# Copyright 2019 Red Hat 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.
from oslo_log import log as logging
from tempest import config
from tempest.lib.common.utils import data_utils
from tempest.lib import decorators
from octavia_tempest_plugin.common import constants as const
from octavia_tempest_plugin.tests import test_base
from octavia_tempest_plugin.tests import waiters
CONF = config.CONF
LOG = logging.getLogger(__name__)
[docs]
class SparePoolTest(test_base.LoadBalancerBaseTestWithCompute):
[docs]
@classmethod
def skip_checks(cls):
super(SparePoolTest, cls).skip_checks()
if CONF.load_balancer.provider not in const.AMPHORA_PROVIDERS:
raise cls.skipException("Amphora tests require provider 'amphora' "
"or 'octavia' (alias to 'amphora', "
"deprecated) set")
if not CONF.loadbalancer_feature_enabled.spare_pool_enabled:
raise cls.skipException('[loadbalancer-feature-enabled] '
'"spare_pool_enabled" is set to False in '
'the Tempest configuration. Spare pool '
'tests will be skipped.')
[docs]
@classmethod
def resource_setup(cls):
"""Setup resources needed by the tests"""
super(SparePoolTest, cls).resource_setup()
[docs]
@decorators.idempotent_id('2ba3a2c2-de9d-4556-9535-cbe9209b4eaa')
def test_health_manager_failover_to_spare_amp(self):
"""Tests Health Manager failover to amphora in spare pool.
* Check amphora spare pool availability
* Test the load balancer to make sure it is functioning
* Delete amphora compute instance associated to load balancer
* Validate load balancer fails over to spare amphora
* Send traffic through load balancer
* Validate amphora spare pool size is restored
"""
amphora_client = self.os_admin.load_balancer_v2.AmphoraClient()
# Check there is at least one amphora in spare pool
spare_amps = waiters.wait_for_spare_amps(
amphora_client.list_amphorae,
CONF.load_balancer.lb_build_interval,
CONF.load_balancer.lb_build_timeout)
# Setup a load balancer for the tests to use
lb_name = data_utils.rand_name("lb_spare_pool")
lb_kwargs = {const.PROVIDER: CONF.load_balancer.provider,
const.NAME: lb_name}
self._setup_lb_network_kwargs(lb_kwargs, 4)
lb = self.mem_lb_client.create_loadbalancer(**lb_kwargs)
self.lb_id = lb[const.ID]
self.addClassResourceCleanup(self.mem_lb_client.cleanup_loadbalancer,
self.lb_id, cascade=True)
if CONF.validation.connect_method == 'floating':
port_id = lb[const.VIP_PORT_ID]
result = self.lb_mem_float_ip_client.create_floatingip(
floating_network_id=CONF.network.public_network_id,
port_id=port_id)
floating_ip = result['floatingip']
LOG.info('lb1_floating_ip: {}'.format(floating_ip))
self.addClassResourceCleanup(
waiters.wait_for_not_found,
self.lb_mem_float_ip_client.delete_floatingip,
self.lb_mem_float_ip_client.show_floatingip,
floatingip_id=floating_ip['id'])
self.lb_vip_address = floating_ip['floating_ip_address']
else:
self.lb_vip_address = lb[const.VIP_ADDRESS]
waiters.wait_for_status(self.mem_lb_client.show_loadbalancer,
self.lb_id, const.PROVISIONING_STATUS,
const.ACTIVE,
CONF.load_balancer.lb_build_interval,
CONF.load_balancer.lb_build_timeout)
# Confirm the spare pool has changed since last check
spare_amps_2 = waiters.wait_for_spare_amps(
amphora_client.list_amphorae,
CONF.load_balancer.lb_build_interval,
CONF.load_balancer.lb_build_timeout)
self.assertNotEqual(spare_amps, spare_amps_2)
listener_name = data_utils.rand_name("lb_member_listener1_spare")
listener_kwargs = {
const.NAME: listener_name,
const.PROTOCOL: const.HTTP,
const.PROTOCOL_PORT: '80',
const.LOADBALANCER_ID: self.lb_id,
