Retry a few times when the initial connection fails #243
Workflow file for this run
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| # 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: Test | |
| on: | |
| pull_request: | |
| push: | |
| branches-ignore: | |
| - "dependabot/**" | |
| - "pre-commit-ci-update-config" | |
| tags: ["**"] | |
| workflow_dispatch: | |
| defaults: | |
| run: | |
| # Both TigerVNC and TurboVNC reports "the input device is not a TTY" if | |
| # started without a TTY. GitHub Actions environments doesn't come with one, | |
| # so this provides one. | |
| # | |
| # ref: https://github.com/actions/runner/issues/241#issuecomment-842566950 | |
| # | |
| shell: script --quiet --return --log-out /dev/null --command "bash -e {0}" | |
| jobs: | |
| image-test: | |
| runs-on: ubuntu-22.04 | |
| timeout-minutes: 10 | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| include: | |
| - vncserver: tigervnc | |
| - vncserver: turbovnc | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: Build image | |
| run: | | |
| docker build --progress=plain --build-arg vncserver=${{ matrix.vncserver }} -t test . | |
| - name: (inside container) websockify --help | |
| run: | | |
| docker run test websockify --help | |
| - name: (inside container) vncserver -help | |
| run: | | |
| # -help flag is not available for TurboVNC, but it emits the -help | |
| # equivalent information anyhow if passed -help, but also errors. Due | |
| # to this, we fallback to use the errorcode of vncsrever -list. | |
| docker run test bash -c "vncserver -help || vncserver -list > /dev/null" | |
| - name: Install websocat, a test dependency" | |
| run: | | |
| wget -q https://github.com/vi/websocat/releases/download/v1.12.0/websocat.x86_64-unknown-linux-musl \ | |
| -O /usr/local/bin/websocat | |
| chmod +x /usr/local/bin/websocat | |
| - name: Test vncserver | |
| if: always() | |
| run: | | |
| container_id=$(docker run -d -it -p 5901:5901 test vncserver -xstartup /opt/install/jupyter_remote_desktop_proxy/share/xstartup -verbose -fg -geometry 1680x1050 -SecurityTypes None -rfbport 5901) | |
| sleep 1 | |
| echo "::group::Install netcat, a test dependency" | |
| docker exec --user root $container_id bash -c ' | |
| apt update | |
| apt install -y netcat | |
| ' | |
| echo "::endgroup::" | |
| docker exec -it $container_id timeout --preserve-status 1 nc -v localhost 5901 2>&1 | tee -a /dev/stderr | \ | |
| grep --quiet RFB && echo "Passed test" || { echo "Failed test" && TEST_OK=false; } | |
| echo "::group::vncserver logs" | |
| docker exec $container_id bash -c 'cat ~/.vnc/*.log' | |
| echo "::endgroup::" | |
| docker stop $container_id > /dev/null | |
| if [ "$TEST_OK" == "false" ]; then | |
| echo "One or more tests failed!" | |
| exit 1 | |
| fi | |
| - name: Test websockify'ed vncserver | |
| if: always() | |
| run: | | |
| container_id=$(docker run -d -it -p 5901:5901 test websockify --verbose --log-file=/tmp/websockify.log --heartbeat=30 5901 -- vncserver -xstartup /opt/install/jupyter_remote_desktop_proxy/share/xstartup -verbose -fg -geometry 1680x1050 -SecurityTypes None -rfbport 5901) | |
| sleep 1 | |
| echo "::group::Install websocat, a test dependency" | |
| docker exec --user root $container_id bash -c ' | |
| wget -q https://github.com/vi/websocat/releases/download/v1.12.0/websocat.x86_64-unknown-linux-musl \ | |
| -O /usr/local/bin/websocat | |
| chmod +x /usr/local/bin/websocat | |
| ' | |
| echo "::endgroup::" | |
| docker exec -it $container_id websocat --binary --one-message --exit-on-eof "ws://localhost:5901/" 2>&1 | tee -a /dev/stderr | \ | |
| grep --quiet RFB && echo "Passed test" || { echo "Failed test" && TEST_OK=false; } | |
| echo "::group::websockify logs" | |
| docker exec $container_id bash -c "cat /tmp/websockify.log" | |
| echo "::endgroup::" | |
| echo "::group::vncserver logs" | |
| docker exec $container_id bash -c 'cat ~/.vnc/*.log' | |
| echo "::endgroup::" | |
| docker stop $container_id > /dev/null | |
| if [ "$TEST_OK" == "false" ]; then | |
| echo "One or more tests failed!" | |
| exit 1 | |
| fi | |
| - name: Test project's proxy to websockify'ed vncserver | |
| if: always() | |
| run: | | |
| container_id=$(docker run -d -it -p 8888:8888 -e JUPYTER_TOKEN=secret test) | |
| sleep 3 | |
| curl --silent --fail 'http://localhost:8888/desktop/?token=secret' | grep --quiet 'Jupyter Remote Desktop Proxy' && echo "Passed get index.html test" || { echo "Failed get index.html test" && TEST_OK=false; } | |
| curl --silent --fail 'http://localhost:8888/desktop/static/dist/viewer.js?token=secret' > /dev/null && echo "Passed get viewer.js test" || { echo "Failed get viewer.js test" && TEST_OK=false; } | |
| # The first attempt often fails, but the second always(?) succeeds. | |
| # | |
| # This could be related to jupyter-server-proxy's issue | |
| # https://github.com/jupyterhub/jupyter-server-proxy/issues/459 | |
| # because the client/proxy websocket handshake completes before the | |
| # proxy/server handshake. This issue is tracked for this project by | |
| # https://github.com/jupyterhub/jupyter-remote-desktop-proxy/issues/105. | |
| # | |
| websocat --binary --one-message --exit-on-eof 'ws://localhost:8888/desktop-websockify/?token=secret' 2>&1 \ | |
| | tee -a /dev/stderr \ | |
| | grep --quiet RFB \ | |
| && echo "Passed initial websocket test" \ | |
| || { \ | |
| echo "Failed initial websocket test" \ | |
| && sleep 1 \ | |
| && websocat --binary --one-message --exit-on-eof 'ws://localhost:8888/desktop-websockify/?token=secret' 2>&1 \ | |
| | tee -a /dev/stderr \ | |
| | grep --quiet RFB \ | |
| && echo "Passed second websocket test" \ | |
| || { echo "Failed second websocket test" && TEST_OK=false; } \ | |
| } | |
| echo "::group::jupyter_server logs" | |
| docker logs $container_id | |
| echo "::endgroup::" | |
| echo "::group::vncserver logs" | |
| docker exec $container_id bash -c 'cat ~/.vnc/*.log' | |
| echo "::endgroup::" | |
| timeout 5 docker stop $container_id > /dev/null && echo "Passed SIGTERM test" || { echo "Failed SIGTERM test" && TEST_OK=false; } | |
| if [ "$TEST_OK" == "false" ]; then | |
| echo "One or more tests failed!" | |
| exit 1 | |
| fi | |
| # TODO: Check VNC desktop works, e.g. by comparing Playwright screenshots | |
| # https://playwright.dev/docs/test-snapshots |