Release notes for kOps 1.27 series ¶
Significant changes ¶
The default image has been updated to Ubuntu 22.04 (Jammy).
The default retention duration for the etcd backups is now set to 90 days. This behaviour can be overridden by setting
spec.etcdClusters[*].manager.backupRetentionDaysin the cluster spec.
external-dns is now supported in IPv6 clusters.
Using swap memory is now possible by setting
As of Kubernetes version 1.27, all nodes will default to running with instance-metadata-service tokens required, with a max hop limit of 1. Newly created clusters will be configured as necessary to have these settings.
As of Kubernetes version 1.27, credentials for private ECR repositories will be handled by the out-of-tree credential provider. This is an additional binary that each instance downloads from the assets repository.
Karpenterhas been upgraded to version
0.27.xand the feature flag is no longer necessary.
Improved support for private topology.
Support for bastions has been added.
- Nodes will now assign floating IPs when they are in a subnet that is of type
Public. Previously they would do so when the respective
topologywas set to
Breaking changes ¶
- If storing the state in an S3 bucket, it is now required to either deactivate gossip support (
--dns=none) or - for example - provide the credentials via cloud-init. Due to changes in PR#15646 the
S3_*variables will not get passed on to the boot script of the nodes anymore. As a result the
kops-configuration.servicewill throw an
EnvAccessKeyNotFound: failed to find credentials in the environment.error and they will not join the cluster. Deactivating the gossip support will make the nodes contact the API servers for the bootstrap information.
Other breaking changes ¶
- Support for Kubernetes version 1.21 has been removed.
Known Issues ¶
- The Amazon VPC CNI is not compatible with Ubuntu 22.04. See kubernetes/kops#15720 and aws/amazon-vpc-cni-k8s#2103 for more info.
Support for Kubernetes version 1.22 is deprecated and will be removed in kOps 1.28.
Support for Kubernetes version 1.23 is deprecated and will be removed in kOps 1.29.
Support for Ubuntu 18.04 is deprecated and will be removed in kOps 1.28.
Canal, and Flannel are deprecated and support will be removed for Kubernetes 1.28 and later.
Support for AWS Classic Load Balancer for API is deprecated and should not be used for newly created clusters.