x/vmware-nsx
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ba43260108
vmware-nsx/quantum/plugins/nicira/nicira_nvp_plugin/nvplib.py
Salvatore Orlando 268d39c230 L3 API support for nicira plugin 
blueprint nvp-l3-api

This patch adds supports the Quantum L3 API extension to the nicira NVP
Quantum Plugin.

The patch includes code for managing Quantum routers, router interfaces,
external gateways, and floating IPs, and for applying the relevant
configurations on the NVP controller using the NVP API.

The patch also includes NVP-specific support for access to the nova
metadata server via injection of a host route in VM instances.

Change-Id: I20b45190f1eaca0229d30871b25484b90298a18b
2013-02-11 05:19:04 -08:00

1116 lines
44 KiB
Python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 Nicira Networks, 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.
#
# @author: Brad Hall, Nicira Networks, Inc.
# @author: Dave Lapsley, Nicira Networks, Inc.
# @author: Aaron Rosen, Nicira Networks, Inc.
from copy import copy
import hashlib
import json
import logging
#FIXME(danwent): I'd like this file to get to the point where it has
# no quantum-specific logic in it
from quantum.common import constants
from quantum.common import exceptions as exception
from quantum.plugins.nicira.nicira_nvp_plugin.common import (
exceptions as nvp_exc)
from quantum.plugins.nicira.nicira_nvp_plugin import NvpApiClient
# HTTP METHODS CONSTANTS
HTTP_GET = "GET"
HTTP_POST = "POST"
# Default transport type for logical switches
DEF_TRANSPORT_TYPE = "stt"
# Prefix to be used for all NVP API calls
URI_PREFIX = "/ws.v1"
# Resources exposed by NVP API
LSWITCH_RESOURCE = "lswitch"
LSWITCHPORT_RESOURCE = "lport-%s" % LSWITCH_RESOURCE
LROUTER_RESOURCE = "lrouter"
LROUTERPORT_RESOURCE = "lport-%s" % LROUTER_RESOURCE
LROUTERNAT_RESOURCE = "nat-lrouter"
# Constants for NAT rules
MATCH_KEYS = ["destination_ip_addresses", "destination_port_max",
"destination_port_min", "source_ip_addresses",
"source_port_max", "source_port_min", "protocol"]
SNAT_KEYS = ["to_src_port_min", "to_src_port_max", "to_src_ip_min",
"to_src_ip_max"]
DNAT_KEYS = ["to_dst_port", "to_dst_ip_min", "to_dst_ip_max"]
LOCAL_LOGGING = False
if LOCAL_LOGGING:
from logging.handlers import SysLogHandler
FORMAT = ("|%(levelname)s|%(filename)s|%(funcName)s|%(lineno)s"
"|%(message)s")
LOG = logging.getLogger(__name__)
formatter = logging.Formatter(FORMAT)
syslog = SysLogHandler(address="/dev/log")
syslog.setFormatter(formatter)
LOG.addHandler(syslog)
LOG.setLevel(logging.DEBUG)
else:
LOG = logging.getLogger(__name__)
LOG.setLevel(logging.DEBUG)
# TODO(bgh): it would be more efficient to use a bitmap
taken_context_ids = []
_net_type_cache = {} # cache of {net_id: network_type}
# XXX Only cache default for now
_lqueue_cache = {}
def _build_uri_path(resource,
resource_id=None,
parent_resource_id=None,
fields=None,
relations=None, filters=None, is_attachment=False):
resources = resource.split('-')
res_path = resources[0] + (resource_id and "/%s" % resource_id or '')
if len(resources) > 1:
# There is also a parent resource to account for in the uri
res_path = "%s/%s/%s" % (resources[1],
parent_resource_id,
res_path)
if is_attachment:
res_path = "%s/attachment" % res_path
params = []
params.append(fields and "fields=%s" % fields)
params.append(relations and "relations=%s" % relations)
if filters:
params.extend(['%s=%s' % (k, v) for (k, v) in filters.iteritems()])
uri_path = "%s/%s" % (URI_PREFIX, res_path)
non_empty_params = [x for x in params if x is not None]
if len(non_empty_params):
query_string = '&'.join(non_empty_params)
if query_string:
uri_path += "?%s" % query_string
return uri_path
def get_cluster_version(cluster):
"""Return major/minor version #"""
# Get control-cluster nodes
uri = "/ws.v1/control-cluster/node?_page_length=1&fields=uuid"
try:
res = do_single_request(HTTP_GET, uri, cluster=cluster)
res = json.loads(res)
except NvpApiClient.NvpApiException:
raise exception.QuantumException()
if res["result_count"] == 0:
return None
node_uuid = res["results"][0]["uuid"]
# Get control-cluster node status. It's unsupported to have controllers
# running different version so we just need the first node version.
uri = "/ws.v1/control-cluster/node/%s/status" % node_uuid
try:
res = do_single_request(HTTP_GET, uri, cluster=cluster)
res = json.loads(res)
except NvpApiClient.NvpApiException:
raise exception.QuantumException()
version_parts = res["version"].split(".")
