[Rancher] Operational Advisory, 20220113: Related to removal of dockershim in Kubernetes v1.24

This document (000020538) is provided subject to the disclaimer at the end of this document.



This is a follow-up to the Rancher Operational Advisory that was sent on this topic in December 2020.

In the latest announcement from the Kubernetes blog, it has been notified that dockershim removal has been planned in Kubernetes v1.24, slated for release around April 2022.

What are SUSE's plans to ensure on-going container runtime support in future Kubernetes releases?

Starting with Kubernetes v1.21, RKE added support for CRI plugin cri-dockerd, see here instructions to enable. All RKE clusters will need to leverage this CRI plugin before upgrading to Kubernetes v1.24. Future updates beyond Kubernetes v1.24 RKE will rely on the cri-dockerd shim.

For more information on the dockershim removal schedule, you can check the upstream Kubernetes Enhancement Proposal (KEP) 2221.

K3s and RKE2 are not impacted by the removal of dockershim and use the CRI plugin containerd. We expect to deliver a migration path from RKE to RKE2 in the future.

SUSE will continue to keep you updated with related news on the roadmap from our product management

Additional Information


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  • Document ID:000020538
  • Creation Date: 05-May-2022
  • Modified Date:05-May-2022
    • SUSE Rancher
    • SUSE Rancher Longhorn

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