I've installed Kubernetes on ubuntu 18.04 using this article. Everything is working fine and then I tried to install Kubernetes dashboard with these instructions.
Now when I am trying to run kubectl proxy
then the dashboard is not cumming up and it gives following error message in the browser when trying to access it using default kubernetes-dashboard URL.
{
"kind": "Status",
"apiVersion": "v1",
"metadata": {
},
"status": "Failure",
"message": "no endpoints available for service \"https:kubernetes-dashboard:\"",
"reason": "ServiceUnavailable",
"code": 503
}
Following commands give this output where kubernetes-dashboard shows status as CrashLoopBackOff
$> kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
default amazing-app-rs-59jt9 1/1 Running 5 23d
default amazing-app-rs-k6fg5 1/1 Running 5 23d
default amazing-app-rs-qd767 1/1 Running 5 23d
default amazingapp-one-deployment-57dddd6fb7-xdxlp 1/1 Running 5 23d
default nginx-86c57db685-vwfzf 1/1 Running 4 22d
kube-system coredns-6955765f44-nqphx 0/1 Running 14 25d
kube-system coredns-6955765f44-psdv4 0/1 Running 14 25d
kube-system etcd-master-node 1/1 Running 8 25d
kube-system kube-apiserver-master-node 1/1 Running 42 25d
kube-system kube-controller-manager-master-node 1/1 Running 11 25d
kube-system kube-flannel-ds-amd64-95lvl 1/1 Running 8 25d
kube-system kube-proxy-qcpqm 1/1 Running 8 25d
kube-system kube-scheduler-master-node 1/1 Running 11 25d
kubernetes-dashboard dashboard-metrics-scraper-7b64584c5c-kvz5d 1/1 Running 0 41m
kubernetes-dashboard kubernetes-dashboard-566f567dc7-w2sbk 0/1 CrashLoopBackOff 12 41m
$> kubectl get services --all-namespaces
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
default kubernetes ClusterIP ---------- <none> 443/TCP 25d
default nginx NodePort ---------- <none> 80:32188/TCP 22d
kube-system kube-dns ClusterIP ---------- <none> 53/UDP,53/TCP,9153/TCP 25d
kubernetes-dashboard dashboard-metrics-scraper ClusterIP ---------- <none> 8000/TCP 24d
kubernetes-dashboard kubernetes-dashboard ClusterIP ---------- <none> 443/TCP 24d
$ kubectl get services --all-namespaces
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
default kubernetes ClusterIP ====== <none> 443/TCP 25d
default nginx NodePort ====== <none> 80:32188/TCP 22d
kube-system kube-dns ClusterIP ====== <none> 53/UDP,53/TCP,9153/TCP 25d
kubernetes-dashboard dashboard-metrics-scraper ClusterIP ====== <none> 8000/TCP 24d
kubernetes-dashboard kubernetes-dashboard ClusterIP ====== <none> 443/TCP 24d
$ kubectl get events -n kubernetes-dashboard
LAST SEEN TYPE REASON OBJECT MESSAGE
24m Normal Pulling pod/kubernetes-dashboard-566f567dc7-w2sbk Pulling image "kubernetesui/dashboard:v2.0.0-rc2"
4m46s Warning BackOff pod/kubernetes-dashboard-566f567dc7-w2sbk Back-off restarting failed container
$ kubectl describe services kubernetes-dashboard -n kubernetes-dashboard
Name: kubernetes-dashboard
Namespace: kubernetes-dashboard
Labels: k8s-app=kubernetes-dashboard
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":{"k8s-app":"kubernetes-dashboard"},"name":"kubernetes-dashboard"...
Selector: k8s-app=kubernetes-dashboard
Type: ClusterIP
IP: 10.96.241.62
Port: <unset> 443/TCP
TargetPort: 8443/TCP
Endpoints:
Session Affinity: None
Events: <none>
$ kubectl logs kubernetes-dashboard-566f567dc7-w2sbk -n kubernetes-dashboard
> 2020/01/29 16:00:34 Starting overwatch 2020/01/29 16:00:34 Using
> namespace: kubernetes-dashboard 2020/01/29 16:00:34 Using in-cluster
> config to connect to apiserver 2020/01/29 16:00:34 Using secret token
> for csrf signing 2020/01/29 16:00:34 Initializing csrf token from
> kubernetes-dashboard-csrf secret panic: Get
> https://10.96.0.1:443/api/v1/namespaces/kubernetes-dashboard/secrets/kubernetes-dashboard-csrf:
> dial tcp 10.96.0.1:443: i/o timeout
>
> goroutine 1 [running]:
> github.com/kubernetes/dashboard/src/app/backend/client/csrf.(*csrfTokenManager).init(0xc0003dac80)
> /home/travis/build/kubernetes/dashboard/src/app/backend/client/csrf/manager.go:40
> +0x3b4 github.com/kubernetes/dashboard/src/app/backend/client/csrf.NewCsrfTokenManager(...)
> /home/travis/build/kubernetes/dashboard/src/app/backend/client/csrf/manager.go:65
> github.com/kubernetes/dashboard/src/app/backend/client.(*clientManager).initCSRFKey(0xc000534200)
> /home/travis/build/kubernetes/dashboard/src/app/backend/client/manager.go:494
> +0xc7 github.com/kubernetes/dashboard/src/app/backend/client.(*clientManager).init(0xc000534200)
> /home/travis/build/kubernetes/dashboard/src/app/backend/client/manager.go:462
> +0x47 github.com/kubernetes/dashboard/src/app/backend/client.NewClientManager(...)
> /home/travis/build/kubernetes/dashboard/src/app/backend/client/manager.go:543
> main.main()
> /home/travis/build/kubernetes/dashboard/src/app/backend/dashboard.go:105
> +0x212
Any suggestions to fix this? Thanks in advance.
kubectl logs kubernetes-dashboard-566f567dc7-w2sbk
Error from server (NotFound): pods "kubernetes-dashboard-566f567dc7-w2sbk" not found – Kundankubectl get events
- No resources found in default namespace. – Kundankubectl
commandkubectl logs kubernetes-dashboard-566f567dc7-w2sbk -n kubernetes-dashboard
– BinaryMonster