ParameterGroup

class aws_cdk.aws_rds.ParameterGroup(scope, id, *, engine, description=None, name=None, parameters=None, removal_policy=None)

Bases: Resource

A parameter group.

Represents both a cluster parameter group, and an instance parameter group.

Resource:: AWS::RDS::DBParameterGroup
ExampleMetadata:: infused

Example:

# plan: backup.BackupPlan
# vpc: ec2.Vpc

my_table = dynamodb.Table.from_table_name(self, "Table", "myTableName")
my_database_instance = rds.DatabaseInstance(self, "DatabaseInstance",
    engine=rds.DatabaseInstanceEngine.mysql(version=rds.MysqlEngineVersion.VER_8_0_26),
    vpc=vpc
)
my_database_cluster = rds.DatabaseCluster(self, "DatabaseCluster",
    engine=rds.DatabaseClusterEngine.aurora_mysql(version=rds.AuroraMysqlEngineVersion.VER_2_08_1),
    credentials=rds.Credentials.from_generated_secret("clusteradmin"),
    instance_props=rds.InstanceProps(
        vpc=vpc
    )
)
my_serverless_cluster = rds.ServerlessCluster(self, "ServerlessCluster",
    engine=rds.DatabaseClusterEngine.AURORA_POSTGRESQL,
    parameter_group=rds.ParameterGroup.from_parameter_group_name(self, "ParameterGroup", "default.aurora-postgresql11"),
    vpc=vpc
)
my_cool_construct = Construct(self, "MyCoolConstruct")

plan.add_selection("Selection",
    resources=[
        backup.BackupResource.from_dynamo_db_table(my_table),  # A DynamoDB table
        backup.BackupResource.from_rds_database_instance(my_database_instance),  # A RDS instance
        backup.BackupResource.from_rds_database_cluster(my_database_cluster),  # A RDS database cluster
        backup.BackupResource.from_rds_serverless_cluster(my_serverless_cluster),  # An Aurora Serverless cluster
        backup.BackupResource.from_tag("stage", "prod"),  # All resources that are tagged stage=prod in the region/account
        backup.BackupResource.from_construct(my_cool_construct)
    ]
)

Parameters:

scope (Construct) –
id (str) –
engine (IEngine) – The database engine for this parameter group.
description (Optional[str]) – Description for this parameter group. Default: a CDK generated description
name (Optional[str]) – The name of this parameter group. Default: - CloudFormation-generated name
parameters (Optional[Mapping[str, str]]) – The parameters in this parameter group. Default: - None
removal_policy (Optional[RemovalPolicy]) – The CloudFormation policy to apply when the instance is removed from the stack or replaced during an update. Default: - RemovalPolicy.DESTROY

Methods

add_parameter(key, value)

Add a parameter to this parameter group.

Parameters:

key (str) – The key of the parameter to be added.
value (str) – The value of the parameter to be added.

Return type:

bool

apply_removal_policy(policy)

Apply the given removal policy to this resource.

The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you’ve removed it from the CDK application or because you’ve made a change that requires the resource to be replaced.

The resource can be deleted (RemovalPolicy.DESTROY), or left in your AWS account for data recovery and cleanup later (RemovalPolicy.RETAIN).

Parameters:

policy (RemovalPolicy) –

Return type:

None

bind_to_cluster()

Method called when this Parameter Group is used when defining a database cluster.

Return type:: ParameterGroupClusterConfig

bind_to_instance()

Method called when this Parameter Group is used when defining a database instance.

Return type:: ParameterGroupInstanceConfig

to_string()

Returns a string representation of this construct.

Return type:: str

Attributes

env

The environment this resource belongs to.

For resources that are created and managed by the CDK (generally, those created by creating new class instances like Role, Bucket, etc.), this is always the same as the environment of the stack they belong to; however, for imported resources (those obtained from static methods like fromRoleArn, fromBucketName, etc.), that might be different than the stack they were imported into.

node: The tree node.

stack: The stack in which this resource is defined.

Static Methods

classmethod from_parameter_group_name(scope, id, parameter_group_name)

Imports a parameter group.

Parameters:

scope (Construct) –
id (str) –
parameter_group_name (str) –

Return type:

IParameterGroup

classmethod is_construct(x)

Checks if x is a construct.

Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.

Parameters:: x (Any) – Any object.
Return type:: bool
Returns:: true if x is an object created from a class which extends Construct.

classmethod is_owned_resource(construct)

Returns true if the construct was created by CDK, and false otherwise.

Parameters:

construct (IConstruct) –

Return type:

bool

classmethod is_resource(construct)

Check whether the given construct is a Resource.

Parameters:

construct (IConstruct) –

Return type:

bool