Refactor nginx configuration for improved upstream handling and clarity

Author: CodeByAmrit

config.nginx

@@ -1,27 +1,32 @@
-# Docker DNS (MANDATORY)
+# Docker embedded DNS
 resolver 127.0.0.11 ipv6=off valid=30s;
+resolver_timeout 5s;
+
+# ===============================
+# Upstream (DYNAMIC DNS SAFE)
+# ===============================
+upstream streamvision_upstream {
+    server streamvision:3000 resolve;
+    keepalive 32;
+}
 
 server {
     listen 80;
     server_name _;
 
-    # --- General settings ---
     client_max_body_size 50M;
+    proxy_http_version 1.1;
+
     sendfile on;
     tcp_nopush on;
     tcp_nodelay on;
     keepalive_timeout 65;
 
-    # --- WebSocket requires HTTP/1.1 ---
-    proxy_http_version 1.1;
-
     # ===============================
     # API & Frontend
     # ===============================
     location / {
-        # Dynamic DNS resolution (CRITICAL)
-        set $upstream streamvision:3000;
-        proxy_pass http://$upstream;
+        proxy_pass http://streamvision_upstream;
 
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
@@ -36,9 +41,7 @@ server {
     # WebSocket Streaming
     # ===============================
     location /ws {
-        # Dynamic DNS resolution (CRITICAL)
-        set $upstream streamvision:3000;
-        proxy_pass http://$upstream;
+        proxy_pass http://streamvision_upstream;
 
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "upgrade";