feat: IPv6 support 🚀 (#855)

Co-authored-by: Devin Buhl <onedr0p@users.noreply.github.com>

bootstrap/vars/config.sample.yaml

@@ -42,10 +42,17 @@ bootstrap_kube_vip_addr:
 bootstrap_k8s_gateway_addr:
 # The Load balancer IP for ingress-nginx, choose an available IP in your nodes network that is not being used
 bootstrap_ingress_nginx_addr:
-# Choose your cluster and service cidrs, leave these unchanged unless you know what you are doing
+
+# Keep the next three options default unless you know what you are doing
+# (Advanced) Enable ipv6
+bootstrap_ipv6_enabled: false
+# (Advanced) For ipv6 use format 10.42.0.0/16,fd78:c889:47fb:10::/60
+# /60 IPv6 block is enough for 16 nodes
 bootstrap_cluster_cidr: 10.42.0.0/16
+# (Advanced) For ipv6 use format 10.43.0.0/16,fd78:c889:47fb:e0::/112
 bootstrap_service_cidr: 10.43.0.0/16
 
+
 # Node information
 bootstrap_nodes:
   # Use only 1, 3 or more odd master nodes, recommended is 3