824 lines
34 KiB
Python
824 lines
34 KiB
Python
# Copyright (c) 2016 Mirantis, 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 ipaddress
|
|
import random
|
|
import time
|
|
|
|
from openstack import exceptions as os_exc
|
|
from oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
from oslo_utils import timeutils
|
|
from oslo_utils import versionutils
|
|
|
|
from kuryr_kubernetes import clients
|
|
from kuryr_kubernetes import config
|
|
from kuryr_kubernetes import constants as k_const
|
|
from kuryr_kubernetes.controller.drivers import base
|
|
from kuryr_kubernetes.controller.drivers import utils as c_utils
|
|
from kuryr_kubernetes import exceptions as k_exc
|
|
from kuryr_kubernetes.objects import lbaas as obj_lbaas
|
|
from kuryr_kubernetes import utils
|
|
|
|
CONF = cfg.CONF
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
_ACTIVATION_TIMEOUT = CONF.neutron_defaults.lbaas_activation_timeout
|
|
# NOTE(yboaron):Prior to sending create request to Octavia, LBaaS driver
|
|
# verifies that LB is in a stable state by polling LB's provisioning_status
|
|
# using backoff timer.
|
|
# A similar method is used also for the delete flow.
|
|
# Unlike LB creation, rest of octavia operations are completed usually after
|
|
# few seconds. Next constants define the intervals values for 'fast' and
|
|
# 'slow' (will be used for LB creation) polling.
|
|
_LB_STS_POLL_FAST_INTERVAL = 1
|
|
_LB_STS_POLL_SLOW_INTERVAL = 3
|
|
_OCTAVIA_TAGGING_VERSION = 2, 5
|
|
_OCTAVIA_DL_VERSION = 2, 11
|
|
_OCTAVIA_ACL_VERSION = 2, 12
|
|
|
|
|
|
class LBaaSv2Driver(base.LBaaSDriver):
|
|
"""LBaaSv2Driver implements LBaaSDriver for Neutron LBaaSv2 API."""
|
|
|
|
def __init__(self):
|
|
super(LBaaSv2Driver, self).__init__()
|
|
|
|
self._octavia_tags = False
|
|
self._octavia_acls = False
|
|
self._octavia_double_listeners = False
|
|
# Check if Octavia API supports tagging.
|
|
# TODO(dulek): *Maybe* this can be replaced with
|
|
# lbaas.get_api_major_version(version=_OCTAVIA_TAGGING_VERSION)
|
|
# if bug https://storyboard.openstack.org/#!/story/2007040 gets
|
|
# fixed one day.
|
|
v = self.get_octavia_version()
|
|
if v >= _OCTAVIA_ACL_VERSION:
|
|
self._octavia_acls = True
|
|
LOG.info('Octavia supports ACLs for Amphora provider.')
|
|
if v >= _OCTAVIA_DL_VERSION:
|
|
# FIXME(ltomasbo): ovn-octavia driver does not yet support double
|
|
# listeners. Remove when it does, considering the right
|
|
# octavia microversion
|
|
if CONF.kubernetes.endpoints_driver_octavia_provider != 'ovn':
|
|
self._octavia_double_listeners = True
|
|
LOG.info('Octavia supports double listeners (different '
|
|
'protocol, same port) for Amphora provider.')
|
|
if v >= _OCTAVIA_TAGGING_VERSION:
|
|
LOG.info('Octavia supports resource tags.')
|
|
self._octavia_tags = True
|
|
else:
|
|
v_str = '%d.%d' % v
|
|
LOG.warning('[neutron_defaults]resource_tags is set, but Octavia '
|
|
'API %s does not support resource tagging. Kuryr '
|
|
'will put requested tags in the description field of '
|
|
'Octavia resources.', v_str)
|
|
|
|
def double_listeners_supported(self):
|
|
return self._octavia_double_listeners
|
|
|
|
def get_octavia_version(self):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
region_name = getattr(CONF.neutron, 'region_name', None)
|
|
|
|
regions = lbaas.get_all_version_data()
|
|
# If region was specified take it, otherwise just take first as default
|
|
endpoints = regions.get(region_name, list(regions.values())[0])
|
|
# Take the first endpoint
|
|
services = list(endpoints.values())[0]
|
|
# Try load-balancer service, if not take the first
|
|
versions = services.get('load-balancer', list(services.values())[0])
