6526efe612
Partially-Implements: blueprint cinder-quobyte-backend Change-Id: I6de535ea4081fe0de52858ae582420617204e914
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2.2 KiB
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79 lines
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This work is licensed under a Creative Commons Attribution 3.0 Unported
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License.
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http://creativecommons.org/licenses/by/3.0/legalcode
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======================================
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Add support for Quobyte cinder backend
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======================================
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https://blueprints.launchpad.net/kolla-ansible/+spec/cinder-quobyte-backend
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Currently there is no option to enable the use of Quobyte as a backend for Cinder
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within kolla. Since there is support for Quobyte in Cinder and Nova, it should be
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a valid option in Kolla as well.
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Problem description
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===================
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Quobyte is a software defined storage solution that has a Cinder driver allowing
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it to be used with Cinder and Nova. Currently there is no option in Kolla to
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enable the use of Quobyte in Cinder and Nova.
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Use cases
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---------
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Allowing the use of a Quobyte volume as a backend for Cinder in Kolla.
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Proposed change
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===============
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- Add an ``enable_cinder_backend_quobyte`` option to ``etc/kolla/globals.yml``
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- If enabled, add the shared propagation to the ``/var/lib/nova/mnt`` bind, same as NFS.
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This would require extending the logic in ``ansible/roles/nova/defaults/main.yml`` to
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check if either NFS or Quobyte are enabled as Cinder backends.
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- Update documentation in ``doc/source/reference/cinder-guide.rst`` to include configuration
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of the Quobyte Cinder driver.
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Security impact
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---------------
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None
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Performance Impact
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------------------
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None
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Implementation
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==============
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Assignee(s)
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-----------
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Patrick O'Neill <patrick.oneill@vscaler.com>
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Milestones
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----------
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Target Milestone for completion:
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stein-1
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Work Items
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----------
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1. Create variable in globals.yml to allow Cinder Quobyte backend to be enabled.
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2. Define Quobyte as a valid backend option in prechecks task.
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3. Add shared propagation to docker bind mounts in Nova.
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4. Update documentation to cover Cinder and Nova driver configuration for Quobyte.
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Testing
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=======
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Following the cinder reference of kolla to use quobyte as cinder backend. Perform
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checks to ensure that the backend is functional by creating volumes in cinder
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and mounting volumes to instances.
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Documentation Impact
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====================
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``doc/source/reference/cinder-guide.rst`` needs to be updated to include a section
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on Quobyte driver configuration.
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