Add Octavia compute node failover fault test
This patch adds a compute node failover test, as it reboots the Octavia amphora's compute node and sends traffic to verify the Octavia's functionality. Change-Id: I7ca1a63d46af3107c79edd768aee6f3bff8c2b82
This commit is contained in:
Omer
Federico Ressi
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17d8edde80
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# Copyright (c) 2021 Red Hat
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# All Rights Reserved.
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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 __future__ import absolute_import
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import testtools
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from oslo_log import log
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import tobiko
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from tobiko.openstack import keystone
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from tobiko.openstack import octavia
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from tobiko.openstack import stacks
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from tobiko.shell import sh
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LOG = log.getLogger(__name__)
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@keystone.skip_if_missing_service(name='octavia')
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class OctaviaBasicFaultTest(testtools.TestCase):
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"""Octavia fault scenario test.
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Create a load balancer with 2 members that run a server application,
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Create a client that is connected to the load balancer VIP port,
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Generate network traffic from the client to the load balanacer VIP.
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Restart the amphora's compute node to create a failover.
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Reach the members to make sure they are ready to be checked.
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Generate network traffic again to verify Octavia functionality.
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"""
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loadbalancer_stack = tobiko.required_setup_fixture(
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stacks.OctaviaLoadbalancerStackFixture)
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listener_stack = tobiko.required_setup_fixture(
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stacks.OctaviaListenerStackFixture)
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pool_stack = tobiko.required_setup_fixture(
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stacks.OctaviaPoolStackFixture)
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member1_stack = tobiko.required_setup_fixture(
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stacks.OctaviaMemberServerStackFixture)
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member2_stack = tobiko.required_setup_fixture(
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stacks.OctaviaOtherMemberServerStackFixture)
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client_stack = tobiko.required_setup_fixture(
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stacks.OctaviaClientServerStackFixture)
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members_count = 2
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def setUp(self):
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# pylint: disable=no-member
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super(OctaviaBasicFaultTest, self).setUp()
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# Skipping the test in case the topology is Active/Standby
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if len(octavia.list_amphorae(
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self.loadbalancer_stack.loadbalancer_id)) > 1:
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tobiko.skip_test('Fault tests to Active/Standby topology were not'
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' implemented yet')
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# Wait for Octavia objects to be active
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octavia.wait_for_active_members_and_lb(
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members=[self.member1_stack.member_id,
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self.member2_stack.member_id],
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pool_id=self.pool_stack.pool_id,
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loadbalancer_id=self.loadbalancer_stack.loadbalancer_id)
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# Send traffic
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octavia.check_members_balanced(
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self.pool_stack, self.client_stack, self.members_count,
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self.loadbalancer_stack.loadbalancer_vip,
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self.listener_stack.lb_protocol, self.listener_stack.lb_port)
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def test_reboot_amphora_compute_node(self):
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amphora_compute_hosts = octavia.get_amphoras_compute_nodes(
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self.loadbalancer_stack.loadbalancer_id)
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LOG.debug('Rebooting compute node...')
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# Reboot Amphora's compute node will initiate a failover
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amphora_compute_hosts[0].reboot_overcloud_node()
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LOG.debug('Compute node has been rebooted')
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# Wait for LB to be updated and active
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octavia.wait_for_lb_to_be_updated_and_active(
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self.loadbalancer_stack.loadbalancer_id)
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LOG.debug(f'Load Balancer {self.loadbalancer_stack.loadbalancer_id} is'
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f' ACTIVE')
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# Wait for Octavia objects' provisioning status to be ACTIVE
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octavia.wait_for_active_members_and_lb(
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members=[self.member1_stack.member_id,
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self.member2_stack.member_id],
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pool_id=self.pool_stack.pool_id,
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loadbalancer_id=self.loadbalancer_stack.loadbalancer_id)
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# Reach members before verifying Octavia functionality
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curl_member = "curl -f --connect-timeout 2 -g "
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sh.ssh_execute(
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self.client_stack.ssh_client,
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f'{curl_member} + {self.member1_stack.server_stack.ip_address}')
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sh.ssh_execute(
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self.client_stack.ssh_client,
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f'{curl_member} + {self.member2_stack.server_stack.ip_address}')
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# Verify Octavia functionality
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octavia.check_members_balanced(
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self.pool_stack, self.client_stack, self.members_count,
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self.loadbalancer_stack.loadbalancer_vip,
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self.listener_stack.lb_protocol, self.listener_stack.lb_port)
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