Dashboard: Error deploying Kubernetes dashboard from the samples

[Fohlen]

Environment

Running

kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/alternative/kubernetes-dashboard.yaml

from the README

Dashboard version: 1.8.3
Kubernetes version: Client 1.9.4 / Server 1.9.0 from Brew distribution
Operating system: OSX
Node.js version: 8.9.1
Go version: (not globally installed)

Steps to reproduce

Installed kubectl and minikube from brew. Tried to deploy the dashboard on minikube via the shortcut from the README

Observed result

serviceaccount "kubernetes-dashboard" unchanged
role "kubernetes-dashboard-minimal" unchanged
rolebinding "kubernetes-dashboard-minimal" unchanged
service "kubernetes-dashboard" configured
The Deployment "kubernetes-dashboard" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string{"k8s-app":"kubernetes-dashboard"}, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable

Expected result

It should start the dashboard

Comments

Checked the document and it says Kubernetes 1.8 is supported. Don't know if that's the case with 1.9x

[Fohlen]

Obviously this error is caused because dashboard is already provisioned in minikube. Didn't know at the time I was writing this ticket.

[angristan]

To access the dashboard with minikube:

minikube dashboard

[bestbelief]

@Fohlen hello,I also met this problem. How did you solve this problem?

dev@ubuntu:/work/dev/project/angular-pen/dashboard$ sudo minikube dashboard
Opening http://127.0.0.1:41419/api/v1/namespaces/kube-system/services/http:kubernetes-dashboard:/proxy/ in your default browser...
[7680:7680:0220/105136.264971:ERROR:zygote_host_impl_linux.cc(89)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
[7690:7690:0220/105136.290613:ERROR:zygote_host_impl_linux.cc(89)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
Running Firefox as root in a regular user's session is not supported. ($HOME is /home/dev which is owned by dev.)
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: iceweasel: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: seamonkey: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: mozilla: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: epiphany: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: konqueror: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: chromium: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: chromium-browser: not found
[7723:7723:0220/105136.475221:ERROR:zygote_host_impl_linux.cc(89)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: www-browser: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: links2: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: elinks: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: links: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: lynx: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: w3m: not found
xdg-open: no method available for opening 'http://127.0.0.1:41419/api/v1/namespaces/kube-system/services/http:kubernetes-dashboard:/proxy/'
failed to open browser: exit status 3

^C
dev@ubuntu:/work/dev/project/angular-pen/dashboard$ sudo kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.1/src/deploy/recommended/kubernetes-dashboard.yaml
secret/kubernetes-dashboard-certs unchanged
serviceaccount/kubernetes-dashboard unchanged
role.rbac.authorization.k8s.io/kubernetes-dashboard-minimal unchanged
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard-minimal unchanged
service/kubernetes-dashboard configured
The Deployment "kubernetes-dashboard" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string{"k8s-app":"kubernetes-dashboard"}, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable
dev@ubuntu:/work/dev/project/angular-pen/dashboard$

[aleon1220]

For me using Linux ubuntu xenial with with virtualBox 6 (painful signing of kernel and virtualization certificates). I took these steps:
Ffollowed every single command given by the edx.org online course
The CLI told me there is a new minikube version so i got the newer version
when did the kubectl apply it got stuck in this step:
secret/kubernetes-dashboard-certs created
i tried to access the dashboard by runnin the kubectl proxy and it told me the service was not available
so i just minikube stop/start
repeated the dashboard steps
minikube dashboard
now it works

reason of the issue: followed linkedIn training plus edx.org training at the same time and got overwhelmed.

What do you think if i create a blog with a simple BPMN diagram describing the steps and commands to run in each step??