# 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 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 import exceptions as k_exc 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 # NOTE(ltomasbo): amphora supports it on 2.11, but ovn-octavia only on 2.13 # In order to make it simpler, we assume this is supported only from 2.13 _OCTAVIA_DL_VERSION = 2, 13 _OCTAVIA_ACL_VERSION = 2, 12 _OCTAVIA_PROVIDER_VERSION = 2, 6 # HTTP Codes raised by Octavia when a Resource already exists OKAY_CODES = (409, 500) 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 self._octavia_providers = 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: 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) if v >= _OCTAVIA_PROVIDER_VERSION: self._octavia_providers = True def double_listeners_supported(self): return self._octavia_double_listeners def providers_supported(self): return self._octavia_providers 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 = { 'name': name, 'project_id': project_id, 'subnet_id': subnet_id, 'ip': ip, 'security_groups': security_groups_ids, 'provider': provider } response = self._ensure_loadbalancer(request) 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): lbaas = clients.get_loadbalancer_client() self._release( loadbalancer, loadbalancer, lbaas.delete_load_balancer, loadbalancer['id'], cascade=True) self._wait_for_deletion(loadbalancer, _ACTIVATION_TIMEOUT) 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() sgs = [] if new_sgs: sgs = new_sgs elif loadbalancer['security_groups']: sgs = loadbalancer['security_groups'] else: # NOTE(gryf): in case there is no new SG rules and loadbalancer # has the SG removed, just add default ones. add_default_rules = True # 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.enforce_sg_rules: vip_port = self._get_vip_port(loadbalancer) if vip_port: try: lb_sg = vip_port.security_group_ids[0] except IndexError: LOG.warning("We still waiting for SG to be created for " "VIP %s", vip_port) raise k_exc.ResourceNotReady(listener_id) else: LOG.debug("Skipping sg update for lb %s", loadbalancer['name']) return # 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'] sg_rule_ethertype = k_const.IPv4 if utils.get_service_subnet_version() == k_const.IP_VERSION_6: sg_rule_ethertype = k_const.IPv6 # 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) 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: 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 = { '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, interval=_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 # NOTE(maysams): When ovn-octavia provider is used # there is no need to set a security group for # the load balancer as it wouldn't be enforced. if not CONF.octavia_defaults.enforce_sg_rules and result: os_net = clients.get_network_client() vip_port = self._get_vip_port(loadbalancer) if vip_port: os_net.update_port(vip_port.id, security_groups=[]) loadbalancer['security_groups'] = [] 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']) # NOTE(maysams): since lbs created with ovn-octavia provider # does not have a sg in place, only need to delete sg rules # when enforcing sg rules on the lb sg, meaning octavia # Amphora provider is configured. if CONF.octavia_defaults.enforce_sg_rules: try: sg_id = self._get_vip_port(loadbalancer).security_group_ids[0] except AttributeError: sg_id = None 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 = { '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 = { '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): lbaas = clients.get_loadbalancer_client() name = ("%s/%s" % (target_ref_namespace, target_ref_name)) name += ":%s" % port member = { '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, update=lbaas.update_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'], provider=loadbalancer['provider']) 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) utils.clean_lb_crd_status(loadbalancer['name']) 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 if not self._wait_for_provisioning( loadbalancer, _ACTIVATION_TIMEOUT, _LB_STS_POLL_FAST_INTERVAL): LOG.debug('Skipping ACLs update. ' 'No Load Balancer Provisioned.') return lbaas = clients.get_loadbalancer_client() try: lbaas.update_listener(listener_id, **request) except os_exc.SDKException: LOG.error('Error when updating listener %s' % listener_id) raise k_exc.ResourceNotReady(listener_id) def _find_listener(self, listener, loadbalancer): 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 if os_listener.provisioning_status == 'ERROR': LOG.debug("Releasing listener %s", os_listener.id) self.release_listener(loadbalancer, listener) return