openapi: 3.0.0
info:
  version: 2011-01-01
  x-release: v4
  title: 'Auto Scaling #Action=AttachInstances #Action=AttachInstances #Action=PutLifecycleHook API'
  description: <fullname>Amazon EC2 Auto Scaling</fullname> <p>Amazon EC2 Auto Scaling is designed to automatically launch and terminate EC2 instances based on user-defined scaling policies, scheduled actions, and health checks.</p> <p>For more information, see the <a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/">Amazon EC2 Auto Scaling User Guide</a> and the <a href="https://docs.aws.amazon.com/autoscaling/ec2/APIReference/Welcome.html">Amazon EC2 Auto Scaling API Reference</a>.</p>
  x-logo:
    url: https://api.apis.guru/v2/cache/logo/https_twitter.com_awscloud_profile_image.png
    backgroundColor: '#FFFFFF'
  termsOfService: https://aws.amazon.com/service-terms/
  contact:
    name: Mike Ralphson
    email: mike.ralphson@gmail.com
    url: https://github.com/mermade/aws2openapi
    x-twitter: PermittedSoc
  license:
    name: Apache 2.0 License
    url: http://www.apache.org/licenses/
  x-providerName: amazonaws.com
  x-serviceName: autoscaling
  x-origin:
  - contentType: application/json
    url: https://raw.githubusercontent.com/aws/aws-sdk-js/master/apis/autoscaling-2011-01-01.normal.json
    converter:
      url: https://github.com/mermade/aws2openapi
      version: 1.0.0
    x-apisguru-driver: external
  x-apiClientRegistration:
    url: https://portal.aws.amazon.com/gp/aws/developer/registration/index.html?nc2=h_ct
  x-apisguru-categories:
  - cloud
  x-preferred: true
servers:
- url: http://autoscaling.{region}.amazonaws.com
  variables:
    region:
      description: The AWS region
      enum:
      - us-east-1
      - us-east-2
      - us-west-1
      - us-west-2
      - us-gov-west-1
      - us-gov-east-1
      - ca-central-1
      - eu-north-1
      - eu-west-1
      - eu-west-2
      - eu-west-3
      - eu-central-1
      - eu-south-1
      - af-south-1
      - ap-northeast-1
      - ap-northeast-2
      - ap-northeast-3
      - ap-southeast-1
      - ap-southeast-2
      - ap-east-1
      - ap-south-1
      - sa-east-1
      - me-south-1
      default: us-east-1
  description: The Auto Scaling multi-region endpoint
- url: https://autoscaling.{region}.amazonaws.com
  variables:
    region:
      description: The AWS region
      enum:
      - us-east-1
      - us-east-2
      - us-west-1
      - us-west-2
      - us-gov-west-1
      - us-gov-east-1
      - ca-central-1
      - eu-north-1
      - eu-west-1
      - eu-west-2
      - eu-west-3
      - eu-central-1
      - eu-south-1
      - af-south-1
      - ap-northeast-1
      - ap-northeast-2
      - ap-northeast-3
      - ap-southeast-1
      - ap-southeast-2
      - ap-east-1
      - ap-south-1
      - sa-east-1
      - me-south-1
      default: us-east-1
  description: The Auto Scaling multi-region endpoint
- url: http://autoscaling.amazonaws.com
  variables: {}
  description: The general Auto Scaling endpoint for US East (N. Virginia)
- url: https://autoscaling.amazonaws.com
  variables: {}
  description: The general Auto Scaling endpoint for US East (N. Virginia)
- url: http://autoscaling.{region}.amazonaws.com.cn
  variables:
    region:
      description: The AWS region
      enum:
      - cn-north-1
      - cn-northwest-1
      default: cn-north-1
  description: The Auto Scaling endpoint for China (Beijing) and China (Ningxia)
- url: https://autoscaling.{region}.amazonaws.com.cn
  variables:
    region:
      description: The AWS region
      enum:
      - cn-north-1
      - cn-northwest-1
      default: cn-north-1
  description: The Auto Scaling endpoint for China (Beijing) and China (Ningxia)
security:
- hmac: []
tags:
- name: '#Action=PutLifecycleHook'
paths:
  /#Action=PutLifecycleHook:
    parameters:
    - $ref: '#/components/parameters/X-Amz-Content-Sha256'
    - $ref: '#/components/parameters/X-Amz-Date'
    - $ref: '#/components/parameters/X-Amz-Algorithm'
    - $ref: '#/components/parameters/X-Amz-Credential'
    - $ref: '#/components/parameters/X-Amz-Security-Token'
    - $ref: '#/components/parameters/X-Amz-Signature'
    - $ref: '#/components/parameters/X-Amz-SignedHeaders'
    get:
      x-aws-operation-name: PutLifecycleHook
      operationId: GET_PutLifecycleHook