|
|
# Lookup the latest version. For safety, we won't look for
|
|
# version['status'] == 'CURRENT' and assume it's the maximum. Also we
|
|
# won't assume this dict is sorted.
|
|
max_ver = 0, 0
|
|
for version in versions:
|
|
v_tuple = versionutils.convert_version_to_tuple(version['version'])
|
|
if v_tuple > max_ver:
|
|
max_ver = v_tuple
|
|
|
|
LOG.debug("Detected Octavia version %d.%d", *max_ver)
|
|
return max_ver
|
|
|
|
def get_service_loadbalancer_name(self, namespace, svc_name):
|
|
return "%s/%s" % (namespace, svc_name)
|
|
|
|
def get_loadbalancer_pool_name(self, loadbalancer, namespace, svc_name):
|
|
return "%s/%s/%s" % (loadbalancer.name, namespace, svc_name)
|
|
|
|
def add_tags(self, resource, req):
|
|
if CONF.neutron_defaults.resource_tags:
|
|
if self._octavia_tags:
|
|
req['tags'] = CONF.neutron_defaults.resource_tags
|
|
else:
|
|
if resource in ('loadbalancer', 'listener', 'pool'):
|
|
req['description'] = ','.join(
|
|
CONF.neutron_defaults.resource_tags)
|
|
|
|
def ensure_loadbalancer(self, name, project_id, subnet_id, ip,
|
|
security_groups_ids=None, service_type=None,
|
|
provider=None):
|
|
request = obj_lbaas.LBaaSLoadBalancer(
|
|
name=name, project_id=project_id, subnet_id=subnet_id, ip=ip,
|
|
security_groups=security_groups_ids, provider=provider)
|
|
response = self._ensure(request, self._create_loadbalancer,
|
|
self._find_loadbalancer)
|
|
if not response:
|
|
# NOTE(ivc): load balancer was present before 'create', but got
|
|
# deleted externally between 'create' and 'find'
|
|
# NOTE(ltomasbo): or it is in ERROR status, so we deleted and
|
|
# trigger the retry
|
|
raise k_exc.ResourceNotReady(request)
|
|
|
|
return response
|
|
|
|
def release_loadbalancer(self, loadbalancer):
|
|
os_net = clients.get_network_client()
|
|
lbaas = clients.get_loadbalancer_client()
|
|
self._release(
|
|
loadbalancer,
|
|
loadbalancer,
|
|
lbaas.delete_load_balancer,
|
|
loadbalancer.id,
|
|
cascade=True)
|
|
|
|
sg_id = self._find_listeners_sg(loadbalancer)
|
|
if sg_id:
|
|
# Note: reusing activation timeout as deletion timeout
|
|
self._wait_for_deletion(loadbalancer, _ACTIVATION_TIMEOUT)
|
|
try:
|
|
os_net.delete_security_group(sg_id)
|
|
except os_exc.SDKException:
|
|
LOG.exception('Error when deleting loadbalancer security '
|
|
'group. Leaving it orphaned.')
|
|
|
|
def _create_lb_security_group_rule(self, loadbalancer, listener):
|
|
os_net = clients.get_network_client()
|
|
sg_id = self._find_listeners_sg(loadbalancer)
|
|
# if an SG for the loadbalancer has not being created, create one
|
|
if not sg_id:
|
|
sg = os_net.create_security_group(
|
|
name=loadbalancer.name, project_id=loadbalancer.project_id)
|
|
c_utils.tag_neutron_resources([sg])
|
|
loadbalancer.security_groups.append(sg.id)
|
|
vip_port = self._get_vip_port(loadbalancer)
|
|
os_net.update_port(vip_port.id, security_groups=[sg.id])
|
|
sg_id = sg.id
|
|
|
|
try:
|
|
os_net.create_security_group_rule(direction='ingress',
|
|
port_range_min=listener.port,
|
|
port_range_max=listener.port,
|
|
protocol=listener.protocol,
|
|
security_group_id=sg_id,
|
|
description=listener.name)
|
|
except os_exc.ConflictException:
|
|
pass
|
|
except os_exc.SDKException:
|
|
LOG.exception('Failed when creating security group rule for '
|
|
'listener %s.', listener.name)
|
|
|
|
def _create_listeners_acls(self, loadbalancer, port, target_port,
|
|
protocol, lb_sg, new_sgs, listener_id):
|
|
all_pod_rules = []
|
|
add_default_rules = False
|
|
os_net = clients.get_network_client()
|
|
|
|
if new_sgs:
|
|
sgs = new_sgs
|
|
else:
|
|
sgs = loadbalancer.security_groups
|
|
|
|
# Check if Network Policy allows listener on the pods
|
|
for sg in sgs:
|
|
if sg != lb_sg:
|
|
if sg in config.CONF.neutron_defaults.pod_security_groups:
|
|
# If default sg is set, this means there is no NP
|
|
# associated to the service, thus falling back to the
|
|
# default listener rules
|
|
add_default_rules = True
|
|
break
|
|
rules = os_net.security_group_rules(security_group_id=sg)
|
|
for rule in rules:
