docker_swarm_init.yml

- name: Docker Swarm - Checking Swarm Mode status
  command: "docker info"
  register: "docker_info"
  changed_when: false
  check_mode: no
  become: true
  tags: [docker-swarm]

- name: Docker Swarm - Initializing Docker Swarm Mode on first manager
  command: >
          docker swarm init
          --listen-addr {{ docker_swarm_addr }}:{{ docker_swarm_port }}
          --advertise-addr {{ docker_swarm_addr }}
  become: true
  when: >
        'Swarm: inactive' in docker_info.stdout and
        inventory_hostname == docker_swarm_primary_manager
  tags: [docker-swarm]

- name: Docker Swarm - Capturing Docker Swarm Worker join-token
  command: "docker swarm join-token -q worker"
  changed_when: false
  register: "docker_swarm_worker_token"
  become: true
  when: >
        inventory_hostname == docker_swarm_primary_manager
  tags: [docker-swarm]

- name: Docker Swarm - Capturing Docker Swarm Manager join-token
  command: "docker swarm join-token -q manager"
  changed_when: false
  register: "docker_swarm_manager_token"
  become: true
  when: >
        inventory_hostname == docker_swarm_primary_manager
  tags: [docker-swarm]

- name: Docker Swarm - Defining Docker Swarm Manager Address
  set_fact:
    docker_swarm_manager_address: "{{ docker_swarm_addr }}:{{ docker_swarm_port }}"
  changed_when: false
  when: >
        inventory_hostname == docker_swarm_primary_manager
  tags: [docker-swarm]

- name: Docker Swarm - Defining Docker Swarm Manager Address
  set_fact:
    docker_swarm_manager_address: "{{ hostvars[docker_swarm_primary_manager]['docker_swarm_manager_address'] }}"
  changed_when: false
  when: >
        inventory_hostname != docker_swarm_primary_manager
  tags: [docker-swarm]

- name: Docker Swarm - Defining Docker Swarm Manager join-token
  set_fact:
    docker_swarm_manager_token: "{{ hostvars[docker_swarm_primary_manager]['docker_swarm_manager_token'] }}"
  changed_when: false
  when: >
        inventory_hostname != docker_swarm_primary_manager
  tags: [docker-swarm]

- name: Docker Swarm - Defining Docker Swarm Worker join-token
  set_fact:
    docker_swarm_worker_token: "{{ hostvars[docker_swarm_primary_manager]['docker_swarm_worker_token'] }}"
  changed_when: false
  when: >
        inventory_hostname != docker_swarm_primary_manager
  tags: [docker-swarm]

- name: Docker Swarm - Joining Additional Docker Swarm Managers To Cluster
  command: >
          docker swarm join
          --listen-addr {{ docker_swarm_addr }}:{{ docker_swarm_port }}
          --advertise-addr {{ docker_swarm_addr }}
          --token {{ docker_swarm_manager_token.stdout }}
          {{ docker_swarm_manager_address }}
  become: true
  when: >
        inventory_hostname != docker_swarm_primary_manager and
        inventory_hostname not in groups[docker_swarm_workers_ansible_group] and
        'Swarm: active' not in docker_info.stdout and
        'Swarm: pending' not in docker_info.stdout
  tags: [docker-swarm]

- name: Docker Swarm - Joining Docker Swarm Workers To Cluster
  command: >
         docker swarm join
         --listen-addr {{ docker_swarm_addr }}:{{ docker_swarm_port }}
         --advertise-addr {{ docker_swarm_addr }}
         --token {{ docker_swarm_worker_token.stdout }}
         {{ docker_swarm_manager_address }}
  become: true
  when: >
        inventory_hostname in groups[docker_swarm_workers_ansible_group] and
        'Swarm: active' not in docker_info.stdout and
        'Swarm: pending' not in docker_info.stdout
  tags: [docker-swarm]