Support for the Kubernetes ServiceNodeExclusion feature gate

Oracle Container Engine for Kubernetes now automatically enables the ServiceNodeExclusion feature gate on the clusters it creates.

With the ServiceNodeExclusion feature gate enabled on a cluster, you can add the node.kubernetes.io/exclude-from-external-load-balancers label to particular worker nodes to exclude them from the list of backend servers in an Oracle Cloud Infrastructure load balancer backend set. The fewer worker nodes included in a backend set, the faster the load balancer can be updated.

For more information see node.kubernetes.io/exclude-from-external-load-balancers.