}
listener = self.mem_listener_client.create_listener(**listener_kwargs)
self.listener_id = listener[const.ID]
waiters.wait_for_status(self.mem_lb_client.show_loadbalancer,
self.lb_id, const.PROVISIONING_STATUS,
const.ACTIVE,
CONF.load_balancer.build_interval,
CONF.load_balancer.build_timeout)
pool_name = data_utils.rand_name("lb_member_pool1-spare")
pool_kwargs = {
const.NAME: pool_name,
const.PROTOCOL: const.HTTP,
const.LB_ALGORITHM: self.lb_algorithm,
const.LISTENER_ID: self.listener_id,
}
pool = self.mem_pool_client.create_pool(**pool_kwargs)
self.pool_id = pool[const.ID]
waiters.wait_for_status(self.mem_lb_client.show_loadbalancer,
self.lb_id, const.PROVISIONING_STATUS,
const.ACTIVE,
CONF.load_balancer.build_interval,
CONF.load_balancer.build_timeout)
# Set up Member 1 for Webserver 1
member1_name = data_utils.rand_name("lb_member_member1-spare")
member1_kwargs = {
const.POOL_ID: self.pool_id,
const.NAME: member1_name,
const.ADMIN_STATE_UP: True,
const.ADDRESS: self.webserver1_ip,
const.PROTOCOL_PORT: 80,
}
if self.lb_member_1_subnet:
member1_kwargs[const.SUBNET_ID] = self.lb_member_1_subnet[const.ID]
self.mem_member_client.create_member(**member1_kwargs)
waiters.wait_for_status(
self.mem_lb_client.show_loadbalancer, self.lb_id,
const.PROVISIONING_STATUS, const.ACTIVE,
CONF.load_balancer.check_interval,
CONF.load_balancer.check_timeout)
# Set up Member 2 for Webserver 2
member2_name = data_utils.rand_name("lb_member_member2-spare")
member2_kwargs = {
const.POOL_ID: self.pool_id,
const.NAME: member2_name,
const.ADMIN_STATE_UP: True,
const.ADDRESS: self.webserver2_ip,
const.PROTOCOL_PORT: 80,
}
if self.lb_member_2_subnet:
member2_kwargs[const.SUBNET_ID] = self.lb_member_2_subnet[const.ID]
self.mem_member_client.create_member(**member2_kwargs)
waiters.wait_for_status(
self.mem_lb_client.show_loadbalancer, self.lb_id,
const.PROVISIONING_STATUS, const.ACTIVE,
CONF.load_balancer.check_interval,
CONF.load_balancer.check_timeout)
# Send some traffic
self.check_members_balanced(self.lb_vip_address)
# Check there is at least one amphora in spare pool
spare_amps = waiters.wait_for_spare_amps(
amphora_client.list_amphorae,
CONF.load_balancer.lb_build_interval,
CONF.load_balancer.lb_build_timeout)
# Delete amphora compute instance
amp = amphora_client.list_amphorae(
query_params='{loadbalancer_id}={lb_id}'.format(
loadbalancer_id=const.LOADBALANCER_ID, lb_id=self.lb_id))
self.os_admin_servers_client.delete_server(amp[0][const.COMPUTE_ID])
# Wait for the amphora failover to start
waiters.wait_for_status(
self.mem_lb_client.show_loadbalancer,
self.lb_id, const.PROVISIONING_STATUS,
const.PENDING_UPDATE, CONF.load_balancer.check_interval,
CONF.load_balancer.check_timeout)
# Wait for the load balancer to return to ACTIVE so the
# cleanup steps will pass
waiters.wait_for_status(
self.mem_lb_client.show_loadbalancer,
self.lb_id, const.PROVISIONING_STATUS,
const.ACTIVE, CONF.load_balancer.lb_build_interval,
CONF.load_balancer.lb_build_timeout)
# Send some traffic
self.check_members_balanced(self.lb_vip_address)
# Confirm the spare pool has changed since last check
spare_amps_2 = waiters.wait_for_spare_amps(
amphora_client.list_amphorae,
CONF.load_balancer.lb_build_interval,
CONF.load_balancer.lb_build_timeout)
self.assertNotEqual(spare_amps, spare_amps_2)
# Check there is at least one amphora in spare pool
waiters.wait_for_spare_amps(amphora_client.list_amphorae,
CONF.load_balancer.lb_build_interval,
CONF.load_balancer.lb_build_timeout)
