CfnCluster

class aws_cdk.aws_memorydb.CfnCluster(scope, id, *, acl_name, cluster_name, node_type, auto_minor_version_upgrade=None, cluster_endpoint=None, data_tiering=None, description=None, engine_version=None, final_snapshot_name=None, kms_key_id=None, maintenance_window=None, num_replicas_per_shard=None, num_shards=None, parameter_group_name=None, port=None, security_group_ids=None, snapshot_arns=None, snapshot_name=None, snapshot_retention_limit=None, snapshot_window=None, sns_topic_arn=None, sns_topic_status=None, subnet_group_name=None, tags=None, tls_enabled=None)

Bases: CfnResource

A CloudFormation AWS::MemoryDB::Cluster.

Specifies a cluster . All nodes in the cluster run the same protocol-compliant engine software.

CloudformationResource

AWS::MemoryDB::Cluster

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html

ExampleMetadata

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_memorydb as memorydb

cfn_cluster = memorydb.CfnCluster(self, "MyCfnCluster",
    acl_name="aclName",
    cluster_name="clusterName",
    node_type="nodeType",

    # the properties below are optional
    auto_minor_version_upgrade=False,
    cluster_endpoint=memorydb.CfnCluster.EndpointProperty(
        address="address",
        port=123
    ),
    data_tiering="dataTiering",
    description="description",
    engine_version="engineVersion",
    final_snapshot_name="finalSnapshotName",
    kms_key_id="kmsKeyId",
    maintenance_window="maintenanceWindow",
    num_replicas_per_shard=123,
    num_shards=123,
    parameter_group_name="parameterGroupName",
    port=123,
    security_group_ids=["securityGroupIds"],
    snapshot_arns=["snapshotArns"],
    snapshot_name="snapshotName",
    snapshot_retention_limit=123,
    snapshot_window="snapshotWindow",
    sns_topic_arn="snsTopicArn",
    sns_topic_status="snsTopicStatus",
    subnet_group_name="subnetGroupName",
    tags=[CfnTag(
        key="key",
        value="value"
    )],
    tls_enabled=False
)

Create a new AWS::MemoryDB::Cluster.

Parameters
  • scope (Construct) –

    • scope in which this resource is defined.

  • id (str) –

    • scoped id of the resource.

  • acl_name (str) – The name of the Access Control List to associate with the cluster .

  • cluster_name (str) – The name of the cluster .

  • node_type (str) – The cluster ‘s node type.

  • auto_minor_version_upgrade (Union[bool, IResolvable, None]) – When set to true, the cluster will automatically receive minor engine version upgrades after launch.

  • cluster_endpoint (Union[EndpointProperty, Dict[str, Any], IResolvable, None]) – The cluster ‘s configuration endpoint.

  • data_tiering (Optional[str]) – Enables data tiering. Data tiering is only supported for replication groups using the r6gd node type. This parameter must be set to true when using r6gd nodes. For more information, see Data tiering .

  • description (Optional[str]) – A description of the cluster .

  • engine_version (Optional[str]) – The Redis engine version used by the cluster .

  • final_snapshot_name (Optional[str]) – The user-supplied name of a final cluster snapshot. This is the unique name that identifies the snapshot. MemoryDB creates the snapshot, and then deletes the cluster immediately afterward.

  • kms_key_id (Optional[str]) – The ID of the KMS key used to encrypt the cluster .

  • maintenance_window (Optional[str]) – Specifies the weekly time range during which maintenance on the cluster is performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period. Pattern : ddd:hh24:mi-ddd:hh24:mi

  • num_replicas_per_shard (Union[int, float, None]) – The number of replicas to apply to each shard. Default value : 1 Maximum value : 5

  • num_shards (Union[int, float, None]) – The number of shards in the cluster .

  • parameter_group_name (Optional[str]) – The name of the parameter group used by the cluster .

  • port (Union[int, float, None]) – The port used by the cluster .

  • security_group_ids (Optional[Sequence[str]]) – A list of security group names to associate with this cluster .

