vmware-nsx/quantum/extensions/providernet.py
Yong Sheng Gong 119df30750 Add quota per-tenant.
blueprint quantum-api-quotas

We implement it as an extension for linux bridge and ovs plugins.
We also expose the /quotas/Xx url to client to operate the quota.
We need admin role to show other tenant's quota, and to update quota data.
Any user can show its own tenant's quota. An DB table is used to save the
quota for each tenant.

To use it, we have in quantum.conf:
quota_driver = quantum.extensions._quotav2_driver.DbQuotaDriver

The default quotas for each tenant are defined in quantum.conf too.

In addition, modify extension framework to allow exposing a new resource and
its controler. The extension can check the environment, such as configuration
in global cfg.CONF to decide if it can be enabled.

Also, we can define enabled extensions for each plugin in extensions.py
New resources can be put into quota framework via quota_items in nova.conf

Change-Id: I54d6107fdb2808cdae1a40b501ed8c7f379dedee
2012-08-14 23:27:56 +08:00

80 lines
2.8 KiB
Python

# Copyright (c) 2012 OpenStack, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from quantum.api.v2 import attributes
EXTENDED_ATTRIBUTES_2_0 = {
'networks': {
'provider:network_type': {'allow_post': True, 'allow_put': True,
'validate': {'type:values': ['flat',
'vlan']},
'default': attributes.ATTR_NOT_SPECIFIED,
'is_visible': True},
'provider:physical_network': {'allow_post': True, 'allow_put': True,
'default': attributes.ATTR_NOT_SPECIFIED,
'is_visible': True},
'provider:vlan_id': {'allow_post': True, 'allow_put': True,
'convert_to': int,
'validate': {'type:range': (1, 4095)},
'default': attributes.ATTR_NOT_SPECIFIED,
'is_visible': True},
}
}
class Providernet(object):
"""Extension class supporting provider networks.
This class is used by quantum's extension framework to make
metadata about the provider network extension available to
clients. No new resources are defined by this extension. Instead,
the existing network resource's request and response messages are
extended with attributes in the provider namespace.
To create a provider VLAN network using the CLI with admin rights:
(shell) net-create --tenant_id <tenant-id> <net-name> \
--provider:vlan_id <vlan-id>
With admin rights, network dictionaries returned from CLI commands
will also include provider attributes.
"""
@classmethod
def get_name(cls):
return "Provider Network"
@classmethod
def get_alias(cls):
return "provider"
@classmethod
def get_description(cls):
return "Expose mapping of virtual networks to VLANs and flat networks"
@classmethod
def get_namespace(cls):
return "http://docs.openstack.org/ext/provider/api/v1.0"
@classmethod
def get_updated(cls):
return "2012-07-23T10:00:00-00:00"
def get_extended_resources(self, version):
if version == "2.0":
return EXTENDED_ATTRIBUTES_2_0
else:
return {}