Ceph Broker¶

Connect an existing Ceph to a juju deployed Openstack

Problem Description¶

Some customers have asked how to connect a Juju deployed Ceph to an existing OpenStack cluster that was deployed with home grown or someone else’s tooling. This causes a problem in that it is not possible to relate Ceph to the OpenStack cluster.

Proposed Change¶

A new charm will be created that acts a broker between an existing Ceph deployment, and a Juju deployed OpenStack Cloud; The charm will provide the same relations as the existing ceph-mon charm.

Alternatives¶

The alternative is manually connecting the Ceph and OpenStack together. This is fine for some customers but not acceptable for bootstack. This kind of manual configuration isn’t particularly manageable.

Implementation¶

Assignee(s)¶

Primary assignee:: ChrisMacNaughton

Gerrit Topic¶

git-review -t ceph-broker

Work Items¶

Decide on which relations the OpenStack charm requires

Expose all relations needed by way of config.yaml options.

For every relation that OpenStack expects just return the config.yaml values.

Repositories¶

Yes a new repo will be needed for this. https://github.com/openstack/charm-ceph-broker

Documentation¶

Documentation will be added to the README.md as part of the normal workflow.

Security¶

No additional security concerns.

Testing¶

Deploy OpenStack using juju.
Deploy Ceph using juju.
Deploy the Ceph-broker to a lxd container or a vm after filling out the config.yaml
Relate Ceph-broker to OpenStack and verify that OpenStack can talk to Ceph
Mojo bundle tests will be used to show this works functionally.

Dependencies¶

None

Ceph Broker