I have a Kubernetes cluster in vagrant (1.14.0) and installed calico.
I have installed the kubernetes dashboard. When I use kubectl proxy
to visit the dashboard:
Error: 'dial tcp 192.168.1.4:8443: connect: connection refused'
Trying to reach: 'https://192.168.1.4:8443/'
Here are my pods (dashboard is restarting frequently):
$ kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
calico-etcd-cj928 1/1 Running 0 11m
calico-node-4fnb6 1/1 Running 0 18m
calico-node-qjv7t 1/1 Running 0 20m
calico-policy-controller-b9b6749c6-29c44 1/1 Running 1 11m
coredns-fb8b8dccf-jjbhk 1/1 Running 0 20m
coredns-fb8b8dccf-jrc2l 1/1 Running 0 20m
etcd-k8s-master 1/1 Running 0 19m
kube-apiserver-k8s-master 1/1 Running 0 19m
kube-controller-manager-k8s-master 1/1 Running 0 19m
kube-proxy-8mrrr 1/1 Running 0 18m
kube-proxy-cdsr9 1/1 Running 0 20m
kube-scheduler-k8s-master 1/1 Running 0 19m
kubernetes-dashboard-5f7b999d65-nnztw 1/1 Running 3 2m11s
logs of the dasbhoard pod:
2019/03/30 14:36:21 Error while initializing connection to Kubernetes apiserver. This most likely means that the cluster is misconfigured (e.g., it has invalid apiserver certificates or service account's configuration) or the --apiserver-host param points to a server that does not exist. Reason: Get https://10.96.0.1:443/version: dial tcp 10.96.0.1:443: i/o timeout
Refer to our FAQ and wiki pages for more information: https://github.com/kubernetes/dashboard/wiki/FAQ
I can telnet from both master and nodes to 10.96.0.1:443.
What is configured wrongly? The rest of the cluster seems to work fine, although I see this logs in kubelet:
failed to load Kubelet config file /var/lib/kubelet/config.yaml, error failed to read kubelet config file "/var/lib/kubelet/config.yaml"
kubelet seems to run fine on the master. The cluster was created with this command:
kubeadm init --apiserver-advertise-address="192.168.50.10" --apiserver-cert-extra-sans="192.168.50.10" --node-name k8s-master --pod-network-cidr=192.168.0.0/16
you should define your hostname in /etc/hosts
#hostname
YOUR_HOSTNAME
#nano /etc/hosts
YOUR_IP HOSTNAME
if you set your hostname in your master but it did not work try
# systemctl stop kubelet
# systemctl stop docker
# iptables --flush
# iptables -tnat --flush
# systemctl start kubelet
# systemctl start docker
and you should install dashboard before join worker node
and disable your firewall
and you can check your free ram.