- name: Setup docker
  become: "{{ false if inventory_hostname == 'nas.home.lan' else true }}"
  collections:
    - community.docker
  block:
    - name: Facts
      ansible.builtin.setup:
    - name: Install Docker SDK for Python
      pip:
        name: docker>=5.0.0
        executable: pip3
        break_system_packages: true
    - name: Initialize swarm
      docker_swarm:
        state: present
        listen_addr: "{{ ansible_default_ipv4.address }}:2377"
      register: swarm_init
      when: inventory_hostname == "vm01.home.lan"

    - name: Show join tokens
      ansible.builtin.debug:
        msg:
          - "Manager join token: {{ swarm_init.swarm_facts['JoinTokens']['Manager'] }}"
          - "Worker join token: {{ swarm_init.swarm_facts['JoinTokens']['Worker'] }}"
      when: inventory_hostname == "vm01.home.lan"

    - name: Join swarm as worker
      shell: docker swarm join --token {{ hostvars['vm01.home.lan']['swarm_init'].swarm_facts['JoinTokens']['Worker'] }} {{ hostvars['vm01.home.lan']['ansible_default_ipv4']['address'] }}:2377
      when: inventory_hostname != "vm01.home.lan"