setup-hacluster.yml

---
- hosts: hacluster
  become: true
  tasks:
    - name: Ensure portainer data directory exists for portainer volume bind
      file:
        state: directory
        path: "/opt/portainer/data"
    - name: Install gluster from apt
      apt:
        name: glusterfs-server
    - name: Start gluster service
      service:
        name: glusterfs-server
        state: started
    - name: Create brick directory
      file:
        path: /opt/brick1/gluster-homeassistant
        state: directory
        recurse: yes
    - name: Create home assistant gluster volume
      gluster_volume:
        state: present
        name: gluster-homeassistant
        bricks: /opt/brick1/gluster-homeassistant
        rebalance: yes
        cluster: "{{ groups['hacluster'] }}"
        force: yes
      run_once: true
    - name: Start home assistant gluster volume
      gluster_volume:
        state: started
        name: gluster-homeassistant
    - name: Mount home assistant gluster volume
      mount:
        path: /var/hacluster
        src: localhost:/gluster-homeassistant
        fstype: glusterfs
        state: mounted
    - name: Create HA and mosquitto directories and copy default configuration files there
      block:
        - name: Create home assistant directory
          file:
            state: directory
            path: "/var/hacluster/homeassistant/"
        - name: Create mosquitto directory (and config directory)
          file:
            state: directory
            path: "/var/hacluster/mosquitto/config"
        - name: Copy default mosquitto.conf to cluster
          copy:
            src: mosquitto.conf
            dest: /var/hacluster/mosquitto/config/mosquitto.conf
            force: yes
        - name: Copy default configuration.yaml with db recorder to cluster
          copy:
            src: configuration.yaml
            dest: /var/hacluster/homeassistant/configuration.yaml
            force: no
        - name: Create groups.yaml file
          file:
            state: touch
            path: /var/hacluster/homeassistant/groups.yaml
        - name: Create automations.yaml file
          file:
            state: touch
            path: /var/hacluster/homeassistant/automations.yaml
        - name: Create scripts.yaml file
          file:
            state: touch
            path: /var/hacluster/homeassistant/scripts.yaml
      run_once: true  #Gluster should be working so we need to copy only to one of the hosts
    - name: Setup cron job to restart Avahi service every minute
      cron:
        name: "Restart Avahi for hacluster"
        job: "sudo service avahi-daemon restart"
    
# Docker part
- hosts: hacluster[0]
  become: true
  tasks:
    # - name: "Making sure there is only one initial node defined in ansible group hacluster-initial.."
    #   assert:
    #     that:
    #       - "groups['hacluster-initial'] | length == 1"
    #     msg: "You must define exactly one host in the hacluster-initial group!"
    - name: Initialize a docker swarm
      docker_swarm:
       state: present
    - name: Parse and save the manager join token
      shell: docker swarm join-token -q manager
      register: manager_token
- hosts: hacluster[1:]
  become: true
  tasks:
    # - debug:
    #     msg: Join token {{ hostvars[groups['hacluster'][0]]['manager_token']['stdout'] }}
    # - debug:
    #     msg: "IP of init host: {{  hostvars[groups['hacluster'][0]]['ansible_default_ipv4']['address'] }}:2377"
    # - debug:
    #     msg: "Current ip: {{ ansible_default_ipv4.address }}"

    # - name: Join the docker swarm
    #   docker_swarm:
    #     state: join
    #     join_token: "{{ hostvars[groups['hacluster'][0]]['manager_token']['stdout'] }}"
    #     remote_addrs: "{{ hostvars[groups['hacluster'][0]]['ansible_default_ipv4']['address'] }}:2377"
    #     advertise_addr:  "{{ ansible_default_ipv4.address }}"
    
    # Use this (from https://caylent.com/manage-docker-swarm-using-ansible/) instead of the official role above due to problems with ansible python modules
    - name: "Get docker info"
      shell: docker info
      register: docker_info
      changed_when: false
    - name: "Join the docker swarm"
      shell: "docker swarm join --token {{ hostvars[groups['hacluster'][0]]['manager_token']['stdout'] }} {{ hostvars[groups['hacluster'][0]]['ansible_default_ipv4']['address'] }}:2377"
      when: docker_info.stdout.find("Swarm{{ ":" }} inactive") != -1
      retries: 3
      delay: 20

- hosts: hacluster[0]
  become: true
  tasks:
    - name: Copy docker-compose
      copy:
        src: docker-compose.yml
        dest: /var/hacluster/docker-compose.yml
        force: yes
    - name: Copy secrets
      copy:
        src: .secrets/
        dest: /var/hacluster/.secrets
        force: yes

    # - name: "Start the hacluster docker-compose stack"
    #   docker_compose:
    #     project_src: /var/hacluster/
    #     state: present
    
    # Use this instead of the official role above due to problems with ansible python modules
    - name: "Start the hacluster docker-compose stack"
      command: "docker stack deploy -c docker-compose.yml hacluster"
      args:
        chdir: /var/hacluster/