v0.13.0 is all about cgroups -- We're making the switch to the systemd cgroup driver to align with current Kubernetes container runtime recommendations and kubeadm defaults.

Breaking Changes

• systemd cgroups driver will be used for Kubernetes v1.24.0+ (rather than 1.21.0+ when kubeadm changed the default, which we previously overrode).
• NOTE: You must use kind v0.13.0+ with Kubernetes v1.24.0+ images, and if you built your own Kubernetes v1.24.0+ image
  with a previous kind version you will need to re-built when switching to kind v0.13.0+.
• NOTE: You do not need to be using systemd on the host machine, systemd is used inside the kind node containers. We are now using it for Kubernetes pods in addition to running kubelet, containerd etc.
• KIND will continue to use cgroupfs for Kubernetes versions prior to v1.24.0.
• The default node image is a Kubernetes v1.24.0 image: kindest/node:v1.24.0@sha256:406fd86d48eaf4c04c7280cd1d2ca1d61e7d0d61ddef0125cb097bc7b82ed6a1

New Features

• Limited support for PPC64LE architecture (you will need to build your own node images)
• kind export logs now dumps a list of images on each node
• Base image updates
• Containerd version 1.6.4
• CNI plugins 1.1.1
• kind binary built with Go 1.18
• General Go dependency updates
• registry.k8s.io is used as the primary mirror for k8s.gcr.io in kind nodes / image building
• If registry.k8s.io is not reachable, the node runtime is configured to fallback to k8s.gcr.io directly as the next endpoint

New Node images have been built for kind v0.13.0, please use these exact images (IE like kindest/node:v1.24.0@sha256:406fd86d48eaf4c04c7280cd1d2ca1d61e7d0d61ddef0125cb097bc7b82ed6a1 including the digest) or build your own as we may need to change the image format again in the future :sweat_smile:

Images built for this release:
- 1.24: kindest/node:v1.24.0@sha256:406fd86d48eaf4c04c7280cd1d2ca1d61e7d0d61ddef0125cb097bc7b82ed6a1
- 1.23: kindest/node:v1.23.6@sha256:1af0f1bee4c3c0fe9b07de5e5d3fafeb2eec7b4e1b268ae89fcab96ec67e8355
- 1.22: kindest/node:v1.22.9@sha256:6e57a6b0c493c7d7183a1151acff0bfa44bf37eb668826bf00da5637c55b6d5e
- 1.21: kindest/node:v1.21.12@sha256:ae05d44cc636ee961068399ea5123ae421790f472c309900c151a44ee35c3e3e
- 1.20: kindest/node:v1.20.15@sha256:a6ce604504db064c5e25921c6c0fffea64507109a1f2a512b1b562ac37d652f3
- 1.19: kindest/node:v1.19.16@sha256:dec41184d10deca01a08ea548197b77dc99eeacb56ff3e371af3193c86ca99f4
- 1.18: kindest/node:v1.18.20@sha256:38a8726ece5d7867fb0ede63d718d27ce2d41af519ce68be5ae7fcca563537ed

NOTE: these node images support amd64 and arm64. It remains possible to build custom images for other architectures (see the docs).

Fixes

• In cgroup v1, unmount cgroups that are not supported by the runtime used to create nodes
• Pinned metallb to a stable version in documentation

Contributors

Thank you to everyone who contributed to this release! ❤️

Users whose commits are in this release (alphabetically by user name)

Contributors since v0.12.0:

• @aojea
• @BenTheElder
• @chendave
• @dims
• @iamtodor
• @jpmcb
• @k8s-ci-robot
• @kolyshkin
• @mkumatag
• @pacoxu
• @stmcginnis
• @yxxhero
• @zaunist