      description: <p>Creates or updates a lifecycle hook for the specified Auto Scaling group.</p> <p>Lifecycle hooks let you create solutions that are aware of events in the Auto Scaling instance lifecycle, and then perform a custom action on instances when the corresponding lifecycle event occurs.</p> <p>This step is a part of the procedure for adding a lifecycle hook to an Auto Scaling group:</p> <ol> <li> <p>(Optional) Create a launch template or launch configuration with a user data script that runs while an instance is in a wait state due to a lifecycle hook.</p> </li> <li> <p>(Optional) Create a Lambda function and a rule that allows Amazon EventBridge to invoke your Lambda function when an instance is put into a wait state due to a lifecycle hook.</p> </li> <li> <p>(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.</p> </li> <li> <p> <b>Create the lifecycle hook. Specify whether the hook is used when the instances launch or terminate.</b> </p> </li> <li> <p>If you need more time, record the lifecycle action heartbeat to keep the instance in a wait state using the <a>RecordLifecycleActionHeartbeat</a> API call.</p> </li> <li> <p>If you finish before the timeout period ends, send a callback by using the <a>CompleteLifecycleAction</a> API call.</p> </li> </ol> <p>For more information, see <a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/lifecycle-hooks.html">Amazon EC2 Auto Scaling lifecycle hooks</a> in the <i>Amazon EC2 Auto Scaling User Guide</i>.</p> <p>If you exceed your maximum limit of lifecycle hooks, which by default is 50 per Auto Scaling group, the call fails.</p> <p>You can view the lifecycle hooks for an Auto Scaling group using the <a>DescribeLifecycleHooks</a> API call. If you are no longer using a lifecycle hook, you can delete it by calling the <a>DeleteLifecycleHook</a> API.</p>
      responses:
        '200':
          description: Success
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/PutLifecycleHookAnswer'
              examples:
                GET_PutLifecycleHook200Example:
                  summary: Default GET_PutLifecycleHook 200 response
                  x-microcks-default: true
                  value: {}
        '480':
          description: LimitExceededFault
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/LimitExceededFault'
              examples:
                GET_PutLifecycleHook480Example:
                  summary: Default GET_PutLifecycleHook 480 response
                  x-microcks-default: true
                  value: {}
        '481':
          description: ResourceContentionFault
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/ResourceContentionFault'
              examples:
                GET_PutLifecycleHook481Example:
                  summary: Default GET_PutLifecycleHook 481 response
                  x-microcks-default: true
                  value: {}
      parameters:
      - name: LifecycleHookName
        in: query
        required: true
        description: The name of the lifecycle hook.
        schema:
          type: string
          pattern: '[A-Za-z0-9\-_\/]+'
          minLength: 1
          maxLength: 255
      - name: AutoScalingGroupName
        in: query
        required: true
        description: The name of the Auto Scaling group.
        schema:
          type: string
          minLength: 1
          maxLength: 255
          x-pattern: '[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*'
      - name: LifecycleTransition
        in: query
        required: false
        description: <p>The lifecycle transition. For Auto Scaling groups, there are two major lifecycle transitions.</p> <ul> <li> <p>To create a lifecycle hook for scale-out events, specify <code>autoscaling:EC2_INSTANCE_LAUNCHING</code>.</p> </li> <li> <p>To create a lifecycle hook for scale-in events, specify <code>autoscaling:EC2_INSTANCE_TERMINATING</code>.</p> </li> </ul> <p>Required for new lifecycle hooks, but optional when updating existing hooks.</p>
        schema:
          type: string
      - name: RoleARN
        in: query
        required: false
        description: <p>The ARN of the IAM role that allows the Auto Scaling group to publish to the specified notification target.</p> <p>Valid only if the notification target is an Amazon SNS topic or an Amazon SQS queue. Required for new lifecycle hooks, but optional when updating existing hooks.</p>
        schema:
          type: string
          minLength: 1
          maxLength: 255
          x-pattern: '[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*'
      - name: NotificationTargetARN
        in: query
        required: false
        description: '<p>The Amazon Resource Name (ARN) of the notification target that Amazon EC2 Auto Scaling uses to notify you when an instance is in a wait state for the lifecycle hook. You can specify either an Amazon SNS topic or an Amazon SQS queue.</p> <p>If you specify an empty string, this overrides the current ARN.</p> <p>This operation uses the JSON format when sending notifications to an Amazon SQS queue, and an email key-value pair format when sending notifications to an Amazon SNS topic.</p> <p>When you specify a notification target, Amazon EC2 Auto Scaling sends it a test message. Test messages contain the following additional key-value pair: <code>"Event": "autoscaling:TEST_NOTIFICATION"</code>.</p>'
        schema:
          type: string
          minLength: 0
          maxLength: 255
          x-pattern: '[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*'
      - name: NotificationMetadata
        in: query
        required: false
        description: Additional information that you want to include any time Amazon EC2 Auto Scaling sends a message to the notification target.
