I ran command systemctl stop kubelet then try to start it systemctl start kubelet
but can't able to start it
here is the output of systemctl status kubelet
kubelet.service - kubelet: The Kubernetes Node Agent
Loaded: loaded (/lib/systemd/system/kubelet.service; enabled; vendor preset: enabled)
Drop-In: /etc/systemd/system/kubelet.service.d
└─10-kubeadm.conf
Active: activating (auto-restart) (Result: exit-code) since Wed 2019-06-05 15:35:34 UTC; 7s ago
Docs: https://kubernetes.io/docs/home/
Process: 31697 ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=255)
Main PID: 31697 (code=exited, status=255)Because of this i can't able to run any kubectl command
example kubectl get pods gives
The connection to the server 172.31.6.149:6443 was refused - did you specify the right host or port?Need to disable swap using swapoff -a then, try to start it systemctl start kubelet
So i need to reset kubelete service Here are the step :-
1) check status of your docker service. If stoped,start it by cmd sudo systemctl start docekr. If not installed installed it #yum install -y kubelet kubeadm kubectl docker
2) Make swap off by #swapoff -a
3)Now reset kubeadm by #kubeadm reset
4) Now try #kudeadm init after that check #systemctl status kubelet it will be working
Check nodes kubectl get nodes if Master Node is not ready ,refer following To start using your cluster, you need to run the following as a regular user:
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/configif you not able to create pod ..check dns kubectl get pods --namespace=kube-system if dns pods are in pending state i.e you need to use network service i used calico
kubectl apply -f https://docs.projectcalico.org/v3.7/manifests/calico.yamlNow your master node is ready .. now you can deploy pod