depot/third_party/nixpkgs/pkgs/applications/networking/cluster/rke2

RKE2 Version

RKE2, Kubernetes, and other clustered software has the property of not being able to update atomically. Most software in nixpkgs, like for example bash, can be updated as part of a nixos-rebuild switch without having to worry about the old and the new bash interacting in some way.

Note

Upgrade the server nodes first, one at a time. Once all servers have been upgraded, you may then upgrade agent nodes.

Release Channels

RKE2 has there own release channels, which are: stable, latest and testing.

The stable channel is the default channel and is recommended for production use. The latest channel is the latest stable release. The testing channel is the latest release, including pre-releases.

Channel	Description
stable	(Default) Stable is recommended for production environments. These releases have been through a period of community hardening, and are compatible with the most recent release of Rancher.
latest	Latest is recommended for trying out the latest features. These releases have not yet been through a period of community hardening, and may not be compatible with Rancher.
testing	The most recent release, including pre-releases.

Learn more about the RKE2 release channels.

For an exhaustive and up-to-date list of channels, you can visit the rke2 channel service API. For more technical details on how channels work, you can see the channelserver project.

Tip

When attempting to upgrade to a new version of RKE2, the Kubernetes version skew policy applies. Ensure that your plan does not skip intermediate minor versions when upgrading. Nothing in the upgrade process will protect against unsupported changes to the Kubernetes version.