|
|
# NOTE(ltomasbo): NP sg can only have rules with
|
|
# or without remote_ip_prefix. Rules with remote_group_id
|
|
# are not possible, therefore only applying the ones
|
|
# with or without remote_ip_prefix.
|
|
if rule.remote_group_id:
|
|
continue
|
|
if (rule.protocol == protocol.lower() and
|
|
rule.direction == 'ingress'):
|
|
# If listener port not in allowed range, skip
|
|
min_port = rule.port_range_min
|
|
max_port = rule.port_range_max
|
|
if (min_port and target_port not in range(min_port,
|
|
max_port+1)):
|
|
continue
|
|
if rule.remote_ip_prefix:
|
|
all_pod_rules.append(rule.remote_ip_prefix)
|
|
else:
|
|
add_default_rules = True
|
|
|
|
if add_default_rules:
|
|
# update the listener without allowed-cidr
|
|
self._update_listener_acls(loadbalancer, listener_id, None)
|
|
else:
|
|
self._update_listener_acls(loadbalancer, listener_id,
|
|
all_pod_rules)
|
|
|
|
def _apply_members_security_groups(self, loadbalancer, port, target_port,
|
|
protocol, sg_rule_name, listener_id,
|
|
new_sgs=None):
|
|
LOG.debug("Applying members security groups.")
|
|
os_net = clients.get_network_client()
|
|
lb_sg = None
|
|
if CONF.octavia_defaults.sg_mode == 'create':
|
|
if new_sgs:
|
|
lb_name = sg_rule_name.split(":")[0]
|
|
lb_sg = self._find_listeners_sg(loadbalancer, lb_name=lb_name)
|
|
else:
|
|
lb_sg = self._find_listeners_sg(loadbalancer)
|
|
else:
|
|
vip_port = self._get_vip_port(loadbalancer)
|
|
if vip_port:
|
|
lb_sg = vip_port.security_group_ids[0]
|
|
|
|
# NOTE (maysams) It might happen that the update of LBaaS SG
|
|
# has been triggered and the LBaaS SG was not created yet.
|
|
# This update is skiped, until the LBaaS members are created.
|
|
if not lb_sg:
|
|
return
|
|
|
|
if self._octavia_acls:
|
|
self._create_listeners_acls(loadbalancer, port, target_port,
|
|
protocol, lb_sg, new_sgs, listener_id)
|
|
return
|
|
|
|
lbaas_sg_rules = os_net.security_group_rules(
|
|
security_group_id=lb_sg, project_id=loadbalancer.project_id)
|
|
all_pod_rules = []
|
|
add_default_rules = False
|
|
|
|
if new_sgs:
|
|
sgs = new_sgs
|
|
else:
|
|
sgs = loadbalancer.security_groups
|
|
|
|
# Check if Network Policy allows listener on the pods
|
|
for sg in sgs:
|
|
if sg != lb_sg:
|
|
if sg in config.CONF.neutron_defaults.pod_security_groups:
|
|
# If default sg is set, this means there is no NP
|
|
# associated to the service, thus falling back to the
|
|
# default listener rules
|
|
add_default_rules = True
|
|
break
|
|
rules = os_net.security_group_rules(security_group_id=sg)
|
|
for rule in rules:
