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Blaine Gardner c12aa6c7c5 ceph rbd-mirror: configure entirely in operator 
In the form of mon, mgr, mds, and rgw, convert the rbd-mirror to be
configured completely from the operator. This is a straightforward
conversion with one functional addition: the rbd-mirror daemon stores
*no* data and has no default data dir, so the concept of a `Dataless`
daemon is here introduced.

Signed-off-by: Blaine Gardner <blaine.gardner@suse.com>
2019-03-13 09:54:09 -06:00

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Major Themes

Action Required

Notable Features

Minio Object Stores

- Now have an additional label named `objectstore` with the name of the Object Store, to allow better selection for Services.
- Use `Readiness` and `Liveness` probes.
- Updated automatically on Object Store CRD changes.

Ceph

  • A CephNFS CRD will start NFS daemon(s) for exporting CephFS volumes or RGW buckets. See the NFS documentation.
  • Selinux labeling for mounts can now be toggled with the ROOK_ENABLE_SELINUX_RELABELING environment variable.
  • Recursive chown for mounts can now be toggled with the ROOK_ENABLE_FSGROUP environment variable.
  • Added the dashboard port configuration setting.
  • Added the dashboard ssl configuration setting.
  • Added Ceph CSI driver deployments on Kubernetes 1.13 and above.

Breaking Changes

  • Rook no longer supports Kubernetes 1.8 and 1.9.
  • Rook no longer supports running more than one monitor on the same node when hostNetwork and allowMultiplePerNode are true.
  • Rook Operator switches from Extensions v1beta1 to use Apps v1 API for DaemonSet and Deployment.

Ceph

  • Rook will no longer create a directory-based osd in the dataDirHostPath if no directories or devices are specified or if there are no disks on the host.
  • Containers in mon, mgr, mds, rgw, and rbd-mirror pods have been removed and/or changed names.
  • Config paths in mon, mgr, mds and rgw containers are now always under /etc/ceph or /var/lib/ceph and as close to Ceph's default path as possible regardless of the dataDirHostPath setting.
  • The rbd-mirror pod labels now read rbd-mirror instead of rbdmirror for consistency.

Known Issues

Deprecations

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