Kubernetes Cookbook - Second Edition

Upgrading a cluster

For demonstrating how we upgrade the Kubernetes version, we'll first launch the cluster with the 1.8.7 version. For detailed instructions of parameters, refer to the previous recipes in this chapter. Input the following command:

// launch a cluster with additional parameter --kubernetes-version 1.8.7 # kops create cluster --master-count 1 --node-count 2 --zones us-east-1a,us-east-1b,us-east-1c --node-size t2.micro --master-size t2.small --topology private --networking calico --authorization=rbac --cloud-labels "Environment=dev" --state $KOPS_STATE_STORE --kubernetes-version 1.8.7 --name k8s-cookbook.net --yes 

After few minutes, we can see that the master and the nodes are up with version 1.8.7:

# kubectl get nodes NAME ...