OpenStack Compute (Nova)
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# 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 copy
import os
import fixtures
import mock
import os_resource_classes as orc
import os_traits
from oslo_utils.fixture import uuidsentinel as uuids
import yaml
from nova.compute import power_state
from nova.compute import resource_tracker
from nova.compute import task_states
from nova.compute import utils as compute_utils
from nova.compute import vm_states
from nova import conf
from nova import context
from nova import objects
from nova import test
from nova.tests import fixtures as nova_fixtures
from nova.tests.functional import fixtures as func_fixtures
from nova.tests.functional import integrated_helpers
from nova.virt import driver as virt_driver
CONF = conf.CONF
VCPU = orc.VCPU
MEMORY_MB = orc.MEMORY_MB
DISK_GB = orc.DISK_GB
COMPUTE_HOST = 'compute-host'
class IronicResourceTrackerTest(test.TestCase):
"""Tests the behaviour of the resource tracker with regards to the
transitional period between adding support for custom resource classes in
the placement API and integrating inventory and allocation records for
Ironic baremetal nodes with those custom resource classes.
"""
FLAVOR_FIXTURES = {
'CUSTOM_SMALL_IRON': objects.Flavor(
name='CUSTOM_SMALL_IRON',
flavorid=42,
vcpus=4,
memory_mb=4096,
root_gb=1024,
swap=0,
ephemeral_gb=0,
extra_specs={},
),
'CUSTOM_BIG_IRON': objects.Flavor(
name='CUSTOM_BIG_IRON',
flavorid=43,
vcpus=16,
memory_mb=65536,
root_gb=1024,
swap=0,
ephemeral_gb=0,
extra_specs={},
),
}
COMPUTE_NODE_FIXTURES = {
uuids.cn1: objects.ComputeNode(
uuid=uuids.cn1,
hypervisor_hostname='cn1',
hypervisor_type='ironic',
hypervisor_version=0,
cpu_info="",
host=COMPUTE_HOST,
vcpus=4,
vcpus_used=0,
cpu_allocation_ratio=1.0,
memory_mb=4096,
memory_mb_used=0,
ram_allocation_ratio=1.0,
local_gb=1024,
local_gb_used=0,
disk_allocation_ratio=1.0,
),
uuids.cn2: objects.ComputeNode(
uuid=uuids.cn2,
hypervisor_hostname='cn2',
hypervisor_type='ironic',
hypervisor_version=0,
cpu_info="",
host=COMPUTE_HOST,
vcpus=4,
vcpus_used=0,
cpu_allocation_ratio=1.0,
memory_mb=4096,
memory_mb_used=0,
ram_allocation_ratio=1.0,
local_gb=1024,
local_gb_used=0,
disk_allocation_ratio=1.0,
),
uuids.cn3: objects.ComputeNode(
uuid=uuids.cn3,
hypervisor_hostname='cn3',
hypervisor_type='ironic',
hypervisor_version=0,
cpu_info="",
host=COMPUTE_HOST,
vcpus=16,
vcpus_used=0,
cpu_allocation_ratio=1.0,
memory_mb=65536,
memory_mb_used=0,
ram_allocation_ratio=1.0,
local_gb=2048,
local_gb_used=0,
disk_allocation_ratio=1.0,
),
}
INSTANCE_FIXTURES = {
uuids.instance1: objects.Instance(
uuid=uuids.instance1,
flavor=FLAVOR_FIXTURES['CUSTOM_SMALL_IRON'],
vm_state=vm_states.BUILDING,
task_state=task_states.SPAWNING,
power_state=power_state.RUNNING,
project_id='project',
user_id=uuids.user,
),
}
def _set_client(self, client):
"""Set up embedded report clients to use the direct one from the
interceptor.
