; await _amazonEC2.StartInstancesAsync(request); Console.Write("Waiting for instance to start. "); await WaitForInstanceState(ec2InstanceId, InstanceStateName.Running); } catch (AmazonEC2Exception ec2Exception) { if (ec2Exception.ErrorCode == "InvalidInstanceId") { _logger.LogError( $"InstanceId is invalid, unable to start. {ec2Exception.Message}"); } throw; } catch (Exception ex) { _logger.LogError( $"An error occurred while starting the instance.: {ex.Message}"); throw; } } /// <summary> /// Wait until an EC2 instance is in a specified state. /// </summary> /// <param name="instanceId">The instance Id.</param> /// <param name="stateName">The state to wait for.</param> /// <returns>A Boolean value indicating the success of the action.</returns> public async Task<bool> WaitForInstanceState(string instanceId, InstanceStateName stateName) { var request = new DescribeInstancesRequest { InstanceIds = new List<string> { instanceId } }; // Wait until the instance is in the specified state. var hasState = false; do { // Wait 5 seconds. Thread.Sleep(5000); // Check for the desired state. var response = await _amazonEC2.DescribeInstancesAsync(request); var instance = response.Reservations[0].Instances[0]; hasState = instance.State.Name == stateName; Console.Write(". "); } while (!hasState); return hasState; }
  • 如需 API 詳細資訊,請參閱 StartInstances AWS SDK for .NET 參考中的 API

Bash
AWS CLI 使用 Bash 指令碼
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

############################################################################### # function ec2_start_instances # # This function starts one or more Amazon Elastic Compute Cloud (Amazon EC2) instances. # # Parameters: # -i instance_id - The ID(s) of the instance(s) to start (comma-separated). # -h - Display help. # # Returns: # 0 - If successful. # 1 - If it fails. ############################################################################### function ec2_start_instances() { local instance_ids local option OPTARG # Required to use getopts command in a function. # bashsupport disable=BP5008 function usage() { echo "function ec2_start_instances" echo "Starts one or more Amazon Elastic Compute Cloud (Amazon EC2) instances." echo " -i instance_id - The ID(s) of the instance(s) to start (comma-separated)." echo " -h - Display help." echo "" } # Retrieve the calling parameters. while getopts "i:h" option; do case "${option}" in i) instance_ids="${OPTARG}" ;; h) usage return 0 ;; \?) echo "Invalid parameter" usage return 1 ;; esac done export OPTIND=1 if [[ -z "$instance_ids" ]]; then errecho "ERROR: You must provide one or more instance IDs with the -i parameter." usage return 1 fi response=$(aws ec2 start-instances \ --instance-ids "${instance_ids}") || { aws_cli_error_log ${?} errecho "ERROR: AWS reports start-instances operation failed with $response." return 1 } return 0 }

此範例中使用的公用程式函數。

############################################################################### # function errecho # # This function outputs everything sent to it to STDERR (standard error output). ############################################################################### function errecho() { printf "%s\n" "$*" 1>&2 } ############################################################################## # function aws_cli_error_log() # # This function is used to log the error messages from the AWS CLI. # # The function expects the following argument: # $1 - The error code returned by the AWS CLI. # # Returns: # 0: - Success. # ############################################################################## function aws_cli_error_log() { local err_code=$1 errecho "Error code : $err_code" if [ "$err_code" == 1 ]; then errecho " One or more S3 transfers failed." elif [ "$err_code" == 2 ]; then errecho " Command line failed to parse." elif [ "$err_code" == 130 ]; then errecho " Process received SIGINT." elif [ "$err_code" == 252 ]; then errecho " Command syntax invalid." elif [ "$err_code" == 253 ]; then errecho " The system environment or configuration was invalid." elif [ "$err_code" == 254 ]; then errecho " The service returned an error." elif [ "$err_code" == 255 ]; then errecho " 255 is a catch-all error." fi return 0 }
  • 如需 API 詳細資訊,請參閱 AWS CLI 命令參考中的 StartInstances

