FROM alpine:3.19 AS build
RUN --mount=type=cache,target=/var/cache/apk/,sharing=locked \
    apk update &&\
    apk add python3 python3-dev openjdk21-jre pipx gcc g++ musl-dev linux-headers which curl libffi-dev
RUN curl -O https://repo1.maven.org/maven2/dev/hcf/ganymede/ganymede/2.1.2.20230910/ganymede-2.1.2.20230910.jar
RUN adduser jovyan -u 1000 --system -s /bin/sh -h /home/jovyan
USER jovyan
WORKDIR /home/jovyan
RUN python -m venv venv
RUN venv/bin/pip install jupyter-core
RUN venv/bin/pip install notebook==5.7.16
ENV PATH="/home/jovyan/venv/bin/:$PATH"
RUN java -jar /ganymede-2.1.2.20230910.jar -i --copy-jar=true
RUN venv/bin/pip install jupyterhub

FROM alpine:3.19
RUN --mount=type=cache,target=/var/cache/apk/,sharing=locked \
    apk update &&\
    apk add python3 openjdk21-jre
RUN adduser jovyan -u 1000 --system -s /bin/sh -h /home/jovyan
USER jovyan
COPY --from=build /home/jovyan /home/jovyan
COPY jupyter_server_config.py docker_healthcheck.py /etc/jupyter/
COPY start-notebook.py start-singleuser.py /usr/local/bin/
RUN mkdir /home/jovyan/work
WORKDIR /home/jovyan/work
ENV JUPYTER_PORT=8888
EXPOSE $JUPYTER_PORT
ENV PATH="/home/jovyan/venv/bin/:$PATH"
CMD ["start-notebook.py"]

# 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=3s --timeout=1s --start-period=3s --retries=3 \
    CMD /etc/jupyter/docker_healthcheck.py || exit 1