- hosts: tag_env_prod
  remote_user: ec2-user
  gather_facts: false  # of no use
  connection: local # prevent from trying to ssh into instance

  vars:
    target_group_arn: "arn:aws:elasticloadbalancing:eu-west-1:440357826049:targetgroup/TestAnsible/c2afd83500139d9a"

  tasks:
    - name: DEBUG
      debug:
        msg: "{{ hostvars[inventory_hostname].instance_id }}"

    - name: Start instances
      amazon.aws.ec2:
        instance_ids: "{{ hostvars[inventory_hostname].instance_id }}"
        state: running
      when: targetpractice == "true"

    - name: Wait for instances to be reachable
      wait_for:
        host: "{{ inventory_hostname }}"
        port: 22
      when: targetpractice == "true"

    - name: Register targets in TargetGroup
      community.aws.elb_target:
        target_group_arn: "{{ target_group_arn }}"
        state: present
        target_id: "{{ hostvars[inventory_hostname].instance_id }}"
        target_status: "unused"
      when: targetpractice == "true"
    
    - name: Deregister targets in TargetGroup
      community.aws.elb_target:
        target_group_arn: "{{ target_group_arn }}"
        state: absent
        target_id: "{{ hostvars[inventory_hostname].instance_id }}"
        target_status: "unused"
        deregister_unused: yes
      when: targetpractice == "false"
    
    - name: Stop instances
      amazon.aws.ec2:
        instance_ids: "{{ hostvars[inventory_hostname].instance_id }}"
        #instance_ids: "{{ play_hosts }}"
        state: stopped
      when: targetpractice == "false"