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battery-operator v0.3.0: Kubernetes v1.36, containerd v2 and flintlock v0.16 on the Host Image

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@phoban01 phoban01 released this 05 Oct 13:47
· 13 commits to main since this release
v0.3.0
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phoban01 Piaras Hoban
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The Host Image moves to Kubernetes v1.36 and containerd v2, with flintlock v0.16.0.

Component v0.2.x v0.3.0
Kubernetes (kubelet, kubeadm) v1.35.8 v1.36.3
containerd v1.7.22 v2.2.9
flintlock v0.15.2 v0.16.0
Firecracker v1.10.1 v1.16.1
Cloud Hypervisor v41.0 v48.0
  • containerd's configuration is now in v2's format (version = 3). The thin pool snapshotter for flintlock is unchanged.
  • flintlockd and the kubelet's image pulls read registry configuration from /etc/containerd/certs.d (HI-081). The image ships none, so pulls work as before. hostimage/README.md says how to add a mirror, a CA or a credential.
  • The example Host pool in config/capi uses Kubernetes v1.36.3. Pools that boot a v0.2.x AMI keep v1.35.8. With the AWS cloud controller manager, use v1.36.1 for v1.36.
  • A Host booted from the arm64 image joined a v1.36.3 kubeadm cluster and ran a Pool, claims, the guest network and a flintlockd restart (hack/kubeadm-host).

Not proven yet: MicroVMs on Cloud Hypervisor (#202). Cloud Hypervisor starts, but the trial's guest kernel lacks virtio-pci.

The Operator and the Exec Agent have not changed since v0.2.1.

Manifests artifact:

ghcr.io/phoban01/battery-operator/manifests:v0.3.0@sha256:f714b72f094d8bde1a20410e8178d997d25d5acab46cf9bf46cb6f6ea46647f1
flux pull artifact oci://ghcr.io/phoban01/battery-operator/manifests:v0.3.0 --output ./battery-operator

Images, for linux/amd64 and linux/arm64:

  • ghcr.io/phoban01/battery-operator:v0.3.0
  • ghcr.io/phoban01/battery-operator/exec-agent:v0.3.0
  • ghcr.io/phoban01/battery-operator/host-image:v0.3.0

To make an AMI: make host-image-ami HOST_IMG=ghcr.io/phoban01/battery-operator/host-image:v0.3.0 HOST_IMAGE_AMI_ARGS="--bucket ... --region ...". AMIs are x86_64 only.

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