Enable IPv6 for Caddy and don't specify IP address

roles/docker_services/tasks/config.yml

@@ -24,9 +24,7 @@
 - name: Create Docker network for services
   community.docker.docker_network:
     name: services
-    ipam_config:
-      - subnet: 172.16.0.0/16
-        gateway: 172.16.0.1
+    enable_ipv6: true
     state: present
 
 - name: Create Docker network for Tor

roles/docker_services/tasks/services/caddy.yml

@@ -28,7 +28,6 @@
     restart_policy: always
     networks:
       - name: services
-        ipv4_address: 172.16.3.2
     published_ports:
       - 80:80/tcp
       - 443:443/tcp