Disable IPv6

roles/docker/defaults/main.yml

@@ -3,8 +3,7 @@
 volume_root_folder: "/docker-volumes"
 volume_website_folder: "{{ volume_root_folder }}/websites"
 
-external_services_network_ipv4_subnet: '172.28.0.0/16'
-external_services_network_ipv6_subnet: 'fd02::/64'
+external_services_network_subnet: '172.28.0.0/16'
 
 services:
   ### Internal services ###

roles/docker/tasks/services.yml

@@ -4,8 +4,7 @@
   docker_network:
     name: external_services
     ipam_config:
-      - subnet: "{{ external_services_network_ipv4_subnet }}"
-      - subnet: "{{ external_services_network_ipv6_subnet }}"
+      - subnet: "{{ external_services_network_subnet }}"
 
 - name: Deploy all services
   include_tasks:

roles/docker/templates/fedi_dk_nodebb/nginx/http.conf.j2

@@ -1,6 +1,6 @@
 resolver 127.0.0.11 valid=30s ipv6=off;
 
-set_real_ip_from  {{ external_services_network_ipv4_subnet }};
+set_real_ip_from  {{ external_services_network_subnet }};
 real_ip_header    X-Forwarded-For;
 real_ip_recursive on;