feat: moderate the k8s install (#403)

- only install a base config
- wait for 3 masters before deploying helm charts
- remove cluster-domain
- manage nginx ingres via rke2 helmconfig

Reviewed-on: #403

modules/rke2/manifests/helm.pp

@@ -20,8 +20,8 @@ class rke2::helm (
       mode   => '0755',
     }
 
-    # on the controller nodes only
-    if $node_type == 'server' {
+    # on the controller nodes only, and after 3 master nodes exist
+    if $node_type == 'server' and $facts['k8s_masters'] and $facts['k8s_masters'] > 2 {
 
       # check if the repo already exists
       $helm_repos.each | String $repo, Stdlib::HTTPSUrl $url | {