- name: Install Traefik
  hosts: lb
  gather_facts: yes
  become: yes
  tasks:
  - name: Create the traefik user
    user:
      name: traefik
      system: true
      home: '/opt/traefik'
      create_home: false
      state: present

  - name: Skaffold /opt/traefik
    file:
      path: '{{ item }}'
      state: directory
      owner: traefik
    loop:
    - /opt/traefik/etc
    - /opt/traefik/etc/conf.d
    - /opt/traefik/bin

  - name: Install traefik
    unarchive:
      src: traefik_v2.6.1_linux_amd64.tar.gz
      dest: /opt/traefik/bin
      owner: traefik

  - name: Install the systemd units
    template:
      src: traefik.service
      dest: /etc/systemd/system/traefik.service
    register: systemd_unit
    tags: config

  - name: Install the systemd unit configuration
    template:
      src: traefik.env
      dest: /opt/traefik/etc/traefik.env
    register: unit_config
    tags: config

  - name: Reload systemd
    systemd:
      daemon-reload: yes
    when: systemd_unit.changed
    tags: config

  - name: Configure traefik
    template:
      src: traefik.yaml
      dest: /opt/traefik/etc/traefik.yaml
    register: traefik_config
    tags: config

  - name: Configure traefik
    template:
      src: traefik-keycloak.yaml
      dest: /opt/traefik/etc/conf.d/keycloak.yaml
    tags: config

  - name: Start traefik
    systemd:
      name: traefik.service
      state: restarted
    when: systemd_unit.changed or unit_config.changed or traefik_config.changed
    tags: config