version = "%s.%s" % tuple(version_parts[:2])
LOG.info(_("NVP controller cluster version: %s"), version)
return version
def get_all_query_pages(path, c):
need_more_results = True
result_list = []
page_cursor = None
query_marker = "&" if (path.find("?") != -1) else "?"
while need_more_results:
page_cursor_str = (
"_page_cursor=%s" % page_cursor if page_cursor else "")
res = do_single_request(HTTP_GET, "%s%s%s" %
(path, query_marker, page_cursor_str),
cluster=c)
body = json.loads(res)
page_cursor = body.get('page_cursor')
if not page_cursor:
need_more_results = False
result_list.extend(body['results'])
return result_list
def do_single_request(*args, **kwargs):
"""Issue a request to a specified cluster if specified via kwargs
(cluster=<cluster>)."""
cluster = kwargs["cluster"]
return cluster.api_client.request(*args)
def do_multi_request(*args, **kwargs):
"""Issue a request to all clusters"""
results = []
clusters = kwargs["clusters"]
for x in clusters:
LOG.debug(_("Issuing request to cluster: %s"), x.name)
rv = x.api_client.request(*args)
results.append(rv)
return results
# -------------------------------------------------------------------
# Network functions
# -------------------------------------------------------------------
def find_port_and_cluster(clusters, port_id):
"""Return (url, cluster_id) of port or (None, None) if port does not exist.
"""
for c in clusters:
query = "/ws.v1/lswitch/*/lport?uuid=%s&fields=*" % port_id
LOG.debug(_("Looking for lswitch with port id "
"'%(port_id)s' on: %(c)s"), locals())
try:
res = do_single_request('GET', query, cluster=c)
except Exception as e:
LOG.error(_("get_port_cluster_and_url, exception: %s"), str(e))
continue
res = json.loads(res)
if len(res["results"]) == 1:
return (res["results"][0], c)
return (None, None)
def find_lswitch_by_portid(clusters, port_id):
port, cluster = find_port_and_cluster(clusters, port_id)
if port and cluster:
href = port["_href"].split('/')
return (href[3], cluster)
return (None, None)
def get_lswitches(cluster, quantum_net_id):
lswitch_uri_path = _build_uri_path(LSWITCH_RESOURCE, quantum_net_id,
relations="LogicalSwitchStatus")
results = []
try:
resp_obj = do_single_request(HTTP_GET,
lswitch_uri_path,
cluster=cluster)
ls = json.loads(resp_obj)
results.append(ls)
for tag in ls['tags']:
if (tag['scope'] == "multi_lswitch" and
tag['tag'] == "True"):
# Fetch extra logical switches
extra_lswitch_uri_path = _build_uri_path(
LSWITCH_RESOURCE,
fields="uuid,display_name,tags,lport_count",
relations="LogicalSwitchStatus",
filters={'tag': quantum_net_id,
'tag_scope': 'quantum_net_id'})
extra_switches = get_all_query_pages(extra_lswitch_uri_path,
cluster)
results.extend(extra_switches)
return results
except NvpApiClient.NvpApiException:
# TODO(salvatore-olrando): Do a better exception handling
# and re-raising
LOG.exception(_("An error occured while fetching logical switches "
"for Quantum network %s"), quantum_net_id)
raise exception.QuantumException()
def create_lswitch(cluster, tenant_id, display_name,
transport_type=None,
transport_zone_uuid=None,
vlan_id=None,
quantum_net_id=None,
**kwargs):
nvp_binding_type = transport_type
if transport_type in ('flat', 'vlan'):
nvp_binding_type = 'bridge'
transport_zone_config = {"zone_uuid": (transport_zone_uuid or
cluster.default_tz_uuid),
"transport_type": (nvp_binding_type or
DEF_TRANSPORT_TYPE)}
lswitch_obj = {"display_name": display_name,
"transport_zones": [transport_zone_config],
"tags": [{"tag": tenant_id, "scope": "os_tid"}]}
if nvp_binding_type == 'bridge' and vlan_id:
transport_zone_config["binding_config"] = {"vlan_translation":
[{"transport": vlan_id}]}
if quantum_net_id:
lswitch_obj["tags"].append({"tag": quantum_net_id,
"scope": "quantum_net_id"})
if "tags" in kwargs:
lswitch_obj["tags"].extend(kwargs["tags"])
uri = _build_uri_path(LSWITCH_RESOURCE)
try:
lswitch_res = do_single_request(HTTP_POST, uri,
json.dumps(lswitch_obj),
cluster=cluster)
except NvpApiClient.NvpApiException:
raise exception.QuantumException()
lswitch = json.loads(lswitch_res)
LOG.debug(_("Created logical switch: %s"), lswitch['uuid'])
return lswitch
def update_lswitch(cluster, lswitch_id, display_name,
tenant_id=None, **kwargs):
uri = _build_uri_path(LSWITCH_RESOURCE, resource_id=lswitch_id)
# TODO(salvatore-orlando): Make sure this operation does not remove
# any other important tag set on the lswtich object
lswitch_obj = {"display_name": display_name,
"tags": [{"tag": tenant_id, "scope": "os_tid"}]}
if "tags" in kwargs:
lswitch_obj["tags"].extend(kwargs["tags"])
try:
resp_obj = do_single_request("PUT", uri, json.dumps(lswitch_obj),
cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Network not found, Error: %s"), str(e))
raise exception.NetworkNotFound(net_id=lswitch_id)
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
obj = json.loads(resp_obj)
return obj
def create_lrouter(cluster, tenant_id, display_name, nexthop):
""" Create a NVP logical router on the specified cluster.
