Cinder: Support for max_over_subscription_ratio in Barclamp

[snschee]

currently we are not able to change max_over_subscription_ratio for Cinder volumes:

root@d2c-76-8a-ac-64-6e:~ # cinder get-pools --detail
+-----------------------------+----------------------------------------------------------------------------+
|           Property          |                                   Value                                    |
+-----------------------------+----------------------------------------------------------------------------+
|         QoS_support         |                                    True                                    |
|    allocated_capacity_gb    |                                    695                                     |
|        driver_version       |                                   1.0.0                                    |
|       free_capacity_gb      |                                   728.3                                    |
| max_over_subscription_ratio |                                    20.0                                    |
...

Can you please introduce the cinder.conf parameter to the Cinder Barclamp raw attributes to be adjustable.

[matelakat]

Building an mkcloud environment for this...

[matelakat]

The fix for 3.0 is here: crowbar#884

[matelakat]

Fix for Master: crowbar#898

[matelakat]

The fix for 3.0 is here: crowbar#884

This has been closed, as it was waiting for the change to be accepted to master branch. That change needs to be re-worked

[matelakat]

The backport patch is here: crowbar#968

[matelakat]

@matelakat please backport it to our branch please