Add admin user service account and update dashboard access instructions in README

kubernetes/talos/dashboard-adminuser.yaml

@@ -0,0 +1,33 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: admin-user
+  namespace: kubernetes-dashboard
+
+---
+
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: admin-user
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+- kind: ServiceAccount
+  name: admin-user
+  namespace: kubernetes-dashboard
+
+---
+
+apiVersion: v1
+kind: Secret
+metadata:
+  name: admin-user
+  namespace: kubernetes-dashboard
+  annotations:
+    kubernetes.io/service-account.name: "admin-user"   
+type: kubernetes.io/service-account-token
+
+---

kubernetes/talos/readme.md

@@ -126,8 +126,13 @@ NOTE: In case port-forward command does not work, make sure that kong service na
 Dashboard will be available at:
   https://localhost:8443
 
-kubectl  -n kubernetes-dashboard create serviceaccount kubernetes-dashboard
+
-serviceaccount/kubernetes-dashboard created
+# Create a service account for the dashboard
-kubectl -n kubernetes-dashboard create token kubernetes-dashboard
+kubectl apply -f dashboard-adminuser.yaml
+kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath={".data.token"} | base64 -d
+
+# kubectl  -n kubernetes-dashboard create serviceaccount admin-user
+# serviceaccount/kubernetes-dashboard created
+kubectl -n kubernetes-dashboard create token admin-user
 
 ```