Altinity Kubernetes Operator for ClickHouse® Release Notes

The latest release of the Altinity Kubernetes Operator for ClickHouse® is always available at https://github.com/Altinity/clickhouse-operator/releases/latest. Links to release notes for older releases follow the notes for the current release.

Release 0.24.2

Released 2024-12-06

Full Changelog: https://github.com/Altinity/clickhouse-operator/compare/release-0.24.1...release-0.24.2

Inherit kubectl annotations when managing statefulsets by @ondrej-smola in #1582. That allows to avoid unexpected restarts
Remove openSSL from /etc/clickhouse-keeper/config.d/01-keeper-01-default-config.xml by @Slach in #1574
Faster startup of big clusters

Released 2024-10-14

Full Changelog: https://github.com/Altinity/clickhouse-operator/compare/release-0.23.7...release-0.24.0

ClickHouseKeeper support has been fully re-written. It is now fully compatible with CHI in syntax and supported functionality that closes multiple issues discovered by early adopters. The downside is that CHK resources created by operator 0.23.x will loose the storage and change service name due to different naming conventions. See CHK upgrade instructions from 0.23 to 0.24 for the details. This closes #1504, #1497, #1469, #1465, #1459, #1408, #1362, #1296

Added ‘pdbMaxUnavailable’ attribute to the cluster to manage PDB behavior. See 01-simple-layout-03-multiple-clusters-pdb-spec.yaml
Added ‘all-clusters’ cluster into auto-generated remote_servers.xml that references multiple clusters in CHI with respect to shards and replicas. by @tanner-bruce in https://github.com/Altinity/clickhouse-operator/pull/1409

Operator will now create zookeeper root path if specified in CHI configuration. Previously it assumed root path already exists.
Operator now waits for the last host to be included in the cluster before marking CHI as completed
Update helm chart to allow add pod labels by @bruno-s-coelho in https://github.com/Altinity/clickhouse-operator/pull/1359. Closes #1356
Support install operator from local template by @orloffv in https://github.com/Altinity/clickhouse-operator/pull/1401
Added prometheus zeros init for reconciliation metrics by @nmiculinic in https://github.com/Altinity/clickhouse-operator/pull/1398
Update helm chart to allow adding topologySpreadConstraints by @naturalett in https://github.com/Altinity/clickhouse-operator/pull/1462
Use ConfigMap instead of Secret for grafana dashboards by @cwrau in https://github.com/Altinity/clickhouse-operator/pull/1457
Altinity_ClickHouse_Operator_dashboard.json: dashboard has been updated by @nmiakushina in https://github.com/Altinity/clickhouse-operator/pull/1512 and https://github.com/Altinity/clickhouse-operator/pull/1515

Fixed hostAliases in podTemplate by @chengjoey in https://github.com/Altinity/clickhouse-operator/pull/1453. Closes #1445
Fix install zookeeper operator by @realyota in https://github.com/Altinity/clickhouse-operator/pull/1437
Fix custom hostAliases do not take effect in sts by @chengjoey in https://github.com/Altinity/clickhouse-operator/pull/1453
Fixed ClickHouseKeeper dashboard templates/queries by @ja14000 in https://github.com/Altinity/clickhouse-operator/pull/1481

Details of all releases, including older releases, are available through the project’s Releases page.