Adds per-user-quotas support for more detailed quotas management

Implements blueprint per-user-quotas.

Based on the original quotas structure.

NOTE:
quota_instances, quota_cores, quota_ram, quota_volumes,
quota_gigabytes, quota_key_pairs and quota_security_groups
are supported per user.

Allow 'projectadmin' role to access the user quota setting
methods.

Add commands 'nova-manage quota project/user' for quotas
management.

Change-Id: I07a39499432571fedd819c53ae414240cefc3354

bin/nova-manage

@@ -224,6 +224,10 @@ def _db_error(caught_exception):
 class ProjectCommands(object):
     """Class for managing projects."""
 
+    @args('--project', dest="project_id", metavar='<Project name>',
+            help='Project name')
+    @args('--key', dest="key", metavar='<key>', help='Key')
+    @args('--value', dest="value", metavar='<value>', help='Value')
     def quota(self, project_id, key=None, value=None):
         """Set or display quotas for project"""
         ctxt = context.get_admin_context()
@@ -256,6 +260,52 @@ class ProjectCommands(object):
 AccountCommands = ProjectCommands
 
 
+class QuotaCommands(object):
+    """Class for managing quotas."""
+
+    @args('--project', dest="project_id", metavar='<Project name>',
+            help='Project name')
+    @args('--key', dest="key", metavar='<key>', help='Key')
+    @args('--value', dest="value", metavar='<value>', help='Value')
+    def project(self, project_id, key=None, value=None):
+        """Set or display quotas for project"""
+        ctxt = context.get_admin_context()
+        if key:
+            if value.lower() == 'unlimited':
+                value = None
+            try:
+                db.quota_update(ctxt, project_id, key, value)
+            except exception.ProjectQuotaNotFound:
+                db.quota_create(ctxt, project_id, key, value)
+        project_quota = QUOTAS.get_project_quotas(ctxt, project_id)
+        for key, value in project_quota.iteritems():
+            if value['limit'] < 0 or value['limit'] is None:
+                value['limit'] = 'unlimited'
+            print '%s: %s' % (key, value['limit'])
+
+    @args('--user', dest="user_id", metavar='<User name>',
+            help='User name')
+    @args('--project', dest="project_id", metavar='<Project name>',
+            help='Project name')
+    @args('--key', dest="key", metavar='<key>', help='Key')
+    @args('--value', dest="value", metavar='<value>', help='Value')
+    def user(self, user_id, project_id, key=None, value=None):
+        """Set or display quotas for user"""
+        ctxt = context.get_admin_context()
+        if key:
+            if value.lower() == 'unlimited':
+                value = None
+            try:
+                db.quota_update_for_user(ctxt, user_id, project_id, key, value)
+            except exception.UserQuotaNotFound:
+                db.quota_create_for_user(ctxt, user_id, project_id, key, value)
+        user_quota = QUOTAS.get_user_quotas(ctxt, user_id, project_id)
+        for key, value in user_quota.iteritems():
+            if value['limit'] < 0 or value['limit'] is None:
+                value['limit'] = 'unlimited'
+            print '%s: %s' % (key, value['limit'])
+
+
 class FixedIpCommands(object):
     """Class for managing fixed ip."""
 
@@ -1319,6 +1369,7 @@ CATEGORIES = [
     ('logs', GetLogCommands),
     ('network', NetworkCommands),
     ('project', ProjectCommands),
+    ('quota', QuotaCommands),
     ('service', ServiceCommands),
     ('shell', ShellCommands),
     ('sm', StorageManagerCommands),

nova/tests/policy.json

@@ -105,7 +105,8 @@
     "compute_extension:networks": [],
     "compute_extension:networks:view": [],
     "compute_extension:quotas:show": [],
-    "compute_extension:quotas:update": [],
+    "compute_extension:quotas:update_for_project": [],
+    "compute_extension:quotas:update_for_user": [],
     "compute_extension:quota_classes": [],
     "compute_extension:rescue": [],
     "compute_extension:security_groups": [],