  • snapshot_arns (Optional[Sequence[str]]) – A list of Amazon Resource Names (ARN) that uniquely identify the RDB snapshot files stored in Amazon S3. The snapshot files are used to populate the new cluster . The Amazon S3 object name in the ARN cannot contain any commas.

  • snapshot_name (Optional[str]) – The name of a snapshot from which to restore data into the new cluster . The snapshot status changes to restoring while the new cluster is being created.

  • snapshot_retention_limit (Union[int, float, None]) – The number of days for which MemoryDB retains automatic snapshots before deleting them. For example, if you set SnapshotRetentionLimit to 5, a snapshot that was taken today is retained for 5 days before being deleted.

  • snapshot_window (Optional[str]) – The daily time range (in UTC) during which MemoryDB begins taking a daily snapshot of your shard. Example: 05:00-09:00 If you do not specify this parameter, MemoryDB automatically chooses an appropriate time range.

  • sns_topic_arn (Optional[str]) – When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the ARN of the SNS topic, such as arn:aws:memorydb:us-east-1:123456789012:mySNSTopic.

  • sns_topic_status (Optional[str]) – The SNS topic must be in Active status to receive notifications.

  • subnet_group_name (Optional[str]) – The name of the subnet group used by the cluster .

  • tags (Optional[Sequence[Union[CfnTag, Dict[str, Any]]]]) – An array of key-value pairs to apply to this resource. For more information, see Tag .

  • tls_enabled (Union[bool, IResolvable, None]) – A flag to indicate if In-transit encryption is enabled.

Methods

add_deletion_override(path)

Syntactic sugar for addOverride(path, undefined).

Parameters

path (str) – The path of the value to delete.

Return type

None

add_dependency(target)

Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.

Parameters

target (CfnResource) –

Return type

None

add_depends_on(target)

(deprecated) Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

Parameters

target (CfnResource) –

Deprecated

use addDependency

Stability

deprecated

Return type

None

add_metadata(key, value)

Add a value to the CloudFormation Resource Metadata.

Parameters
  • key (str) –

  • value (Any) –

See

Return type

None

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

add_override(path, value)

Adds an override to the synthesized CloudFormation resource.

To add a property override, either use addPropertyOverride or prefix path with “Properties.” (i.e. Properties.TopicName).

If the override is nested, separate each nested level using a dot (.) in the path parameter. If there is an array as part of the nesting, specify the index in the path.

To include a literal . in the property name, prefix with a \. In most programming languages you will need to write this as "\\." because the \ itself will need to be escaped.

For example:

# Example automatically generated from non-compiling source. May contain errors.
cfn_resource.add_override("Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes", ["myattribute"])
cfn_resource.add_override("Properties.GlobalSecondaryIndexes.1.ProjectionType", "INCLUDE")

would add the overrides Example:

"Properties": {
   "GlobalSecondaryIndexes": [
     {
       "Projection": {
         "NonKeyAttributes": [ "myattribute" ]
         ...
       }
       ...
     },
     {
       "ProjectionType": "INCLUDE"
       ...
     },
   ]
   ...
}

The value argument to addOverride will not be processed or translated in any way. Pass raw JSON values in here with the correct capitalization for CloudFormation. If you pass CDK classes or structs, they will be rendered with lowercased key names, and CloudFormation will reject the template.

Parameters
  • path (str) –

    • The path of the property, you can use dot notation to override values in complex types. Any intermdediate keys will be created as needed.

  • value (Any) –

    • The value. Could be primitive or complex.

Return type

None

add_property_deletion_override(property_path)

Adds an override that deletes the value of a property from the resource definition.

Parameters

property_path (str) – The path to the property.

Return type

None

add_property_override(property_path, value)

Adds an override to a resource property.

Syntactic sugar for addOverride("Properties.<...>", value).

Parameters
  • property_path (str) – The path of the property.

  • value (Any) – The value.

Return type

None

apply_removal_policy(policy=None, *, apply_to_update_replace_policy=None, default=None)

Sets the deletion policy of the resource based on the removal policy specified.

