LifecycleHook

class aws_cdk.aws_autoscaling.LifecycleHook(scope, id, *, auto_scaling_group, lifecycle_transition, default_result=None, heartbeat_timeout=None, lifecycle_hook_name=None, notification_metadata=None, notification_target=None, role=None)

Bases: Resource

Define a life cycle hook.

ExampleMetadata:: fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
import aws_cdk as cdk
from aws_cdk import aws_autoscaling as autoscaling
from aws_cdk import aws_iam as iam

# auto_scaling_group: autoscaling.AutoScalingGroup
# lifecycle_hook_target: autoscaling.ILifecycleHookTarget
# role: iam.Role

lifecycle_hook = autoscaling.LifecycleHook(self, "MyLifecycleHook",
    auto_scaling_group=auto_scaling_group,
    lifecycle_transition=autoscaling.LifecycleTransition.INSTANCE_LAUNCHING,

    # the properties below are optional
    default_result=autoscaling.DefaultResult.CONTINUE,
    heartbeat_timeout=cdk.Duration.minutes(30),
    lifecycle_hook_name="lifecycleHookName",
    notification_metadata="notificationMetadata",
    notification_target=lifecycle_hook_target,
    role=role
)

Parameters:

scope (Construct) –
id (str) –
auto_scaling_group (IAutoScalingGroup) – The AutoScalingGroup to add the lifecycle hook to.
lifecycle_transition (LifecycleTransition) – The state of the Amazon EC2 instance to which you want to attach the lifecycle hook.
default_result (Optional[DefaultResult]) – The action the Auto Scaling group takes when the lifecycle hook timeout elapses or if an unexpected failure occurs. Default: Continue
heartbeat_timeout (Optional[Duration]) – Maximum time between calls to RecordLifecycleActionHeartbeat for the hook. If the lifecycle hook times out, perform the action in DefaultResult. Default: - No heartbeat timeout.
lifecycle_hook_name (Optional[str]) – Name of the lifecycle hook. Default: - Automatically generated name.
notification_metadata (Optional[str]) – Additional data to pass to the lifecycle hook target. Default: - No metadata.
notification_target (Optional[ILifecycleHookTarget]) – The target of the lifecycle hook. Default: - No target.
role (Optional[IRole]) – The role that allows publishing to the notification target. Default: - A role will be created if a target is provided. Otherwise, no role is created.

Methods

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

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.

lifecycle_hook_name

The name of this lifecycle hook.

Attribute:: true

node: The tree node.

role

The role that allows the ASG to publish to the notification target.

Default:

A default role is created if ‘notificationTarget’ is specified.

Otherwise, no role is created.

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

Static Methods

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