I am running 3 ubuntu server VMs on my local machine and trying to manage with kubernetes.

The UI does not start by itself when using the start script, so I tried to start up the UI manually using:

kubectl create -f addons/kube-ui/kube-ui-rc.yaml --namespace=kube-system kubectl create -f addons/kube-ui/kube-ui-svc.yaml --namespace=kube-system

The first command succeeds then I get the following for the second command:

error validating "addons/kube-ui/kube-ui-svc.yaml": error validating data: [field nodePort: is required, field port: is required]; if you choose to ignore these errors, turn validation off with --validate=false

So I try editing the default kube-ui-scv file by adding nodePort to the config:

apiVersion: v1
kind: Service
metadata:
  name: kube-ui
  namespace: kube-system
  labels:
    k8s-app: kube-ui
    kubernetes.io/cluster-service: "true"
    kubernetes.io/name: "KubeUI"
spec:
  selector:
    k8s-app: kube-ui
  ports:
  - port: 80
    targetPort: 8080
    nodePort: 30555

But then I get another error after the edit or adding in nodePort:

The Service "kube-ui" is invalid. spec.ports[0].nodePort: invalid value '30555': cannot specify a node port with services of type ClusterIP

I cannot get the ui running at my master nodes IP. kubectl get nodes returns correct information. Thanks.