"""
self.report_client = client
self.rt.reportclient = client
def setUp(self):
super(IronicResourceTrackerTest, self).setUp()
self.flags(
reserved_host_memory_mb=0,
cpu_allocation_ratio=1.0,
ram_allocation_ratio=1.0,
disk_allocation_ratio=1.0,
)
self.ctx = context.RequestContext('user', 'project')
driver = mock.MagicMock(autospec=virt_driver.ComputeDriver)
driver.node_is_available.return_value = True
def fake_upt(provider_tree, nodename, allocations=None):
inventory = {
'CUSTOM_SMALL_IRON': {
'total': 1,
'reserved': 0,
'min_unit': 1,
'max_unit': 1,
'step_size': 1,
'allocation_ratio': 1.0,
},
}
provider_tree.update_inventory(nodename, inventory)
driver.update_provider_tree.side_effect = fake_upt
self.driver_mock = driver
self.rt = resource_tracker.ResourceTracker(COMPUTE_HOST, driver)
self.instances = self.create_fixtures()
def create_fixtures(self):
for flavor in self.FLAVOR_FIXTURES.values():
# Clone the object so the class variable isn't
# modified by reference.
flavor = flavor.obj_clone()
flavor._context = self.ctx
flavor.obj_set_defaults()
flavor.create()
# We create some compute node records in the Nova cell DB to simulate
# data before adding integration for Ironic baremetal nodes with the
# placement API...
for cn in self.COMPUTE_NODE_FIXTURES.values():
# Clone the object so the class variable isn't
# modified by reference.
cn = cn.obj_clone()
cn._context = self.ctx
cn.obj_set_defaults()
cn.create()
instances = {}
for instance in self.INSTANCE_FIXTURES.values():
# Clone the object so the class variable isn't
# modified by reference.
instance = instance.obj_clone()
instance._context = self.ctx
instance.obj_set_defaults()
instance.create()
instances[instance.uuid] = instance
return instances
@mock.patch('nova.compute.utils.is_volume_backed_instance',
new=mock.Mock(return_value=False))
@mock.patch('nova.objects.compute_node.ComputeNode.save', new=mock.Mock())
def test_node_stats_isolation(self):
"""Regression test for bug 1784705 introduced in Ocata.
The ResourceTracker.stats field is meant to track per-node stats
so this test registers three compute nodes with a single RT where
each node has unique stats, and then makes sure that after updating
usage for an instance, the nodes still have their unique stats and
nothing is leaked from node to node.
"""
self.useFixture(func_fixtures.PlacementFixture())
# Before the resource tracker is "initialized", we shouldn't have
# any compute nodes or stats in the RT's cache...
self.assertEqual(0, len(self.rt.compute_nodes))
self.assertEqual(0, len(self.rt.stats))
# Now "initialize" the resource tracker. This is what
# nova.compute.manager.ComputeManager does when "initializing" the
# nova-compute service. Do this in a predictable order so cn1 is
# first and cn3 is last.
for cn in sorted(self.COMPUTE_NODE_FIXTURES.values(),
key=lambda _cn: _cn.hypervisor_hostname):
nodename = cn.hypervisor_hostname
# Fake that each compute node has unique extra specs stats and
# the RT makes sure those are unique per node.
stats = {'node:%s' % nodename: nodename}
self.driver_mock.get_available_resource.return_value = {
'hypervisor_hostname': nodename,
'hypervisor_type': 'ironic',
'hypervisor_version': 0,
'vcpus': cn.vcpus,
'vcpus_used': cn.vcpus_used,
'memory_mb': cn.memory_mb,
'memory_mb_used': cn.memory_mb_used,
'local_gb': cn.local_gb,
'local_gb_used': cn.local_gb_used,
'numa_topology': None,
'resource_class': None, # Act like admin hasn't set yet...
'stats': stats,
}
self.rt.update_available_resource(self.ctx, nodename)
self.assertEqual(3, len(self.rt.compute_nodes))
self.assertEqual(3, len(self.rt.stats))
def _assert_stats():
# Make sure each compute node has a unique set of stats and
# they don't accumulate across nodes.
for _cn in self.rt.compute_nodes.values():
node_stats_key = 'node:%s' % _cn.hypervisor_hostname
self.assertIn(node_stats_key, _cn.stats)
node_stat_count = 0
for stat in _cn.stats:
if stat.startswith('node:'):
node_stat_count += 1
self.assertEqual(1, node_stat_count, _cn.stats)
_assert_stats()
