feat: configure dual-stack proxy network

nginx/compose.yaml

@@ -15,6 +15,8 @@ services:
       - "[::]:18443:443"
     networks:
       proxy:
+        ipv4_address: 172.30.0.2
+        ipv6_address: fd71:2da4:cf55::2
       host-access:
         ipv4_address: 172.31.255.2
     extra_hosts:
@@ -50,7 +52,19 @@ services:
           memory: 16M
 networks:
   proxy:
-    external: true
+    name: proxy
+    driver: bridge
+    driver_opts:
+      com.docker.network.bridge.name: br-proxy
+    enable_ipv6: true
+    ipam:
+      config:
+        - subnet: 172.30.0.0/24
+          ip_range: 172.30.0.128/25
+          gateway: 172.30.0.1
+        - subnet: fd71:2da4:cf55::/64
+          ip_range: fd71:2da4:cf55:0:8000::/65
+          gateway: fd71:2da4:cf55::1
   host-access:
     name: host-access
     driver: bridge