---
- name: Set up the environment for the impress-2020 app
  hosts: webserver
  tasks:
    - name: Create web user group
      become: yes
      group:
        name: web

    - name: Add current user to web group
      become: yes
      user:
        name: "{{ ansible_user_id }}"
        group: web
        append: yes

    - name: Create the app folder
      become: yes
      file:
        path: /srv/impress-2020
        state: directory
        # Root and the `web` group may read/write this folder. Everyone else
        # may only read it.
        group: web
        mode: "u=rwx,g=rwx,o=rx"

    - name: Add Nodesource apt key
      become: yes
      apt_key:
        id: 9FD3B784BC1C6FC31A8A0A1C1655A0AB68576280
        url: https://deb.nodesource.com/gpgkey/nodesource.gpg.key

    - name: Add Node v16 apt repository
      become: yes
      apt_repository:
        repo: deb https://deb.nodesource.com/node_16.x focal main

    - name: Install Node v16
      become: yes
      apt:
        update_cache: yes
        name: nodejs
        state: present

    - name: Install Yarn
      become: yes
      npm:
        name: yarn
        global: yes

    - name: Install pm2
      become: yes
      npm:
        name: pm2
        global: yes

    - name: Create pm2 startup script
      # The current user is going to become the pm2 owner of the app server
      # process. They'll be able to manage it without `sudo`, including during
      # normal deploys, and run `pm2 monit` from their shell to see status.
      become: yes
      command: "pm2 startup systemd {{ ansible_user_id }} --hp /home/{{ ansible_user_id }}"

    - name: Create pm2 ecosystem file
      copy:
        content: >
          module.exports = {
            apps: [
              {
                name: "impress-2020",
                cwd: "/srv/impress-2020/current",
                script: "yarn",
                args: "start",
                instances: "max",
                exec_mode: "cluster",
              }
            ]
          }
        dest: "/srv/impress-2020/ecosystem.config.js"

    - name: Start pm2 ecosystem (even if the app isn't ready yet)
      command:
        chdir: "/srv/impress-2020"
        cmd: "pm2 start ecosystem.config.js"

    - name: Save pm2 startup script
      command: pm2 save

    - name: Install dependencies for the npm module node-canvas
      become: yes
      apt:
        update_cache: yes
        name:
          - build-essential
          - libcairo2-dev
          - libpango1.0-dev
          - libjpeg-dev
          - libgif-dev
          - librsvg2-dev