3.5 Upgrading

Oracle Linux Container Services for use with Kubernetes 1.1.12 is the first release to support high availability clusters.

Important

Oracle does not support upgrading existing single master node clusters built with the kubeadm-setup.sh script to high availability clusters. You must build and manage high availability clusters using the kubeadm-ha-setup utility.

Similarly, upgrading master nodes in a high availability cluster with the kubeadm-setup.sh script is not supported. All maintenance and management operations within high availability clusters must be performed with the kubeadm-ha-setup utility.