ec2_instance_reaper.yml

- hosts: localhost
  vars:
      instance_filters:
          - "instance-state-name=running"
      instance_excludes:
          - "Tags[?Key=='Name' && contains(Value, 'releases.ansible.com')]"
          - "Tags[?Key=='galaxy' && Value=='prod']"
      uptime: 36
      instance_regions:
          - 'ap-northeast-1'
          - 'ap-northeast-2'
          - 'ap-southeast-1'
          - 'ap-southeast-2'
          - 'eu-central-1'
          - 'eu-west-1'
          - 'sa-east-1'
          - 'us-east-1'
          - 'us-east-2'
          - 'us-west-1'
          - 'us-west-2'
          # - 'ap-south-1'
          # - 'ca-central-1'
          # - 'eu-west-2'
          # - 'us-east-2'

  tasks:
      - name: 'Find stale ec2 instances'
        ec2_instance_find:
            region: '{{ item }}'
            uptime: '{{ uptime }}'
            filter: '{{ instance_filters }}'
            exclude: '{{ instance_excludes }}'
        register: ec2_instances
        with_items: '{{ instance_regions }}'

      - name: 'Terminate matching instances'
        ec2:
            region: '{{ item.item }}'
            instance_ids: '{{ item.results|map(attribute="InstanceId")|list }}'
            state: 'absent'
        with_items: '{{ ec2_instances.results }}'
        when: '{{ item.results|default([])|length }} > 0 '