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fix: wait for Xvfb before starting x11vnc in Docker entrypoint (#4975)

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Shuchang Zheng 2026-03-04 16:25:39 -08:00 • committed by GitHub
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commit 9811ce6e3d
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entrypoint-skyvern.sh
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@ -57,6 +57,17 @@ xvfb=$!
DISPLAY=:99 xterm 2>/dev/null & DISPLAY=:99 xterm 2>/dev/null &
# Wait for Xvfb to be ready before starting x11vnc
for i in $(seq 1 10); do
xdpyinfo -display :99 >/dev/null 2>&1 && break
echo "Waiting for Xvfb to start (attempt $i/10)..."
sleep 1
done
if ! xdpyinfo -display :99 >/dev/null 2>&1; then
echo "ERROR: Xvfb failed to start on display :99 after 10 attempts"
exit 1
fi
echo "Starting x11vnc on display :99..." echo "Starting x11vnc on display :99..."
# VNC runs without a password (-nopw) because port 5900 is not exposed outside # VNC runs without a password (-nopw) because port 5900 is not exposed outside
# the container. Browser streaming reaches users via websockify on port 6080. # the container. Browser streaming reaches users via websockify on port 6080.