Fix Dockerfile (currently broken as there is no jovyan group)

.github/workflows/build.yaml

@@ -0,0 +1,42 @@
+# This is a GitHub workflow defining a set of jobs with a set of steps.
+# ref: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
+#
+name: Build
+
+on:
+  pull_request:
+    paths-ignore:
+      - "docs/**"
+      - ".github/workflows/*.yaml"
+      - "!.github/workflows/build.yaml"
+  push:
+    paths-ignore:
+      - "docs/**"
+      - ".github/workflows/*.yaml"
+      - "!.github/workflows/build.yaml"
+    branches-ignore:
+      - "dependabot/**"
+      - "pre-commit-ci-update-config"
+    tags: ["**"]
+  workflow_dispatch:
+
+jobs:
+  container:
+    runs-on: ubuntu-22.04
+    timeout-minutes: 10
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build image
+        run: |
+          docker build -t jupyter-remote-desktop-proxy .
+
+      - name: Smoke test image
+        run: |
+          docker run -d -p 8888:8888 jupyter-remote-desktop-proxy
+          sleep 10
+          curl 'http://localhost:8888/desktop/?token=secret' | grep 'Modified from novnc_lite.html example in noVNC'
+
+      # TODO: Check VNC desktop works, e.g. by comparing Playwright screenshots
+      # https://playwright.dev/docs/test-snapshots

Dockerfile

@@ -20,10 +20,9 @@ RUN apt-get -y -q update \
 
 USER $NB_USER
 
-RUN mamba install --yes websockify
+COPY --chown=$NB_UID:$NB_GID jupyter_remote_desktop_proxy /opt/install/jupyter_remote_desktop_proxy
+COPY --chown=$NB_UID:$NB_GID environment.yml setup.py MANIFEST.in README.md LICENSE /opt/install/
 
-COPY --chown=$NB_USER:$NB_USER jupyter_remote_desktop_proxy /opt/install/jupyter_remote_desktop_proxy
-COPY --chown=$NB_USER:$NB_USER setup.py MANIFEST.in README.md LICENSE /opt/install/
-
-RUN cd /opt/install \
- && pip install -e .
+RUN cd /opt/install && \
+    . /opt/conda/bin/activate && \
+    mamba env update --quiet --file environment.yml