- hosts: all
  #  serial: 5

  tasks:

  - name: gather service facts
    service_facts:

  - name: check for docker
    set_fact:
      docker_running: "'docker.service' in ansible_facts.services and ansible_facts.services['docker.service']['state']=='running'"

  - name: check for running containers
    ansible.builtin.shell: docker ps | grep -v CONTAINER\ ID
    register: running_docker
    ignore_errors: true
    when: docker_running

  - name: verify that /docker exists
    stat:
      path: /docker
    register: my_docker
    when: running_docker and docker_running

  - name: update system
    ansible.builtin.apt:
      update_cache: yes
      autoclean: yes
      autoremove: yes
      upgrade: yes

  - name: pull docker updates
    command: find /docker -maxdepth 1 -type d -exec /bin/sh 'cd {}; [ -f .env ] && echo {} && docker compose pull' \;
    become: true
    become_user: root
    when: running_docker and my_docker.stat.exists and docker_running

  - name: install docker updates
    command: find /docker -maxdepth 1 -type d -exec /bin/sh 'cd {}; [ -f .env ] && echo {} && docker compose up -d' \;
    become: true
    become_user: root
    when: running_docker.stdout and my_docker.stat.exists and docker_running

  - name: prune system
    command: docker system prune -a -f
    become: true
    become_user: root
    when: running_docker.stdout and my_docker.stat.exists and docker_running