Charmed Apache Kafka Documentation - Reference - Release 156 / 126

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Revision 156/126

Wednesday, February 28, 2024

Dear community,

We are extremely thrilled and excited to share that Charmed Apache Kafka and Charmed Apache ZooKeeper have now been released as GA. You can find them in charmhub.io under the 3/stable track.

More information is available on the Canonical website, alongside its documentation. Also find the full announcement of the release here and here. And more importantly, make sure you don’t miss out the webinar that Raúl Zamora and Rob Gibbon will be holding later today.

Please reach out should you have any question, comment, feedback or information. You can find us here in Matrix or also on Discourse.

Features

  • Deploying on VM (tested with LXD, MAAS)
  • Apache ZooKeeper using SASL authentication
  • Scaling up/down in one simple Juju command
  • Multi-broker support and Highly-Available setups
  • Inter-broker authenticated communication
  • TLS/SSL support using tls-certificates Provider charms (see more here)
  • SASL/SCRAM and mTLS authentication for clients
  • DB access outside of Juju using data-integrator
  • Persistent storage support with Juju Storage
  • Super-user creation
  • Documentation featuring Diàtaxis framework

Canonical Data issues are now public on both Jira and GitHub platforms.

GitHub Releases provide a detailed list of bugfixes, PRs, and commits for each revision.

Inside the charms

  • Charmed Apache ZooKeeper charm ships the Apache ZooKeeper 3.8.2-ubuntu0, built and supported by Canonical
  • Charmed Apache Kafka charm ships the Apache Kafka 3.6.0-ubuntu0, built and supported by Canonical
  • Charmed Apache ZooKeeper charm is based on charmed-zookeeper snap on the 3/stable (Ubuntu LTS “22.04” - core22-based)
  • Charmed Apache Kafka charm is based on charmed-kafka snap on the 3/stable channel (Ubuntu LTS “22.04” - core22-based)
  • Principal charms support the latest LTS series “22.04” only.

More information about the artifacts is provided by the following table:

Artifact Track/Series Version/Revision Code
Apache ZooKeeper distribution 3.x 3.8.2-ubuntu0 5bb82d
Apache Kafka distribution 3.x 3.6.0-ubuntu0 424389
Charmed Apache ZooKeeper snap 3/stable 28 9757f4
Charmed Apache ZooKeeper operator 3/stable 126 9ebd9a
Charmed Apache Kafka snap 3/stable 30 c0ce27
Charmed Apache Kafka operator 3/stable 156 01d65c

Technical notes

  • A Charmed Apache Kafka cluster is secure by default, meaning that when deployed if there are no client charms related to it, external listeners will not be enabled.
  • We recommend deploying one data-integrator with extra-user-roles=admin alongside the Apache Kafka deployment, in order to enable listeners and also create one user with elevated permission to perform administrative tasks. For more information, see the How-to manage application guide.
  • The current release has been tested with Juju 2.9.45+ and Juju 3.1+
  • Inplace upgrade for charms tracking latest is not supported, both for Apache ZooKeeper and Apache Kafka charms. Perform data migration to upgrade to a Charmed Apache Kafka cluster managed via a 3/stable charm. For more information on how to perform the migration, see How-to migrate a cluster guide.