Expose Quota.update API

There exists a method in the management API to change the quota
for a given resource.  This change exposes that API via a new
"trove quota-update" command.  Also, adds v1.Quotas to the python
client.

Note that this command requires admin privileges.

Partial implements: blueprint bp/quota-management
Change-Id: I6ca1a87fbc46781f83bc9b7bd33745783b8aaab1

releasenotes/notes/quota-upgrade-aed30d50c1f58502.yaml

@@ -0,0 +1,4 @@
+features:
+  - Adds quota-show and quota-update commands to show the limits for all
+    resources and to change the limit for a single resource.  These commands
+    require admin privileges.

troveclient/v1/client.py

@@ -26,6 +26,7 @@ from troveclient.v1 import limits
 # from troveclient.v1 import management
 from troveclient.v1 import metadata
 from troveclient.v1 import modules
+from troveclient.v1 import quota
 from troveclient.v1 import root
 from troveclient.v1 import security_groups
 from troveclient.v1 import users
@@ -81,7 +82,7 @@ class Client(object):
         self.modules = modules.Modules(self)
 
         # self.hosts = Hosts(self)
-        # self.quota = Quotas(self)
+        self.quota = quota.Quotas(self)
         # self.storage = StorageInfo(self)
         # self.management = Management(self)
         # self.management = MgmtClusters(self)

troveclient/v1/quota.py

@@ -34,7 +34,7 @@ class Quotas(base.ManagerWithFind):
             raise Exception("Call to " + url + " did not return a body.")
         if 'quotas' not in body:
             raise Exception("Missing key value 'quotas' in response body.")
-        return body['quotas']
+        return [self.resource_class(self, quota) for quota in body['quotas']]
 
     def update(self, id, quotas):
         """Set limits for quotas."""

troveclient/v1/shell.py

@@ -2137,3 +2137,24 @@ def do_log_save(cs, args):
 #         args.datastore_version,
 #         args.name,
 #     )
+
+@utils.arg('tenant_id', metavar='<tenant_id>',
+           help='Id of tenant for which to show quotas.')
+@utils.service_type('database')
+def do_quota_show(cs, args):
+    """Show quotas for a tenant."""
+    utils.print_list(cs.quota.show(args.tenant_id),
+                     ['resource', 'in_use', 'reserved', 'limit'])
+
+
+@utils.arg('tenant_id', metavar='<tenant_id>',
+           help='Id of tenant for which to update quotas.')
+@utils.arg('resource', metavar='<resource>',
+           help='Id of resource to change.')
+@utils.arg('limit', metavar='<limit>', type=int,
+           help='New limit to set for the named resource.')
+@utils.service_type('database')
+def do_quota_update(cs, args):
+    """Update quotas for a tenant."""
+    utils.print_dict(cs.quota.update(args.tenant_id,
+                                     {args.resource: args.limit}))