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fix: bind server to 0.0.0.0 and add meaningful health check #6

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fix: bind server to 0.0.0.0 and add meaningful health check #6

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ca9990e
fix: replace false-positive health check with process check
jimscard Mar 30, 2026
ba26fbb
fix: bind MCP server to 0.0.0.0 so Docker port forwarding works
jimscard Mar 30, 2026
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4 changes: 4 additions & 0 deletions Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -28,5 +28,9 @@ RUN mkdir -p /home/playwright/.npm && chown -R playwright:playwright /home/playw
# Switch to non-root user
USER playwright

# Add health check to monitor container health
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
CMD pgrep -f "@playwright/mcp" > /dev/null || exit 1

# Set the entrypoint
ENTRYPOINT ["/app/entrypoint.sh"]
6 changes: 3 additions & 3 deletions entrypoint.sh
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Expand Up @@ -11,10 +11,10 @@ if [ "$HEADLESS" = "true" ]; then
MCP_ARGS="$MCP_ARGS --headless"
fi

# Add --port if MCP_PORT is set (for SSE connection)
# This allows SSE connection even when HEADLESS=true
# Add --port and --host if MCP_PORT is set (for SSE connection)
# --host 0.0.0.0 is required so Docker port forwarding can reach the server
if [ -n "$MCP_PORT" ]; then
MCP_ARGS="$MCP_ARGS --port $INTERNAL_PORT"
MCP_ARGS="$MCP_ARGS --port $INTERNAL_PORT --host 0.0.0.0"
fi

# Add --isolated if ISOLATED environment variable is true
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