# Now "spawn" an instance to the first compute node by calling the
# RT's instance_claim().
cn1_obj = self.COMPUTE_NODE_FIXTURES[uuids.cn1]
cn1_nodename = cn1_obj.hypervisor_hostname
inst = self.instances[uuids.instance1]
with self.rt.instance_claim(self.ctx, inst, cn1_nodename, {}):
_assert_stats()
class TestUpdateComputeNodeReservedAndAllocationRatio(
integrated_helpers.ProviderUsageBaseTestCase):
"""Tests reflecting reserved and allocation ratio inventory from
nova-compute to placement
"""
compute_driver = 'fake.FakeDriver'
@staticmethod
def _get_reserved_host_values_from_config():
return {
'VCPU': CONF.reserved_host_cpus,
'MEMORY_MB': CONF.reserved_host_memory_mb,
'DISK_GB': compute_utils.convert_mb_to_ceil_gb(
CONF.reserved_host_disk_mb)
}
def _assert_reserved_inventory(self, inventories):
reserved = self._get_reserved_host_values_from_config()
for rc, res in reserved.items():
self.assertIn('reserved', inventories[rc])
self.assertEqual(res, inventories[rc]['reserved'],
'Unexpected resource provider inventory '
'reserved value for %s' % rc)
def test_update_inventory_reserved_and_allocation_ratio_from_conf(self):
# Start a compute service which should create a corresponding resource
# provider in the placement service.
compute_service = self._start_compute('fake-host')
# Assert the compute node resource provider exists in placement with
# the default reserved and allocation ratio values from config.
rp_uuid = self._get_provider_uuid_by_host('fake-host')
inventories = self._get_provider_inventory(rp_uuid)
# The default allocation ratio config values are all 0.0 and get
# defaulted to real values in the ComputeNode object, so we need to
# check our defaults against what is in the ComputeNode object.
ctxt = context.get_admin_context()
# Note that the CellDatabases fixture usage means we don't need to
# target the context to cell1 even though the compute_nodes table is
# in the cell1 database.
cn = objects.ComputeNode.get_by_uuid(ctxt, rp_uuid)
ratios = {
'VCPU': cn.cpu_allocation_ratio,
'MEMORY_MB': cn.ram_allocation_ratio,
'DISK_GB': cn.disk_allocation_ratio
}
for rc, ratio in ratios.items():
self.assertIn(rc, inventories)
self.assertIn('allocation_ratio', inventories[rc])
self.assertEqual(ratio, inventories[rc]['allocation_ratio'],
'Unexpected allocation ratio for %s' % rc)
self._assert_reserved_inventory(inventories)
# Now change the configuration values, restart the compute service,
# and ensure the changes are reflected in the resource provider
# inventory records. We use 2.0 since disk_allocation_ratio defaults
# to 1.0.
self.flags(cpu_allocation_ratio=2.0)
self.flags(ram_allocation_ratio=2.0)
self.flags(disk_allocation_ratio=2.0)
self.flags(reserved_host_cpus=2)
self.flags(reserved_host_memory_mb=1024)
self.flags(reserved_host_disk_mb=8192)
self.restart_compute_service(compute_service)
# The ratios should now come from config overrides rather than the
# defaults in the ComputeNode object.
ratios = {
'VCPU': CONF.cpu_allocation_ratio,
'MEMORY_MB': CONF.ram_allocation_ratio,
'DISK_GB': CONF.disk_allocation_ratio
}
attr_map = {
'VCPU': 'cpu',
'MEMORY_MB': 'ram',
'DISK_GB': 'disk',
}
cn = objects.ComputeNode.get_by_uuid(ctxt, rp_uuid)
inventories = self._get_provider_inventory(rp_uuid)
for rc, ratio in ratios.items():
# Make sure the config is what we expect.
self.assertEqual(2.0, ratio,
'Unexpected config allocation ratio for %s' % rc)
# Make sure the values in the DB are updated.
self.assertEqual(
ratio, getattr(cn, '%s_allocation_ratio' % attr_map[rc]),
'Unexpected ComputeNode allocation ratio for %s' % rc)
# Make sure the values in placement are updated.
self.assertEqual(ratio, inventories[rc]['allocation_ratio'],
'Unexpected resource provider inventory '
'allocation ratio for %s' % rc)
# The reserved host values should also come from config.
self._assert_reserved_inventory(inventories)
def test_allocation_ratio_create_with_initial_allocation_ratio(self):
# The xxx_allocation_ratio is set to None by default, and we use
# 16.1/1.6/1.1 since disk_allocation_ratio defaults to 16.0/1.5/1.0.
self.flags(initial_cpu_allocation_ratio=16.1)
self.flags(initial_ram_allocation_ratio=1.6)
self.flags(initial_disk_allocation_ratio=1.1)