:param cluster: The target NVP cluster
:param tenant_id: Identifier of the Openstack tenant for which
the logical router is being created
:param display_name: Descriptive name of this logical router
:param nexthop: External gateway IP address for the logical router
:raise NvpApiException: if there is a problem while communicating
with the NVP controller
"""
tags = [{"tag": tenant_id, "scope": "os_tid"}]
lrouter_obj = {
"display_name": display_name,
"tags": tags,
"routing_config": {
"default_route_next_hop": {
"gateway_ip_address": nexthop,
"type": "RouterNextHop"
},
"type": "SingleDefaultRouteImplicitRoutingConfig"
},
"type": "LogicalRouterConfig"
}
try:
return json.loads(do_single_request("POST",
_build_uri_path(LROUTER_RESOURCE),
json.dumps(lrouter_obj),
cluster=cluster))
except NvpApiClient.NvpApiException:
# just log and re-raise - let the caller handle it
LOG.exception(_("An exception occured while communicating with "
"the NVP controller for cluster:%s"), cluster.name)
raise
def delete_lrouter(cluster, lrouter_id):
try:
do_single_request("DELETE",
_build_uri_path(LROUTER_RESOURCE,
resource_id=lrouter_id),
cluster=cluster)
except NvpApiClient.NvpApiException:
# just log and re-raise - let the caller handle it
LOG.exception(_("An exception occured while communicating with "
"the NVP controller for cluster:%s"), cluster.name)
raise
def get_lrouter(cluster, lrouter_id):
try:
return json.loads(do_single_request("GET",
_build_uri_path(LROUTER_RESOURCE,
resource_id=lrouter_id,
relations='LogicalRouterStatus'),
cluster=cluster))
except NvpApiClient.NvpApiException:
# just log and re-raise - let the caller handle it
LOG.exception(_("An exception occured while communicating with "
"the NVP controller for cluster:%s"), cluster.name)
raise
def get_lrouters(cluster, tenant_id, fields=None, filters=None):
actual_filters = {}
if filters:
actual_filters.update(filters)
if tenant_id:
actual_filters['tag'] = tenant_id
actual_filters['tag_scope'] = 'os_tid'
lrouter_fields = "uuid,display_name,fabric_status,tags"
return get_all_query_pages(
_build_uri_path(LROUTER_RESOURCE,
fields=lrouter_fields,
relations='LogicalRouterStatus',
filters=actual_filters),
cluster)
def update_lrouter(cluster, lrouter_id, display_name, nexthop):
lrouter_obj = get_lrouter(cluster, lrouter_id)
if not display_name and not nexthop:
# Nothing to update
return lrouter_obj
# It seems that this is faster than the doing an if on display_name
lrouter_obj["display_name"] = display_name or lrouter_obj["display_name"]
if nexthop:
nh_element = lrouter_obj["routing_config"].get(
"default_route_next_hop")
if nh_element:
nh_element["gateway_ip_address"] = nexthop
try:
return json.loads(do_single_request("PUT",
_build_uri_path(LROUTER_RESOURCE,
resource_id=lrouter_id),
json.dumps(lrouter_obj),
cluster=cluster))
except NvpApiClient.NvpApiException:
# just log and re-raise - let the caller handle it
LOG.exception(_("An exception occured while communicating with "
"the NVP controller for cluster:%s"), cluster.name)
raise
def get_all_networks(cluster, tenant_id, networks):
"""Append the quantum network uuids we can find in the given cluster to
"networks"
"""
uri = "/ws.v1/lswitch?fields=*&tag=%s&tag_scope=os_tid" % tenant_id
try:
resp_obj = do_single_request("GET", uri, cluster=cluster)
except NvpApiClient.NvpApiException:
raise exception.QuantumException()
if not resp_obj:
return []
networks_result = copy(networks)
return networks_result
def query_networks(cluster, tenant_id, fields="*", tags=None):
uri = "/ws.v1/lswitch?fields=%s" % fields
if tags:
for t in tags:
uri += "&tag=%s&tag_scope=%s" % (t[0], t[1])
try:
resp_obj = do_single_request("GET", uri, cluster=cluster)
except NvpApiClient.NvpApiException:
