1058 lines
39 KiB
Python
1058 lines
39 KiB
Python
# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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# Copyright (c) 2010 Citrix Systems, Inc.
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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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"""
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A fake (in-memory) hypervisor+api.
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Allows nova testing w/o a hypervisor. This module also documents the
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semantics of real hypervisor connections.
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"""
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import collections
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import contextlib
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import time
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import uuid
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import fixtures
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import os_resource_classes as orc
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from oslo_log import log as logging
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from oslo_serialization import jsonutils
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from oslo_utils import versionutils
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from nova.compute import power_state
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from nova.compute import task_states
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from nova.compute import vm_states
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import nova.conf
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from nova.console import type as ctype
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from nova import context as nova_context
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from nova import exception
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from nova import objects
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from nova.objects import diagnostics as diagnostics_obj
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from nova.objects import fields as obj_fields
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from nova.objects import migrate_data
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from nova.virt import driver
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from nova.virt import hardware
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from nova.virt.ironic import driver as ironic
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from nova.virt import virtapi
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CONF = nova.conf.CONF
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LOG = logging.getLogger(__name__)
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class FakeInstance(object):
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def __init__(self, name, state, uuid):
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self.name = name
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self.state = state
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self.uuid = uuid
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def __getitem__(self, key):
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return getattr(self, key)
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class Resources(object):
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vcpus = 0
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memory_mb = 0
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local_gb = 0
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vcpus_used = 0
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memory_mb_used = 0
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local_gb_used = 0
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def __init__(self, vcpus=8, memory_mb=8000, local_gb=500):
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self.vcpus = vcpus
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self.memory_mb = memory_mb
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self.local_gb = local_gb
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def claim(self, vcpus=0, mem=0, disk=0):
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self.vcpus_used += vcpus
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self.memory_mb_used += mem
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self.local_gb_used += disk
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def release(self, vcpus=0, mem=0, disk=0):
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self.vcpus_used -= vcpus
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self.memory_mb_used -= mem
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self.local_gb_used -= disk
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def dump(self):
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return {
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'vcpus': self.vcpus,
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'memory_mb': self.memory_mb,
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'local_gb': self.local_gb,
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'vcpus_used': self.vcpus_used,
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'memory_mb_used': self.memory_mb_used,
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'local_gb_used': self.local_gb_used
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}
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class FakeDriver(driver.ComputeDriver):
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# These must match the traits in
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# nova.tests.functional.integrated_helpers.ProviderUsageBaseTestCase
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capabilities = {
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"has_imagecache": True,
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"supports_evacuate": True,
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"supports_migrate_to_same_host": False,
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"supports_attach_interface": True,
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"supports_device_tagging": True,
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"supports_tagged_attach_interface": True,
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"supports_tagged_attach_volume": True,
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"supports_extend_volume": True,
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"supports_multiattach": True,
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"supports_trusted_certs": True,
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"supports_pcpus": False,
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"supports_accelerators": True,
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# Supported image types
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"supports_image_type_raw": True,
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"supports_image_type_vhd": False,
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}
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# Since we don't have a real hypervisor, pretend we have lots of
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# disk and ram so this driver can be used to test large instances.
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vcpus = 1000
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memory_mb = 800000
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local_gb = 600000
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"""Fake hypervisor driver."""
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def __init__(self, virtapi, read_only=False):
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super(FakeDriver, self).__init__(virtapi)
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self.instances = {}
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self.resources = Resources(
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vcpus=self.vcpus,
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memory_mb=self.memory_mb,
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local_gb=self.local_gb)
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self.host_status_base = {
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'hypervisor_type': 'fake',
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'hypervisor_version': versionutils.convert_version_to_int('1.0'),
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'hypervisor_hostname': CONF.host,
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'cpu_info': {},
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'disk_available_least': 0,
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'supported_instances': [(
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obj_fields.Architecture.X86_64,
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obj_fields.HVType.FAKE,
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obj_fields.VMMode.HVM)],
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'numa_topology': None,
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}
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self._mounts = {}
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self._interfaces = {}
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self.active_migrations = {}
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self._host = None
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self._nodes = None
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def init_host(self, host):
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self._host = host
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# NOTE(gibi): this is unnecessary complex and fragile but this is
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# how many current functional sample tests expect the node name.
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self._nodes = (['fake-mini'] if self._host == 'compute'
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else [self._host])
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def _set_nodes(self, nodes):
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# NOTE(gibi): this is not part of the driver interface but used
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# by our tests to customize the discovered nodes by the fake
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# driver.
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self._nodes = nodes
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def list_instances(self):
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return [self.instances[uuid].name for uuid in self.instances.keys()]
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def list_instance_uuids(self):
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return list(self.instances.keys())
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def plug_vifs(self, instance, network_info):
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"""Plug VIFs into networks."""
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pass
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def unplug_vifs(self, instance, network_info):
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"""Unplug VIFs from networks."""
