created proxy network

docker-compose.yml

@@ -23,6 +23,8 @@ services:
     depends_on:
       sqlserver:
         condition: service_healthy
+    networks:
+      - proxy
 
   sqlserver:
     image: mcr.microsoft.com/mssql/server:latest
@@ -44,3 +46,7 @@ services:
 
 volumes:
   sqlserver_data:
+
+networks:
+  proxy:
+    external: true