Added example nginx proxy working

compose/proxy/nginx.conf

@@ -2,9 +2,9 @@ events {}
 http{
 
     upstream backend{
-        server web:80;
-        server web_2:80;
-        server web_3:80;
+        server proxy-web-1:80;
+        server proxy-web-2:80;
+        server proxy-web-3:80;
     }
 
     server{
@@ -13,4 +13,4 @@ http{
             proxy_pass http://backend;
         }
     }
-}
+}

compose/proxy/proxy.yml

@@ -1,9 +1,7 @@
 services:
   web: 
     image: nginx:alpine
-    volumes:
-      - ./web:/usr/share/nginx/html:ro
-  
+
   proxy:
     image: nginx:alpine
     ports:
@@ -11,4 +9,4 @@ services:
     volumes:
       - ./nginx.conf:/etc/nginx/nginx.conf:ro
     depends_on:
-      - web
+      - web