C++
C++ 的 SDK
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

//! Start an Amazon Elastic Compute Cloud (Amazon EC2) instance. /*! \param instanceID: An EC2 instance ID. \param clientConfiguration: AWS client configuration. \return bool: Function succeeded. */ bool AwsDoc::EC2::startInstance(const Aws::String &instanceId, const Aws::Client::ClientConfiguration &clientConfiguration) { Aws::EC2::EC2Client ec2Client(clientConfiguration); Aws::EC2::Model::StartInstancesRequest startRequest; startRequest.AddInstanceIds(instanceId); startRequest.SetDryRun(true); Aws::EC2::Model::StartInstancesOutcome dryRunOutcome = ec2Client.StartInstances(startRequest); if (dryRunOutcome.IsSuccess()) { std::cerr << "Failed dry run to start instance. A dry run should trigger an error." << std::endl; return false; } else if (dryRunOutcome.GetError().GetErrorType() != Aws::EC2::EC2Errors::DRY_RUN_OPERATION) { std::cout << "Failed dry run to start instance " << instanceId << ": " << dryRunOutcome.GetError().GetMessage() << std::endl; return false; } startRequest.SetDryRun(false); Aws::EC2::Model::StartInstancesOutcome startInstancesOutcome = ec2Client.StartInstances(startRequest); if (!startInstancesOutcome.IsSuccess()) { std::cout << "Failed to start instance " << instanceId << ": " << startInstancesOutcome.GetError().GetMessage() << std::endl; } else { std::cout << "Successfully started instance " << instanceId << std::endl; } return startInstancesOutcome.IsSuccess(); }
  • 如需 API 詳細資訊,請參閱 StartInstances AWS SDK for C++ 參考中的 API

CLI
AWS CLI

若要啟動 Amazon EC2 執行個體

此範例會啟動指定的 Amazon EBS 後端執行個體。

命令:

aws ec2 start-instances --instance-ids i-1234567890abcdef0

輸出:

{ "StartingInstances": [ { "InstanceId": "i-1234567890abcdef0", "CurrentState": { "Code": 0, "Name": "pending" }, "PreviousState": { "Code": 80, "Name": "stopped" } } ] }

如需詳細資訊,請參閱《Amazon Elastic Compute Cloud 使用者指南》中的「停止和啟動執行個體」。

  • 如需 API 詳細資訊,請參閱 AWS CLI 命令參考中的 StartInstances

Java
Java 2.x 的 SDK
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

/** * Starts an Amazon EC2 instance asynchronously and waits until it is in the "running" state. * * @param instanceId the ID of the instance to start * @return a {@link CompletableFuture} that completes when the instance has been started and is in the "running" state, or exceptionally if an error occurs */ public CompletableFuture<Void> startInstanceAsync(String instanceId) { StartInstancesRequest startRequest = StartInstancesRequest.builder() .instanceIds(instanceId) .build(); Ec2AsyncWaiter ec2Waiter = Ec2AsyncWaiter.builder() .client(getAsyncClient()) .build(); DescribeInstancesRequest describeRequest = DescribeInstancesRequest.builder() .instanceIds(instanceId) .build(); logger.info("Starting instance " + instanceId + " and waiting for it to run."); CompletableFuture<Void> resultFuture = new CompletableFuture<>(); return getAsyncClient().startInstances(startRequest) .thenCompose(response -> ec2Waiter.waitUntilInstanceRunning(describeRequest) ) .thenAccept(waiterResponse -> { logger.info("Successfully started instance " + instanceId); resultFuture.complete(null); }) .exceptionally(throwable -> { resultFuture.completeExceptionally(new RuntimeException("Failed to start instance: " + throwable.getMessage(), throwable)); return null; }); }
  • 如需 API 詳細資訊,請參閱 StartInstances AWS SDK for Java 2.x 參考中的 API

