---
# Pulling by digest means this either fetches exactly the reviewed image or
# fails. There is no "latest wins" path.
- name: Pull the pinned gatus image
  ansible.builtin.command:
    cmd: docker compose pull
    chdir: "{{ gatus_dir }}"
  register: gatus_pull
  changed_when: "'Downloaded newer image' in gatus_pull.stderr or 'Pull complete' in gatus_pull.stderr"

- name: Start gatus
  ansible.builtin.command:
    cmd: docker compose up -d --remove-orphans
    chdir: "{{ gatus_dir }}"
  register: gatus_up
  changed_when: "'Started' in gatus_up.stderr or 'Created' in gatus_up.stderr or 'Recreated' in gatus_up.stderr"

- name: Flush handlers so a config change is live before it is verified
  ansible.builtin.meta: flush_handlers

- name: Wait for gatus to answer
  ansible.builtin.uri:
    url: "http://{{ gatus_bind_address }}:{{ gatus_port }}/health"
    status_code: [200, 404]
  register: gatus_health
  until: gatus_health.status in [200, 404]
  retries: 12
  delay: 5

- name: Assert gatus is running
  ansible.builtin.assert:
    that:
      - gatus_health.status in [200, 404]
    fail_msg: "gatus did not come up on {{ gatus_bind_address }}:{{ gatus_port }} - check `docker logs gatus`"
    success_msg: "gatus is answering on {{ gatus_bind_address }}:{{ gatus_port }}"