Not able to see Kubernetes UI Dashboard - azure

Question

I have set up a cluster where there are 2 nodes. One is Master and Other is a node, both on different Azure ubuntu VMs. For networking, I used Canal tool.
$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
ubuntu-aniket1 Ready master 57m v1.10.0
ubutu-aniket Ready <none> 56m v1.10.0
$ kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system canal-jztfd 3/3 Running 0 57m
kube-system canal-mdbbp 3/3 Running 0 57m
kube-system etcd-ubuntu-aniket1 1/1 Running 0 58m
kube-system kube-apiserver-ubuntu-aniket1 1/1 Running 0 58m
kube-system kube-controller-manager-ubuntu-aniket1 1/1 Running 0 58m
kube-system kube-dns-86f4d74b45-8zqqr 3/3 Running 0 58m
kube-system kube-proxy-k5ggz 1/1 Running 0 58m
kube-system kube-proxy-vx9sq 1/1 Running 0 57m
kube-system kube-scheduler-ubuntu-aniket1 1/1 Running 0 58m
kube-system kubernetes-dashboard-54865c6fb9-kg5zt 1/1 Running 0 26m
When I tried to create kubernetes Dashboard with
$ kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml
and set proxy as
sh
$ kubectl proxy --address 0.0.0.0 --accept-hosts '.*'
Starting to serve on [::]:8001
When I hit url http://<master IP>:8001 in browser, it shows following output
{
"paths": [
"/api",
"/api/v1",
"/apis",
"/apis/",
"/apis/admissionregistration.k8s.io",
"/apis/admissionregistration.k8s.io/v1beta1",
"/apis/apiextensions.k8s.io",
"/apis/apiextensions.k8s.io/v1beta1",
"/apis/apiregistration.k8s.io",
"/apis/apiregistration.k8s.io/v1",
"/apis/apiregistration.k8s.io/v1beta1",
"/apis/apps",
"/apis/apps/v1",
"/apis/apps/v1beta1",
"/apis/apps/v1beta2",
"/apis/authentication.k8s.io",
"/apis/authentication.k8s.io/v1",
"/apis/authentication.k8s.io/v1beta1",
"/apis/authorization.k8s.io",
"/apis/authorization.k8s.io/v1",
"/apis/authorization.k8s.io/v1beta1",
"/apis/autoscaling",
"/apis/autoscaling/v1",
"/apis/autoscaling/v2beta1",
"/apis/batch",
"/apis/batch/v1",
"/apis/batch/v1beta1",
"/apis/certificates.k8s.io",
"/apis/certificates.k8s.io/v1beta1",
"/apis/crd.projectcalico.org",
"/apis/crd.projectcalico.org/v1",
"/apis/events.k8s.io",
"/apis/events.k8s.io/v1beta1",
"/apis/extensions",
"/apis/extensions/v1beta1",
"/apis/networking.k8s.io",
"/apis/networking.k8s.io/v1",
"/apis/policy",
"/apis/policy/v1beta1",
"/apis/rbac.authorization.k8s.io",
"/apis/rbac.authorization.k8s.io/v1",
"/apis/rbac.authorization.k8s.io/v1beta1",
"/apis/storage.k8s.io",
"/apis/storage.k8s.io/v1",
"/apis/storage.k8s.io/v1beta1",
"/healthz",
"/healthz/autoregister-completion",
"/healthz/etcd",
"/healthz/ping",
"/healthz/poststarthook/apiservice-openapi-controller",
"/healthz/poststarthook/apiservice-registration-controller",
"/healthz/poststarthook/apiservice-status-available-controller",
"/healthz/poststarthook/bootstrap-controller",
"/healthz/poststarthook/ca-registration",
"/healthz/poststarthook/generic-apiserver-start-informers",
"/healthz/poststarthook/kube-apiserver-autoregistration",
"/healthz/poststarthook/rbac/bootstrap-roles",
"/healthz/poststarthook/start-apiextensions-controllers",
"/healthz/poststarthook/start-apiextensions-informers",
"/healthz/poststarthook/start-kube-aggregator-informers",
"/healthz/poststarthook/start-kube-apiserver-informers",
"/logs",
"/metrics",
"/openapi/v2",
"/swagger-2.0.0.json",
"/swagger-2.0.0.pb-v1",
"/swagger-2.0.0.pb-v1.gz",
"/swagger.json",
"/swaggerapi",
"/version"
]
}
But when I tries to hit http://<master IP>:8001/ui I am not able to see Kubernetes dashboard. Instead I see following output
{
"paths": [
"/apis",
"/apis/",
"/apis/apiextensions.k8s.io",
"/apis/apiextensions.k8s.io/v1beta1",
"/healthz",
"/healthz/etcd",
"/healthz/ping",
"/healthz/poststarthook/generic-apiserver-start-informers",
"/healthz/poststarthook/start-apiextensions-controllers",
"/healthz/poststarthook/start-apiextensions-informers",
"/metrics",
"/openapi/v2",
"/swagger-2.0.0.json",
"/swagger-2.0.0.pb-v1",
"/swagger-2.0.0.pb-v1.gz",
"/swagger.json",
"/swaggerapi",
"/version"
]
}
Could you please help me resolving dashboard issue?
Thanks in advance

Answer 1

Try go to:
http://<master IP>:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/
As mentioned here: https://github.com/kubernetes/dashboard

Answer 2

As mention in kubernetes/dashboard issue 1803:
changes in kubernetes 1.6 users that want to enable RBACs should configure them first to allow dashboard access to api server.
Make sure you have define a service account as in here, to be able to access the dashboard.
See "Service Account Permissions":
Default RBAC policies grant scoped permissions to control-plane components, nodes, and controllers, but grant no permissions to service accounts outside the “kube-system” namespace (beyond discovery permissions given to all authenticated users).
This allows you to grant particular roles to particular service accounts as needed.
Fine-grained role bindings provide greater security, but require more effort to administrate.
Broader grants can give unnecessary (and potentially escalating) API access to service accounts, but are easier to administrate.

Answer 3

I faced same issue when i was creating my self-hosted kubernetes cluster on aws ec2 machines. I troubleshooted in following way and fixed
$ ssh -i ~/.ssh/id_rsa admin#api.example.com (Enter in Master machines from kops installed machine)
$ kubectl proxy --address=0.0.0.0 --port-8001 &
$ ssh -i pemfile username#Ip-address (in machine where you installed kops )
$ cat ~/.kube/config (to get user name and password )
$ kubectl -n kube-system describe secret admin-user-token-id
To get DashBoard
http://MasterIP_address:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/