raise exception.QuantumException()
if not resp_obj:
return []
lswitches = json.loads(resp_obj)["results"]
nets = [{'net-id': lswitch["uuid"], 'net-name': lswitch["display_name"]}
for lswitch in lswitches]
return nets
def delete_network(cluster, net_id, lswitch_id):
delete_networks(cluster, net_id, [lswitch_id])
def delete_networks(cluster, net_id, lswitch_ids):
if net_id in _net_type_cache:
del _net_type_cache[net_id]
for ls_id in lswitch_ids:
path = "/ws.v1/lswitch/%s" % ls_id
try:
do_single_request("DELETE", path, cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Network not found, Error: %s"), str(e))
raise exception.NetworkNotFound(net_id=ls_id)
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
def query_lswitch_lports(cluster, ls_uuid, fields="*",
filters=None, relations=None):
# Fix filter for attachments
if filters and "attachment" in filters:
filters['attachment_vif_uuid'] = filters["attachment"]
del filters['attachment']
uri = _build_uri_path(LSWITCHPORT_RESOURCE, parent_resource_id=ls_uuid,
fields=fields, filters=filters, relations=relations)
try:
resp_obj = do_single_request("GET", uri, cluster=cluster)
except NvpApiClient.ResourceNotFound:
LOG.exception(_("Logical switch: %s not found"), ls_uuid)
raise
except NvpApiClient.NvpApiException:
LOG.exception(_("An error occurred while querying logical ports on "
"the NVP platform"))
raise
return json.loads(resp_obj)["results"]
def query_lrouter_lports(cluster, lr_uuid, fields="*",
filters=None, relations=None):
uri = _build_uri_path(LROUTERPORT_RESOURCE, parent_resource_id=lr_uuid,
fields=fields, filters=filters, relations=relations)
try:
resp_obj = do_single_request("GET", uri, cluster=cluster)
except NvpApiClient.ResourceNotFound:
LOG.exception(_("Logical router: %s not found"), lr_uuid)
raise
except NvpApiClient.NvpApiException:
LOG.exception(_("An error occured while querying logical router "
"ports on the NVP platfom"))
raise
return json.loads(resp_obj)["results"]
def delete_port(cluster, switch, port):
uri = "/ws.v1/lswitch/" + switch + "/lport/" + port
try:
do_single_request("DELETE", uri, cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Port or Network not found, Error: %s"), str(e))
raise exception.PortNotFound(port_id=port['uuid'])
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
def get_logical_port_status(cluster, switch, port):
query = ("/ws.v1/lswitch/" + switch + "/lport/"
+ port + "?relations=LogicalPortStatus")
try:
res_obj = do_single_request('GET', query, cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Port or Network not found, Error: %s"), str(e))
raise exception.PortNotFound(port_id=port, net_id=switch)
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
res = json.loads(res_obj)
# copy over admin_status_enabled
res["_relations"]["LogicalPortStatus"]["admin_status_enabled"] = (
res["admin_status_enabled"])
return res["_relations"]["LogicalPortStatus"]
def get_port_by_display_name(clusters, lswitch, display_name):
"""Return (url, cluster_id) of port or raises ResourceNotFound
"""
query = ("/ws.v1/lswitch/%s/lport?display_name=%s&fields=*" %
(lswitch, display_name))
LOG.debug(_("Looking for port with display_name "
"'%(display_name)s' on: %(lswitch)s"), locals())
for c in clusters:
try:
res_obj = do_single_request('GET', query, cluster=c)
except Exception as e:
continue
res = json.loads(res_obj)
if len(res["results"]) == 1:
return (res["results"][0], c)
LOG.error(_("Port or Network not found, Error: %s"), str(e))
raise exception.PortNotFound(port_id=display_name, net_id=lswitch)
def get_port(cluster, network, port, relations=None):
LOG.info(_("get_port() %(network)s %(port)s"), locals())
uri = "/ws.v1/lswitch/" + network + "/lport/" + port + "?"