None 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, loadbalancer, 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']) # TODO(scavnic) check response try: if by_listener: pools = [p for p in response if pool['listener_id'] in {listener['id'] for listener in p.listeners}] else: pools = [p for p in response if pool.name == p.name] pool['id'] = pools[0].id if pools[0].provisioning_status == 'ERROR': LOG.debug("Releasing pool %s", pool.id) self.release_pool(loadbalancer, pool) return None except (KeyError, IndexError): return None return pool def _find_pool_by_name(self, pool, loadbalancer): return self._find_pool(pool, loadbalancer, 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, loadbalancer): lbaas = clients.get_loadbalancer_client() member = dict(member) response = lbaas.members( member['pool_id'], project_id=member['project_id'], subnet_id=member['subnet_id'], address=member['ip'], protocol_port=member['port']) try: os_members = next(response) member['id'] = os_members.id member['name'] = os_members.name if os_members.provisioning_status == 'ERROR': LOG.debug("Releasing Member %s", os_members.id) self.release_member(loadbalancer, member) return None except (KeyError, StopIteration): return None return member def _ensure(self, create, find, obj, loadbalancer, update=None): 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, loadbalancer) # NOTE(maysams): A conflict may happen when a member is # a lefover and a new pod uses the same address. Let's # attempt to udpate the member name if already existent. if result and obj['name'] != result.get('name') and update: update(result['id'], obj['pool_id'], name=obj['name']) result['name'] = obj['name'] if result: LOG.debug("Found %(obj)s", {'obj': result}) return result def _ensure_loadbalancer(self, loadbalancer): try: result = self._create_loadbalancer(loadbalancer) 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 = self._find_loadbalancer(loadbalancer) 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, **kwargs): for remaining in self._provisioning_timer(_ACTIVATION_TIMEOUT, interval): if not self._wait_for_provisioning( loadbalancer, remaining, interval): return None try: result = self._ensure( create, find, obj, loadbalancer, **kwargs) 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): if not self._wait_for_provisioning( loadbalancer, remaining): return 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): try: response = lbaas.get_load_balancer(loadbalancer['id']) except os_exc.ResourceNotFound: LOG.debug("Cleaning CRD status for deleted " "loadbalancer %s", loadbalancer['name']) utils.clean_lb_crd_status(loadbalancer['name']) return None status = response.provisioning_status if status == 'ACTIVE': LOG.debug("Provisioning complete for %(lb)s", { 'lb': loadbalancer}) return loadbalancer elif status == 'ERROR': LOG.debug("Releasing loadbalancer %s with error status", loadbalancer['id']) self.release_loadbalancer(loadbalancer) utils.clean_lb_crd_status(loadbalancer['name']) return None elif status == 'DELETED': LOG.debug("Cleaning CRD status for deleted " "loadbalancer %s", loadbalancer['name']) utils.clean_lb_crd_status(loadbalancer['name']) return None 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 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() try: k8s.get(endpoints_link) except k_exc.K8sResourceNotFound: LOG.debug("Endpoint not Found. Skipping LB SG update for " "%s as the LB resources are not present", lbaas_name) return try: klb = k8s.get(f'{k_const.K8S_API_CRD_NAMESPACES}/{svc_namespace}/' f'kuryrloadbalancers/{svc_name}') except k_exc.K8sResourceNotFound: LOG.debug('No KuryrLoadBalancer for service %s created yet.', lbaas_name) raise k_exc.ResourceNotReady(svc_name) if (not klb.get('status', {}).get('loadbalancer') or klb.get('status', {}).get('listeners') is None): LOG.debug('KuryrLoadBalancer for service %s not populated yet.', lbaas_name) raise k_exc.ResourceNotReady(svc_name) klb['status']['loadbalancer']['security_groups'] = sgs lb = klb['status']['loadbalancer'] try: k8s.patch_crd('status/loadbalancer', klb['metadata']['selfLink'], {'security_groups': sgs}) except k_exc.K8sResourceNotFound: LOG.debug('KuryrLoadBalancer CRD not found %s', lbaas_name) return except k_exc.K8sClientException: LOG.exception('Error updating KuryLoadBalancer CRD %s', lbaas_name) raise lsnr_ids = {(listener['protocol'], listener['port']): listener['id'] for listener in klb['status']['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, lbaas_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(lb, lbaas_port, target_port, port_protocol, sg_rule_name, listener_id, sgs)