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# DO Community Playbooks: Docker
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---
- hosts: all
  become: true
  vars_files:
    - vars/default.yml

  tasks:
    - name: Pull Backend image
      docker_image:
        name: "{{ backend_image }}"
        source: pull
        state: present
        force_source: yes

    - name: Upload the .env file
      template:
        src: "files/.env"
        dest: "/var/lib/{{ host_directory }}/.env"

    - name: Create Backend container
      docker_container:
        name: "{{ backend_container }}"
        image: "{{ backend_image }}"
        state: started
        restart_policy: "unless-stopped"
        command: sh -c "cp -r /app/public/ / && rm -rf tmp/pids && ./bin/rails s -p 3003 -b '0.0.0.0'"
        env_file: "/var/lib/{{ host_directory }}/.env"
        links:
          - "postgres:db"
        published_ports:
          - "127.0.0.1:3003:3003"
        volumes:
          - "/var/lib/{{ host_directory }}/frontend:/public"

    - name: Check if Nginx conf file exists
      stat: path="/etc/nginx/sites-available/{{ http_conf }}"
      register: status

    - name: No need to reload Nginx
      debug: msg= {{ "No need to reload Nginx as sites-available entries have already been created" }}

    - name: Set Nginx conf file
      when: status.stat.exists == false
      template:
        src: "files/nginx.conf.j2"
        dest: "/etc/nginx/sites-available/{{ http_conf }}"

    - name: Enable new site
      when: status.stat.exists == false
      file:
        src: "/etc/nginx/sites-available/{{ http_conf }}"
        dest: "/etc/nginx/sites-enabled/{{ http_conf }}"
        state: link
      notify: Reload Nginx

  handlers:
    - name: Reload Nginx
      service:
        name: nginx
        state: reloaded