        schema:
          type: string
          minLength: 1
          maxLength: 1023
          x-pattern: '[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*'
      - name: HeartbeatTimeout
        in: query
        required: false
        description: The maximum time, in seconds, that can elapse before the lifecycle hook times out. The range is from <code>30</code> to <code>7200</code> seconds. The default value is <code>3600</code> seconds (1 hour).
        schema:
          type: integer
      - name: DefaultResult
        in: query
        required: false
        description: '<p>The action the Auto Scaling group takes when the lifecycle hook timeout elapses or if an unexpected failure occurs. The default value is <code>ABANDON</code>.</p> <p>Valid values: <code>CONTINUE</code> | <code>ABANDON</code> </p>'
        schema:
          type: string
      - name: Action
        in: query
        required: true
        schema:
          type: string
          enum:
          - PutLifecycleHook
      - name: Version
        in: query
        required: true
        schema:
          type: string
          enum:
          - 2011-01-01
      summary: Amazon EC2 Auto Scaling GET_ Put Lifecycle Hook
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
      tags:
      - '#Action=PutLifecycleHook'
    post:
      x-aws-operation-name: PutLifecycleHook
      operationId: POST_PutLifecycleHook
      description: <p>Creates or updates a lifecycle hook for the specified Auto Scaling group.</p> <p>Lifecycle hooks let you create solutions that are aware of events in the Auto Scaling instance lifecycle, and then perform a custom action on instances when the corresponding lifecycle event occurs.</p> <p>This step is a part of the procedure for adding a lifecycle hook to an Auto Scaling group:</p> <ol> <li> <p>(Optional) Create a launch template or launch configuration with a user data script that runs while an instance is in a wait state due to a lifecycle hook.</p> </li> <li> <p>(Optional) Create a Lambda function and a rule that allows Amazon EventBridge to invoke your Lambda function when an instance is put into a wait state due to a lifecycle hook.</p> </li> <li> <p>(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.</p> </li> <li> <p> <b>Create the lifecycle hook. Specify whether the hook is used when the instances launch or terminate.</b> </p> </li> <li> <p>If you need more time, record the lifecycle action heartbeat to keep the instance in a wait state using the <a>RecordLifecycleActionHeartbeat</a> API call.</p> </li> <li> <p>If you finish before the timeout period ends, send a callback by using the <a>CompleteLifecycleAction</a> API call.</p> </li> </ol> <p>For more information, see <a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/lifecycle-hooks.html">Amazon EC2 Auto Scaling lifecycle hooks</a> in the <i>Amazon EC2 Auto Scaling User Guide</i>.</p> <p>If you exceed your maximum limit of lifecycle hooks, which by default is 50 per Auto Scaling group, the call fails.</p> <p>You can view the lifecycle hooks for an Auto Scaling group using the <a>DescribeLifecycleHooks</a> API call. If you are no longer using a lifecycle hook, you can delete it by calling the <a>DeleteLifecycleHook</a> API.</p>
      responses:
        '200':
          description: Success
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/PutLifecycleHookAnswer'
              examples:
                POST_PutLifecycleHook200Example:
                  summary: Default POST_PutLifecycleHook 200 response
                  x-microcks-default: true
                  value: {}
        '480':
          description: LimitExceededFault
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/LimitExceededFault'
              examples:
                POST_PutLifecycleHook480Example:
                  summary: Default POST_PutLifecycleHook 480 response
                  x-microcks-default: true
                  value: {}
        '481':
          description: ResourceContentionFault
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/ResourceContentionFault'
              examples:
                POST_PutLifecycleHook481Example:
                  summary: Default POST_PutLifecycleHook 481 response
                  x-microcks-default: true
                  value: {}
      requestBody:
        content:
          text/xml:
            schema:
              $ref: '#/components/schemas/PutLifecycleHookType'
      parameters:
      - name: Action
        in: query
        required: true
        schema:
          type: string
          enum:
          - PutLifecycleHook
      - name: Version
        in: query
        required: true
        schema:
          type: string
          enum:
          - 2011-01-01
      summary: Amazon EC2 Auto Scaling POST_ Put Lifecycle Hook
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
      tags:
      - '#Action=PutLifecycleHook'
components:
  parameters:
    X-Amz-Credential:
      name: X-Amz-Credential
      in: header
      schema:
        type: string
      required: false
    X-Amz-SignedHeaders:
      name: X-Amz-SignedHeaders
      in: header
      schema:
        type: string
      required: false
    X-Amz-Security-Token:
      name: X-Amz-Security-Token
      in: header
      schema:
        type: string
      required: false
    X-Amz-Content-Sha256:
      name: X-Amz-Content-Sha256
      in: header
      schema:
        type: string
      required: false
    X-Amz-Date:
      name: X-Amz-Date
      in: header
      schema:
        type: string
      required: false
    X-Amz-Signature:
      name: X-Amz-Signature
      in: header
      schema:
        type: string
      required: false
    X-Amz-Algorithm:
      name: X-Amz-Algorithm
      in: header
      schema:
        type: string
      required: false
  schemas:
    XmlStringMaxLen255:
      type: string
      minLength: 1
      maxLength: 255
      x-pattern: '[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*'
    PutLifecycleHookAnswer:
      type: object
      properties: {}
    HeartbeatTimeout:
      type: integer
    PutLifecycleHookType:
      type: object
      required:
      - LifecycleHookName
      - AutoScalingGroupName
      title: PutLifecycleHookType
      properties:
        LifecycleHookName:
          allOf:
          - $ref: '#/components/schemas/AsciiStringMaxLen255'
          - description: The name of the lifecycle hook.
