vmware-nsx/vmware_nsx/shell/admin/plugins/nsxv3/resources/metadata_proxy.py

136 lines
5.5 KiB
Python

# Copyright 2016 VMware, Inc. All rights reserved.
#
# 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.
import re
import netaddr
from neutron_lib.callbacks import registry
from oslo_config import cfg
from oslo_log import log as logging
from vmware_nsx.common import config # noqa
from vmware_nsx.common import utils as nsx_utils
from vmware_nsx.dhcp_meta import rpc as nsx_rpc
from vmware_nsx.plugins.nsx_v3 import availability_zones as nsx_az
from vmware_nsx.shell.admin.plugins.common import constants
from vmware_nsx.shell.admin.plugins.common import formatters
from vmware_nsx.shell.admin.plugins.common import utils as admin_utils
from vmware_nsx.shell.admin.plugins.nsxv3.resources import utils
import vmware_nsx.shell.resources as shell
from vmware_nsxlib.v3 import exceptions as nsx_exc
LOG = logging.getLogger(__name__)
neutron_client = utils.NeutronDbClient()
def _is_metadata_network(network):
# If a Neutron network has only one subnet with 169.254.169.252/30 CIDR,
# then it is an internal metadata network.
if len(network['subnets']) == 1:
subnet = neutron_client.get_subnet(None, network['subnets'][0])
if subnet['cidr'] == nsx_rpc.METADATA_SUBNET_CIDR:
return True
return False
@admin_utils.output_header
def list_metadata_networks(resource, event, trigger, **kwargs):
"""List Metadata networks in Neutron."""
if not cfg.CONF.nsx_v3.native_metadata_route:
meta_networks = [network
for network in neutron_client.get_networks()
if _is_metadata_network(network)]
LOG.info(formatters.output_formatter(constants.METADATA_PROXY,
meta_networks,
['id', 'name', 'subnets']))
else:
nsxlib = utils.get_connected_nsxlib()
tags = [{'scope': 'os-neutron-net-id'}]
ports = nsxlib.search_by_tags(resource_type='LogicalPort', tags=tags)
for port in ports['results']:
if port['attachment']['attachment_type'] == 'METADATA_PROXY':
net_id = None
for tag in port.get('tags', []):
if tag['scope'] == 'os-neutron-net-id':
net_id = tag['tag']
break
status = nsxlib.native_md_proxy.get_md_proxy_status(
port['attachment']['id'], port['logical_switch_id'])
LOG.info("Status for MD proxy on neutron network %s (logical "
"switch %s) is %s",
net_id,
port['logical_switch_id'],
status.get('proxy_status', 'Unknown'))
@admin_utils.output_header
def nsx_update_metadata_proxy_server_ip(resource, event, trigger, **kwargs):
"""Update Metadata proxy server ip on the nsx."""
nsxlib = utils.get_connected_nsxlib()
nsx_version = nsxlib.get_version()
if not nsx_utils.is_nsx_version_1_1_0(nsx_version):
LOG.error("This utility is not available for NSX version %s",
nsx_version)
return
server_ip = None
az_name = nsx_az.DEFAULT_NAME
if kwargs.get('property'):
properties = admin_utils.parse_multi_keyval_opt(kwargs['property'])
server_ip = properties.get('server-ip')
az_name = properties.get('availability-zone', az_name)
if not server_ip or not netaddr.valid_ipv4(server_ip):
LOG.error("Need to specify a valid server-ip parameter")
return
config.register_nsxv3_azs(cfg.CONF, cfg.CONF.nsx_v3.availability_zones)
if (az_name != nsx_az.DEFAULT_NAME and
az_name not in cfg.CONF.nsx_v3.availability_zones):
LOG.error("Availability zone %s was not found in the configuration",
az_name)
return
az = nsx_az.NsxV3AvailabilityZones().get_availability_zone(az_name)
az.translate_configured_names_to_uuids(nsxlib)
if (not az.metadata_proxy or
not cfg.CONF.nsx_v3.native_dhcp_metadata):
LOG.error("Native DHCP metadata is not enabled in the configuration "
"of availability zone %s", az_name)
return
metadata_proxy_uuid = az._native_md_proxy_uuid
try:
mdproxy = nsxlib.native_md_proxy.get(metadata_proxy_uuid)
except nsx_exc.ResourceNotFound:
LOG.error("metadata proxy %s not found", metadata_proxy_uuid)
return
# update the IP in the URL
url = mdproxy.get('metadata_server_url')
url = re.sub(r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}', server_ip, url)
LOG.info("Updating the URL of the metadata proxy server %(uuid)s to "
"%(url)s", {'uuid': metadata_proxy_uuid, 'url': url})
nsxlib.native_md_proxy.update(metadata_proxy_uuid, server_url=url)
LOG.info("Done.")
registry.subscribe(list_metadata_networks,
constants.METADATA_PROXY,
shell.Operations.LIST.value)
registry.subscribe(nsx_update_metadata_proxy_server_ip,
constants.METADATA_PROXY,
shell.Operations.NSX_UPDATE_IP.value)