---

- name: Install required packages
  apt:
    name: "{{ item }}"
  with_items: '{{ instance_status_apt_required }}'

- name: Set up checks file for ELB Instance Status
  template:
    src: templates/checks.yml
    dest: /etc/elb-instance-status.yml
  register: instance_status_config

- name: Get current elb-instance-status version
  shell: "/usr/local/bin/elb-instance-status --version || true"
  check_mode: no
  register: instance_status_version_cmd

- name: Download elb-instance-status release
  get_url:
    url: 'https://github.com/Luzifer/elb-instance-status/releases/download/{{ instance_status_version }}/elb-instance-status_linux_amd64'
    dest: /usr/local/bin/elb-instance-status
    force: yes
    mode: 0755
  when: instance_status_version not in instance_status_version_cmd.stdout
  register: instance_status_binary

- name: Install system.d service
  copy:
    content: |
      [Unit]
      Description=Machine health checking service
      After=network-online.target
      Requires=network-online.target

      [Service]
      TimeoutStartSec=0
      TimeoutStopSec=0
      Restart=on-failure
      RestartSec=30
      SyslogIdentifier=elb-instance-status
      ExecStart=/usr/local/bin/elb-instance-status \
                  --listen=:9001

      [Install]
      WantedBy=multi-user.target
    dest: /etc/systemd/system/elb-instance-status.service
  register: instance_status_service

- name: Ensure elb-instance-status is restarted on changes
  systemd:
    daemon_reload: yes
    name: elb-instance-status
    state: restarted
    enabled: yes
  when: instance_status_config.changed or instance_status_binary.changed or instance_status_service.changed