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pass
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def spawn(self, context, instance, image_meta, injected_files,
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admin_password, allocations, network_info=None,
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block_device_info=None, power_on=True, accel_info=None):
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if network_info:
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for vif in network_info:
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# simulate a real driver triggering the async network
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# allocation as it might cause an error
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vif.fixed_ips()
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# store the vif as attached so we can allow detaching it later
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# with a detach_interface() call.
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self._interfaces[vif['id']] = vif
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uuid = instance.uuid
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state = power_state.RUNNING if power_on else power_state.SHUTDOWN
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flavor = instance.flavor
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self.resources.claim(
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vcpus=flavor.vcpus,
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mem=flavor.memory_mb,
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disk=flavor.root_gb)
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fake_instance = FakeInstance(instance.name, state, uuid)
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self.instances[uuid] = fake_instance
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def snapshot(self, context, instance, image_id, update_task_state):
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if instance.uuid not in self.instances:
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raise exception.InstanceNotRunning(instance_id=instance.uuid)
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update_task_state(task_state=task_states.IMAGE_UPLOADING)
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def reboot(self, context, instance, network_info, reboot_type,
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block_device_info=None, bad_volumes_callback=None,
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accel_info=None):
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# If the guest is not on the hypervisor and we're doing a hard reboot
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# then mimic the libvirt driver by spawning the guest.
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if (instance.uuid not in self.instances and
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reboot_type.lower() == 'hard'):
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injected_files = admin_password = allocations = None
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self.spawn(context, instance, instance.image_meta, injected_files,
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admin_password, allocations,
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block_device_info=block_device_info)
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else:
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# Just try to power on the guest.
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self.power_on(context, instance, network_info,
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block_device_info=block_device_info)
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def get_host_ip_addr(self):
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return '192.168.0.1'
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def set_admin_password(self, instance, new_pass):
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pass
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def resume_state_on_host_boot(self, context, instance, network_info,
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block_device_info=None):
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pass
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def rescue(self, context, instance, network_info, image_meta,
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rescue_password, block_device_info):
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pass
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def unrescue(
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self,
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context: nova_context.RequestContext,
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instance: 'objects.Instance',
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):
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self.instances[instance.uuid].state = power_state.RUNNING
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def poll_rebooting_instances(self, timeout, instances):
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pass
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def migrate_disk_and_power_off(self, context, instance, dest,
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flavor, network_info,
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block_device_info=None,
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timeout=0, retry_interval=0):
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pass
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def finish_revert_migration(self, context, instance, network_info,
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migration, block_device_info=None,
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power_on=True):
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state = power_state.RUNNING if power_on else power_state.SHUTDOWN
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self.instances[instance.uuid] = FakeInstance(
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instance.name, state, instance.uuid)
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def post_live_migration_at_destination(self, context, instance,
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network_info,
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block_migration=False,
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block_device_info=None):
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# Called from the destination host after a successful live migration
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# so spawn the instance on this host to track it properly.
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image_meta = injected_files = admin_password = allocations = None
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self.spawn(context, instance, image_meta, injected_files,
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admin_password, allocations)
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def power_off(self, instance, timeout=0, retry_interval=0):
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if instance.uuid in self.instances:
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self.instances[instance.uuid].state = power_state.SHUTDOWN
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else:
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raise exception.InstanceNotFound(instance_id=instance.uuid)
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def power_on(self, context, instance, network_info,
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block_device_info=None, accel_info=None):
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if instance.uuid in self.instances:
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self.instances[instance.uuid].state = power_state.RUNNING
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else:
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raise exception.InstanceNotFound(instance_id=instance.uuid)
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def trigger_crash_dump(self, instance):
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pass
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def soft_delete(self, instance):
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pass
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def restore(self, instance):
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pass
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def pause(self, instance):
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pass
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def unpause(self, instance):
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pass
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def suspend(self, context, instance):
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pass
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def resume(self, context, instance, network_info, block_device_info=None):
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pass
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def destroy(self, context, instance, network_info, block_device_info=None,
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destroy_disks=True, destroy_secrets=True):
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key = instance.uuid
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if key in self.instances:
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flavor = instance.flavor
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self.resources.release(
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vcpus=flavor.vcpus,
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mem=flavor.memory_mb,
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disk=flavor.root_gb)
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del self.instances[key]
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else:
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LOG.warning("Key '%(key)s' not in instances '%(inst)s'",
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{'key': key,
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'inst': self.instances}, instance=instance)
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def cleanup(self, context, instance, network_info, block_device_info=None,
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destroy_disks=True, migrate_data=None, destroy_vifs=True,
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destroy_secrets=True):
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# cleanup() should not be called when the guest has not been destroyed.
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if instance.uuid in self.instances:
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raise exception.InstanceExists(
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"Instance %s has not been destroyed." % instance.uuid)
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def attach_volume(self, context, connection_info, instance, mountpoint,
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disk_bus=None, device_type=None, encryption=None):
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"""Attach the disk to the instance at mountpoint using info."""
