update container port mapping

docker/acc-server/Dockerfile

@@ -1,6 +1,5 @@
 # ACC Server container: Wine + accServer.exe
-# Game files are mounted read-only from the shared acc-game volume.
-# Per-server config files are mounted read-write from the manager's config volume.
+# Game files are bind-mounted from the host at /acc/game.
 FROM debian:bookworm-slim
 
 # Install Wine, Xvfb (headless display for Wine), and minimal runtime deps.
@@ -12,6 +11,7 @@ RUN dpkg --add-architecture i386 && \
         wine64 \
         xvfb \
         ca-certificates \
+        tcpdump \
         && \
     rm -rf /var/lib/apt/lists/*
 
@@ -19,6 +19,10 @@ RUN mkdir -p /tmp/.X11-unix && chmod 1777 /tmp/.X11-unix
 
 WORKDIR /root
 
+ENV WINEARCH=win64
+ENV WINEPREFIX=/root/.wine
+ENV WINEDEBUG=-all
+
 # Copy entrypoint script.
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
@@ -26,11 +30,6 @@ RUN chmod +x /entrypoint.sh
 # Bind-mounted by DockerRuntime.Create: per-server game install (rw)
 VOLUME ["/acc/game"]
 
-# Default server port — overridden at runtime via SERVER_PORT env var.
 ENV SERVER_PORT=9600
-ENV WINEDEBUG=-all
-
-EXPOSE ${SERVER_PORT}/tcp
-EXPOSE ${SERVER_PORT}/udp
 
 ENTRYPOINT ["/entrypoint.sh"]

docker/acc-server/entrypoint.sh

@@ -1,26 +1,78 @@
 #!/bin/bash
 set -e
 
-# Use a display number derived from the server port to avoid conflicts
-# between containers (each server gets its own unique display).
 DISPLAY_NUM=$((SERVER_PORT % 1000 + 100))
 export DISPLAY=:${DISPLAY_NUM}
 
-# Clean up any stale X lock from a previous container run.
 rm -f /tmp/.X${DISPLAY_NUM}-lock /tmp/.X11-unix/X${DISPLAY_NUM} 2>/dev/null || true
 
 Xvfb ${DISPLAY} -screen 0 1024x768x16 -nolisten tcp &
 XVFB_PID=$!
 
+TCPDUMP_PID=""
+
 cleanup() {
     echo "Stopping ACC server..."
-    kill $XVFB_PID 2>/dev/null || true
+    [ -n "${TCPDUMP_PID}" ] && kill "${TCPDUMP_PID}" 2>/dev/null || true
+    kill "${XVFB_PID}" 2>/dev/null || true
 }
-trap cleanup SIGTERM SIGINT
+trap cleanup SIGTERM SIGINT EXIT
+
+# Initialize Wine prefix (no-op if already done)
+wineboot -u 2>/dev/null
 
 mkdir -p /acc/game/log
 
-echo "Starting ACC server on port ${SERVER_PORT}..."
+# ─── Debug mode ───────────────────────────────────────────────────────────────
+# Set DEBUG_MODE=1 on the container to enable extra diagnostics:
+#
+#   docker run -e DEBUG_MODE=1 ...
+#   or in docker-compose:
+#     environment:
+#       DEBUG_MODE: "1"
+#
+# Produces:
+#   /acc/game/log/tcpdump_<port>.pcap  — raw packet capture (open in Wireshark)
+#   /acc/game/log/wine_debug.log       — Wine debug output
+#   Stderr: Wine version, WINEDEBUG channel, prefix state
+#
+# You can also override which Wine debug channels are enabled:
+#   WINEDEBUG_CHANNELS="+loaddll,+seh,+relay"  (relay is very verbose)
+# ─────────────────────────────────────────────────────────────────────────────
+if [ "${DEBUG_MODE:-0}" = "1" ]; then
+    echo "[debug] Debug mode enabled for port ${SERVER_PORT}"
+    echo "[debug] Wine: $(wine --version 2>/dev/null || echo unknown)"
+    echo "[debug] WINEPREFIX: ${WINEPREFIX}"
 
-cd /acc/game
-exec wine /acc/game/accServer.exe
+    # Configure Wine debug channels (default: loader + exception + module info)
+    export WINEDEBUG="${WINEDEBUG_CHANNELS:-+loaddll,+module,+seh,+ntdll}"
+    echo "[debug] WINEDEBUG=${WINEDEBUG}"
+
+    # Start packet capture on the server port — captures both TCP and UDP.
+    # The pcap file records every byte Kunos sends/receives so you can inspect
+    # the 2-byte "pakSizeMax" packet and anything that follows.
+    #
+    # NOTE: requires CAP_NET_RAW capability on the container:
+    #   docker-compose: cap_add: [NET_RAW]
+    #   docker run: --cap-add=NET_RAW
+    # Without it tcpdump will be skipped (no crash, just no capture).
+    CAPTURE_FILE="/acc/game/log/tcpdump_${SERVER_PORT}.pcap"
+    echo "[debug] Starting packet capture → ${CAPTURE_FILE}"
+    echo "[debug] (requires cap_add: [NET_RAW] in docker-compose — will exit silently if missing)"
+    tcpdump -i any -nn -s 0 -w "${CAPTURE_FILE}" \
+        "port ${SERVER_PORT}" 2>/acc/game/log/tcpdump.err &
+    TCPDUMP_PID=$!
+
+    # Redirect Wine debug output to a log file (Wine writes to stderr).
+    WINE_LOG="/acc/game/log/wine_debug.log"
+    echo "[debug] Wine debug log → ${WINE_LOG}"
+    echo "Starting ACC server on port ${SERVER_PORT} (DEBUG)..."
+    cd /acc/game
+    exec wine /acc/game/accServer.exe 2>"${WINE_LOG}"
+else
+    # Production: suppress all Wine debug output.
+    export WINEDEBUG=-all
+    echo "Starting ACC server on port ${SERVER_PORT}..."
+    cd /acc/game
+    exec wine /acc/game/accServer.exe
+fi