OpenStack Testing (Tempest) of an existing cloud
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# Copyright 2014 IBM Corp.
# 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 testtools
from oslo_log import log
from tempest.common import utils
from tempest.common.utils import net_downtime
from tempest.common import waiters
from tempest import config
from tempest.lib import decorators
from tempest.scenario import manager
CONF = config.CONF
LOG = log.getLogger(__name__)
class TestNetworkAdvancedServerOps(manager.NetworkScenarioTest):
"""Check VM connectivity after some advanced instance operations executed:
* Stop/Start an instance
* Reboot an instance
* Rebuild an instance
* Pause/Unpause an instance
* Suspend/Resume an instance
* Resize an instance
"""
@classmethod
def setup_clients(cls):
super(TestNetworkAdvancedServerOps, cls).setup_clients()
cls.admin_servers_client = cls.os_admin.servers_client
@classmethod
def skip_checks(cls):
super(TestNetworkAdvancedServerOps, cls).skip_checks()
if not (CONF.network.project_networks_reachable or
CONF.network.public_network_id):
msg = ('Either project_networks_reachable must be "true", or '
'public_network_id must be defined.')
raise cls.skipException(msg)
if not CONF.network_feature_enabled.floating_ips:
raise cls.skipException("Floating ips are not available")
@classmethod
def setup_credentials(cls):
# Create no network resources for these tests.
cls.set_network_resources()
super(TestNetworkAdvancedServerOps, cls).setup_credentials()
def _setup_server(self, keypair):
security_groups = []
if utils.is_extension_enabled('security-group', 'network'):
security_group = self.create_security_group()
security_groups = [{'name': security_group['name']}]
network, _, _ = self.setup_network_subnet_with_router()
server = self.create_server(
networks=[{'uuid': network['id']}],
key_name=keypair['name'],
security_groups=security_groups)
return server
def _setup_network(self, server, keypair):
public_network_id = CONF.network.public_network_id
floating_ip = self.create_floating_ip(server, public_network_id)
# Verify that we can indeed connect to the server before we mess with
# it's state
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
return floating_ip
def _check_network_connectivity(self, server, keypair, floating_ip,
should_connect=True,
username=CONF.validation.image_ssh_user):
private_key = keypair['private_key']
self.check_tenant_network_connectivity(
server, username, private_key,
should_connect=should_connect,
servers_for_debug=[server])
floating_ip_addr = floating_ip['floating_ip_address']
# Check FloatingIP status before checking the connectivity
self.check_floating_ip_status(floating_ip, 'ACTIVE')
self.check_vm_connectivity(floating_ip_addr, username,
private_key, should_connect,
'Public network connectivity check failed',
server)
def _wait_server_status_and_check_network_connectivity(
self, server, keypair, floating_ip,
username=CONF.validation.image_ssh_user):
waiters.wait_for_server_status(self.servers_client, server['id'],
'ACTIVE')
self._check_network_connectivity(server, keypair, floating_ip,
username=username)
@decorators.idempotent_id('61f1aa9a-1573-410e-9054-afa557cab021')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_stop_start(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
self.servers_client.stop_server(server['id'])
waiters.wait_for_server_status(self.servers_client, server['id'],
'SHUTOFF')
self._check_network_connectivity(server, keypair, floating_ip,
should_connect=False)
self.servers_client.start_server(server['id'])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
@decorators.idempotent_id('7b6860c2-afa3-4846-9522-adeb38dfbe08')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_reboot(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
self.servers_client.reboot_server(server['id'], type='SOFT')
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
@decorators.idempotent_id('88a529c2-1daa-4c85-9aec-d541ba3eb699')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_rebuild(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
image_ref_alt = CONF.compute.image_ref_alt
username_alt = CONF.validation.image_alt_ssh_user
self.servers_client.rebuild_server(server['id'],
image_ref=image_ref_alt)
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip, username_alt)
@decorators.idempotent_id('2b2642db-6568-4b35-b812-eceed3fa20ce')
@testtools.skipUnless(CONF.compute_feature_enabled.pause,
'Pause is not available.')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_pause_unpause(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
self.servers_client.pause_server(server['id'])
waiters.wait_for_server_status(self.servers_client, server['id'],
'PAUSED')
self._check_network_connectivity(server, keypair, floating_ip,
should_connect=False)
self.servers_client.unpause_server(server['id'])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
