[FIX] 배포 환경에서 채팅 연결 안됨

nginx/nginx.conf

@@ -4,15 +4,44 @@ events {
 
 http {
     resolver 127.0.0.11 valid=30s;
-
+
+    # WebSocket 연결 타임아웃 설정
+    map $http_upgrade $connection_upgrade {
+        default upgrade;
+        '' close;
+    }
+
     server {
         listen 443 ssl;
         server_name 54.208.50.238;
 
         ssl_certificate /etc/nginx/ssl/server.crt;
         ssl_certificate_key /etc/nginx/ssl/server.key;
         ssl_protocols TLSv1.2 TLSv1.3;
-
+
+        # WebSocket 전용 location
+        location /ws/ {
+            set $upstream_server dondothat-server:8080;
+            proxy_pass http://$upstream_server;
+
+            # WebSocket 필수 헤더들
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection $connection_upgrade;
+
+            # 기본 프록시 헤더들
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+
+            # WebSocket 타임아웃 설정
+            proxy_read_timeout 86400s;
+            proxy_send_timeout 86400s;
+            proxy_connect_timeout 86400s;
+        }
+
+        # 일반 HTTP 요청 처리
         location / {
             set $upstream_server dondothat-server:8080;
             proxy_pass http://$upstream_server;