116 lines
4.6 KiB
Python
116 lines
4.6 KiB
Python
# Copyright 2015 Hewlett Packard Enterprise Development Company LP
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import log as logging
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from octavia.amphorae.drivers import driver_base
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from octavia.amphorae.drivers.keepalived.jinja import jinja_cfg
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from octavia.common import constants
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LOG = logging.getLogger(__name__)
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API_VERSION = constants.API_VERSION
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class KeepalivedAmphoraDriverMixin(driver_base.VRRPDriverMixin):
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def __init__(self):
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super(KeepalivedAmphoraDriverMixin, self).__init__()
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# The Mixed class must define a self.client object for the
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# AmphoraApiClient
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def update_vrrp_conf(self, loadbalancer, amphorae_network_config, amphora,
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timeout_dict=None):
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"""Update amphora of the loadbalancer with a new VRRP configuration
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:param loadbalancer: loadbalancer object
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:param amphorae_network_config: amphorae network configurations
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:param amphora: The amphora object to update.
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:param timeout_dict: Dictionary of timeout values for calls to the
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amphora. May contain: req_conn_timeout,
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req_read_timeout, conn_max_retries,
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conn_retry_interval
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"""
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if amphora.status != constants.AMPHORA_ALLOCATED:
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LOG.debug('update_vrrp_conf called for un-allocated amphora %s. '
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'Ignoring.', amphora.id)
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return
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templater = jinja_cfg.KeepalivedJinjaTemplater()
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LOG.debug("Update amphora %s VRRP configuration.", amphora.id)
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self._populate_amphora_api_version(amphora)
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# Get the VIP subnet prefix for the amphora
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# For amphorav2 amphorae_network_config will be list of dicts
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try:
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vip_cidr = amphorae_network_config[amphora.id].vip_subnet.cidr
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except AttributeError:
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vip_cidr = amphorae_network_config[amphora.id][
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constants.VIP_SUBNET][constants.CIDR]
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# Generate Keepalived configuration from loadbalancer object
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config = templater.build_keepalived_config(
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loadbalancer, amphora, vip_cidr)
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self.clients[amphora.api_version].upload_vrrp_config(amphora, config)
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def stop_vrrp_service(self, loadbalancer):
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"""Stop the vrrp services running on the loadbalancer's amphorae
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:param loadbalancer: loadbalancer object
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"""
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LOG.info("Stop loadbalancer %s amphora VRRP Service.",
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loadbalancer.id)
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for amp in filter(
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lambda amp: amp.status == constants.AMPHORA_ALLOCATED,
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loadbalancer.amphorae):
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self._populate_amphora_api_version(amp)
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self.clients[amp.api_version].stop_vrrp(amp)
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def start_vrrp_service(self, amphora, timeout_dict=None):
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"""Start the VRRP services on an amphorae.
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:param amphora: amphora object
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:param timeout_dict: Dictionary of timeout values for calls to the
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amphora. May contain: req_conn_timeout,
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req_read_timeout, conn_max_retries,
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conn_retry_interval
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"""
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if amphora.status != constants.AMPHORA_ALLOCATED:
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LOG.debug('start_vrrp_service called for un-allocated amphora %s. '
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'Ignoring.', amphora.id)
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return
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LOG.info("Start amphora %s VRRP Service.", amphora.id)
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self._populate_amphora_api_version(amphora)
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self.clients[amphora.api_version].start_vrrp(amphora,
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timeout_dict=timeout_dict)
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def reload_vrrp_service(self, loadbalancer):
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"""Reload the VRRP services of all amphorae of the loadbalancer
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:param loadbalancer: loadbalancer object
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"""
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LOG.info("Reload loadbalancer %s amphora VRRP Service.",
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loadbalancer.id)
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for amp in filter(
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lambda amp: amp.status == constants.AMPHORA_ALLOCATED,
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loadbalancer.amphorae):
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self._populate_amphora_api_version(amp)
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self.clients[amp.api_version].reload_vrrp(amp)
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