allow to deploy a dnsConfig resource

This allows to deploy a dnsConfig resource via the helm chart.

cmd/k8s-operator/deploy/chart/templates/dns-config.yaml

@@ -0,0 +1,13 @@
+{{ if .Values.dnsConfig.enabled }}
+apiVersion: tailscale.com/v1alpha1
+kind: DNSConfig
+metadata:
+  name: dnsconfig
+  namespace: {{ .Release.Namespace }}
+spec:
+  domain: {{ .Values.dnsConfig.domain | quote }}
+  nameserver:
+    image:
+      repo: {{ .Values.dnsConfig.image.repo | quote }}
+      tag: {{ .Values.dnsConfig.image.tag | default .Chart.AppVersion }}
+{{ end }}

cmd/k8s-operator/deploy/chart/values.yaml

@@ -90,3 +90,15 @@ apiServerProxyConfig:
   mode: "false" # "true", "false", "noauth"
 
 imagePullSecrets: []
+
+# dnsConfig allows to deploy the k8s-nameserver which allows to use magicDNS
+# names.
+dnsConfig:
+  enabled: false
+  image:
+    repo: "tailscale/k8s-nameserver"
+    ## tag can be used to overwrite the tag of the container image to be used.
+    ## By default the appVersion will be used. 
+    tag: ""
+  ## domain allows to customize the magicDNS domain.
+  domain: "ts.net"