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kops/docs/releases/1.29-NOTES.md

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Release notes for kOps 1.29 series

⚠ kOps 1.29 has not been released yet! ⚠

This is a document to gather the release notes prior to the release.

Significant changes

Initial OpenTelemetry Support

We are starting to add (experimental) support for OpenTelemetry, in particular Tracing support. Setting OTEL_EXPORTER_OTLP_TRACES_FILE will write a trace file which can then be read by the traceserver program. More information and options are described in docs/opentelemetry.md. The tracing data is not expected to be particularly useful for end-users in this release; the (non-standard) recording approach is instead intended to work well with our Prow end-to-end testing system so that developers can optimize kOps.

Please note: this is not telemetry in the "phone-home" sense. The kOps project does not collect data from your machine. As an open-source project we do not even want to collect any of your data. Currently the only OpenTelemetry backend supported is writing to a filesystem (and it is opt-in). In future you will be able to configure other OpenTelemetry backends, but this data will only be sent if you enable OpenTelemetry, and only sent to where you configure.

AWS

  • Network Load Balancers in front of the Kubernetes API and bastion hosts now have a security group attached. These security groups are used for security group rules allowing incoming traffic to the NLBs as well as traffic between the NLBs and their target instances.

  • Posts event data to URL upon instance interruption action in aws-node-termination-handler with WEBHOOK_URL.

GCP

  • As of Kubernetes version 1.29, credentials for private GCR/AR repositories will be handled by the out-of-tree credential provider. This is an additional binary that each instance downloads from the assets repository.

Openstack

Breaking changes

Other breaking changes

  • kops toolbox dump limits the number of nodes dumped to 500 by default. Use --max-nodes to override.

  • Support for Kubernetes version 1.23 has been removed.

Known Issues

Deprecations

  • Support for Kubernetes version 1.24 is deprecated and will be removed in kOps 1.30.

  • Support for Kubernetes version 1.25 is deprecated and will be removed in kOps 1.31.

  • Support for AWS Classic Load Balancer for API is deprecated and should not be used for newly created clusters.

  • All legacy addons are deprecated in favor of managed addons, including the metrics server addon and the autoscaler addon.