|
|
# copying ingress rules with same protocol onto the
|
|
# loadbalancer sg rules
|
|
# NOTE(ltomasbo): NP sg can only have rules with
|
|
# or without remote_ip_prefix. Rules with remote_group_id
|
|
# are not possible, therefore only applying the ones
|
|
# with or without remote_ip_prefix.
|
|
if (rule.protocol == protocol.lower() and
|
|
rule.direction == 'ingress'):
|
|
# If listener port not in allowed range, skip
|
|
min_port = rule.port_range_min
|
|
max_port = rule.port_range_max
|
|
if (min_port and target_port not in range(min_port,
|
|
max_port+1)):
|
|
continue
|
|
all_pod_rules.append(rule)
|
|
sg_rule_ethertype = ipaddress.ip_network(
|
|
rule.remote_ip_prefix).version
|
|
try:
|
|
LOG.debug("Creating LBaaS sg rule for sg: %r",
|
|
lb_sg)
|
|
os_net.create_security_group_rule(
|
|
direction='ingress',
|
|
ether_type=sg_rule_ethertype,
|
|
port_range_min=port,
|
|
port_range_max=port,
|
|
protocol=protocol,
|
|
remote_ip_prefix=rule.remote_ip_prefix,
|
|
security_group_id=lb_sg,
|
|
description=sg_rule_name)
|
|
except os_exc.ConflictException:
|
|
pass
|
|
except os_exc.SDKException:
|
|
LOG.exception('Failed when creating security '
|
|
'group rule for listener %s.',
|
|
sg_rule_name)
|
|
|
|
# Delete LBaaS sg rules that do not match NP
|
|
for rule in lbaas_sg_rules:
|
|
if (rule.protocol != protocol.lower() or
|
|
rule.port_range_min != port or
|
|
rule.direction != 'ingress'):
|
|
if all_pod_rules and self._is_default_rule(rule):
|
|
LOG.debug("Removing default LBaaS sg rule for sg: %r",
|
|
lb_sg)
|
|
os_net.delete_security_group_rule(rule.id)
|
|
continue
|
|
self._delete_rule_if_no_match(rule, all_pod_rules)
|
|
|
|
if add_default_rules:
|
|
sg_rule_ethertype = k_const.IPv4
|
|
if utils.get_service_subnet_version() == k_const.IP_VERSION_6:
|
|
sg_rule_ethertype = k_const.IPv6
|
|
try:
|
|
LOG.debug("Restoring default LBaaS sg rule for sg: %r", lb_sg)
|
|
os_net.create_security_group_rule(direction='ingress',
|
|
ether_type=sg_rule_ethertype,
|
|
port_range_min=port,
|
|
port_range_max=port,
|
|
protocol=protocol,
|
|
security_group_id=lb_sg,
|
|
description=sg_rule_name)
|
|
except os_exc.ConflictException:
|
|
pass
|
|
except os_exc.SDKException:
|
|
LOG.exception('Failed when creating security group rule for '
|
|
'listener %s.', sg_rule_name)
|
|
|
|
def _delete_rule_if_no_match(self, rule, all_pod_rules):
|
|
for pod_rule in all_pod_rules:
|
|
if pod_rule['remote_ip_prefix'] == rule['remote_ip_prefix']:
|
|
return
|
|
os_net = clients.get_network_client()
|
|
LOG.debug("Deleting sg rule: %r", rule.id)
|
|
os_net.delete_security_group_rule(rule.id)
|
|
|
|
def _is_default_rule(self, rule):
|
|
return (rule.get('direction') == 'ingress' and
|
|
not rule.get('remote_ip_prefix') and
|
|
'network-policy' not in rule.get('description'))
|
|
|
|
def ensure_listener(self, loadbalancer, protocol, port,
|
|
service_type='ClusterIP'):
|
|
name = "%s:%s:%s" % (loadbalancer.name, protocol, port)
|
|
listener = obj_lbaas.LBaaSListener(name=name,
|
|
project_id=loadbalancer.project_id,
|
|
loadbalancer_id=loadbalancer.id,
|
|
protocol=protocol,
|
|
port=port)
|
|
try:
|
|
result = self._ensure_provisioned(
|
|
loadbalancer, listener, self._create_listener,
|
|
self._find_listener, _LB_STS_POLL_SLOW_INTERVAL)
|
|
except os_exc.SDKException:
|
|
LOG.exception("Listener creation failed, most probably because "
|
|
"protocol %(prot)s is not supported",
|
|
{'prot': protocol})
|
|
