4ad3cae6ff
This is feature patch (3 of 3) that introduces support for transitioning existing NSX-based deployments from the agent based model of providing dhcp and metadata proxy services to the new agentless based mode. In 'combined' mode, existing networks will still be served by the existing infrastructure, whereas new networks will be served by the new infrastructure. Networks may be migrated to the model using a new CLI tool provided, called 'neutron-nsx-manage'. Currently the tool provides two admin-only commands: neutron-nsx-manage net-report <net-id-or-name> This will check that the network can be migrated and returns the resources currently in use. And: neutron-nsx-manage net-migrate <net-id-or-name> This will move the network over the new model and deallocate resources from the agent. Once a network has been migrated there is no turning back. Completes-blueprint nsx-integrated-services Change-Id: I37c9aa0e76124e1023899106406de7be6714c24d
266 lines
9.5 KiB
Python
266 lines
9.5 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 VMware, Inc.
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# All Rights Reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import json
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from neutron.common import exceptions as exception
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from neutron.openstack.common import log
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from neutron.plugins.nicira.common import exceptions as nvp_exc
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from neutron.plugins.nicira.common import utils
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from neutron.plugins.nicira import NvpApiClient
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from neutron.plugins.nicira.nvplib import _build_uri_path
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from neutron.plugins.nicira.nvplib import do_request
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HTTP_GET = "GET"
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HTTP_POST = "POST"
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HTTP_DELETE = "DELETE"
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HTTP_PUT = "PUT"
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SERVICECLUSTER_RESOURCE = "service-cluster"
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LSERVICESNODE_RESOURCE = "lservices-node"
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LSERVICESNODEPORT_RESOURCE = "lport/%s" % LSERVICESNODE_RESOURCE
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SUPPORTED_METADATA_OPTIONS = ['metadata_proxy_shared_secret']
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LOG = log.getLogger(__name__)
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def service_cluster_exists(cluster, svc_cluster_id):
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exists = False
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try:
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exists = (
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svc_cluster_id and
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do_request(HTTP_GET,
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_build_uri_path(SERVICECLUSTER_RESOURCE,
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resource_id=svc_cluster_id),
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cluster=cluster) is not None)
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except exception.NotFound:
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pass
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return exists
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def lsn_for_network_create(cluster, network_id):
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lsn_obj = {
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"service_cluster_uuid": cluster.default_service_cluster_uuid,
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"tags": utils.get_tags(n_network_id=network_id)
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}
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return do_request(HTTP_POST,
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_build_uri_path(LSERVICESNODE_RESOURCE),
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json.dumps(lsn_obj),
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cluster=cluster)["uuid"]
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def lsn_for_network_get(cluster, network_id):
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filters = {"tag": network_id, "tag_scope": "n_network_id"}
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results = do_request(HTTP_GET,
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_build_uri_path(LSERVICESNODE_RESOURCE,
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fields="uuid",
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filters=filters),
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cluster=cluster)['results']
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if not results:
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raise exception.NotFound()
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elif len(results) == 1:
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return results[0]['uuid']
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def lsn_delete(cluster, lsn_id):
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do_request(HTTP_DELETE,
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_build_uri_path(LSERVICESNODE_RESOURCE,
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resource_id=lsn_id),
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cluster=cluster)
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def lsn_port_host_entries_update(
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cluster, lsn_id, lsn_port_id, conf, hosts_data):
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hosts_obj = {'hosts': hosts_data}
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id,
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extra_action=conf),
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json.dumps(hosts_obj),
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cluster=cluster)
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def lsn_port_create(cluster, lsn_id, port_data):
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port_obj = {
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"ip_address": port_data["ip_address"],
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"mac_address": port_data["mac_address"],
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"tags": utils.get_tags(n_mac_address=port_data["mac_address"],
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n_subnet_id=port_data["subnet_id"]),
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"type": "LogicalServicesNodePortConfig",
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}
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return do_request(HTTP_POST,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id),
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json.dumps(port_obj),
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cluster=cluster)["uuid"]
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def lsn_port_delete(cluster, lsn_id, lsn_port_id):
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return do_request(HTTP_DELETE,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id),
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cluster=cluster)
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def _lsn_port_get(cluster, lsn_id, filters):
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results = do_request(HTTP_GET,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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fields="uuid",
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filters=filters),
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cluster=cluster)['results']
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if not results:
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raise exception.NotFound()
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elif len(results) == 1:
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return results[0]['uuid']
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def lsn_port_by_mac_get(cluster, lsn_id, mac_address):
