---
- name: Update Docker Daemon configuration to use Syslog Server
  hosts: all
  become: yes
  tasks:   
    - name: Read current Docker daemon.json
      ansible.builtin.slurp:
        src: /etc/docker/daemon.json
      register: current_daemon_json

    - name: Parse current Docker daemon.json
      set_fact:
        current_daemon_config: "{{ current_daemon_json['content'] | b64decode | from_json }}"

    - name: Check current log-driver setting
      set_fact:
        log_driver_current: "{{ current_daemon_config['log-driver'] | default('not_set') }}"

    - name: Update Docker daemon.json with syslog configuration if log-driver is local
      ansible.builtin.copy:
        dest: /etc/docker/daemon.json
        content: "{{ updated_daemon_json | to_nice_json }}"
      vars:
        syslog_config: {
          "log-driver": "syslog",
          "log-opts": {
            "syslog-address": "udp://[2a0e:b680:80::91]:5514",
            "syslog-format": "rfc5424",
            "tag": "{{ '{{.Name}}' }}"
          }
        }
        updated_daemon_json: "{{ current_daemon_config | combine(syslog_config) }}"
      when: log_driver_current == 'local' or log is undefined
      register: daemon_update

    - name: Restart Docker to apply changes
      ansible.builtin.systemd:
        name: docker
        state: restarted
      when: daemon_update.changed

    - include_role:
        name: roles/managed-mailcow
        tasks_from: find-mailcow-composedir.yml
      when: daemon_update.changed

    - name: Stop mailcow stack
      import_role:
        name: roles/managed-mailcow
        tasks_from: stop-mailcow.yml
      vars:
        docker_compose_path: "{{ mailcow_dir_result.files[0].path }}"
        verbose: False
      when: daemon_update.changed and mailcow_dir_result.matched > 0

    - name: Start mailcow stack
      import_role:
        name: roles/managed-mailcow
        tasks_from: start-mailcow.yml
      vars:
        docker_compose_path: "{{ mailcow_dir_result.files[0].path }}"
        verbose: False
      when: daemon_update.changed and mailcow_dir_result.matched > 0