return None
|
|
|
|
if CONF.octavia_defaults.sg_mode == 'create':
|
|
self._create_lb_security_group_rule(loadbalancer, result)
|
|
|
|
return result
|
|
|
|
def release_listener(self, loadbalancer, listener):
|
|
os_net = clients.get_network_client()
|
|
lbaas = clients.get_loadbalancer_client()
|
|
self._release(loadbalancer, listener,
|
|
lbaas.delete_listener,
|
|
listener.id)
|
|
|
|
if CONF.octavia_defaults.sg_mode == 'create':
|
|
sg_id = self._find_listeners_sg(loadbalancer)
|
|
else:
|
|
sg_id = self._get_vip_port(loadbalancer).security_group_ids[0]
|
|
if sg_id:
|
|
rules = os_net.security_group_rules(security_group_id=sg_id,
|
|
description=listener.name)
|
|
try:
|
|
os_net.delete_security_group_rule(next(rules).id)
|
|
except StopIteration:
|
|
LOG.warning('Cannot find SG rule for %s (%s) listener.',
|
|
listener.id, listener.name)
|
|
|
|
def ensure_pool(self, loadbalancer, listener):
|
|
pool = obj_lbaas.LBaaSPool(name=listener.name,
|
|
project_id=loadbalancer.project_id,
|
|
loadbalancer_id=loadbalancer.id,
|
|
listener_id=listener.id,
|
|
protocol=listener.protocol)
|
|
return self._ensure_provisioned(loadbalancer, pool,
|
|
self._create_pool,
|
|
self._find_pool)
|
|
|
|
def ensure_pool_attached_to_lb(self, loadbalancer, namespace,
|
|
svc_name, protocol):
|
|
name = self.get_loadbalancer_pool_name(loadbalancer,
|
|
namespace, svc_name)
|
|
pool = obj_lbaas.LBaaSPool(name=name,
|
|
project_id=loadbalancer.project_id,
|
|
loadbalancer_id=loadbalancer.id,
|
|
listener_id=None,
|
|
protocol=protocol)
|
|
return self._ensure_provisioned(loadbalancer, pool,
|
|
self._create_pool,
|
|
self._find_pool_by_name)
|
|
|
|
def release_pool(self, loadbalancer, pool):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
self._release(loadbalancer, pool, lbaas.delete_pool, pool.id)
|
|
|
|
def ensure_member(self, loadbalancer, pool,
|
|
subnet_id, ip, port, target_ref_namespace,
|
|
target_ref_name, listener_port=None):
|
|
name = ("%s/%s" % (target_ref_namespace, target_ref_name))
|
|
name += ":%s" % port
|
|
member = obj_lbaas.LBaaSMember(name=name,
|
|
project_id=loadbalancer.project_id,
|
|
pool_id=pool.id,
|
|
subnet_id=subnet_id,
|
|
ip=ip,
|
|
port=port)
|
|
result = self._ensure_provisioned(loadbalancer, member,
|
|
self._create_member,
|
|
self._find_member)
|
|
|
|
network_policy = (
|
|
'policy' in CONF.kubernetes.enabled_handlers and
|
|
CONF.kubernetes.service_security_groups_driver == 'policy')
|
|
if (network_policy and CONF.octavia_defaults.enforce_sg_rules and
|
|
listener_port):
|
|
protocol = pool.protocol
|
|
sg_rule_name = pool.name
|
|
listener_id = pool.listener_id
|
|
self._apply_members_security_groups(loadbalancer, listener_port,
|
|
port, protocol, sg_rule_name,
|
|
listener_id)
|
|
return result
|
|
|
|
def release_member(self, loadbalancer, member):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
self._release(loadbalancer, member, lbaas.delete_member, member.id,
|
|
member.pool_id)
|
|
|
|
def _get_vip_port(self, loadbalancer):
|
|
os_net = clients.get_network_client()
|
|
try:
|
|
fixed_ips = ['subnet_id=%s' % str(loadbalancer.subnet_id),
|
|
'ip_address=%s' % str(loadbalancer.ip)]
|
|
ports = os_net.ports(fixed_ips=fixed_ips)
|
|
except os_exc.SDKException:
|
|
LOG.error("Port with fixed ips %s not found!", fixed_ips)
|
|
raise
|
|
|
|
try:
|
|
return next(ports)
|
|
except StopIteration:
|
|
return None
|
|
|
|
def _create_loadbalancer(self, loadbalancer):