if relations:
uri += "relations=%s" % relations
try:
resp_obj = do_single_request("GET", uri, cluster=cluster)
port = json.loads(resp_obj)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Port or Network not found, Error: %s"), str(e))
raise exception.PortNotFound(port_id=port, net_id=network)
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
return port
def _configure_extensions(lport_obj, mac_address, fixed_ips,
port_security_enabled, security_profiles):
lport_obj['allowed_address_pairs'] = []
if port_security_enabled:
for fixed_ip in fixed_ips:
ip_address = fixed_ip.get('ip_address')
if ip_address:
lport_obj['allowed_address_pairs'].append(
{'mac_address': mac_address, 'ip_address': ip_address})
# add address pair allowing src_ip 0.0.0.0 to leave
# this is required for outgoing dhcp request
lport_obj["allowed_address_pairs"].append(
{"mac_address": mac_address,
"ip_address": "0.0.0.0"})
lport_obj['security_profiles'] = list(security_profiles or [])
def update_port(cluster, lswitch_uuid, lport_uuid, quantum_port_id, tenant_id,
display_name, device_id, admin_status_enabled,
mac_address=None, fixed_ips=None, port_security_enabled=None,
security_profiles=None):
# device_id can be longer than 40 so we rehash it
hashed_device_id = hashlib.sha1(device_id).hexdigest()
lport_obj = dict(
admin_status_enabled=admin_status_enabled,
display_name=display_name,
tags=[dict(scope='os_tid', tag=tenant_id),
dict(scope='q_port_id', tag=quantum_port_id),
dict(scope='vm_id', tag=hashed_device_id)])
_configure_extensions(lport_obj, mac_address, fixed_ips,
port_security_enabled, security_profiles)
path = "/ws.v1/lswitch/" + lswitch_uuid + "/lport/" + lport_uuid
try:
resp_obj = do_single_request("PUT", path, json.dumps(lport_obj),
cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Port or Network not found, Error: %s"), str(e))
raise exception.PortNotFound(port_id=lport_uuid, net_id=lswitch_uuid)
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
result = json.loads(resp_obj)
LOG.debug(_("Updated logical port %(result)s on logical swtich %(uuid)s"),
{'result': result['uuid'], 'uuid': lswitch_uuid})
return result
def create_lport(cluster, lswitch_uuid, tenant_id, quantum_port_id,
display_name, device_id, admin_status_enabled,
mac_address=None, fixed_ips=None, port_security_enabled=None,
security_profiles=None):
""" Creates a logical port on the assigned logical switch """
# device_id can be longer than 40 so we rehash it
hashed_device_id = hashlib.sha1(device_id).hexdigest()
lport_obj = dict(
admin_status_enabled=admin_status_enabled,
display_name=display_name,
tags=[dict(scope='os_tid', tag=tenant_id),
dict(scope='q_port_id', tag=quantum_port_id),
dict(scope='vm_id', tag=hashed_device_id)],
)
_configure_extensions(lport_obj, mac_address, fixed_ips,
port_security_enabled, security_profiles)
path = _build_uri_path(LSWITCHPORT_RESOURCE,
parent_resource_id=lswitch_uuid)
try:
resp_obj = do_single_request("POST", path,
json.dumps(lport_obj),
cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Logical switch not found, Error: %s"), str(e))
raise
result = json.loads(resp_obj)
LOG.debug(_("Created logical port %(result)s on logical swtich %(uuid)s"),
{'result': result['uuid'], 'uuid': lswitch_uuid})
return result
def create_router_lport(cluster, lrouter_uuid, tenant_id, quantum_port_id,
display_name, admin_status_enabled, ip_addresses):
""" Creates a logical port on the assigned logical router """
tags = [dict(scope='os_tid', tag=tenant_id),
dict(scope='q_port_id', tag=quantum_port_id)]
lport_obj = dict(
admin_status_enabled=admin_status_enabled,
display_name=display_name,
tags=tags,
ip_addresses=ip_addresses,
type="LogicalRouterPortConfig"
)
path = _build_uri_path(LROUTERPORT_RESOURCE,
parent_resource_id=lrouter_uuid)
try:
resp_obj = do_single_request("POST", path,
json.dumps(lport_obj),
cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Logical router not found, Error: %s"), str(e))
raise
result = json.loads(resp_obj)
LOG.debug(_("Created logical port %(lport_uuid)s on "
"logical router %(lrouter_uuid)s"),
{'lport_uuid': result['uuid'],
'lrouter_uuid': lrouter_uuid})
return result
def update_router_lport(cluster, lrouter_uuid, lrouter_port_uuid,
tenant_id, quantum_port_id, display_name,
admin_status_enabled, ip_addresses):
""" Updates a logical port on the assigned logical router """
lport_obj = dict(
admin_status_enabled=admin_status_enabled,
display_name=display_name,
tags=[dict(scope='os_tid', tag=tenant_id),
dict(scope='q_port_id', tag=quantum_port_id)],
ip_addresses=ip_addresses,
type="LogicalRouterPortConfig"
)
# Do not pass null items to NVP
for key in lport_obj.keys():
if lport_obj[key] is None:
del lport_obj[key]
path = _build_uri_path(LROUTERPORT_RESOURCE,
lrouter_port_uuid,
parent_resource_id=lrouter_uuid)
try:
resp_obj = do_single_request("PUT", path,
json.dumps(lport_obj),
cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Logical router or router port not found, "
"Error: %s"), str(e))
raise
result = json.loads(resp_obj)
LOG.debug(_("Updated logical port %(lport_uuid)s on "
"logical router %(lrouter_uuid)s"),
{'lport_uuid': lrouter_port_uuid, 'lrouter_uuid': lrouter_uuid})
return result
def delete_router_lport(cluster, lrouter_uuid, lport_uuid):
""" Creates a logical port on the assigned logical router """
path = _build_uri_path(LROUTERPORT_RESOURCE, lport_uuid, lrouter_uuid)
try:
do_single_request("DELETE", path, cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Logical router not found, Error: %s"), str(e))
raise
LOG.debug(_("Delete logical router port %(lport_uuid)s on "
"logical router %(lrouter_uuid)s"),
{'lport_uuid': lport_uuid,
'lrouter_uuid': lrouter_uuid})
def delete_peer_router_lport(cluster, lr_uuid, ls_uuid, lp_uuid):
nvp_port = get_port(cluster, ls_uuid, lp_uuid,
relations="LogicalPortAttachment")
try:
relations = nvp_port.get('_relations')
if relations:
att_data = relations.get('LogicalPortAttachment')
if att_data:
lrp_uuid = att_data.get('peer_port_uuid')
if lrp_uuid:
delete_router_lport(cluster, lr_uuid, lrp_uuid)
except (NvpApiClient.NvpApiException, NvpApiClient.ResourceNotFound):
LOG.exception(_("Unable to fetch and delete peer logical "
"router port for logical switch port:%s"),
lp_uuid)
raise
def find_router_gw_port(context, cluster, router_id):
""" Retrieves the external gateway port for a NVP logical router """
# Find the uuid of nvp ext gw logical router port
# TODO(salvatore-orlando): Consider storing it in Quantum DB
results = query_lrouter_lports(
cluster, router_id,
filters={'attachment_gwsvc_uuid': cluster.default_l3_gw_service_uuid})
if len(results):
# Return logical router port
return results[0]
def plug_router_port_attachment(cluster, router_id, port_id,
attachment_uuid, nvp_attachment_type):
"""Attach a router port to the given attachment.
