264 lines
11 KiB
Python
264 lines
11 KiB
Python
# Copyright 2019 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 functools
|
|
|
|
from neutron_lib import exceptions as n_exc
|
|
from oslo_log import helpers as log_helpers
|
|
from oslo_log import log as logging
|
|
|
|
from vmware_nsx._i18n import _
|
|
from vmware_nsx.services.lbaas import lb_const
|
|
from vmware_nsx.services.lbaas.nsx_p.implementation import lb_const as p_const
|
|
from vmware_nsx.services.lbaas.nsx_v3.implementation import lb_utils
|
|
from vmware_nsxlib.v3 import load_balancer as nsxlib_lb
|
|
from vmware_nsxlib.v3.policy import constants as p_constants
|
|
from vmware_nsxlib.v3.policy import utils as p_utils
|
|
from vmware_nsxlib.v3 import utils
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
ADV_RULE_NAME = 'LB external VIP advertisement'
|
|
|
|
|
|
@log_helpers.log_method_call
|
|
def get_rule_match_conditions(policy):
|
|
match_conditions = []
|
|
# values in rule have already been validated in LBaaS API,
|
|
# we won't need to valid anymore in driver, and just get
|
|
# the LB rule mapping from the dict.
|
|
for rule in policy['rules']:
|
|
match_type = lb_const.LB_RULE_MATCH_TYPE[rule['compare_type']]
|
|
if rule['type'] == lb_const.L7_RULE_TYPE_COOKIE:
|
|
header_value = rule['key'] + '=' + rule['value']
|
|
match_conditions.append(
|
|
{'type': 'LBHttpRequestHeaderCondition',
|
|
'match_type': match_type,
|
|
'header_name': 'Cookie',
|
|
'header_value': header_value})
|
|
elif rule['type'] == lb_const.L7_RULE_TYPE_FILE_TYPE:
|
|
match_conditions.append(
|
|
{'type': 'LBHttpRequestUriCondition',
|
|
'match_type': match_type,
|
|
'uri': '*.' + rule['value']})
|
|
elif rule['type'] == lb_const.L7_RULE_TYPE_HEADER:
|
|
match_conditions.append(
|
|
{'type': 'LBHttpRequestHeaderCondition',
|
|
'match_type': match_type,
|
|
'header_name': rule['key'],
|
|
'header_value': rule['value']})
|
|
elif rule['type'] == lb_const.L7_RULE_TYPE_HOST_NAME:
|
|
match_conditions.append(
|
|
{'type': 'LBHttpRequestHeaderCondition',
|
|
'match_type': match_type,
|
|
'header_name': 'Host',
|
|
'header_value': rule['value']})
|
|
elif rule['type'] == lb_const.L7_RULE_TYPE_PATH:
|
|
match_conditions.append(
|
|
{'type': 'LBHttpRequestUriCondition',
|
|
'match_type': match_type,
|
|
'uri': rule['value']})
|
|
else:
|
|
msg = (_('l7rule type %(type)s is not supported in LBaaS') %
|
|
{'type': rule['type']})
|
|
raise n_exc.BadRequest(resource='lbaas-l7rule', msg=msg)
|
|
return match_conditions
|
|
|
|
|
|
@log_helpers.log_method_call
|
|
def get_rule_actions(nsxpolicy, l7policy):
|
|
if l7policy['action'] == lb_const.L7_POLICY_ACTION_REDIRECT_TO_POOL:
|
|
if l7policy['redirect_pool_id']:
|
|
lb_pool_id = l7policy['redirect_pool_id']
|
|
lb_pool_path = nsxpolicy.load_balancer.lb_pool.get_path(lb_pool_id)
|
|
actions = [{'type': p_const.LB_SELECT_POOL_ACTION,
|
|
'pool_id': lb_pool_path}]
|
|
else:
|
|
msg = _('Failed to get LB pool binding from nsx db')
|
|
raise n_exc.BadRequest(resource='lbaas-l7rule-create',
|
|
msg=msg)
|
|
elif l7policy['action'] == lb_const.L7_POLICY_ACTION_REDIRECT_TO_URL:
|
|
