first commit

docker_svc/real-time-chat-app/app/nginx.conf

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+server {
+    listen 80;
+    
+    # Compression
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
+    
+    # Root directory and index file
+    root /usr/share/nginx/html;
+    index index.html index.htm;
+    
+    # Handle React Router
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+    
+    # Cache static assets
+    location ~* \.(jpg|jpeg|png|gif|ico|css|js|svg)$ {
+        expires 30d;
+        add_header Cache-Control "public, no-transform";
+    }
+    
+    # Error pages
+    error_page 500 502 503 504 /50x.html;
+    location = /50x.html {
+        root /usr/share/nginx/html;
+    }
+}