|
|
request = {
|
|
'name': loadbalancer.name,
|
|
'project_id': loadbalancer.project_id,
|
|
'vip_address': str(loadbalancer.ip),
|
|
'vip_subnet_id': loadbalancer.subnet_id,
|
|
}
|
|
|
|
if loadbalancer.provider is not None:
|
|
request['provider'] = loadbalancer.provider
|
|
|
|
self.add_tags('loadbalancer', request)
|
|
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.create_load_balancer(**request)
|
|
|
|
loadbalancer.id = response.id
|
|
loadbalancer.port_id = self._get_vip_port(loadbalancer).id
|
|
if (loadbalancer.provider is not None and
|
|
loadbalancer.provider != response.provider):
|
|
LOG.error("Request provider(%s) != Response provider(%s)",
|
|
loadbalancer.provider, response.provider)
|
|
return None
|
|
loadbalancer.provider = response.provider
|
|
return loadbalancer
|
|
|
|
def _find_loadbalancer(self, loadbalancer):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.load_balancers(
|
|
name=loadbalancer.name,
|
|
project_id=loadbalancer.project_id,
|
|
vip_address=str(loadbalancer.ip),
|
|
vip_subnet_id=loadbalancer.subnet_id)
|
|
|
|
try:
|
|
os_lb = next(response) # openstacksdk returns a generator
|
|
loadbalancer.id = os_lb.id
|
|
loadbalancer.port_id = self._get_vip_port(loadbalancer).id
|
|
loadbalancer.provider = os_lb.provider
|
|
if os_lb.provisioning_status == 'ERROR':
|
|
self.release_loadbalancer(loadbalancer)
|
|
return None
|
|
except (KeyError, StopIteration):
|
|
return None
|
|
|
|
return loadbalancer
|
|
|
|
def _create_listener(self, listener):
|
|
request = {
|
|
'name': listener.name,
|
|
'project_id': listener.project_id,
|
|
'loadbalancer_id': listener.loadbalancer_id,
|
|
'protocol': listener.protocol,
|
|
'protocol_port': listener.port,
|
|
}
|
|
self.add_tags('listener', request)
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.create_listener(**request)
|
|
listener.id = response.id
|
|
return listener
|
|
|
|
def _update_listener_acls(self, loadbalancer, listener_id, allowed_cidrs):
|
|
admin_state_up = True
|
|
if allowed_cidrs is None:
|
|
# World accessible, no restriction on the listeners
|
|
pass
|
|
elif len(allowed_cidrs) == 0:
|
|
# Prevent any traffic as no CIDR is allowed
|
|
admin_state_up = False
|
|
|
|
request = {
|
|
'allowed_cidrs': allowed_cidrs,
|
|
'admin_state_up': admin_state_up,
|
|
}
|
|
|
|
# Wait for the loadbalancer to be ACTIVE
|
|
self._wait_for_provisioning(loadbalancer, _ACTIVATION_TIMEOUT,
|
|
_LB_STS_POLL_FAST_INTERVAL)
|
|
|
|
lbaas = clients.get_loadbalancer_client()
|
|
try:
|
|
lbaas.update_listener(listener_id, **request)
|
|
except os_exc.SDKException:
|
|
LOG.exception('Error when updating listener %s' % listener_id)
|
|
raise k_exc.ResourceNotReady(listener_id)
|
|
|
|
def _find_listener(self, listener):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.listeners(
|
|
name=listener.name,
|
|
project_id=listener.project_id,
|
|
load_balancer_id=listener.loadbalancer_id,
|
|
protocol=listener.protocol,
|
|
protocol_port=listener.port)
|
|
|
|
try:
|
|
os_listener = next(response)
|
|
listener.id = os_listener.id
|
|
except (KeyError, StopIteration):
|
|
return None
|
|
|
|
return listener
|
|
|
|
def _create_pool(self, pool):
|
|
# TODO(ivc): make lb_algorithm configurable
|
|
lb_algorithm = CONF.octavia_defaults.lb_algorithm
|
|
request = {
|
|
'name': pool.name,
|
|
'project_id': pool.project_id,
|
|
'listener_id': pool.listener_id,
|
|
'loadbalancer_id': pool.loadbalancer_id,
|
|