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filters = {"tag": mac_address, "tag_scope": "n_mac_address"}
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return _lsn_port_get(cluster, lsn_id, filters)
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def lsn_port_by_subnet_get(cluster, lsn_id, subnet_id):
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filters = {"tag": subnet_id, "tag_scope": "n_subnet_id"}
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return _lsn_port_get(cluster, lsn_id, filters)
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def lsn_port_info_get(cluster, lsn_id, lsn_port_id):
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result = do_request(HTTP_GET,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id),
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cluster=cluster)
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for tag in result['tags']:
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if tag['scope'] == 'n_subnet_id':
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result['subnet_id'] = tag['tag']
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break
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return result
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def lsn_port_plug_network(cluster, lsn_id, lsn_port_id, lswitch_port_id):
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patch_obj = {
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"type": "PatchAttachment",
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"peer_port_uuid": lswitch_port_id
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}
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try:
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id,
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is_attachment=True),
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json.dumps(patch_obj),
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cluster=cluster)
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except NvpApiClient.Conflict:
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# This restriction might be lifted at some point
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msg = (_("Attempt to plug Logical Services Node %(lsn)s into "
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"network with port %(port)s failed. PatchAttachment "
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"already exists with another port") %
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{'lsn': lsn_id, 'port': lswitch_port_id})
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LOG.exception(msg)
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raise nvp_exc.LsnConfigurationConflict(lsn_id=lsn_id)
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def _lsn_configure_action(
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cluster, lsn_id, action, is_enabled, obj):
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lsn_obj = {"enabled": is_enabled}
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lsn_obj.update(obj)
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODE_RESOURCE,
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resource_id=lsn_id,
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extra_action=action),
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json.dumps(lsn_obj),
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cluster=cluster)
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def _lsn_port_configure_action(
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cluster, lsn_id, lsn_port_id, action, is_enabled, obj):
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODE_RESOURCE,
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resource_id=lsn_id,
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extra_action=action),
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json.dumps({"enabled": is_enabled}),
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cluster=cluster)
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do_request(HTTP_PUT,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id,
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extra_action=action),
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json.dumps(obj),
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cluster=cluster)
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def lsn_port_dhcp_configure(
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cluster, lsn_id, lsn_port_id, is_enabled=True, dhcp_options=None):
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dhcp_options = dhcp_options or {}
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opts = ["%s=%s" % (key, val) for key, val in dhcp_options.iteritems()]
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dhcp_obj = {
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'options': {'options': opts}
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}
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_lsn_port_configure_action(
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cluster, lsn_id, lsn_port_id, 'dhcp', is_enabled, dhcp_obj)
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def lsn_metadata_configure(
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cluster, lsn_id, is_enabled=True, metadata_info=None):
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opts = [
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"%s=%s" % (opt, metadata_info[opt])
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for opt in SUPPORTED_METADATA_OPTIONS
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if metadata_info.get(opt)
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]
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meta_obj = {
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'metadata_server_ip': metadata_info['metadata_server_ip'],
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'metadata_server_port': metadata_info['metadata_server_port'],
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'misc_options': opts
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}
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_lsn_configure_action(
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cluster, lsn_id, 'metadata-proxy', is_enabled, meta_obj)
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def _lsn_port_host_action(
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cluster, lsn_id, lsn_port_id, host_obj, extra_action, action):
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do_request(HTTP_POST,
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_build_uri_path(LSERVICESNODEPORT_RESOURCE,
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parent_resource_id=lsn_id,
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resource_id=lsn_port_id,
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extra_action=extra_action,
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filters={"action": action}),
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json.dumps(host_obj),
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cluster=cluster)
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def lsn_port_dhcp_host_add(cluster, lsn_id, lsn_port_id, host_data):
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_lsn_port_host_action(
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cluster, lsn_id, lsn_port_id, host_data, 'dhcp', 'add_host')
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def lsn_port_dhcp_host_remove(cluster, lsn_id, lsn_port_id, host_data):
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_lsn_port_host_action(
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cluster, lsn_id, lsn_port_id, host_data, 'dhcp', 'remove_host')
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def lsn_port_metadata_host_add(cluster, lsn_id, lsn_port_id, host_data):
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_lsn_port_host_action(
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cluster, lsn_id, lsn_port_id, host_data, 'metadata-proxy', 'add_host')
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def lsn_port_metadata_host_remove(cluster, lsn_id, lsn_port_id, host_data):
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_lsn_port_host_action(cluster, lsn_id, lsn_port_id,
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host_data, 'metadata-proxy', 'remove_host')
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