my-rook-config/PendingReleaseNotes.md

Major Themes

Action Required

Notable Features

• The Cluster CRD can now be edited/updated to add and remove storage nodes. Note that only adding/removing entire nodes is currently supported, but adding individual disks/directories will also be supported soon.
• Monitoring is now done through the Ceph MGR service for Ceph storage.
• The CRUSH root can be specified for pools with the crushRoot property, rather than always using the default root. Configuration of the CRUSH hierarchy is necessary with the ceph osd crush commands in the toolbox.

Operator Settings

• AGENT_TOLERATION: Toleration can be added to the Rook agent, such as to run on the master node.
• FLEXVOLUME_DIR_PATH: Flex volume directory can be overridden on the Rook agent.

Breaking Changes

• armhf build of Rook have been removed. Ceph is not supported or tested on armhf. arm64 support continues.

Cluster CRD

• Removed the versionTag property. The container version to launch in all pods will be the same as the version of the operator container.
• Added the cluster.rook.io finalizer. When a cluster is deleted, the operator will cleanup resources and remove the finalizer, which then allows K8s to delete the CRD.

Operator

• Removed the ROOK_REPO_PREFIX env var. All containers will be launched with the same image as the operator

Known Issues

Deprecations

• Monitoring through rook-api is deprecated. The Ceph MGR service named rook-ceph-mgr port 9283 path / should be used instead.