JavaScript
SDK for JavaScript (v3)
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

import { EC2Client, StartInstancesCommand } from "@aws-sdk/client-ec2"; import { fileURLToPath } from "node:url"; import { parseArgs } from "node:util"; /** * Starts an Amazon EBS-backed instance that you've previously stopped. * @param {{ instanceIds }} options */ export const main = async ({ instanceIds }) => { const client = new EC2Client({}); const command = new StartInstancesCommand({ InstanceIds: instanceIds, }); try { const { StartingInstances } = await client.send(command); const instanceIdList = StartingInstances.map( (instance) => ` • ${instance.InstanceId}`, ); console.log("Starting instances:"); console.log(instanceIdList.join("\n")); } catch (caught) { if ( caught instanceof Error && caught.name === "InvalidInstanceID.NotFound" ) { console.warn(`${caught.message}`); } else { throw caught; } } };
  • 如需 API 詳細資訊,請參閱 StartInstances AWS SDK for JavaScript 參考中的 API

Kotlin
Kotlin 的 SDK
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

suspend fun startInstanceSc(instanceId: String) { val request = StartInstancesRequest { instanceIds = listOf(instanceId) } Ec2Client { region = "us-west-2" }.use { ec2 -> ec2.startInstances(request) println("Waiting until instance $instanceId starts. This will take a few minutes.") ec2.waitUntilInstanceRunning { // suspend call instanceIds = listOf(instanceId) } println("Successfully started instance $instanceId") } }
  • 如需 API 詳細資訊,請參閱 StartInstances AWS for Kotlin SDK 參考中的 API

PowerShell
for PowerShell 工具

範例 1:此範例會啟動指定的執行個體。

Start-EC2Instance -InstanceId i-12345678

輸出:

CurrentState InstanceId PreviousState ------------ ---------- ------------- Amazon.EC2.Model.InstanceState i-12345678 Amazon.EC2.Model.InstanceState

範例 2:此範例會啟動指定的執行個體。

@("i-12345678", "i-76543210") | Start-EC2Instance

範例 3:此範例會啟動目前停止的一組執行個體。Get-EC2Instance 傳回的執行個體物件會輸送至 Start-EC2Instance。此範例使用的語法需要 PowerShell 第 3 版或更高版本。

(Get-EC2Instance -Filter @{ Name="instance-state-name"; Values="stopped"}).Instances | Start-EC2Instance

範例 4:使用 PowerShell 第 2 版,您必須使用 New-Object 為篩選條件參數建立篩選條件。

$filter = New-Object Amazon.EC2.Model.Filter $filter.Name = "instance-state-name" $filter.Values = "stopped" (Get-EC2Instance -Filter $filter).Instances | Start-EC2Instance
  • 如需 API 詳細資訊,請參閱 AWS Tools for PowerShell Cmdlet 參考中的 StartInstances

Python
Python 的 SDK (Boto3)
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

class EC2InstanceWrapper: """Encapsulates Amazon Elastic Compute Cloud (Amazon EC2) instance actions using the client interface.""" def __init__( self, ec2_client: Any, instances: Optional[List[Dict[str, Any]]] = None ) -> None: """ Initializes the EC2InstanceWrapper with an EC2 client and optional instances. :param ec2_client: A Boto3 Amazon EC2 client. This client provides low-level access to AWS EC2 services. :param instances: A list of dictionaries representing Boto3 Instance objects. These are high-level objects that wrap instance actions. """ self.ec2_client = ec2_client self.instances = instances or [] @classmethod def from_client(cls) -> "EC2InstanceWrapper": """ Creates an EC2InstanceWrapper instance with a default EC2 client. :return: An instance of EC2InstanceWrapper initialized with the default EC2 client. """ ec2_client = boto3.client("ec2") return cls(ec2_client) def start(self) -> Optional[Dict[str, Any]]: """ Starts instances and waits for them to be in a running state. :return: The response to the start request. """ if not self.instances: logger.info("No instances to start.") return None instance_ids = [instance["InstanceId"] for instance in self.instances] try: start_response = self.ec2_client.start_instances(InstanceIds=instance_ids) waiter = self.ec2_client.get_waiter("instance_running") waiter.wait(InstanceIds=instance_ids) return start_response except ClientError as err: logger.error( f"Failed to start instance(s): {','.join(map(str, instance_ids))}" ) error_code = err.response["Error"]["Code"] if error_code == "IncorrectInstanceState": logger.error( "Couldn't start instance(s) because they are in an incorrect state. " "Ensure the instances are in a stopped state before starting them." ) raise
  • 如需 API 詳細資訊,請參閱 StartInstances AWS SDK for Python (Boto3) Word 參考中的 API

