Claude Code: Fix container exit issue - log paths and restart loop

app.py

@@ -34,7 +34,7 @@ from error_handlers import (
 # CONFIGURATION & LOGGING
 # ============================================================================
 
-LOG_PATH = "/var/log/cain.log"
+LOG_PATH = "/app/logs/cain.log"  # Writable in Docker container
 FRONTEND_PATH = Path(__file__).parent / "frontend"
 AGENT_DASHBOARD = FRONTEND_PATH / "agent-dashboard.html"
 

entrypoint.sh

@@ -205,6 +205,29 @@ echo "  - Uvicorn: $UVICORN_PID"
 echo "  - A2A Proxy: $A2A_PID"
 echo ""
 
-# Keep container running - wait indefinitely for any background process
-# This prevents the container from exiting when startup completes
-wait
+# Keep container running - monitor background processes and restart if needed
+# This prevents the container from exiting when uvicorn crashes
+while true; do
+    # Check if uvicorn is still running
+    if ! kill -0 $UVICORN_PID 2>/dev/null; then
+        echo "WARNING: Uvicorn died (PID $UVICORN_PID), restarting..."
+        uvicorn app:app --host 0.0.0.0 --port "${PORT:-7860}" > /app/logs/uvicorn.log 2>&1 &
+        UVICORN_PID=$!
+        echo "  Uvicorn restarted with PID: $UVICORN_PID"
+        echo $UVICORN_PID > /tmp/uvicorn.pid
+    fi
+
+    # Check if a2a-proxy is still running (if it was started)
+    if [ -n "$A2A_PID" ] && ! kill -0 $A2A_PID 2>/dev/null; then
+        echo "WARNING: A2A proxy died (PID $A2A_PID), restarting..."
+        if [ -f "/app/scripts/a2a-proxy.cjs" ]; then
+            node /app/scripts/a2a-proxy.cjs > /app/logs/a2a-proxy.log 2>&1 &
+            A2A_PID=$!
+            echo "  A2A proxy restarted with PID: $A2A_PID"
+            echo $A2A_PID > /tmp/a2a-proxy.pid
+        fi
+    fi
+
+    # Sleep before next check
+    sleep 5
+done

error_handlers.py

@@ -15,7 +15,7 @@ from fastapi import HTTPException, Request
 from fastapi.responses import JSONResponse
 
 # Dedicated error logger for exception tracking
-_error_log_path = "/var/log/cain_errors.log"
+_error_log_path = "/app/logs/cain_errors.log"  # Writable in Docker container
 try:
     error_handler = logging.FileHandler(_error_log_path)
     error_handler.setFormatter(logging.Formatter(