no endpoints available for service \"kubernetes-dashboard\" - kubernetes

Question

I'm trying to follow GitHub - kubernetes/dashboard: General-purpose web UI for Kubernetes clusters.
deploy/access:
# export KUBECONFIG=/etc/kubernetes/admin.conf
# kubectl create -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml
secret/kubernetes-dashboard-certs created
serviceaccount/kubernetes-dashboard created
role.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
deployment.apps/kubernetes-dashboard created
service/kubernetes-dashboard created
# kubectl proxy
Starting to serve on 127.0.0.1:8001
curl:
# curl http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/
{
"kind": "Status",
"apiVersion": "v1",
"metadata": {
},
"status": "Failure",
"message": "no endpoints available for service \"kubernetes-dashboard\"",
"reason": "ServiceUnavailable",
"code": 503
}#
Please advise.
per #VKR
$ kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-576cbf47c7-56vg7 0/1 ContainerCreating 0 57m
kube-system coredns-576cbf47c7-sn2fk 0/1 ContainerCreating 0 57m
kube-system etcd-wcmisdlin02.uftwf.local 1/1 Running 0 56m
kube-system kube-apiserver-wcmisdlin02.uftwf.local 1/1 Running 0 56m
kube-system kube-controller-manager-wcmisdlin02.uftwf.local 1/1 Running 0 56m
kube-system kube-proxy-2hhf7 1/1 Running 0 6m57s
kube-system kube-proxy-lzfcx 1/1 Running 0 7m35s
kube-system kube-proxy-rndhm 1/1 Running 0 57m
kube-system kube-scheduler-wcmisdlin02.uftwf.local 1/1 Running 0 56m
kube-system kubernetes-dashboard-77fd78f978-g2hts 0/1 Pending 0 2m38s
$
logs:
$ kubectl logs kubernetes-dashboard-77fd78f978-g2hts -n kube-system
$
describe:
$ kubectl describe pod kubernetes-dashboard-77fd78f978-g2hts -n kube-system
Name: kubernetes-dashboard-77fd78f978-g2hts
Namespace: kube-system
Priority: 0
PriorityClassName: <none>
Node: <none>
Labels: k8s-app=kubernetes-dashboard
pod-template-hash=77fd78f978
Annotations: <none>
Status: Pending
IP:
Controlled By: ReplicaSet/kubernetes-dashboard-77fd78f978
Containers:
kubernetes-dashboard:
Image: k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.0
Port: 8443/TCP
Host Port: 0/TCP
Args:
--auto-generate-certificates
Liveness: http-get https://:8443/ delay=30s timeout=30s period=10s #success=1 #failure=3
Environment: <none>
Mounts:
/certs from kubernetes-dashboard-certs (rw)
/tmp from tmp-volume (rw)
/var/run/secrets/kubernetes.io/serviceaccount from kubernetes-dashboard-token-gp4l7 (ro)
Conditions:
Type Status
PodScheduled False
Volumes:
kubernetes-dashboard-certs:
Type: Secret (a volume populated by a Secret)
SecretName: kubernetes-dashboard-certs
Optional: false
tmp-volume:
Type: EmptyDir (a temporary directory that shares a pod's lifetime)
Medium:
kubernetes-dashboard-token-gp4l7:
Type: Secret (a volume populated by a Secret)
SecretName: kubernetes-dashboard-token-gp4l7
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node-role.kubernetes.io/master:NoSchedule
node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning FailedScheduling 4m39s (x21689 over 20h) default-scheduler 0/3 nodes are available: 3 node(s) had taints that the pod didn't tolerate.
$

Answer 1

It would appear that you are attempting to deploy Kubernetes leveraging kubeadm but have skipped the step of Installing a pod network add-on (CNI). Notice the warning:
The network must be deployed before any applications. Also, CoreDNS will not start up before a network is installed. kubeadm only supports Container Network Interface (CNI) based networks (and does not support kubenet).
Once you do this, the CoreDNS pods should come up healthy. This can be verified with:
kubectl -n kube-system -l=k8s-app=kube-dns get pods
Then the kubernetes-dashboard pod should come up healthy as well.

Answer 2

you could refer to https://github.com/kubernetes/dashboard#getting-started
Also, I see "https" in your link
Please try this link instead
http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/

