Optimize Docker container shutdown speed

- Add signal handling to entrypoint.sh for faster container shutdown
- Use 'nginx -s stop' for immediate termination instead of graceful shutdown
- Trap SIGTERM/SIGINT signals to respond quickly to Docker stop commands

Author: codebude

entrypoint.sh

@@ -3,5 +3,15 @@
 envsubst '${SEARCH_HIGHLIGHT_LIMIT} ${SEARCH_TERM_MIN_LENGTH}' < /usr/share/nginx/html/index.html > /usr/share/nginx/html/index.html.tmp
 mv /usr/share/nginx/html/index.html.tmp /usr/share/nginx/html/index.html
 
+# Function to handle shutdown signals
+shutdown() {
+    echo "Shutting down nginx..."
+    nginx -s stop
+    exit 0
+}
+
+# Trap SIGTERM and SIGINT for graceful shutdown
+trap shutdown SIGTERM SIGINT
+
 # Start nginx
 nginx -g 'daemon off;'