We're happy to announce the fourth bugfix release in the Octopus series.
In addition to a security fix in RGW, this release brings a range of fixes
across all components. We recommend that all Octopus users upgrade to this
release. For a detailed release notes with links & changelog please
refer to the official blog entry at https://ceph.io/releases/v15-2-4-octopus-released

Notable Changes
---------------
* CVE-2020-10753: rgw: sanitize newlines in s3 CORSConfiguration's ExposeHeader
  (William Bowling, Adam Mohammed, Casey Bodley)

* Cephadm: There were a lot of small usability improvements and bug fixes:
  * Grafana when deployed by Cephadm now binds to all network interfaces.
  * `cephadm check-host` now prints all detected problems at once.
  * Cephadm now calls `ceph dashboard set-grafana-api-ssl-verify false`
    when generating an SSL certificate for Grafana.
  * The Alertmanager is now correctly pointed to the Ceph Dashboard
  * `cephadm adopt` now supports adopting an Alertmanager
  * `ceph orch ps` now supports filtering by service name
  * `ceph orch host ls` now marks hosts as offline, if they are not
    accessible.

* Cephadm can now deploy NFS Ganesha services. For example, to deploy NFS with
  a service id of mynfs, that will use the RADOS pool nfs-ganesha and namespace
  nfs-ns::

    ceph orch apply nfs mynfs nfs-ganesha nfs-ns

* Cephadm: `ceph orch ls --export` now returns all service specifications in
  yaml representation that is consumable by `ceph orch apply`. In addition,
  the commands `orch ps` and `orch ls` now support `--format yaml` and
  `--format json-pretty`.

* Cephadm: `ceph orch apply osd` supports a `--preview` flag that prints a preview of
  the OSD specification before deploying OSDs. This makes it possible to
  verify that the specification is correct, before applying it.

* RGW: The `radosgw-admin` sub-commands dealing with orphans --
  `radosgw-admin orphans find`, `radosgw-admin orphans finish`, and
  `radosgw-admin orphans list-jobs` -- have been deprecated. They have
  not been actively maintained and they store intermediate results on
  the cluster, which could fill a nearly-full cluster.  They have been
  replaced by a tool, currently considered experimental,
  `rgw-orphan-list`.

* RBD: The name of the rbd pool object that is used to store
  rbd trash purge schedule is changed from "rbd_trash_trash_purge_schedule"
  to "rbd_trash_purge_schedule". Users that have already started using
  `rbd trash purge schedule` functionality and have per pool or namespace
  schedules configured should copy "rbd_trash_trash_purge_schedule"
  object to "rbd_trash_purge_schedule" before the upgrade and remove
  "rbd_trash_purge_schedule" using the following commands in every RBD
  pool and namespace where a trash purge schedule was previously
  configured::

    rados -p <pool-name> [-N namespace] cp rbd_trash_trash_purge_schedule rbd_trash_purge_schedule
    rados -p <pool-name> [-N namespace] rm rbd_trash_trash_purge_schedule

  or use any other convenient way to restore the schedule after the
  upgrade.

Getting Ceph
------------
* Git at git://github.com/ceph/ceph.git
* Tarball at http://download.ceph.com/tarballs/ceph-14.2.10.tar.gz
* For packages, see http://docs.ceph.com/docs/master/install/get-packages/
* Release git sha1: 7447c15c6ff58d7fce91843b705a268a1917325c

--
David Galloway
Systems Administrator, RDU
Ceph Engineering
IRC: dgalloway
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