Configure the Kubernetes services on Node
Perform the following steps to configure the kubelet on the node:
Edit /etc/kubernetes/kubelet to appear like this:
### # Kubernetes kubelet (node) config # The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces) KUBELET_ADDRESS="--address=0.0.0.0" # You may leave this blank to use the actual hostname KUBELET_HOSTNAME="--hostname_override=photon-node" # location of the api-server KUBELET_API_SERVER="--kubeconfig=/etc/kubernetes/kubeconfig" # Add your own #KUBELET_ARGS=""
Make sure that the api-server end-point located in /etc/kubernetes/kubeconfig, targets the api-server in the master node and does not fall into the loopback interface:
apiVersion: v1 clusters: - cluster: server: <ip_master_node>:8080
Start the appropriate services on the node (photon-node):
for SERVICES in kube-proxy kubelet docker; do systemctl restart $SERVICES systemctl enable $SERVICES systemctl status $SERVICES done
Check to make sure that the cluster can now see the photon-node on photon-master and that its status changes to Ready.
kubectl get nodes NAME LABELS STATUS photon-node name=photon-node-label Ready
If the node status is
NotReady, verify that the firewall rules are permissive for Kubernetes.
- Deletion of nodes: To delete photon-node from your Kubernetes cluster, one should run the following on photon-master (please do not do it, it is just for information):
kubectl delete -f ./node.json
You should have a functional cluster. You can now launch a test pod. For an introduction to working with Kubernetes, see Kubernetes documentation.