use public network instead of port forwarding

docker-compose.yml

@@ -26,14 +26,19 @@ services:
       ICEBOX_DB_NAME: icebox
   nginx:
     build: nginx
-    ports:
-    - "80:80"
-    - "8081:8081"
-    - "8085:8085"
+    # In production an external IP is assigned to this container
+    #ports:
+    #- "80:80"
+    #- "8081:8081"
+    #- "8085:8085"
     depends_on:
     - web
     - alias
     - backend
+    networks:
+      default:
+      public:
+       ipv4_address: 172.23.208.37
   database:
     image: postgres
     environment:
@@ -42,3 +47,12 @@ services:
      POSTGRES_DB: icebox
     volumes:
     - ../icebox-data:/var/lib/postgresql/data
+
+networks:
+  public:
+    driver: macvlan
+    driver_opts:
+      parent: ens18
+    ipam:
+      config:
+        - subnet: 172.23.208.0/23[201~