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). In some cases, a snapshot can be taken of the resource prior to deletion (RemovalPolicy.SNAPSHOT). A list of resources that support this policy can be found in the following link:

Parameters
  • policy (Optional[RemovalPolicy]) –

  • apply_to_update_replace_policy (Optional[bool]) – Apply the same deletion policy to the resource’s “UpdateReplacePolicy”. Default: true

  • default (Optional[RemovalPolicy]) – The default policy to apply in case the removal policy is not defined. Default: - Default value is resource specific. To determine the default value for a resoure, please consult that specific resource’s documentation.

See

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html#aws-attribute-deletionpolicy-options

Return type

None

get_att(attribute_name, type_hint=None)

Returns a token for an runtime attribute of this resource.

Ideally, use generated attribute accessors (e.g. resource.arn), but this can be used for future compatibility in case there is no generated attribute.

Parameters
  • attribute_name (str) – The name of the attribute.

  • type_hint (Optional[ResolutionTypeHint]) –

Return type

Reference

get_metadata(key)

Retrieve a value value from the CloudFormation Resource Metadata.

Parameters

key (str) –

See

Return type

Any

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

inspect(inspector)

Examines the CloudFormation resource and discloses attributes.

Parameters

inspector (TreeInspector) –

  • tree inspector to collect and process attributes.

Return type

None

obtain_dependencies()

Retrieves an array of resources this resource depends on.

This assembles dependencies on resources across stacks (including nested stacks) automatically.

Return type

List[Union[CfnResource, Stack]]

obtain_resource_dependencies()

Get a shallow copy of dependencies between this resource and other resources in the same stack.

Return type

List[CfnResource]

override_logical_id(new_logical_id)

Overrides the auto-generated logical ID with a specific ID.

Parameters

new_logical_id (str) – The new logical ID to use for this stack element.

Return type

None

remove_dependency(target)

Indicates that this resource no longer depends on another resource.

This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope.

Parameters

target (CfnResource) –

Return type

None

replace_dependency(target, new_target)

Replaces one dependency with another.

Parameters
Return type

None

to_string()

Returns a string representation of this construct.

Return type

str

Returns

a string representation of this resource

Attributes

CFN_RESOURCE_TYPE_NAME = 'AWS::MemoryDB::Cluster'
acl_name

The name of the Access Control List to associate with the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-aclname

attr_arn

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the ARN of the cluster , such as arn:aws:memorydb:us-east-1:123456789012:cluster/my-cluster.

CloudformationAttribute

ARN

attr_cluster_endpoint_address

The address of the cluster ‘s configuration endpoint.

CloudformationAttribute

ClusterEndpoint.Address

attr_cluster_endpoint_port

The port used by the cluster configuration endpoint.

CloudformationAttribute

ClusterEndpoint.Port

attr_parameter_group_status

The status of the parameter group used by the cluster , for example active or applying .

CloudformationAttribute

ParameterGroupStatus

attr_status

The status of the cluster.

For example, ‘available’, ‘updating’ or ‘creating’.

CloudformationAttribute

Status

auto_minor_version_upgrade

When set to true, the cluster will automatically receive minor engine version upgrades after launch.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-autominorversionupgrade

cfn_options

Options for this resource, such as condition, update policy etc.

cfn_resource_type

AWS resource type.

cluster_endpoint

The cluster ‘s configuration endpoint.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-clusterendpoint

cluster_name

The name of the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-clustername

creation_stack

return:

the stack trace of the point where this Resource was created from, sourced from the +metadata+ entry typed +aws:cdk:logicalId+, and with the bottom-most node +internal+ entries filtered.

data_tiering

Enables data tiering.

Data tiering is only supported for replication groups using the r6gd node type. This parameter must be set to true when using r6gd nodes. For more information, see Data tiering .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-datatiering

description

A description of the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-description

engine_version

The Redis engine version used by the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-engineversion

final_snapshot_name

The user-supplied name of a final cluster snapshot.

