application-jupyter.yml

#https://gitlab.com/rsc-surf-nl/rsc-plugins/-/blob/master/ansible/application-jupyter/application-jupyter.yml
- name: Install and configure Jupyter
  hosts:
    - all
    - localhost
  gather_facts: false
  tasks:
    - name: Wait for system to become reachable
      wait_for_connection:
        timeout: 300

    - name: Gather facts for first time
      setup:

    - name: Ubuntu
      when: ansible_distribution == 'Ubuntu'
      block:
      - name: Install required packages
        package:
          name:
          - apt-transport-https
          - python3
          - python3-setuptools
          - python3-pip
          - python3-matplotlib
          - jq
          - curl
          - nodejs
          - npm
          state: present

      - name: Ensure python 3 packages for Jupyter are installed
        pip:
          name: "{{ packages }}"
          executable: pip3
          extra_args: "-U"
        vars:
          packages:
          - jupyterlab  #==3.0.11
          - jupyterhub  #==1.3.0
          - virtualenv  #==20.4.3
          - jupyterlab-git  #==0.30.0b3
          - jinja2

      - name: Ensure configurable-http-proxy is installed
        npm:
          global: yes
          name: configurable-http-proxy
#          version: '4.3.2'

      - name: Ensure Jupyter configuration directory exists
        file:
          path: /etc/jupyterhub/
          state: directory

      - name: Ensure systemd directory exists
        file:
          path: /usr/lib/systemd/system
          state: directory

      - name: Create nginx location block
        copy:
          dest: /etc/nginx/app-location-conf.d/jupyterhub.conf
          mode: 0644
          content: |
            location / {
                proxy_pass http://127.0.0.1:8000;
                proxy_redirect http://localhost:8000/ $scheme://$host/;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header Host $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection $connection_upgrade;
                client_max_body_size 10G;
            }

      - name: Restart nginx
        service:
          name: nginx
          state: restarted

      - name: Ensure jupyter configuration is in place
        copy:
          dest: /etc/jupyterhub/jupyterhub_config.py
          content: |
            c.Spawner.default_url = '/lab?reset'
            c.Spawner.notebook_dir = '~'
            c.Authenticator.admin_users = {'{{ ssh_user | default('vagrant', true) }}'}
            c.Authenticator.delete_invalid_users = True

            c.JupyterHub.port = 8000

            c.JupyterHub.cleanup_servers = False
            c.JupyterHub.cleanup_proxy = False
                        
            c.JupyterHub.template_vars = {'announcement_login': 'Welcome to the AMUSE workspace'}


      - name: Ensure jupyter systemd config is in place
        copy:
          dest: /usr/lib/systemd/system/jupyterhub.service
          content: |
            [Unit]
            Description=Jypyter Hub daemon
            After=network.target

            [Service]
            Type=simple
            ExecStart=/usr/local/bin/jupyterhub -f /etc/jupyterhub/jupyterhub_config.py
            Restart=on-failure
            RestartSec=42s

            [Install]
            WantedBy=multi-user.target

      - name: Upgrade nbdime
        pip:
          name: nbdime
          extra_args: --upgrade

      - name: Reload jupyterhub service
        systemd:
          state: restarted
          daemon_reload: yes
          name: jupyterhub

      - name: Ensure Jupyterhub is started
        register: start_jupyterhub
        service:
          name: jupyterhub
          state: restarted
          enabled: yes

      - debug:
          msg: 'service_url: {"url": "https://{{ ansible_host }}", "tag": "web", "description": "Jupyter"}'
        when: (start_jupyterhub is succeeded)