prometheus/tasks/exporter/_docker.yml

---
- name: '{{ exporter }} exporter | check if docker is installed'
  shell:
    cmd: "{{ item }} --help"
  register: result
  check_mode: false
  changed_when: false
  failed_when: result.rc != 0 and result.rc != 127
  with_items:
    - docker
    - docker-compose
  tags: [ 'prometheus_{{ exporter }}' ]

- name: '{{ exporter }} exporter | create docker-compose directory'
  file:
    path: "{{ docker_compose_directory }}/{{ exporter }}"
    state: directory
    mode: '0755'
  tags: [ 'prometheus_{{ exporter }}' ]

- name: '{{ exporter }} exporter | copy docker-compose file'
  template:
    src: compose/{{ exporter }}.yml.j2
    dest: "/opt/docker-compose/{{ exporter }}/docker-compose.yml"
    owner: root
    group: root
    mode: 0644
  notify:
    - '{{ exporter }}-exporter-restart'
  tags: [ 'prometheus_{{ exporter }}' ]

- name: '{{ exporter }} exporter | systemd | install unit file'
  template:
    src: systemd/docker-compose.service.j2
    dest: "/etc/systemd/system/docker-compose@{{ exporter }}.service"
    owner: root
    group: root
    mode: 0600
  notify:
    - '{{ exporter }}-exporter-restart'
  tags: [ 'prometheus_{{ exporter }}' ]

- name: '{{ exporter }} exporter | systemd | enable service'
  systemd:
    daemon_reload: yes
    name: "docker-compose@{{ exporter }}"
    enabled: true
  ignore_errors: '{{ ansible_check_mode }}'
  tags: [ 'prometheus_{{ exporter }}' ]