# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
ARG OWNER=jupyter
ARG BASE_CONTAINER=$OWNER/docker-stacks-foundation
FROM $BASE_CONTAINER

LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"

# Fix: https://github.com/hadolint/hadolint/wiki/DL4006
# Fix: https://github.com/koalaman/shellcheck/wiki/SC3014
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

USER root

# Install all OS dependencies for notebook server that starts but lacks all
# features (e.g., download as all possible file formats)
RUN apt-get update --yes && \
    apt-get install --yes --no-install-recommends \
    fonts-liberation \
    # - pandoc is used to convert notebooks to html files
    #   it's not present in aarch64 ubuntu image, so we install it here
    pandoc \
    # - run-one - a wrapper script that runs no more
    #   than one unique  instance  of  some  command with a unique set of arguments,
    #   we use `run-one-constantly` to support `RESTARTABLE` option
    run-one && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

USER ${NB_UID}

# Install Jupyter Notebook, Lab, and Hub
# Generate a notebook server config
# Cleanup temporary files
# Correct permissions
# Do all this in a single RUN command to avoid duplicating all of the
# files across image layers when the permissions change
WORKDIR /tmp
RUN mamba install --yes \
    'notebook' \
    'jupyterhub' \
    'jupyterlab' && \
    jupyter notebook --generate-config && \
    mamba clean --all -f -y && \
    npm cache clean --force && \
    jupyter lab clean && \
    rm -rf "/home/${NB_USER}/.cache/yarn" && \
    fix-permissions "${CONDA_DIR}" && \
    fix-permissions "/home/${NB_USER}"

ENV JUPYTER_PORT=8888
EXPOSE $JUPYTER_PORT

# Configure container startup
CMD ["start-notebook.sh"]

# Copy local files as late as possible to avoid cache busting
COPY start-notebook.sh start-singleuser.sh /usr/local/bin/
# Currently need to have both jupyter_notebook_config and jupyter_server_config to support classic and lab
COPY jupyter_server_config.py docker_healthcheck.py /etc/jupyter/

# Fix permissions on /etc/jupyter as root
USER root

# Legacy for Jupyter Notebook Server, see: [#1205](https://github.com/jupyter/docker-stacks/issues/1205)
RUN sed -re "s/c.ServerApp/c.NotebookApp/g" \
    /etc/jupyter/jupyter_server_config.py > /etc/jupyter/jupyter_notebook_config.py && \
    fix-permissions /etc/jupyter/

# HEALTHCHECK documentation: https://docs.docker.com/engine/reference/builder/#healthcheck
# This healtcheck works well for `lab`, `notebook`, `nbclassic`, `server` and `retro` jupyter commands
# https://github.com/jupyter/docker-stacks/issues/915#issuecomment-1068528799
HEALTHCHECK --interval=5s --timeout=3s --start-period=5s --retries=3 \
    CMD /etc/jupyter/docker_healthcheck.py || exit 1

# Switch back to jovyan to avoid accidental container runs as root
USER ${NB_UID}

WORKDIR "${HOME}"