This is the unique name that identifies the snapshot. MemoryDB creates the snapshot, and then deletes the cluster immediately afterward.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-finalsnapshotname

kms_key_id

The ID of the KMS key used to encrypt the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-kmskeyid

logical_id

The logical ID for this CloudFormation stack element.

The logical ID of the element is calculated from the path of the resource node in the construct tree.

To override this value, use overrideLogicalId(newLogicalId).

Returns

the logical ID as a stringified token. This value will only get resolved during synthesis.

maintenance_window

Specifies the weekly time range during which maintenance on the cluster is performed.

It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period.

Pattern : ddd:hh24:mi-ddd:hh24:mi

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-maintenancewindow

node

The tree node.

node_type

The cluster ‘s node type.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-nodetype

num_replicas_per_shard

The number of replicas to apply to each shard.

Default value : 1

Maximum value : 5

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-numreplicaspershard

num_shards

The number of shards in the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-numshards

parameter_group_name

The name of the parameter group used by the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-parametergroupname

port

The port used by the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-port

ref

Return a string that will be resolved to a CloudFormation { Ref } for this element.

If, by any chance, the intrinsic reference of a resource is not a string, you could coerce it to an IResolvable through Lazy.any({ produce: resource.ref }).

security_group_ids

A list of security group names to associate with this cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-securitygroupids

snapshot_arns

A list of Amazon Resource Names (ARN) that uniquely identify the RDB snapshot files stored in Amazon S3.

The snapshot files are used to populate the new cluster . The Amazon S3 object name in the ARN cannot contain any commas.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-snapshotarns

snapshot_name

The name of a snapshot from which to restore data into the new cluster .

The snapshot status changes to restoring while the new cluster is being created.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-snapshotname

snapshot_retention_limit

The number of days for which MemoryDB retains automatic snapshots before deleting them.

For example, if you set SnapshotRetentionLimit to 5, a snapshot that was taken today is retained for 5 days before being deleted.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-snapshotretentionlimit

snapshot_window

The daily time range (in UTC) during which MemoryDB begins taking a daily snapshot of your shard.

Example: 05:00-09:00 If you do not specify this parameter, MemoryDB automatically chooses an appropriate time range.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-snapshotwindow

sns_topic_arn

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the ARN of the SNS topic, such as arn:aws:memorydb:us-east-1:123456789012:mySNSTopic.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-snstopicarn

sns_topic_status

The SNS topic must be in Active status to receive notifications.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-snstopicstatus

stack

The stack in which this element is defined.

CfnElements must be defined within a stack scope (directly or indirectly).

subnet_group_name

The name of the subnet group used by the cluster .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-subnetgroupname

tags

An array of key-value pairs to apply to this resource.

For more information, see Tag .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-tags

tls_enabled

A flag to indicate if In-transit encryption is enabled.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-memorydb-cluster.html#cfn-memorydb-cluster-tlsenabled

Static Methods

classmethod is_cfn_element(x)

Returns true if a construct is a stack element (i.e. part of the synthesized cloudformation template).

Uses duck-typing instead of instanceof to allow stack elements from different versions of this library to be included in the same stack.

Parameters

x (Any) –

Return type

bool

Returns

The construct as a stack element or undefined if it is not a stack element.

classmethod is_cfn_resource(construct)

Check whether the given construct is a CfnResource.

Parameters

construct (IConstruct) –

Return type

bool

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.

EndpointProperty

class CfnCluster.EndpointProperty(*, address=None, port=None)

Bases: object

Represents the information required for client programs to connect to the cluster and its nodes.

Parameters
  • address (Optional[str]) – The DNS hostname of the node.

  • port (Union[int, float, None]) – The port number that the engine is listening on.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-memorydb-cluster-endpoint.html

ExampleMetadata

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_memorydb as memorydb

endpoint_property = memorydb.CfnCluster.EndpointProperty(
    address="address",
    port=123
)

Attributes

address

The DNS hostname of the node.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-memorydb-cluster-endpoint.html#cfn-memorydb-cluster-endpoint-address

port

The port number that the engine is listening on.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-memorydb-cluster-endpoint.html#cfn-memorydb-cluster-endpoint-port