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djlabhub-docker

Table of Contents

Introduction

This image is made for building customized jupyterhub profile/server option images. It was originally based on datajoint/djlab all the way up to datajoint/djbase. To reduce the maintenance effort, we decided to use quay.io/jupyter/minimal-notebook as the base image. We also kept the previous implementation under legacy directory, just in case there are unforeseen issues with the new implementation.

Note: datajoint/djlab is deprecated since the singleuser part of this image overlaps with the djlab image, it'll run jupyter lab server by default.

Quick Start

Directory explain:

  • ~/legacy contains the old implementation of the image
  • ~/singleuser is used to build the jupyterhub profile images
  • ~/hub is a Docker based jupyterhub host server using DockerSpawner and Docker-in-Docker to launch jupyterhub singleuser server as a Docker container, in order to locally validate the singleuser images for development purpose.(Don't recommend to use this in production, due to the security concern of Docker-in-Docker)

Build Jupyterhub Singleuser Image

Configuration

We put all the dependencies in the ~/singleuser/config directory including:

  • apt_install.sh for system level dependencies
  • pip_requirements.txt for python packages
  • before_start_hook.sh to run before the jupyterhub singleuser server starts, doc
  • jupyter**config.py for jupyter related configurations
    • Jupyter Server Config, doc
    • Jupyter Notebook Server Config, doc
    • Jupyter Lab Server Config, doc
    • Optionally, you can add more configurations for ipython kernel, etc.

Note: We added jupyter**config.py to extract configurations from the environment variables for some that are not supported to set by environment variables directly. The goal is to make the jupyterhub profile list clear and easy to maintain.

Build

# make the .env file from the example.env
set -a && source .env && set +a
docker compose build

# To run this image as local jupyterlab server for testing
# The default password is set by the `JUPYTER_SERVER_APP_PASSWORD` in the container
docker compose up djlab

Test in Local Jupyterhub

Local Jupyterhub Configuration

Similarly to the singleuser image, we the jupyterhub_config.py in the ~/hub/config directory, you need to modify the c.DockerSpawner.container_image and c.DockerSpawner.environment to configure your singleuser server container.

Start Local Jupyterhub

Note: Local Jupyterhub requires jupyterhub host container to mount /var/run/docker.sock:/var/run/docker.sock to enable Docker-in-Docker, doc

# make the .env file from the example.env
# OAUTH2 related configurations are not necessary
# since the c.JupyterHub.authenticator_class = "jupyterhub.auth.DummyAuthenticator"
set -a && source .env && set +a

# It takes any random username and password
docker compose up