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[ aws . autoscaling ]

record-lifecycle-action-heartbeat

Description

Records a heartbeat for the lifecycle action associated with the specified token or instance. This extends the timeout by the length of time defined using the PutLifecycleHook API call.

This step is a part of the procedure for adding a lifecycle hook to an Auto Scaling group:

  • (Optional) Create a Lambda function and a rule that allows CloudWatch Events to invoke your Lambda function when Amazon EC2 Auto Scaling launches or terminates instances.
  • (Optional) Create a notification target and an IAM role. The target can be either an Amazon SQS queue or an Amazon SNS topic. The role allows Amazon EC2 Auto Scaling to publish lifecycle notifications to the target.
  • Create the lifecycle hook. Specify whether the hook is used when the instances launch or terminate.
  • If you need more time, record the lifecycle action heartbeat to keep the instance in a pending state.
  • If you finish before the timeout period ends, complete the lifecycle action.

For more information, see Amazon EC2 Auto Scaling lifecycle hooks in the Amazon EC2 Auto Scaling User Guide .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

Synopsis

  record-lifecycle-action-heartbeat
--lifecycle-hook-name <value>
--auto-scaling-group-name <value>
[--lifecycle-action-token <value>]
[--instance-id <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]

Options

--lifecycle-hook-name (string)

The name of the lifecycle hook.

--auto-scaling-group-name (string)

The name of the Auto Scaling group.

--lifecycle-action-token (string)

A token that uniquely identifies a specific lifecycle action associated with an instance. Amazon EC2 Auto Scaling sends this token to the notification target that you specified when you created the lifecycle hook.

--instance-id (string)

The ID of the instance.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.

Examples

To record a lifecycle action heartbeat

This example records a lifecycle action heartbeat to keep the instance in a pending state.

aws autoscaling record-lifecycle-action-heartbeat \
    --lifecycle-hook-name my-launch-hook \
    --auto-scaling-group-name my-asg \
    --lifecycle-action-token bcd2f1b8-9a78-44d3-8a7a-4dd07d7cf635

This command produces no output.

For more information, see Amazon EC2 Auto Scaling lifecycle hooks in the Amazon EC2 Auto Scaling User Guide.

Output

None

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