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/files/rke2-nginx-ingress-config.yaml

@@ -0,0 +1,20 @@
+---
+apiVersion: helm.cattle.io/v1
+kind: HelmChartConfig
+metadata:
+  name: rke2-ingress-nginx
+  namespace: kube-system
+spec:
+  valuesContent: |-
+    controller:
+      hostPort:
+        enabled: false
+      service:
+        enabled: true
+        type: LoadBalancer
+        externalTrafficPolicy: Local
+        loadBalancerClass: purelb.io/purelb
+        allocateLoadBalancerNodePorts: false
+        annotations:
+          purelb.io/service-group: common
+          purelb.io/addresses: "198.18.200.0"