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I have the following autoscaling as a Cloudformation template : 

  MyAutoScalingGroup:
    Type: AWS::AutoScaling::AutoScalingGroup
    Properties:
      DesiredCapacity: 1
      MinSize: 1
      MaxSize: 1
      LaunchConfigurationName: !Ref MyLaunchConfiguration
      AvailabilityZones: !GetAZs

I am struggling with defining suspended processes inside Cloudformation template.

Trying an intuitive approach ( adding it as property) and it does not work at all : 

  MyAutoScalingGroup:
    Type: AWS::AutoScaling::AutoScalingGroup
    Properties:
      DesiredCapacity: 1
      MinSize: 1
      MaxSize: 1
      LaunchConfigurationName: !Ref MyLaunchConfiguration
      AvailabilityZones: !GetAZs
      SuspendedProcesses:
        - AZRebalance
        - Terminate
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  • 3
    What are you trying to do ? It's unclear what you're trying to accomplish here.
    – Tensibai
    Commented Dec 14, 2017 at 14:26
  • Hello @Tensibai, I got it. Thank you for your interesting.
    – Abdennour TOUMI
    Commented Dec 14, 2017 at 17:03
  • I followed the same, but once the autoscaling group is created without having any SuspenProcess properties.
    – Sai
    Commented Jan 17, 2019 at 23:42

1 Answer 1

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Got it from official documentation of UpdatePolicy . Indeed, we can suspend processes by using the UpdatePolicy attribute for the AWS::AutoScaling::AutoScalingGroup resource :

  • So instead of SuspendedProcesses, the right term is SuspendProcesses.

  • Also instead of putting SuspendProcesses under Properties, it should be under UpdatePolicy > AutoScalingRollingUpdate .

_

  MyAutoScalingGroup:
    Type: AWS::AutoScaling::AutoScalingGroup
    Properties:
      DesiredCapacity: 1
      MinSize: 1
      MaxSize: 1
      LaunchConfigurationName: !Ref MyLaunchConfiguration
      AvailabilityZones: !GetAZs
    UpdatePolicy:
      AutoScalingRollingUpdate:
        SuspendProcesses:
        - AZRebalance
        - Terminate
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1
  • 1
    This suspends the processes during updates to the ASG via the CF stack, not in general (CF resumes the processes when it is done updating the ASG).
    – raylu
    Commented Jun 13, 2018 at 22:57

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