@decorators.idempotent_id('5cdf9499-541d-4923-804e-b9a60620a7f0')
@testtools.skipUnless(CONF.compute_feature_enabled.suspend,
'Suspend is not available.')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_suspend_resume(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
self.servers_client.suspend_server(server['id'])
waiters.wait_for_server_status(self.servers_client, server['id'],
'SUSPENDED')
self._check_network_connectivity(server, keypair, floating_ip,
should_connect=False)
self.servers_client.resume_server(server['id'])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
@decorators.idempotent_id('719eb59d-2f42-4b66-b8b1-bb1254473967')
@testtools.skipUnless(CONF.compute_feature_enabled.resize,
'Resize is not available.')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_resize(self):
resize_flavor = CONF.compute.flavor_ref_alt
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
self.servers_client.resize_server(server['id'],
flavor_ref=resize_flavor)
waiters.wait_for_server_status(self.servers_client, server['id'],
'VERIFY_RESIZE')
self.servers_client.confirm_resize_server(server['id'])
server = self.servers_client.show_server(server['id'])['server']
# Nova API > 2.46 no longer includes flavor.id, and schema check
# will cover whether 'id' should be in flavor
if server['flavor'].get('id'):
self.assertEqual(resize_flavor, server['flavor']['id'])
else:
flavor = self.flavors_client.show_flavor(resize_flavor)['flavor']
self.assertEqual(flavor['name'], server['original_name'])
for key in ['ram', 'vcpus', 'disk']:
self.assertEqual(flavor[key], server['flavor'][key])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
@decorators.idempotent_id('a4858f6c-401e-4155-9a49-d5cd053d1a2f')
@testtools.skipUnless(CONF.compute_feature_enabled.cold_migration,
'Cold migration is not available.')
@testtools.skipUnless(CONF.compute.min_compute_nodes > 1,
'Less than 2 compute nodes, skipping multinode '
'tests.')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_cold_migration(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
src_host = self.get_host_for_server(server['id'])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
self.admin_servers_client.migrate_server(server['id'])
waiters.wait_for_server_status(self.servers_client, server['id'],
'VERIFY_RESIZE')
self.servers_client.confirm_resize_server(server['id'])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
dst_host = self.get_host_for_server(server['id'])
self.assertNotEqual(src_host, dst_host)
@decorators.idempotent_id('03fd1562-faad-11e7-9ea0-fa163e65f5ce')
@testtools.skipUnless(CONF.compute_feature_enabled.live_migration,
'Live migration is not available.')
@testtools.skipUnless(CONF.compute.min_compute_nodes > 1,
'Less than 2 compute nodes, skipping multinode '
'tests.')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_live_migration(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
block_migration = (CONF.compute_feature_enabled.
block_migration_for_live_migration)
old_host = self.get_host_for_server(server['id'])
downtime_meter = net_downtime.NetDowntimeMeter(
floating_ip['floating_ip_address'])
self.useFixture(downtime_meter)
self.admin_servers_client.live_migrate_server(
server['id'], host=None, block_migration=block_migration,
disk_over_commit=False)
waiters.wait_for_server_status(self.servers_client,
server['id'], 'ACTIVE')
new_host = self.get_host_for_server(server['id'])
self.assertNotEqual(old_host, new_host, 'Server did not migrate')
downtime = downtime_meter.get_downtime()
self.assertIsNotNone(downtime)
LOG.debug("Downtime seconds measured with downtime_meter = %r",
downtime)
allowed_downtime = CONF.validation.allowed_network_downtime
self.assertLess(
downtime, allowed_downtime,
"Downtime of {} seconds is higher than expected '{}'".format(
downtime, allowed_downtime))
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
@decorators.idempotent_id('25b188d7-0183-4b1e-a11d-15840c8e2fd6')
@testtools.skipUnless(CONF.compute_feature_enabled.cold_migration,
'Cold migration is not available.')
@testtools.skipUnless(CONF.compute.min_compute_nodes > 1,
'Less than 2 compute nodes, skipping multinode '
'tests.')
@decorators.attr(type='slow')
@utils.services('compute', 'network')
def test_server_connectivity_cold_migration_revert(self):
keypair = self.create_keypair()
server = self._setup_server(keypair)
floating_ip = self._setup_network(server, keypair)
src_host = self.get_host_for_server(server['id'])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
self.admin_servers_client.migrate_server(server['id'])
waiters.wait_for_server_status(self.servers_client, server['id'],
'VERIFY_RESIZE')
self.servers_client.revert_resize_server(server['id'])
self._wait_server_status_and_check_network_connectivity(
server, keypair, floating_ip)
dst_host = self.get_host_for_server(server['id'])
self.assertEqual(src_host, dst_host)