strimzi/strimzi-kafka-operator 0.29.0-rc1

on GitHub

Main changes since 0.28

• Add support for Apache Kafka 3.0.1, 3.1.1 and 3.2.0
• Increase the size of the /tmp volumes to 5Mi to allow unpacking of compression libraries
• Use /healthz endpoint for Kafka Exporter health checks
• Renew user certificates in User Operator only during maintenance windows
• Ensure Topic Operator using Kafka Streams state store can start up successfully
• Update Cruise Control to 2.5.89
• Remove TLS sidecar from Cruise Control pod. Cruise Control is now configured to not using ZooKeeper, so the TLS sidecar is not needed anymore.
• Allow Cruise Control topic names to be configured
• Add support for spec.rack.topologyKey property in Mirror Maker 2 to enable "fetch from the closest replica" feature.
• Support for the s390x platform
  (The s390x support is currently considered as experimental. We are not aware of any issues, but the s390x build doesn't at this point undergo the same level of testing as the AMD64 container images.)
• Update Strimzi Kafka Bridge to 0.21.5
• Added rebalancing modes on the KafkaRebalance custom resource
  • full: this mode runs a full rebalance moving replicas across all the brokers in the cluster. This is the default one if not specified.
  • add-brokers: after scaling up the cluster, this mode is used to move replicas to the newly added brokers specified in the custom resource.
  • remove-brokers: this mode is used to move replicas off the brokers that are going to be removed, before scaling down the cluster.
• Experimental KRaft mode (ZooKeeper-less Kafka) which can be enabled using the UseKRaft feature gate.
  Important: Use it for development and testing only!

All changes can be found under the 0.29.0 milestone.

Changes, deprecations and removals

• Since the Cruise Control TLS sidecar has been removed, the related configuration options .spec.cruiseControl.tlsSidecar and .spec.cruiseControl.template.tlsSidecar in the Kafka custom resource are now deprecated.

Maven artifacts

To test the Maven artifacts which are part of this release, use the staging repository by including following in your pom.xml:

  <repositories>
    <repository>
      <id>staging</id>
      <url>https://oss.sonatype.org/content/repositories/iostrimzi-1169</url>
    </repository>
  </repositories>

Upgrading from Strimzi 0.28

See the documentation for upgrade instructions.

Upgrading from Strimzi 0.22 or earlier

This release supports only the API version v1beta2 and CRD version apiextensions.k8s.io/v1. If upgrading from Strimzi 0.22, migration to v1beta2 needs to be completed for all Strimzi CRDs and CRs before the upgrade to 0.28 is done! If upgrading from Strimzi version earlier than 0.22, you need to first install the CRDs from Strimzi 0.22 and complete the migration to v1beta2 for all Strimzi CRDs and CRs before the upgrade to 0.28 is done!

For more details about the CRD upgrades, see the documentation.