Current attachment types:
- PatchAttachment [-> logical switch port uuid]
- L3GatewayAttachment [-> L3GatewayService uuid]
"""
uri = _build_uri_path(LROUTERPORT_RESOURCE, port_id, router_id,
is_attachment=True)
attach_obj = {}
attach_obj["type"] = nvp_attachment_type
if nvp_attachment_type == "PatchAttachment":
attach_obj["peer_port_uuid"] = attachment_uuid
elif nvp_attachment_type == "L3GatewayAttachment":
attach_obj["l3_gateway_service_uuid"] = attachment_uuid
else:
raise Exception(_("Invalid NVP attachment type '%s'"),
nvp_attachment_type)
try:
resp_obj = do_single_request(
"PUT", uri, json.dumps(attach_obj), cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.exception(_("Router Port not found, Error: %s"), str(e))
raise
except NvpApiClient.Conflict as e:
LOG.exception(_("Conflict while setting router port attachment"))
raise
except NvpApiClient.NvpApiException as e:
LOG.exception(_("Unable to plug attachment into logical router port"))
raise
result = json.loads(resp_obj)
return result
def get_port_status(cluster, lswitch_id, port_id):
"""Retrieve the operational status of the port"""
try:
r = do_single_request("GET",
"/ws.v1/lswitch/%s/lport/%s/status" %
(lswitch_id, port_id), cluster=cluster)
r = json.loads(r)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Port not found, Error: %s"), str(e))
raise exception.PortNotFound(port_id=port_id, net_id=lswitch_id)
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
if r['link_status_up'] is True:
return constants.PORT_STATUS_ACTIVE
else:
return constants.PORT_STATUS_DOWN
def plug_interface(cluster, lswitch_id, port, type, attachment=None):
uri = "/ws.v1/lswitch/" + lswitch_id + "/lport/" + port + "/attachment"
lport_obj = {}
if attachment:
lport_obj["vif_uuid"] = attachment
lport_obj["type"] = type
try:
resp_obj = do_single_request("PUT", uri, json.dumps(lport_obj),
cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
LOG.error(_("Port or Network not found, Error: %s"), str(e))
raise exception.PortNotFound(port_id=port, net_id=lswitch_id)
except NvpApiClient.Conflict as e:
LOG.error(_("Conflict while making attachment to port, "
"Error: %s"), str(e))
raise exception.AlreadyAttached(att_id=attachment,
port_id=port,
net_id=lswitch_id,
att_port_id="UNKNOWN")
except NvpApiClient.NvpApiException as e:
raise exception.QuantumException()
result = json.dumps(resp_obj)
return result
#------------------------------------------------------------------------------
# Security Profile convenience functions.
#------------------------------------------------------------------------------
EXT_SECURITY_PROFILE_ID_SCOPE = 'nova_spid'
TENANT_ID_SCOPE = 'os_tid'
def format_exception(etype, e, execption_locals, request=None):
"""Consistent formatting for exceptions.
:param etype: a string describing the exception type.
:param e: the exception.
:param request: the request object.
:param execption_locals: calling context local variable dict.
:returns: a formatted string.
"""
msg = ["Error. %s exception: %s." % (etype, e)]
if request:
msg.append("request=[%s]" % request)
if request.body:
msg.append("request.body=[%s]" % str(request.body))
l = dict((k, v) for k, v in execption_locals if k != 'request')
msg.append("locals=[%s]" % str(l))
return ' '.join(msg)
def do_request(*args, **kwargs):
"""Convenience function wraps do_single_request.
:param args: a list of positional arguments.
:param kwargs: a list of keyworkds arguments.
:returns: the result of do_single_request loaded into a python object
or None."""
res = do_single_request(*args, **kwargs)
if res:
return json.loads(res)
return res
def mk_body(**kwargs):
"""Convenience function creates and dumps dictionary to string.
