#change-detection ansible playbook

1. change-detection.yml

---
- hosts: all
  remote_user: onionadmin
  become: true
  gather_facts: no

  tasks:
    - name: install nodejs LTS (v16) repo
      shell:
        cmd: 'curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash -'
        creates: /etc/apt/sources.list.d/nodesource.list
        warn: false

    - name: add partner repo
      apt_repository:
        repo: deb http://archive.canonical.com/ubuntu focal partner
        state: present

    #not sure if this is really needed
    - name: accept Microsoft EULA agreement for ttf-mscorefonts-installer using debconf
      debconf:
        name: ttf-mscorefonts-installer
        question: msttcorefonts/accepted-mscorefonts-eula
        vtype: select
        value: true

    - name: install dependencies
      apt:
        name:
          - python3-dev
          - python3-pip
          - nodejs
          - build-essential 
          - ca-certificates 
          - curl 
          - dumb-init 
          - ffmpeg 
          - fontconfig 
          - fonts-freefont-ttf 
          - fonts-gfs-neohellenic 
          - fonts-indic 
          - fonts-ipafont-gothic 
          - fonts-kacst 
          - fonts-liberation 
          - fonts-noto-cjk 
          - fonts-noto-color-emoji 
          - fonts-roboto 
          - fonts-thai-tlwg 
          - fonts-ubuntu 
          - fonts-wqy-zenhei 
          - gconf-service 
          - git 
          - libappindicator1 
          - libappindicator3-1 
          - libasound2 
          - libatk-bridge2.0-0 
          - libatk1.0-0 
          - libc6 
          - libcairo2 
          - libcups2 
          - libdbus-1-3 
          - libexpat1 
          - libfontconfig1 
          - libgbm-dev 
          - libgbm1 
          - libgcc1 
          - libgconf-2-4 
          - libgdk-pixbuf2.0-0 
          - libglib2.0-0 
          - libgtk-3-0 
          - libnspr4 
          - libnss3 
          - libpango-1.0-0 
          - libpangocairo-1.0-0 
          - libstdc++6 
          - libx11-6 
          - libx11-xcb1 
          - libxcb1 
          - libxcomposite1 
          - libxcursor1 
          - libxdamage1 
          - libxext6 
          - libxfixes3 
          - libxi6 
          - libxrandr2 
          - libxrender1 
          - libxss1 
          - libxtst6 
          - locales 
          - lsb-release 
          - msttcorefonts 
          - pdftk 
          - unzip 
          - wget 
          - xdg-utils 
          - xvfb

    - name: upgrade pip
      pip: 
        name: pip
        state: latest

    - name: install pip requirements
      pip:
        name: 
          - changedetection.io
          - playwright
        state: latest

    - name: npm install puppeteer
      npm:
        name: puppeteer
        state: latest
        global: yes

    - name: create folders in /opt
      file:
        name: /opt/{{ item }}
        state: directory
        owner: onionsystem
        group: onionsystem
      with_items:
        - 'change-detection'
        - browserless

    - name: git clone browserless
      git:
        repo: https://github.com/browserless/chrome
        dest: /opt/browserless
        force: no
      ignore_errors: yes
      become_user: onionsystem

    - name: npm install
      command:
        cmd: npm install
      args:
        chdir: /opt/browserless
      become_user: onionsystem

    - name: npm run build
      command:
        cmd: npm run build
      args:
        chdir: /opt/browserless
      become_user: onionsystem

    - name: npm prune production
      command:
        cmd: npm prune --production
      args:
        chdir: /opt/browserless
      become_user: onionsystem

    - name: copy systemd service files
      copy:
        src: templates/change-detection/etc/systemd/system
        dest: /etc/systemd/system/
        owner: root
        group: root
        mode: '0644'

2. change-detection.service

[Unit]
Description=change-detection.io service
After=network.target browserless.service
Wants=browserless.service

[Service]
User=onionsystem
Group=onionsystem
WorkingDirectory=/opt/change-detection
Environment=PLAYWRIGHT_DRIVER_URL=ws://127.0.0.1:3000/?stealth=1&--disable-web-security=true
ExecStart=/usr/local/bin/changedetection.io -d /opt/change-detection -p 5000
SyslogIdentifier=change-detection

[Install]
WantedBy=default.target

3. browserless.service

[Unit]
Description=browserless service
After=network.target

[Service]
User=onionsystem
Group=onionsystem
#Better to use an environment file
#https://fedoraproject.org/wiki/Packaging:Systemd#EnvironmentFiles_and_support_for_.2Fetc.2Fsysconfig_files
Environment=APP_DIR=/opt/browserless
Environment=PLAYWRIGHT_BROWSERS_PATH=/opt/browserless
Environment=CONNECTION_TIMEOUT=60000
Environment=HOST=127.0.0.1
Environment=LANG="C.UTF-8"
Environment=NODE_ENV=production
Environment=PORT=3000
Environment=WORKSPACE_DIR=/opt/browserless/workspace
WorkingDirectory=/opt/browserless
ExecStart=/opt/browserless/start.sh
SyslogIdentifier=browserless

[Install]
WantedBy=default.target