displayed the ted notebook on raspi-os

roles/jupyter/defaults/main.yml

@@ -1,3 +1,4 @@
 notebook_dir: /opt/iiab/notebook
 jupyter_venv: /opt/iiab/jupyter 
 jupyterhub_url: https://github.com/jupyterhub/the-littlest-jupyterhub
+jupyterhub_port: 8000

roles/jupyter/tasks/install.yml

@@ -3,9 +3,29 @@
     state: directory
     path: '{{ item }}'
   with_items:
-     - '{{ notebook_dir }}/etc/jupyter'
-     - '{{ notebook_dir }}/etc/jupyterhub'
-     - '{{ notebook_dir }}/etc/systemd'
+     - '{{ jupyter_venv }}/etc/jupyter'
+     - '{{ jupyter_venv }}/etc/jupyterhub'
+     - '{{ jupyter_venv }}/etc/systemd'
+
+- name: "Set 'nodejs_install: True' and 'nodejs_enabled: True'"
+  set_fact:
+    nodejs_install: True
+    nodejs_enabled: True
+
+- name: NODEJS - run 'nodejs' role (attempt to install & enable Node.js)
+  include_role:
+    name: nodejs
+
+- name: FAIL (STOP THE INSTALL) IF 'nodejs_installed is undefined'
+  fail:
+    msg: "Jupyter install cannot proceed, as Node.js is not installed."
+  when: nodejs_installed is undefined
+
+- name: use npm to install configurable http proxy
+  npm:
+      name: configurable-http-proxy
+      global: yes
+      state: latest
 
 - name: Use pip to install into a virtual environment
   pip:
@@ -13,6 +33,8 @@
        - pip
        - wheel
        - ipywidgets
+       - jupyterhub
+       - jupyterlab
     virtualenv: "{{ jupyter_venv }}"    # /opt/iiab/jupyter
     virtualenv_site_packages: no
     virtualenv_command: /usr/bin/virtualenv
@@ -20,13 +42,11 @@
     extra_args: "--no-cache-dir"
   when: internet_available
     
-- name: Fetch the Littlest JupyterHub code
-  ansible.builtin.git:
-     repo: '{{ jupyterhub_url }} 
-     dest: '{{ jupyter_venv }}'
-
-- name: Install a bootstrap.py that permits installation on other than Ubunt
+- name: Install the config file for jupyterhub
   template:
-     src: bootstrap.py
-     dest: '{{ jupyter_venv }}'
-     
+      src: jupyterhub_config.py
+      dest: '{{ jupyter_venv }}/env/jupyterhub/'
+- name: Use systemd to start jupyterhub
+  template:
+      src: jupyter.service
+      dest: /etc/systemd/system/

roles/jupyter/templates/jupyter.service

@@ -4,8 +4,8 @@ After=syslog.target network.target
 
 [Service]
 User=hubuser
-Environment="PATH=/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/iiab/jupyterhub/bin"
-ExecStart=/opt/iiab/jupyterhub/bin/jupyterhub -f /opt/iiab/jupyterhub/etc/jupyterhub/jupyterhub_config.py
+Environment="PATH=/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:{{ jupyter_venv }}/bin"
+ExecStart={{ jupyter_venv }}/bin/jupyterhub -f {{ jupyter_venv }}/etc/jupyterhub/jupyterhub_config.py
 
 [Install]
 WantedBy=multi-user.target

roles/network/templates/gateway/iiab-gen-iptables

@@ -73,6 +73,7 @@ pbx_data_ports={{ pbx_data_ports }}
 sugarizer_port={{ sugarizer_port }}
 transmission_http_port={{ transmission_http_port }}
 transmission_peer_port={{ transmission_peer_port }}
+jupyterhub_port={{ jupyterhub_port }}
 
 samba_udp_ports={{ samba_udp_ports }}
 samba_tcp_mports={{ samba_tcp_mports }}
@@ -159,7 +160,8 @@ if [ "$wan" != "none" ]; then
 
         $IPTABLES -A INPUT -p tcp --dport $sugarizer_port -m state --state NEW -i $wan -j ACCEPT
         $IPTABLES -A INPUT -p tcp --dport $transmission_http_port -m state --state NEW -i $wan -j ACCEPT
-        $IPTABLES -A INPUT -p tcp --dport $transmission_peer_port -m state --state NEW -i $wan -j ACCEPT
+        $IPTABLES -A INPUT -p tcp --dport $transmission_http_port -m state --state NEW -i $wan -j ACCEPT
+        $IPTABLES -A INPUT -p tcp --dport $jupyterhub_port -m state --state NEW -i $wan -j ACCEPT
     fi
 
     # 4 = ssh + http-or-https + common IIAB services + Samba