actions = [{'type': p_const.LB_HTTP_REDIRECT_ACTION,
|
|
'redirect_status': lb_const.LB_HTTP_REDIRECT_STATUS,
|
|
'redirect_url': l7policy['redirect_url']}]
|
|
elif l7policy['action'] == lb_const.L7_POLICY_ACTION_REJECT:
|
|
actions = [{'type': p_const.LB_REJECT_ACTION,
|
|
'reply_status': lb_const.LB_HTTP_REJECT_STATUS}]
|
|
else:
|
|
msg = (_('Invalid l7policy action: %(action)s') %
|
|
{'action': l7policy['action']})
|
|
raise n_exc.BadRequest(resource='lbaas-l7rule-create',
|
|
msg=msg)
|
|
return actions
|
|
|
|
|
|
@log_helpers.log_method_call
|
|
def convert_l7policy_to_lb_rule(nsxpolicy, policy):
|
|
return {
|
|
'match_conditions': get_rule_match_conditions(policy),
|
|
'actions': get_rule_actions(nsxpolicy, policy),
|
|
'phase': lb_const.LB_RULE_HTTP_FORWARDING,
|
|
'match_strategy': 'ALL'
|
|
}
|
|
|
|
|
|
@log_helpers.log_method_call
|
|
def remove_rule_from_policy(rule):
|
|
l7rules = rule['policy']['rules']
|
|
rule['policy']['rules'] = [r for r in l7rules if r['id'] != rule['id']]
|
|
|
|
|
|
@log_helpers.log_method_call
|
|
def update_rule_in_policy(rule):
|
|
remove_rule_from_policy(rule)
|
|
rule['policy']['rules'].append(rule)
|
|
|
|
|
|
@log_helpers.log_method_call
|
|
def update_router_lb_vip_advertisement(context, core_plugin, router_id):
|
|
router = core_plugin.get_router(context.elevated(), router_id)
|
|
|
|
# Add a rule to advertise external vips on the router
|
|
external_subnets = core_plugin._find_router_gw_subnets(
|
|
context.elevated(), router)
|
|
external_cidrs = [s['cidr'] for s in external_subnets]
|
|
if external_cidrs:
|
|
core_plugin.nsxpolicy.tier1.add_advertisement_rule(
|
|
router_id,
|
|
ADV_RULE_NAME,
|
|
p_constants.ADV_RULE_PERMIT,
|
|
p_constants.ADV_RULE_OPERATOR_GE,
|
|
[p_constants.ADV_RULE_TIER1_LB_VIP],
|
|
external_cidrs)
|
|
|
|
|
|
@log_helpers.log_method_call
|
|
def get_monitor_policy_client(lb_client, hm):
|
|
if hm['type'] == lb_const.LB_HEALTH_MONITOR_TCP:
|
|
return lb_client.lb_monitor_profile_tcp
|
|
elif hm['type'] == lb_const.LB_HEALTH_MONITOR_HTTP:
|
|
return lb_client.lb_monitor_profile_http
|
|
elif hm['type'] == lb_const.LB_HEALTH_MONITOR_HTTPS:
|
|
return lb_client.lb_monitor_profile_https
|
|
elif hm['type'] == lb_const.LB_HEALTH_MONITOR_PING:
|
|
return lb_client.lb_monitor_profile_icmp
|
|
else:
|
|
msg = (_('Cannot create health monitor %(monitor)s with '
|
|
'type %(type)s') % {'monitor': hm['id'],
|
|
'type': hm['type']})
|
|
raise n_exc.InvalidInput(error_message=msg)
|
|
|
|
|
|
def get_tags(plugin, resource_id, resource_type, project_id, project_name):
|
|
return lb_utils.get_tags(plugin, resource_id, resource_type,
|
|
project_id, project_name)
|
|
|
|
|
|
def build_persistence_profile_tags(pool_tags, listener):
|
|
tags = pool_tags[:]
|
|
# With octavia loadbalancer name might not be among data passed
|
|
# down to the driver
|
|
lb_data = listener.get('loadbalancer')
|
|
if lb_data:
|
|
tags.append({
|
|
'scope': lb_const.LB_LB_NAME,
|
|
'tag': lb_data['name'][:utils.MAX_TAG_LEN]})
|
|
tags.append({
|
|
'scope': lb_const.LB_LB_TYPE,
|
|
'tag': listener['loadbalancer_id']})
|
|
tags.append({
|
|
'scope': lb_const.LB_LISTENER_TYPE,
|
|