Answer 3

I had the same problem. In the end it turned out as a Calico Network configuration problem. But step by step...
First I checked if the Dashboard Pod was running:
kubectl get pods --all-namespaces
The result for me was:
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-kube-controllers-bcc6f659f-j57l9 1/1 Running 2 19h
kube-system calico-node-hdxp6 0/1 CrashLoopBackOff 13 15h
kube-system calico-node-z6l56 0/1 Running 68 19h
kube-system coredns-74ff55c5b-8l6m6 1/1 Running 2 19h
kube-system coredns-74ff55c5b-v7pkc 1/1 Running 2 19h
kube-system etcd-got-virtualbox 1/1 Running 3 19h
kube-system kube-apiserver-got-virtualbox 1/1 Running 3 19h
kube-system kube-controller-manager-got-virtualbox 1/1 Running 3 19h
kube-system kube-proxy-q99s5 1/1 Running 2 19h
kube-system kube-proxy-vrpcd 1/1 Running 1 15h
kube-system kube-scheduler-got-virtualbox 1/1 Running 2 19h
kubernetes-dashboard dashboard-metrics-scraper-7b59f7d4df-qc9ms 1/1 Running 0 28m
kubernetes-dashboard kubernetes-dashboard-74d688b6bc-zrdk4 0/1 CrashLoopBackOff 9 28m
The last line indicates, that the dashboard pod could not have been started (status=CrashLoopBackOff).
And the 2nd line shows that the calico node has problems. Most likely the root cause is Calico.
Next step is to have a look at the pod log (change namespace / name as listed in YOUR pods list):
kubectl logs kubernetes-dashboard-74d688b6bc-zrdk4 -n kubernetes-dashboard
The result for me was:
2021/03/05 13:01:12 Starting overwatch
2021/03/05 13:01:12 Using namespace: kubernetes-dashboard
2021/03/05 13:01:12 Using in-cluster config to connect to apiserver
2021/03/05 13:01:12 Using secret token for csrf signing
2021/03/05 13:01:12 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
Hm - not really helpful. After searching for "dial tcp 10.96.0.1:443: i/o timeout" I found this information, where it says ...
If you follow the kubeadm instructions to the letter ... Which means install docker, kubernetes (kubeadm, kubectl, & kubelet), and calico with the Kubeadm hosted instructions ... and your computer nodes have a physical ip address in the range of 192.168.X.X then you will end up with the above mentioned non-working dashboard. This is because the node ip addresses clash with the internal calico ip addresses.
https://github.com/kubernetes/dashboard/issues/1578#issuecomment-329904648
Yes, in deed I do have a physical IP in the range of 192.168.x.x - like many others might have as well. I wish Calico would check this during setup.
So let's move the pod network to a different IP range:
You should use a classless reserved IP range for Private Networks like
10.0.0.0/8 (16.777.216 addresses)
172.16.0.0/12 (1.048.576 addresses)
192.168.0.0/16 (65.536 addresses). Otherwise Calico will terminate with an error saying "Invalid CIDR specified in CALICO_IPV4POOL_CIDR" ...
sudo kubeadm reset
sudo rm /etc/cni/net.d/10-calico.conflist
sudo rm /etc/cni/net.d/calico-kubeconfig
export CALICO_IPV4POOL_CIDR=172.16.0.0
export MASTER_IP=192.168.100.122
sudo kubeadm init --pod-network-cidr=$CALICO_IPV4POOL_CIDR/12 --apiserver-advertise-address=$MASTER_IP --apiserver-cert-extra-sans=$MASTER_IP
mkdir -p $HOME/.kube
sudo rm -f $HOME/.kube/config
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
sudo chown $(id -u):$(id -g) /etc/kubernetes/kubelet.conf
wget https://docs.projectcalico.org/v3.8/manifests/calico.yaml -O calico.yaml
sudo sed -i "s/192.168.0.0\/16/$CALICO_IPV4POOL_CIDR\/12/g" calico.yaml
sudo sed -i "s/192.168.0.0/$CALICO_IPV4POOL_CIDR/g" calico.yaml
kubectl apply -f calico.yaml
Now we test if all calico pods are running:
kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-kube-controllers-bcc6f659f-ns7kz 1/1 Running 0 15m
kube-system calico-node-htvdv 1/1 Running 6 15m
kube-system coredns-74ff55c5b-lqwpd 1/1 Running 0 17m
kube-system coredns-74ff55c5b-qzc87 1/1 Running 0 17m
kube-system etcd-got-virtualbox 1/1 Running 0 17m
kube-system kube-apiserver-got-virtualbox 1/1 Running 0 17m
kube-system kube-controller-manager-got-virtualbox 1/1 Running 0 18m
kube-system kube-proxy-6xr5j 1/1 Running 0 17m
kube-system kube-scheduler-got-virtualbox 1/1 Running 0 17m
Looks good. If not check CALICO_IPV4POOL_CIDR by editing the node config: KUBE_EDITOR="nano" kubectl edit -n kube-system ds calico-node
Let's apply the kubernetes-dashboard and start the proxy:
export KUBECONFIG=$HOME/.kube/config
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0/aio/deploy/recommended.yaml
kubectl proxy
Now I can load http://127.0.0.1:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/

Answer 4

if you are using helm,
check if kubectl proxy is running
then goto
http://localhost:8001/api/v1/namespaces/default/services/https:kubernetes-dashboard:https/proxy
two tips in above link:
use helm to install, the namespaces will be /default (not /kubernetes-dashboard
need add https after /https:kubernetes-dashboard:
better way is
helm delete kubernetes-dashboard
kubectl create namespace kubernetes-dashboard
helm install -n kubernetes-dashboard kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard
then goto
http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:https/proxy
then you can easily follow creating-sample-user to get token to login

Answer 5

i was facing the same issue, so i followed the official docs and then went to https://github.com/kubernetes/dashboard url, there is another way using helm on this link https://artifacthub.io/packages/helm/k8s-dashboard/kubernetes-dashboard
after installing helm and run this 2 commands
helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard/
helm install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard
it worked but on default namespace on this link
http://localhost:8001/api/v1/namespaces/default/services/https:kubernetes-dashboard:https/proxy/#/workloads?namespace=default