:param kwargs: the key/value pirs to be dumped into a json string.
:returns: a json string."""
return json.dumps(kwargs, ensure_ascii=False)
def set_tenant_id_tag(tenant_id, taglist=None):
"""Convenience function to add tenant_id tag to taglist.
:param tenant_id: the tenant_id to set.
:param taglist: the taglist to append to (or None).
:returns: a new taglist that includes the old taglist with the new
tenant_id tag set."""
new_taglist = []
if taglist:
new_taglist = [x for x in taglist if x['scope'] != TENANT_ID_SCOPE]
new_taglist.append(dict(scope=TENANT_ID_SCOPE, tag=tenant_id))
return new_taglist
def set_ext_security_profile_id_tag(external_id, taglist=None):
"""Convenience function to add spid tag to taglist.
:param external_id: the security_profile id from nova
:param taglist: the taglist to append to (or None).
:returns: a new taglist that includes the old taglist with the new
spid tag set."""
new_taglist = []
if taglist:
new_taglist = [x for x in taglist if x['scope'] !=
EXT_SECURITY_PROFILE_ID_SCOPE]
if external_id:
new_taglist.append(dict(scope=EXT_SECURITY_PROFILE_ID_SCOPE,
tag=str(external_id)))
return new_taglist
# -----------------------------------------------------------------------------
# Security Group API Calls
# -----------------------------------------------------------------------------
def create_security_profile(cluster, tenant_id, security_profile):
path = "/ws.v1/security-profile"
tags = set_tenant_id_tag(tenant_id)
tags = set_ext_security_profile_id_tag(
security_profile.get('external_id'), tags)
# Allow all dhcp responses in
dhcp = {'logical_port_egress_rules': [{'ethertype': 'IPv4',
'protocol': 17,
'port_range_min': 68,
'port_range_max': 68,
'ip_prefix': '0.0.0.0/0'}],
'logical_port_ingress_rules': []}
try:
body = mk_body(
tags=tags, display_name=security_profile.get('name'),
logical_port_ingress_rules=dhcp['logical_port_ingress_rules'],
logical_port_egress_rules=dhcp['logical_port_egress_rules'])
rsp = do_request("POST", path, body, cluster=cluster)
except NvpApiClient.NvpApiException as e:
LOG.error(format_exception("Unknown", e, locals()))
raise exception.QuantumException()
if security_profile.get('name') == 'default':
# If security group is default allow ip traffic between
# members of the same security profile.
rules = {'logical_port_egress_rules': [{'ethertype': 'IPv4',
'profile_uuid': rsp['uuid']},
{'ethertype': 'IPv6',
'profile_uuid': rsp['uuid']}],
'logical_port_ingress_rules': []}
update_security_group_rules(cluster, rsp['uuid'], rules)
LOG.debug(_("Created Security Profile: %s"), rsp)
return rsp
def update_security_group_rules(cluster, spid, rules):
path = "/ws.v1/security-profile/%s" % spid
# Allow all dhcp responses in
rules['logical_port_egress_rules'].append(
{'ethertype': 'IPv4', 'protocol': constants.UDP_PROTOCOL,
'port_range_min': constants.DHCP_RESPONSE_PORT,
'port_range_max': constants.DHCP_RESPONSE_PORT,
'ip_prefix': '0.0.0.0/0'})
try:
body = mk_body(
logical_port_ingress_rules=rules['logical_port_ingress_rules'],
logical_port_egress_rules=rules['logical_port_egress_rules'])
rsp = do_request("PUT", path, body, cluster=cluster)
except NvpApiClient.NvpApiException as e:
LOG.error(format_exception("Unknown", e, locals()))
raise exception.QuantumException()
LOG.debug(_("Updated Security Profile: %s"), rsp)
return rsp
def delete_security_profile(cluster, spid):
path = "/ws.v1/security-profile/%s" % spid
try:
do_request("DELETE", path, cluster=cluster)
except NvpApiClient.NvpApiException as e:
LOG.error(format_exception("Unknown", e, locals()))
raise exception.QuantumException()
def _create_nat_match_obj(**kwargs):
nat_match_obj = {'ethertype': 'IPv4'}
delta = set(kwargs.keys()) - set(MATCH_KEYS)
if delta:
raise Exception(_("Invalid keys for NAT match: %s"), delta)
nat_match_obj.update(kwargs)
return nat_match_obj
def _create_lrouter_nat_rule(cluster, router_id, nat_rule_obj):
LOG.debug(_("Creating NAT rule: %s"), nat_rule_obj)
uri = _build_uri_path(LROUTERNAT_RESOURCE, parent_resource_id=router_id)
try:
resp = do_single_request("POST", uri, json.dumps(nat_rule_obj),
cluster=cluster)
except NvpApiClient.ResourceNotFound:
LOG.exception(_("NVP Logical Router %s not found"), router_id)
raise
except NvpApiClient.NvpApiException:
