added jupyterhub image

jupyterhub/Dockerfile

@@ -0,0 +1,31 @@
+FROM alpine:latest AS base
+
+ARG VERSION
+
+RUN --mount=type=cache,target=/var/cache/apk apk update
+RUN --mount=type=cache,target=/var/cache/apk apk add python3 nodejs libcurl
+
+RUN adduser -D -u 1000 jupyterhub
+RUN mkdir -p /var/lib/jupyterhub 
+RUN chown jupyterhub:jupyterhub /var/lib/jupyterhub
+
+FROM base AS build
+USER root
+RUN --mount=type=cache,target=/var/cache/apk apk add npm curl-dev gcc musl-dev python3-dev
+RUN --mount=type=cache,target=/home/jupyterhub/.cache/pip npm install -g configurable-http-proxy
+USER jupyterhub
+WORKDIR /var/lib/jupyterhub
+RUN python3 -m venv .
+RUN --mount=type=cache,target=/home/jupyterhub/.cache/pip ./bin/pip install "jupyterhub==${VERSION}" jupyterhub_idle_culler dockerspawner psycopg2-binary oauthenticator pycurl
+
+
+FROM base AS release
+USER root
+COPY --from=build /usr/local/lib/node_modules /usr/local/lib/node_modules
+RUN ln -s ../lib/node_modules/configurable-http-proxy/bin/configurable-http-proxy /usr/local/bin/configurable-http-proxy
+COPY --from=build /var/lib/jupyterhub /var/lib/jupyterhub
+USER jupyterhub
+WORKDIR /home/jupyterhub
+ENV PATH="/var/lib/jupyterhub/bin/:$PATH"
+EXPOSE 43080
+ENTRYPOINT ["jupyterhub"]