Amazon EC2 Auto Scaling Decommission Group and Launch Configuration

arazzo: 1.0.1
info:
  title: Amazon EC2 Auto Scaling Decommission Group and Launch Configuration
  summary: Force-delete an Auto Scaling group, confirm it is gone, and delete its launch configuration.
  description: >-
    Tears down an Auto Scaling group and its supporting launch configuration.
    The workflow force-deletes the group (terminating its instances), describes
    groups to confirm the group no longer appears and branches accordingly, and
    then deletes the launch configuration that backed the group. Every step
    spells out the AWS query-protocol Action and Version inline so the flow can
    be read and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: autoScalingApi
  url: ../openapi/amazon-ec2-auto-scaling-openapi.yaml
  type: openapi
workflows:
- workflowId: decommission-group-and-launch-configuration
  summary: Delete an Auto Scaling group, verify removal, and delete its launch configuration.
  description: >-
    Force-deletes the group, confirms it is gone, then deletes the associated
    launch configuration.
  inputs:
    type: object
    required:
    - autoScalingGroupName
    - launchConfigurationName
    properties:
      autoScalingGroupName:
        type: string
        description: The name of the Auto Scaling group to delete.
      launchConfigurationName:
        type: string
        description: The name of the launch configuration to delete after the group is gone.
      forceDelete:
        type: boolean
        description: Whether to delete the group along with all its instances without waiting for termination.
  steps:
  - stepId: deleteAutoScalingGroup
    description: >-
      Delete the Auto Scaling group, optionally forcing termination of all its
      instances.
    operationId: POST_DeleteAutoScalingGroup
    parameters:
    - name: Action
      in: query
      value: DeleteAutoScalingGroup
    - name: Version
      in: query
      value: 2011-01-01
    requestBody:
      contentType: text/xml
      payload:
        AutoScalingGroupName: $inputs.autoScalingGroupName
        ForceDelete: $inputs.forceDelete
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      deleteStatus: $statusCode
  - stepId: confirmGroupDeleted
    description: >-
      Describe groups filtered by name and branch on whether the deleted group
      is fully gone before removing the launch configuration.
    operationId: POST_DescribeAutoScalingGroups
    parameters:
    - name: Action
      in: query
      value: DescribeAutoScalingGroups
    - name: Version
      in: query
      value: 2011-01-01
    requestBody:
      contentType: text/xml
      payload:
        AutoScalingGroupNames:
        - $inputs.autoScalingGroupName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      remainingGroupCount: $response.body#/AutoScalingGroups
    onSuccess:
    - name: groupGone
      type: goto
      stepId: deleteLaunchConfiguration
      criteria:
      - context: $response.body
        condition: $.AutoScalingGroups.length == 0
        type: jsonpath
    - name: groupStillDeleting
      type: goto
      stepId: deleteLaunchConfiguration
      criteria:
      - context: $response.body
        condition: $.AutoScalingGroups.length > 0
        type: jsonpath
  - stepId: deleteLaunchConfiguration
    description: >-
      Delete the launch configuration that backed the now-removed Auto Scaling
      group.
    operationId: POST_DeleteLaunchConfiguration
    parameters:
    - name: Action
      in: query
      value: DeleteLaunchConfiguration
    - name: Version
      in: query
      value: 2011-01-01
    requestBody:
      contentType: text/xml
      payload:
        LaunchConfigurationName: $inputs.launchConfigurationName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      deleteLaunchConfigStatus: $statusCode
  outputs:
    deleteStatus: $steps.deleteAutoScalingGroup.outputs.deleteStatus
    deleteLaunchConfigStatus: $steps.deleteLaunchConfiguration.outputs.deleteLaunchConfigStatus