# https://github.com/ruanbekker/ansible-docker-swarm/blob/master/roles/docker-swarm-init/tasks/main.yml
---
# Basically we put the exit code in the variable and use it later
- name: Check if swarm has already been initialized.
  shell: docker node ls
  register: swarm_status
  ignore_errors: true
  changed_when: false

- name: Initialize Docker Swarm.
  shell: >
    docker swarm init
    --advertise-addr={{ hostvars[inventory_hostname]['ansible_host'] }}:2377
  when: swarm_status.rc != 0
  run_once: true

- name: Get manager join token.
  shell: docker swarm join-token --quiet manager
  register: manager_token
  changed_when: false

- name: Store manager join token as fact.
  set_fact:
    manager_token: "{{ manager_token.stdout }}"

- name: Get worker join token.
  shell: docker swarm join-token --quiet worker
  register: worker_token
  changed_when: false

- name: Store worker join token as fact.
  set_fact:
    worker_token: "{{ worker_token.stdout }}"