Ruby
Ruby 的 SDK
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

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__
  • 如需 API 詳細資訊,請參閱 StartInstances AWS SDK for Ruby 參考中的 API

Rust
Rust 的 SDK
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

依執行個體 ID 啟動 EC2 執行個體。

pub async fn start_instance(&self, instance_id: &str) -> Result<(), EC2Error> { tracing::info!("Starting instance {instance_id}"); self.client .start_instances() .instance_ids(instance_id) .send() .await?; tracing::info!("Started instance."); Ok(()) }

使用 Waiters API,等待執行個體處於就緒狀態和狀態良好狀態。使用 Waiters API 需要在 rust 檔案中使用 `use aws_sdk_ec2::client::Waiters`。

/// Wait for an instance to be ready and status ok (default wait 60 seconds) pub async fn wait_for_instance_ready( &self, instance_id: &str, duration: Option<Duration>, ) -> Result<(), EC2Error> { self.client .wait_until_instance_status_ok() .instance_ids(instance_id) .wait(duration.unwrap_or(Duration::from_secs(60))) .await .map_err(|err| match err { WaiterError::ExceededMaxWait(exceeded) => EC2Error(format!( "Exceeded max time ({}s) waiting for instance to start.", exceeded.max_wait().as_secs() )), _ => EC2Error::from(err), })?; Ok(()) }
  • 如需 API 詳細資訊,請參閱 StartInstances AWS for Rust SDK 參考中的 API

SAP ABAP
SDK for SAP ABAP
注意

還有更多 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

DATA lt_instance_ids TYPE /aws1/cl_ec2instidstringlist_w=>tt_instanceidstringlist. APPEND NEW /aws1/cl_ec2instidstringlist_w( iv_value = iv_instance_id ) TO lt_instance_ids. "Perform dry run" TRY. " DryRun is set to true. This checks for the required permissions to start the instance without actually making the request. " lo_ec2->startinstances( it_instanceids = lt_instance_ids iv_dryrun = abap_true ). CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception). " If the error code returned is `DryRunOperation`, then you have the required permissions to start this instance. " IF lo_exception->av_err_code = 'DryRunOperation'. MESSAGE 'Dry run to start instance completed.' TYPE 'I'. " DryRun is set to false to start instance. " oo_result = lo_ec2->startinstances( " oo_result is returned for testing purposes. " it_instanceids = lt_instance_ids iv_dryrun = abap_false ). MESSAGE 'Successfully started the EC2 instance.' TYPE 'I'. " If the error code returned is `UnauthorizedOperation`, then you don't have the required permissions to start this instance. " ELSEIF lo_exception->av_err_code = 'UnauthorizedOperation'. MESSAGE 'Dry run to start instance failed. User does not have permissions to start the instance.' TYPE 'E'. ELSE. DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|. MESSAGE lv_error TYPE 'E'. ENDIF. ENDTRY.
  • 如需 API 詳細資訊,請參閱 StartInstances for Word Word 參考中的 Word。 AWS SDK SAP ABAP API

如需 AWS SDK 開發人員指南和程式碼範例的完整清單,請參閱 使用 建立 Amazon EC2 資源 AWS SDK。本主題也包含有關入門的資訊,以及先前 SDK 版本的詳細資訊。