---
- name: Upgrade Appwrite
  hosts: bab1.mgmt.toal.ca
  vars:
    appwrite_dir: /home/ptoal/appwrite
    appwrite_socket: /var/run/docker.sock
    appwrite_web_port: 8080
    appwrite_websecure_port: 8443
    # Sequential upgrade path: cannot skip minor versions.
    upgrade_path:
      - "1.6.2"
      - "1.7.4"
      - "1.8.1"

  tasks:
    - name: Get current Appwrite container info
      community.docker.docker_container_info:
        name: appwrite
      register: appwrite_container_info

    - name: Set current Appwrite version fact
      ansible.builtin.set_fact:
        current_appwrite_version: >-
          {{ appwrite_container_info.container.Config.Image.split(':') | last
             if appwrite_container_info.exists
             else '0.0.0' }}

    - name: Show current Appwrite version
      ansible.builtin.debug:
        msg: "Current Appwrite version: {{ current_appwrite_version }}"

    - name: Back up MariaDB data volume before upgrade
      ansible.builtin.command:
        argv:
          - docker
          - run
          - --rm
          - --volume
          - appwrite-mariadb:/data:ro
          - --volume
          - "{{ appwrite_dir }}:/backup"
          - alpine
          - tar
          - czf
          - /backup/mariadb-backup-pre-upgrade.tar.gz
          - /data
      changed_when: true

    - name: Upgrade through each intermediate version
      ansible.builtin.include_tasks: tasks/upgrade_appwrite_step.yml
      loop: "{{ upgrade_path }}"
      loop_control:
        loop_var: appwrite_target_version
      when: appwrite_target_version is version(current_appwrite_version, '>')

    - name: Prune dangling images left by upgrade
      community.docker.docker_prune:
        images: true
        images_filters:
          dangling: true