AWS SSM Automation example

gistfile1.txt

---
schemaVersion: '0.3'
description: Execute CPU stress via Run Command
assumeRole: "{{AutomationAssumeRole}}"
parameters:
  AutomationAssumeRole:
    type: String
    description: "The ARN of the role that allows Automation to perform the actions on your behalf."
    default: ''
  InstanceIds:
    type: StringList
    description: "(Required) EC2 Instance(s) to terminate"
  duration:
    type: String
    description: The duration - in seconds - of the attack. (Required)
    default: "60"
  cpu:
    type: String
    description: 'Specify the number of CPU stressors to use (default all)'
    default: "0"
mainSteps:
  - name: verifyInstanceStateRunningBefore
    action: aws:waitForAwsResourceProperty
    # timeout is strongly encouraged for action
    timeoutSeconds: 60
    inputs:
      Service: ec2
      Api: DescribeInstanceStatus
      InstanceIds:
        - "{{ InstanceIds }}"
      PropertySelector: "$.InstanceStatuses[0].InstanceState.Name"
      DesiredValues:
        - running
  - name: RunChaosCPU
    action: aws:runCommand
    maxAttempts: 3
    timeoutSeconds: 60
    onFailure: Abort
    inputs:
      DocumentName: cpu-stress
      InstanceIds: 
        - "{{ InstanceIds }}"
      Parameters:
        cpu: "{{ cpu }}"
        duration: "{{ duration }}"
  - name: verifyInstanceStateRunningAfter
    action: aws:waitForAwsResourceProperty
    # timeout is strongly encouraged for action
    timeoutSeconds: 60
    inputs:
      Service: ec2
      Api: DescribeInstanceStatus
      InstanceIds:
        - "{{ InstanceIds }}"
      PropertySelector: "$.InstanceStatuses[0].InstanceState.Name"
      DesiredValues:
        - running