Quota Update

Exposes the existing Quotas.update call in the management API to
the user API and implements a corresponding shell command.  Admin
privileges will be required to execute the command.

Change-Id: I7cc19a9d2c034bb4b0695cacf7e1bc18a4fd999f

specs/newton/quota-management.rst

@@ -0,0 +1,171 @@
+..
+    This work is licensed under a Creative Commons Attribution 3.0 Unported
+    License.
+
+    http://creativecommons.org/licenses/by/3.0/legalcode
+
+    Sections of this template were taken directly from the Nova spec
+    template at:
+    https://github.com/openstack/nova-specs/blob/master/specs/juno-template.rst
+
+..
+
+
+================
+Quota Management
+================
+
+A proposal to expose the existing Quota.update API from the management
+API to the user through the non-management API.
+
+Launchpad Blueprint:
+https://blueprints.launchpad.net/trove/+spec/quota-management
+
+
+Problem Description
+===================
+
+There is a Quota.update API in the management API to allow an operator
+to change the quota allocation for a resource.  Unfortunately, there
+is no CLI to access that call.
+
+
+Proposed Change
+===============
+
+Add the v1.Quotas class to the v1.client so that an operator can
+execute a command to change the allocation for a resource.
+
+
+Configuration
+-------------
+
+No impact.
+
+Database
+--------
+
+No impact.
+
+Public API
+----------
+
+No impact (the REST API already exists).
+
+Public API Security
+-------------------
+
+The added call will be restricted to admin users.
+
+Python API
+----------
+
+Adds client.quotas.update to the python client:
+
+.. code-block:: python
+
+    def update(self, id, quotas):
+        """Set limits for quotas."""
+
+This call takes a dict indicating the change to be made:
+
+    trove_client.quotas.update(project.id, {'instances': 10})
+
+
+Also adds client.quotas.show to the python client:
+
+.. code-block:: python
+
+    def show(self, id):
+        """Shows usage information for quota managed resources."""
+
+This call takes the id of the project and returns all resources with
+their usage:
+
+    trove_client.quotas.show(project.id)
+
+
+
+
+CLI (python-troveclient)
+------------------------
+
+Two new shell commands will be added::
+
+  $ trove quota-show <project id>
+
+  $ trove quota-update <project id> volumes 50
+
+
+Internal API
+------------
+
+No impact.
+
+Guest Agent
+-----------
+
+No Impact.
+
+Alternatives
+------------
+
+
+
+Dashboard Impact (UX)
+=====================
+
+This will be available only via the command line.
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  6-morgan
+
+
+Milestones
+----------
+
+Target Milestone for completion:
+  Newton
+
+Work Items
+----------
+
+Patch already delivered to gerrit.
+
+
+Upgrade Implications
+====================
+
+None.
+
+
+Dependencies
+============
+
+
+
+Testing
+=======
+
+Tests already exist for this functionality.
+
+
+Documentation Impact
+====================
+
+
+
+References
+==========
+
+
+Appendix
+========
+
+Any additional technical information and data.