# Start a compute service which should create a corresponding resource
# provider in the placement service.
self._start_compute('fake-host')
# Assert the compute node resource provider exists in placement with
# the default reserved and allocation ratio values from config.
rp_uuid = self._get_provider_uuid_by_host('fake-host')
inventories = self._get_provider_inventory(rp_uuid)
ctxt = context.get_admin_context()
# Note that the CellDatabases fixture usage means we don't need to
# target the context to cell1 even though the compute_nodes table is
# in the cell1 database.
cn = objects.ComputeNode.get_by_uuid(ctxt, rp_uuid)
ratios = {
'VCPU': cn.cpu_allocation_ratio,
'MEMORY_MB': cn.ram_allocation_ratio,
'DISK_GB': cn.disk_allocation_ratio
}
initial_ratio_conf = {
'VCPU': CONF.initial_cpu_allocation_ratio,
'MEMORY_MB': CONF.initial_ram_allocation_ratio,
'DISK_GB': CONF.initial_disk_allocation_ratio
}
for rc, ratio in ratios.items():
self.assertIn(rc, inventories)
self.assertIn('allocation_ratio', inventories[rc])
# Check the allocation_ratio values come from the new
# CONF.initial_xxx_allocation_ratio
self.assertEqual(initial_ratio_conf[rc], ratio,
'Unexpected allocation ratio for %s' % rc)
# Check the initial allocation ratio is updated to inventories
self.assertEqual(ratio, inventories[rc]['allocation_ratio'],
'Unexpected allocation ratio for %s' % rc)
def test_allocation_ratio_overwritten_from_config(self):
# NOTE(yikun): This test case includes below step:
# 1. Overwrite the allocation_ratio via the placement API directly -
# run the RT.update_available_resource periodic and assert the
# allocation ratios are not overwritten from config.
#
# 2. Set the CONF.*_allocation_ratio, run the periodic, and assert
# that the config overwrites what was set via the placement API.
compute_service = self._start_compute('fake-host')
rp_uuid = self._get_provider_uuid_by_host('fake-host')
ctxt = context.get_admin_context()
rt = compute_service.manager.rt
inv = self.placement.get(
'/resource_providers/%s/inventories' % rp_uuid).body
ratios = {'VCPU': 16.1, 'MEMORY_MB': 1.6, 'DISK_GB': 1.1}
for rc, ratio in ratios.items():
inv['inventories'][rc]['allocation_ratio'] = ratio
# Overwrite the allocation_ratio via the placement API directly
self._update_inventory(rp_uuid, inv)
inv = self._get_provider_inventory(rp_uuid)
# Check inventories is updated to ratios
for rc, ratio in ratios.items():
self.assertIn(rc, inv)
self.assertIn('allocation_ratio', inv[rc])
self.assertEqual(ratio, inv[rc]['allocation_ratio'],
'Unexpected allocation ratio for %s' % rc)
# Make sure xxx_allocation_ratio is None by default
self.assertIsNone(CONF.cpu_allocation_ratio)
self.assertIsNone(CONF.ram_allocation_ratio)
self.assertIsNone(CONF.disk_allocation_ratio)
# run the RT.update_available_resource periodic
rt.update_available_resource(ctxt, 'fake-host')
# assert the allocation ratios are not overwritten from config
inv = self._get_provider_inventory(rp_uuid)
for rc, ratio in ratios.items():
self.assertIn(rc, inv)
self.assertIn('allocation_ratio', inv[rc])
self.assertEqual(ratio, inv[rc]['allocation_ratio'],
'Unexpected allocation ratio for %s' % rc)
# set the CONF.*_allocation_ratio
self.flags(cpu_allocation_ratio=15.9)
self.flags(ram_allocation_ratio=1.4)
self.flags(disk_allocation_ratio=0.9)
# run the RT.update_available_resource periodic
rt.update_available_resource(ctxt, 'fake-host')
inv = self._get_provider_inventory(rp_uuid)
ratios = {
'VCPU': CONF.cpu_allocation_ratio,
'MEMORY_MB': CONF.ram_allocation_ratio,
'DISK_GB': CONF.disk_allocation_ratio
}
# assert that the config overwrites what was set via the placement API.
for rc, ratio in ratios.items():
self.assertIn(rc, inv)
self.assertIn('allocation_ratio', inv[rc])
self.assertEqual(ratio, inv[rc]['allocation_ratio'],
'Unexpected allocation ratio for %s' % rc)
class TestProviderConfig(integrated_helpers.ProviderUsageBaseTestCase):
"""Tests for adding inventories and traits to resource providers using
provider config files described in spec provider-config-file.
