The noVNC view at chrome.viktorbarzin.me went black: x11vnc (in the novnc
sidecar) attaches to the browser container's Xvfb over localhost:6099, and when
that container restarted (~8h ago, Chrome exited cleanly) x11vnc lost its X
connection and exited. Because the entrypoint ran x11vnc as an unsupervised
background child and then exec'd websockify as PID 1, the dead x11vnc was never
relaunched — :5900 stayed dead (a defunct zombie), websockify kept returning
'Connection refused', and the view was black until a manual pod restart.
Fix: the entrypoint now runs both x11vnc and websockify as supervised background
children and exits non-zero via 'wait -n' if either dies, so the kubelet restarts
the novnc container, which re-waits for Xvfb and relaunches x11vnc. The bridge
now self-heals across browser-container restarts. Mirrors the android-emulator
stack's supervision pattern. Architecture doc updated with the new failure mode,
diagnosis, immediate-recovery, and SHA-pin deploy note.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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