LOG.exception(_("An error occurred while creating the NAT rule "
"on the NVP platform"))
raise
rule = json.loads(resp)
return rule
def create_lrouter_snat_rule(cluster, router_id,
min_src_ip, max_src_ip, **kwargs):
nat_match_obj = _create_nat_match_obj(**kwargs)
nat_rule_obj = {
"to_source_ip_address_min": min_src_ip,
"to_source_ip_address_max": max_src_ip,
"type": "SourceNatRule",
"match": nat_match_obj
}
return _create_lrouter_nat_rule(cluster, router_id, nat_rule_obj)
def create_lrouter_dnat_rule(cluster, router_id, to_min_dst_ip,
to_max_dst_ip, to_dst_port=None, **kwargs):
nat_match_obj = _create_nat_match_obj(**kwargs)
nat_rule_obj = {
"to_destination_ip_address_min": to_min_dst_ip,
"to_destination_ip_address_max": to_max_dst_ip,
"type": "DestinationNatRule",
"match": nat_match_obj
}
if to_dst_port:
nat_rule_obj['to_destination_port'] = to_dst_port
return _create_lrouter_nat_rule(cluster, router_id, nat_rule_obj)
def delete_nat_rules_by_match(cluster, router_id, rule_type,
max_num_expected,
min_num_expected=0,
**kwargs):
# remove nat rules
nat_rules = query_nat_rules(cluster, router_id)
to_delete_ids = []
for r in nat_rules:
if (r['type'] != rule_type):
continue
for key, value in kwargs.iteritems():
if not (key in r['match'] and r['match'][key] == value):
break
else:
to_delete_ids.append(r['uuid'])
if not (len(to_delete_ids) in
range(min_num_expected, max_num_expected + 1)):
raise nvp_exc.NvpNatRuleMismatch(actual_rules=len(to_delete_ids),
min_rules=min_num_expected,
max_rules=max_num_expected)
for rule_id in to_delete_ids:
delete_router_nat_rule(cluster, router_id, rule_id)
def delete_router_nat_rule(cluster, router_id, rule_id):
uri = _build_uri_path(LROUTERNAT_RESOURCE, rule_id, router_id)
try:
do_single_request("DELETE", uri, cluster=cluster)
except NvpApiClient.NvpApiException:
LOG.exception(_("An error occurred while removing NAT rule "
"'%(nat_rule_uuid)s' for logical "
"router '%(lrouter_uuid)s'"),
{'nat_rule_uuid': rule_id, 'lrouter_uuid': router_id})
raise
def get_router_nat_rule(cluster, tenant_id, router_id, rule_id):
uri = _build_uri_path(LROUTERNAT_RESOURCE, rule_id, router_id)
try:
resp = do_single_request("GET", uri, cluster=cluster)
except NvpApiClient.ResourceNotFound:
LOG.exception(_("NAT rule %s not found"), rule_id)
raise
except NvpApiClient.NvpApiException:
LOG.exception(_("An error occured while retrieving NAT rule '%s'"
"from NVP platform"), rule_id)
raise
res = json.loads(resp)
return res
def query_nat_rules(cluster, router_id, fields="*", filters=None):
uri = _build_uri_path(LROUTERNAT_RESOURCE, parent_resource_id=router_id,
fields=fields, filters=filters)
try:
resp = do_single_request("GET", uri, cluster=cluster)
except NvpApiClient.ResourceNotFound:
LOG.exception(_("NVP Logical Router '%s' not found"), router_id)
raise
except NvpApiClient.NvpApiException:
LOG.exception(_("An error occured while retrieving NAT rules for "
"NVP logical router '%s'"), router_id)
raise
res = json.loads(resp)
return res["results"]
# NOTE(salvatore-orlando): The following FIXME applies in general to
# each operation on list attributes.
# FIXME(salvatore-orlando): need a lock around the list of IPs on an iface
def update_lrouter_port_ips(cluster, lrouter_id, lport_id,
ips_to_add, ips_to_remove):
uri = _build_uri_path(LROUTERPORT_RESOURCE, lport_id, lrouter_id)
try:
port = json.loads(do_single_request("GET", uri, cluster=cluster))
# TODO(salvatore-orlando): Enforce ips_to_add intersection with
# ips_to_remove is empty
ip_address_set = set(port['ip_addresses'])
ip_address_set = ip_address_set - set(ips_to_remove)
ip_address_set = ip_address_set | set(ips_to_add)
# Set is not JSON serializable - convert to list
port['ip_addresses'] = list(ip_address_set)
do_single_request("PUT", uri, json.dumps(port), cluster=cluster)
except NvpApiClient.ResourceNotFound as e:
msg = (_("Router Port %(lport_id)s not found on router "
"%(lrouter_id)s") % locals())
LOG.exception(msg)
raise nvp_exc.NvpPluginException(err_desc=msg)
except NvpApiClient.NvpApiException as e:
msg = _("An exception occurred while updating IP addresses on a "
"router logical port:%s") % str(e)
LOG.exception(msg)
raise nvp_exc.NvpPluginException(err_desc=msg)
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