'protocol': pool.protocol,
|
|
'lb_algorithm': lb_algorithm,
|
|
}
|
|
self.add_tags('pool', request)
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.create_pool(**request)
|
|
pool.id = response.id
|
|
return pool
|
|
|
|
def _find_pool(self, pool, by_listener=True):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.pools(
|
|
name=pool.name,
|
|
project_id=pool.project_id,
|
|
loadbalancer_id=pool.loadbalancer_id,
|
|
protocol=pool.protocol)
|
|
|
|
try:
|
|
if by_listener:
|
|
pools = [p for p in response if pool.listener_id
|
|
in {l['id'] for l in p.listeners}]
|
|
else:
|
|
pools = [p for p in response if pool.name == p.name]
|
|
|
|
pool.id = pools[0].id
|
|
except (KeyError, IndexError):
|
|
return None
|
|
return pool
|
|
|
|
def _find_pool_by_name(self, pool):
|
|
return self._find_pool(pool, by_listener=False)
|
|
|
|
def _create_member(self, member):
|
|
request = {
|
|
'name': member.name,
|
|
'project_id': member.project_id,
|
|
'subnet_id': member.subnet_id,
|
|
'address': str(member.ip),
|
|
'protocol_port': member.port,
|
|
}
|
|
self.add_tags('member', request)
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.create_member(member.pool_id, **request)
|
|
member.id = response.id
|
|
return member
|
|
|
|
def _find_member(self, member):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
response = lbaas.members(
|
|
member.pool_id,
|
|
name=member.name,
|
|
project_id=member.project_id,
|
|
subnet_id=member.subnet_id,
|
|
address=member.ip,
|
|
protocol_port=member.port)
|
|
|
|
try:
|
|
member.id = next(response).id
|
|
except (KeyError, StopIteration):
|
|
return None
|
|
|
|
return member
|
|
|
|
def _ensure(self, obj, create, find):
|
|
okay_codes = (409, 500)
|
|
try:
|
|
result = create(obj)
|
|
LOG.debug("Created %(obj)s", {'obj': result})
|
|
return result
|
|
except os_exc.HttpException as e:
|
|
if e.status_code not in okay_codes:
|
|
raise
|
|
|
|
result = find(obj)
|
|
if result:
|
|
LOG.debug("Found %(obj)s", {'obj': result})
|
|
return result
|
|
|
|
def _ensure_provisioned(self, loadbalancer, obj, create, find,
|
|
interval=_LB_STS_POLL_FAST_INTERVAL):
|
|
for remaining in self._provisioning_timer(_ACTIVATION_TIMEOUT,
|
|
interval):
|
|
self._wait_for_provisioning(loadbalancer, remaining, interval)
|
|
try:
|
|
result = self._ensure(obj, create, find)
|
|
if result:
|
|
return result
|
|
except os_exc.BadRequestException:
|
|
raise
|
|
except os_exc.SDKException:
|
|
pass
|
|
|
|
raise k_exc.ResourceNotReady(obj)
|
|
|
|
def _release(self, loadbalancer, obj, delete, *args, **kwargs):
|
|
for remaining in self._provisioning_timer(_ACTIVATION_TIMEOUT):
|
|
try:
|
|
try:
|
|
delete(*args, **kwargs)
|
|
return
|
|
except (os_exc.ConflictException, os_exc.BadRequestException):
|
|
self._wait_for_provisioning(loadbalancer, remaining)
|
|
except os_exc.NotFoundException:
|
|
return
|
|
|
|
raise k_exc.ResourceNotReady(obj)
|
|
|
|
def _wait_for_provisioning(self, loadbalancer, timeout,
|
|
interval=_LB_STS_POLL_FAST_INTERVAL):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
|
|
for remaining in self._provisioning_timer(timeout, interval):
|
|
response = lbaas.get_load_balancer(loadbalancer.id)
|
|
status = response.provisioning_status
|
|
if status == 'ACTIVE':
|
|
LOG.debug("Provisioning complete for %(lb)s", {
|
|
'lb': loadbalancer})
|
|
return
|
|
elif status == 'ERROR':
|
|
LOG.debug("Releasing loadbalancer %s with error status",
|
|
loadbalancer.id)
