delete_managed_vms.yml

---
- name: Delete managed VMs
  hosts: localhost
  gather_facts: false
  vars:
    aws_region: "{{ lookup('env', 'AWS_DEFAULT_REGION') }}"

  tasks:
    - name: Fail if variables not defined
      ansible.builtin.assert:
        that:
          - aws_region is defined
          - managed_vms_name_prefix
          - managed_vms_type is defined
        fail_msg: "Required variables not set"

    - name: Check if the demo VMs is already provisioned
      amazon.aws.ec2_instance_info:
        filters:
          "tag:Name": "{{ managed_vms_name_prefix }}-*"
          instance-state-name:
            - pending
            - running
            - shutting-down
            - stopping
            - stopped
        region: "{{ aws_region }}"
      register: existing_vms

    - name: Delete the VMs
      amazon.aws.ec2_instance:
        instance_ids:
          - "{{ item.instance_id }}"
        region: "{{ aws_region }}"
        state: absent
      loop: "{{ existing_vms.instances }}"
      when: existing_vms.instances is defined and existing_vms.instances | length > 0