[Bug 1843941] Re: RBD Namespaces are not supported

[Florensa Florian]

I just posted a patch today on the qemu-devel mailing list, you can find
it there : https://lists.gnu.org/archive/html/qemu-
devel/2019-12/msg04344.html

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https://bugs.launchpad.net/bugs/1843941

Title:
  RBD Namespaces are not supported

Status in QEMU:
  New

Bug description:
  Ceph Nautilus (v14.2.0) introduced the Namespaces concept for RADOS
  Block Devices. This provides a logical separation within a RADOS Pool
  for RBD images which enables granular access control. See
  https://docs.ceph.com/docs/nautilus/releases/nautilus/ for additional
  details.

  librados and librbd support this, however qemu does not. The rbd man
  page defines how rbd images within a namespace can be referenced.
  https://docs.ceph.com/docs/nautilus/man/8/rbd/#image-snap-group-and-
  journal-specs

  Adding support for RBD namespaces would be beneficial for security and
  reducing the impact of a hypervisor being compromised and putting an
  entire Ceph pool or cluster at risk.

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