---

- name: install docker
  apt:
    force_apt_get: yes
    name:
      - docker.io
      - docker-compose-v2
      - rsyslog

- name: configure rsyslog to listen for UDP
  lineinfile:
    path: /etc/rsyslog.conf
    regex: "{{ item.regex }}"
    line: "{{ item.line }}"
  with_items:
    - regex: 'load="imudp"'
      line: 'module(load="imudp")'
    - regex: 'type="imudp"'
      line: 'input(type="imudp" port="514")'
  register: rsyslogconf

- name: rsyslog conf for docker logs
  copy:
    dest: /etc/rsyslog.d/10-docker.conf
    content: |
      $template DockerLogs, "/var/log/docker_%syslogtag:R,ERE,1,ZERO:.*docker/([^\[]+)--end%.log"
      if $programname startswith 'docker/' then -?DockerLogs
      & stop
  register: dockerlogs

- name: restart rsyslog
  service:
    name: rsyslog
    state: restarted
  when: rsyslogconf.changed or dockerlogs.changed

- name: Configure docker daemon
  copy:
    dest: /etc/docker/daemon.json
    content: |
      {
        "log-driver": "syslog",
        "log-opts": {
          "syslog-address": "udp://127.0.0.1:514",
          "syslog-facility": "daemon",
          "tag": "{{ '{{' }}.DaemonName{{ '}}' }}/{{ '{{' }}.Name{{ '}}' }}"
        }
      }
  notify: reboot
# yep we reboot for this