"""
compute_driver = 'fake.FakeDriver'
BASE_CONFIG = {
"meta": {
"schema_version": "1.0"
},
"providers": []
}
EMPTY_PROVIDER = {
"identification": {
},
"inventories": {
"additional": []
},
"traits": {
"additional": []
}
}
def setUp(self):
super().setUp()
# make a new temp dir and configure nova-compute to look for provider
# config files there
self.pconf_loc = self.useFixture(fixtures.TempDir()).path
self.flags(provider_config_location=self.pconf_loc, group='compute')
def _create_config_entry(self, id_value, id_method="uuid", cfg_file=None):
"""Adds an entry in the config file for the provider using the
requested identification method [uuid, name] with additional traits
and inventories.
"""
# if an existing config file was not passed, create a new one
if not cfg_file:
cfg_file = copy.deepcopy(self.BASE_CONFIG)
provider = copy.deepcopy(self.EMPTY_PROVIDER)
# create identification method
provider['identification'] = {id_method: id_value}
# create entries for additional traits and inventories using values
# unique to this provider entry
provider['inventories']['additional'].append({
orc.normalize_name(id_value): {
"total": 100,
"reserved": 0,
"min_unit": 1,
"max_unit": 10,
"step_size": 1,
"allocation_ratio": 1
}
})
provider['traits']['additional'].append(
os_traits.normalize_name(id_value))
# edit cfg_file in place, but return it in case this is the first call
cfg_file['providers'].append(provider)
return cfg_file
def _assert_inventory_and_traits(self, provider, config):
"""Asserts that the inventory and traits on the provider include those
defined in the provided config file. If the provider was identified
explicitly, also asserts that the $COMPUTE_NODE values are not included
on the provider.
Testing for specific inventory values is done in depth in unit tests
so here we are just checking for keys.
"""
# retrieve actual inventory and traits for the provider
actual_inventory = list(
self._get_provider_inventory(provider['uuid']).keys())
actual_traits = self._get_provider_traits(provider['uuid'])
# search config file data for expected inventory and traits
# since we also want to check for unexpected inventory,
# we also need to track compute node entries
expected_inventory, expected_traits = [], []
cn_expected_inventory, cn_expected_traits = [], []
for p_config in config['providers']:
_pid = p_config['identification']
# check for explicit uuid/name match
if _pid.get("uuid") == provider['uuid'] \
or _pid.get("name") == provider['name']:
expected_inventory = list(p_config.get(
"inventories", {}).get("additional", [])[0].keys())
expected_traits = p_config.get(
"traits", {}).get("additional", [])
# check for uuid==$COMPUTE_NODE match
elif _pid.get("uuid") == "$COMPUTE_NODE":
cn_expected_inventory = list(p_config.get(
"inventories", {}).get("additional", [])[0].keys())
cn_expected_traits = p_config.get(
"traits", {}).get("additional", [])
# if expected inventory or traits are found,
# test that they all exist in the actual inventory/traits
missing_inventory, missing_traits = None, None
unexpected_inventory, unexpected_traits = None, None
if expected_inventory or expected_traits:
missing_inventory = [key for key in expected_inventory
if key not in actual_inventory]
missing_traits = [key for key in expected_traits
if key not in actual_traits]
# if $COMPUTE_NODE values are also found,
# test that they do not exist
if cn_expected_inventory or cn_expected_traits:
unexpected_inventory = [
key for key in actual_inventory
if key in cn_expected_inventory and key
not in expected_inventory]
missing_traits = [
trait for trait in cn_expected_traits
if trait in actual_traits and trait
not in expected_traits]
# if no explicit values were found, test for $COMPUTE_NODE values
elif cn_expected_inventory or cn_expected_traits:
missing_inventory = [key for key in cn_expected_inventory
if key not in actual_inventory]
missing_traits = [trait for trait in cn_expected_traits
if trait not in actual_traits]
# if no values were found, the test is broken
else:
self.fail("No expected values were found, the test is broken.")
self.assertFalse(missing_inventory,
msg="Missing inventory: %s" % missing_inventory)
self.assertFalse(unexpected_inventory,
msg="Unexpected inventory: %s" % unexpected_inventory)
self.assertFalse(missing_traits,
msg="Missing traits: %s" % missing_traits)
self.assertFalse(unexpected_traits,
msg="Unexpected traits: %s" % unexpected_traits)
def _place_config_file(self, file_name, file_data):
"""Creates a file in the provider config directory using file_name and
dumps file_data to it in yaml format.