|
|
self.release_loadbalancer(loadbalancer)
|
|
break
|
|
else:
|
|
LOG.debug("Provisioning status %(status)s for %(lb)s, "
|
|
"%(rem).3gs remaining until timeout",
|
|
{'status': status, 'lb': loadbalancer,
|
|
'rem': remaining})
|
|
|
|
raise k_exc.ResourceNotReady(loadbalancer)
|
|
|
|
def _wait_for_deletion(self, loadbalancer, timeout,
|
|
interval=_LB_STS_POLL_FAST_INTERVAL):
|
|
lbaas = clients.get_loadbalancer_client()
|
|
|
|
for remaining in self._provisioning_timer(timeout, interval):
|
|
try:
|
|
lbaas.get_load_balancer(loadbalancer.id)
|
|
except os_exc.NotFoundException:
|
|
return
|
|
|
|
def _provisioning_timer(self, timeout,
|
|
interval=_LB_STS_POLL_FAST_INTERVAL):
|
|
# REVISIT(ivc): consider integrating with Retry
|
|
max_interval = 15
|
|
with timeutils.StopWatch(duration=timeout) as timer:
|
|
while not timer.expired():
|
|
yield timer.leftover()
|
|
interval = interval * 2 * random.gauss(0.8, 0.05)
|
|
interval = min(interval, max_interval)
|
|
interval = min(interval, timer.leftover())
|
|
if interval:
|
|
time.sleep(interval)
|
|
|
|
def _find_listeners_sg(self, loadbalancer, lb_name=None):
|
|
os_net = clients.get_network_client()
|
|
if lb_name:
|
|
sgs = os_net.security_groups(name=lb_name,
|
|
project_id=loadbalancer.project_id)
|
|
# NOTE(ltomasbo): lb_name parameter is only passed when sg_mode
|
|
# is 'create' and in that case there is only one sg associated
|
|
# to the loadbalancer
|
|
try:
|
|
sg_id = next(sgs).id
|
|
except StopIteration:
|
|
sg_id = None
|
|
LOG.debug("Security Group not created yet for LBaaS.")
|
|
return sg_id
|
|
try:
|
|
sgs = os_net.security_groups(name=loadbalancer.name,
|
|
project_id=loadbalancer.project_id)
|
|
for sg in sgs:
|
|
try:
|
|
if sg.id in loadbalancer.security_groups:
|
|
return sg.id
|
|
except TypeError:
|
|
LOG.exception('Loadbalancer %s does not have '
|
|
'security_groups defined.',
|
|
loadbalancer.name)
|
|
raise
|
|
except os_exc.SDKException:
|
|
LOG.exception('Cannot list security groups for loadbalancer %s.',
|
|
loadbalancer.name)
|
|
|
|
return None
|
|
|
|
def update_lbaas_sg(self, service, sgs):
|
|
LOG.debug('Setting SG for LBaaS VIP port')
|
|
|
|
svc_namespace = service['metadata']['namespace']
|
|
svc_name = service['metadata']['name']
|
|
svc_ports = service['spec'].get('ports', [])
|
|
|
|
lbaas_name = "%s/%s" % (svc_namespace, svc_name)
|
|
|
|
endpoints_link = utils.get_endpoints_link(service)
|
|
k8s = clients.get_kubernetes_client()
|
|
endpoint = k8s.get(endpoints_link)
|
|
|
|
lbaas = utils.get_lbaas_state(endpoint)
|
|
if not lbaas:
|
|
LOG.debug('Endpoint not yet annotated with lbaas state.')
|
|
raise k_exc.ResourceNotReady(svc_name)
|
|
|
|
lbaas_obj = lbaas.loadbalancer
|
|
lbaas_obj.security_groups = sgs
|
|
|
|
utils.set_lbaas_state(endpoint, lbaas)
|
|
|
|
lsnr_ids = {(l.protocol, l.port): l.id for l in lbaas.listeners}
|
|
|
|
for port in svc_ports:
|
|
port_protocol = port['protocol']
|
|
lbaas_port = port['port']
|
|
target_port = port['targetPort']
|
|
sg_rule_name = "%s:%s:%s" % (lbaas_name, port_protocol, lbaas_port)
|
|
listener_id = lsnr_ids.get((port_protocol, target_port))
|
|
if listener_id is None:
|
|
LOG.warning("There is no listener associated to the protocol "
|
|
"%s and port %s. Skipping", port_protocol,
|
|
lbaas_port)
|
|
continue
|
|
self._apply_members_security_groups(lbaas_obj, lbaas_port,
|
|
target_port, port_protocol,
|
|
sg_rule_name, listener_id, sgs)
|