'tag': listener['id']})
|
|
return tags
|
|
|
|
|
|
def delete_persistence_profile(nsxpolicy, lb_persistence_profile_path):
|
|
lb_client = nsxpolicy.load_balancer
|
|
pp_client = lb_client.lb_persistence_profile
|
|
persistence_profile_id = p_utils.path_to_id(lb_persistence_profile_path)
|
|
if persistence_profile_id:
|
|
pp_client.delete(persistence_profile_id)
|
|
|
|
|
|
def setup_session_persistence(nsxpolicy, pool, pool_tags, listener, vs_data):
|
|
sp = pool.get('session_persistence')
|
|
pers_type = None
|
|
cookie_name = None
|
|
cookie_mode = None
|
|
lb_client = nsxpolicy.load_balancer
|
|
pp_client = None
|
|
if not sp:
|
|
LOG.debug("No session persistence info for pool %s", pool['id'])
|
|
elif sp['type'] == lb_const.LB_SESSION_PERSISTENCE_HTTP_COOKIE:
|
|
pp_client = lb_client.lb_cookie_persistence_profile
|
|
pers_type = nsxlib_lb.PersistenceProfileTypes.COOKIE
|
|
cookie_name = sp.get('cookie_name')
|
|
if not cookie_name:
|
|
cookie_name = lb_const.SESSION_PERSISTENCE_DEFAULT_COOKIE_NAME
|
|
cookie_mode = "INSERT"
|
|
elif sp['type'] == lb_const.LB_SESSION_PERSISTENCE_APP_COOKIE:
|
|
pp_client = lb_client.lb_cookie_persistence_profile
|
|
pers_type = nsxlib_lb.PersistenceProfileTypes.COOKIE
|
|
# In this case cookie name is mandatory
|
|
cookie_name = sp['cookie_name']
|
|
cookie_mode = "REWRITE"
|
|
else:
|
|
pp_client = lb_client.lb_source_ip_persistence_profile
|
|
pers_type = nsxlib_lb.PersistenceProfileTypes.SOURCE_IP
|
|
|
|
if pers_type:
|
|
# There is a profile to create or update
|
|
pp_kwargs = {
|
|
'persistence_profile_id': pool['id'],
|
|
'name': "persistence_%s" % utils.get_name_and_uuid(
|
|
pool['name'] or 'pool', pool['id'], maxlen=235),
|
|
'tags': lb_utils.build_persistence_profile_tags(
|
|
pool_tags, listener)
|
|
}
|
|
if cookie_name:
|
|
pp_kwargs['cookie_name'] = cookie_name
|
|
pp_kwargs['cookie_mode'] = cookie_mode
|
|
|
|
persistence_profile_id = p_utils.path_to_id(
|
|
vs_data.get('lb_persistence_profile_path', ''))
|
|
if persistence_profile_id:
|
|
# NOTE: removal of the persistence profile must be executed
|
|
# after the virtual server has been updated
|
|
if pers_type:
|
|
# Update existing profile
|
|
LOG.debug("Updating persistence profile %(profile_id)s for "
|
|
"listener %(listener_id)s with pool %(pool_id)s",
|
|
{'profile_id': persistence_profile_id,
|
|
'listener_id': listener['id'],
|
|
'pool_id': pool['id']})
|
|
pp_client.update(persistence_profile_id, **pp_kwargs)
|
|
return persistence_profile_id, None
|
|
else:
|
|
# Prepare removal of persistence profile
|
|
profile_path = vs_data.get('lb_persistence_profile_path', '')
|
|
return (None, functools.partial(delete_persistence_profile,
|
|
nsxpolicy, profile_path))
|
|
elif pers_type:
|
|
# Create persistence profile
|
|
pp_id = pool['id']
|
|
pp_kwargs['persistence_profile_id'] = pp_id
|
|
pp_client.create_or_overwrite(**pp_kwargs)
|
|
LOG.debug("Created persistence profile %(profile_id)s for "
|
|
"listener %(listener_id)s with pool %(pool_id)s",
|
|
{'profile_id': pp_id,
|
|
'listener_id': listener['id'],
|
|
'pool_id': pool['id']})
|
|
return pp_id, None
|
|
return None, None
|