NOTE: The file name should end in ".yaml" for Nova to recognize and
load it.
"""
with open(os.path.join(self.pconf_loc, file_name), "w") as open_file:
yaml.dump(file_data, open_file)
def test_single_config_file(self):
"""Tests that additional inventories and traits defined for a provider
are applied to the correct provider.
"""
# create a config file with both explicit name and uuid=$COMPUTE_NODE
config = self._create_config_entry("fake-host", id_method="name")
self._place_config_file("provider_config1.yaml", config)
# start nova-compute
self._start_compute("fake-host")
# test that only inventory from the explicit entry exists
provider = self._get_resource_provider_by_uuid(
self._get_provider_uuid_by_host("fake-host"))
self._assert_inventory_and_traits(provider, config)
def test_multiple_config_files(self):
"""This performs the same test as test_single_config_file but splits
the configurations into separate files.
"""
# create a config file with uuid=$COMPUTE_NODE
config1 = self._create_config_entry("$COMPUTE_NODE", id_method="uuid")
self._place_config_file("provider_config1.yaml", config1)
# create a second config file with explicit name
config2 = self._create_config_entry("fake-host", id_method="name")
self._place_config_file("provider_config2.yaml", config2)
# start nova-compute
self._start_compute("fake-host")
# test that only inventory from the explicit entry exists
provider1 = self._get_resource_provider_by_uuid(
self._get_provider_uuid_by_host("fake-host"))
self._assert_inventory_and_traits(provider1, config2)
def test_multiple_compute_nodes(self):
"""This test mimics an ironic-like environment with multiple compute
nodes. Some nodes will be updated with the uuid=$COMPUTE_NODE provider
config entries and others will use explicit name matching.
"""
# get some uuids to use as compute host names
provider_names = [uuids.cn2, uuids.cn3, uuids.cn4,
uuids.cn5, uuids.cn6, uuids.cn7]
# create config file with $COMPUTE_NODE entry
config = self._create_config_entry("$COMPUTE_NODE", id_method="uuid")
# add three explicit name entries
for provider_name in provider_names[-3:]:
self._create_config_entry(provider_name, id_method="name",
cfg_file=config)
self._place_config_file("provider.yaml", config)
# start the compute services
for provider_name in provider_names:
self._start_compute(provider_name)
# test for expected inventory and traits on each provider
for provider_name in provider_names:
self._assert_inventory_and_traits(
self._get_resource_provider_by_uuid(
self._get_provider_uuid_by_host(provider_name)),
config)
def test_end_to_end(self):
"""This test emulates a full end to end test showing that without this
feature a vm cannot be spawning using a custom trait and then start a
compute service that provides that trait.
"""
self.useFixture(nova_fixtures.NeutronFixture(self))
self.useFixture(nova_fixtures.GlanceFixture(self))
# Start nova services.
self.api = self.useFixture(nova_fixtures.OSAPIFixture(
api_version='v2.1')).admin_api
self.api.microversion = 'latest'
self.start_service('conductor')
# start nova-compute that will not have the additional trait.
self._start_compute("fake-host-1")
node_name = "fake-host-2"
# create a config file with explicit name
provider_config = self._create_config_entry(
node_name, id_method="name")
self._place_config_file("provider_config.yaml", provider_config)
self._create_flavor(
name='CUSTOM_Flavor', id=42, vcpu=4, memory_mb=4096,
disk=1024, swap=0, extra_spec={
f"trait:{os_traits.normalize_name(node_name)}": "required"
})
self._create_server(
flavor_id=42, expected_state='ERROR',
networks=[{'port': self.neutron.port_1['id']}])
# start compute node that will report the custom trait.
self._start_compute("fake-host-2")
self._create_server(
flavor_id=42, expected_state='ACTIVE',
networks=[{'port': self.neutron.port_1['id']}])