Is it possible to change the CNI for a rke/rke2/k3s cluster or Rancher launched cluster post-provisioning?

This document (000020904) is provided subject to the disclaimer at the end of this document.

Environment

RKE1/RKE2/K3s Clusters
Any cluster provisioned by Rancher

Situation

The CNI for a cluster can be specified in the cluster configuration when launching a Kubernetes cluster via both the CLI and Rancher v2.x. Is it possible to change the CNI after the cluster has been provisioned?

Resolution

Changing the cluster CNI after the cluster has been provisioned is not supported and care should be taken to set these as required when first configuring the cluster.

Status

Top Issue

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.