Open Stack

Dear all,

At CERN, we are currently adding the radosgw component in our private
cloud OpenStack based offering. In order to ease the integration with
lifecycle management, we are proposing to enable the possibility to add
users with the keystone type through the radosgw Admin Ops API.

During the integration process, we observed that the users are created
upon first user request onto the radosgw. For the quota configuration,
this is taken from the default values configured and once this user has
been created,then it can be modified later.

For the lifecycle management of resources, we are using OpenStack
Mistral that is orchestrating the needed steps to configure the project
from creation to be ready to be offered to the user. In this workflow,
we configure the services that the project has access and the quotas
associated with them.

For the radosgw component we need to consider two different events:
provisioning and decommissioning of resources in it. On the cleanup /
decommissioning side every bit is covered through the admin operations
api. 

Here comes our problem.

On the provisioning side, we could not apply quotas to users that have
not yet been created by radosgw (as it waits for the first user
request). Once they are created, they have a type attribute with the
value keystone

So we would like to be able to create the users on radosgw with the
keystone type, way before the first user request, by adding the
possibility to specify the type on user creation.

We think this addition has added value for other OpenStack operators
that are using radosgw for their S3/Swift offering and gives them
flexibility for lifecycle management of the resources contained in
radosgw. We have submmitted a feature request for this particular
addition to Ceph tracker and we would like to know if you are also
interested into this feature as well.


Cheers,
Jose Castro Leon
CERN Cloud Infrastructure Team