        AutoScalingGroupName:
          allOf:
          - $ref: '#/components/schemas/XmlStringMaxLen255'
          - description: The name of the Auto Scaling group.
        LifecycleTransition:
          allOf:
          - $ref: '#/components/schemas/LifecycleTransition'
          - description: <p>The lifecycle transition. For Auto Scaling groups, there are two major lifecycle transitions.</p> <ul> <li> <p>To create a lifecycle hook for scale-out events, specify <code>autoscaling:EC2_INSTANCE_LAUNCHING</code>.</p> </li> <li> <p>To create a lifecycle hook for scale-in events, specify <code>autoscaling:EC2_INSTANCE_TERMINATING</code>.</p> </li> </ul> <p>Required for new lifecycle hooks, but optional when updating existing hooks.</p>
        RoleARN:
          allOf:
          - $ref: '#/components/schemas/XmlStringMaxLen255'
          - description: <p>The ARN of the IAM role that allows the Auto Scaling group to publish to the specified notification target.</p> <p>Valid only if the notification target is an Amazon SNS topic or an Amazon SQS queue. Required for new lifecycle hooks, but optional when updating existing hooks.</p>
        NotificationTargetARN:
          allOf:
          - $ref: '#/components/schemas/NotificationTargetResourceName'
          - description: '<p>The Amazon Resource Name (ARN) of the notification target that Amazon EC2 Auto Scaling uses to notify you when an instance is in a wait state for the lifecycle hook. You can specify either an Amazon SNS topic or an Amazon SQS queue.</p> <p>If you specify an empty string, this overrides the current ARN.</p> <p>This operation uses the JSON format when sending notifications to an Amazon SQS queue, and an email key-value pair format when sending notifications to an Amazon SNS topic.</p> <p>When you specify a notification target, Amazon EC2 Auto Scaling sends it a test message. Test messages contain the following additional key-value pair: <code>"Event": "autoscaling:TEST_NOTIFICATION"</code>.</p>'
        NotificationMetadata:
          allOf:
          - $ref: '#/components/schemas/XmlStringMaxLen1023'
          - description: Additional information that you want to include any time Amazon EC2 Auto Scaling sends a message to the notification target.
        HeartbeatTimeout:
          allOf:
          - $ref: '#/components/schemas/HeartbeatTimeout'
          - description: The maximum time, in seconds, that can elapse before the lifecycle hook times out. The range is from <code>30</code> to <code>7200</code> seconds. The default value is <code>3600</code> seconds (1 hour).
        DefaultResult:
          allOf:
          - $ref: '#/components/schemas/LifecycleActionResult'
          - description: '<p>The action the Auto Scaling group takes when the lifecycle hook timeout elapses or if an unexpected failure occurs. The default value is <code>ABANDON</code>.</p> <p>Valid values: <code>CONTINUE</code> | <code>ABANDON</code> </p>'
    LifecycleActionResult:
      type: string
    LimitExceededFault: {}
    ResourceContentionFault: {}
    XmlStringMaxLen1023:
      type: string
      minLength: 1
      maxLength: 1023
      x-pattern: '[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*'
    LifecycleTransition:
      type: string
    NotificationTargetResourceName:
      type: string
      minLength: 0
      maxLength: 255
      x-pattern: '[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*'
    AsciiStringMaxLen255:
      type: string
      pattern: '[A-Za-z0-9\-_\/]+'
      minLength: 1
      maxLength: 255
  securitySchemes:
    hmac:
      type: apiKey
      name: Authorization
      in: header
      description: Amazon Signature authorization v4
      x-amazon-apigateway-authtype: awsSigv4
externalDocs:
  description: Amazon Web Services documentation
  url: https://docs.aws.amazon.com/autoscaling/
x-hasEquivalentPaths: true