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instance_name = instance.name
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if instance_name not in self._mounts:
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self._mounts[instance_name] = {}
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self._mounts[instance_name][mountpoint] = connection_info
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def detach_volume(self, context, connection_info, instance, mountpoint,
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encryption=None):
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"""Detach the disk attached to the instance."""
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try:
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del self._mounts[instance.name][mountpoint]
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except KeyError:
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pass
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def swap_volume(self, context, old_connection_info, new_connection_info,
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instance, mountpoint, resize_to):
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"""Replace the disk attached to the instance."""
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instance_name = instance.name
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if instance_name not in self._mounts:
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self._mounts[instance_name] = {}
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self._mounts[instance_name][mountpoint] = new_connection_info
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def extend_volume(self, context, connection_info, instance,
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requested_size):
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"""Extend the disk attached to the instance."""
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pass
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def attach_interface(self, context, instance, image_meta, vif):
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if vif['id'] in self._interfaces:
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raise exception.InterfaceAttachFailed(
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instance_uuid=instance.uuid)
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self._interfaces[vif['id']] = vif
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def detach_interface(self, context, instance, vif):
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try:
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del self._interfaces[vif['id']]
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except KeyError:
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raise exception.InterfaceDetachFailed(
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instance_uuid=instance.uuid)
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def get_info(self, instance, use_cache=True):
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if instance.uuid not in self.instances:
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raise exception.InstanceNotFound(instance_id=instance.uuid)
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i = self.instances[instance.uuid]
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return hardware.InstanceInfo(state=i.state)
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def get_diagnostics(self, instance):
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return {'cpu0_time': 17300000000,
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'memory': 524288,
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'vda_errors': -1,
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'vda_read': 262144,
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'vda_read_req': 112,
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'vda_write': 5778432,
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'vda_write_req': 488,
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'vnet1_rx': 2070139,
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'vnet1_rx_drop': 0,
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'vnet1_rx_errors': 0,
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'vnet1_rx_packets': 26701,
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'vnet1_tx': 140208,
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'vnet1_tx_drop': 0,
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'vnet1_tx_errors': 0,
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'vnet1_tx_packets': 662,
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}
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def get_instance_diagnostics(self, instance):
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diags = diagnostics_obj.Diagnostics(
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state='running', driver='libvirt', hypervisor='kvm',
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hypervisor_os='ubuntu', uptime=46664, config_drive=True)
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diags.add_cpu(id=0, time=17300000000, utilisation=15)
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diags.add_nic(mac_address='01:23:45:67:89:ab',
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rx_octets=2070139,
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rx_errors=100,
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rx_drop=200,
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rx_packets=26701,
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rx_rate=300,
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tx_octets=140208,
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tx_errors=400,
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tx_drop=500,
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tx_packets = 662,
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tx_rate=600)
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diags.add_disk(read_bytes=262144,
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read_requests=112,
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write_bytes=5778432,
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write_requests=488,
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errors_count=1)
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diags.memory_details = diagnostics_obj.MemoryDiagnostics(
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maximum=524288, used=0)
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return diags
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def get_all_volume_usage(self, context, compute_host_bdms):
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"""Return usage info for volumes attached to vms on
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a given host.
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"""
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volusage = []
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if compute_host_bdms:
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volusage = [{'volume': compute_host_bdms[0][
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'instance_bdms'][0]['volume_id'],
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'instance': compute_host_bdms[0]['instance'],
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'rd_bytes': 0,
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'rd_req': 0,
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'wr_bytes': 0,
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'wr_req': 0}]
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return volusage
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def get_host_cpu_stats(self):
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stats = {'kernel': 5664160000000,
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'idle': 1592705190000000,
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'user': 26728850000000,
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'iowait': 6121490000000}
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stats['frequency'] = 800
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return stats
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def block_stats(self, instance, disk_id):
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return [0, 0, 0, 0, None]
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def get_console_output(self, context, instance):
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return 'FAKE CONSOLE OUTPUT\nANOTHER\nLAST LINE'
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def get_vnc_console(self, context, instance):
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return ctype.ConsoleVNC(internal_access_path='FAKE',
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host='fakevncconsole.com',
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port=6969)
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def get_spice_console(self, context, instance):
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return ctype.ConsoleSpice(internal_access_path='FAKE',
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host='fakespiceconsole.com',
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port=6969,
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tlsPort=6970)
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def get_rdp_console(self, context, instance):
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return ctype.ConsoleRDP(internal_access_path='FAKE',
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host='fakerdpconsole.com',
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port=6969)
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def get_serial_console(self, context, instance):
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return ctype.ConsoleSerial(internal_access_path='FAKE',
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host='fakerdpconsole.com',
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port=6969)
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def get_mks_console(self, context, instance):
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return ctype.ConsoleMKS(internal_access_path='FAKE',
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host='fakemksconsole.com',
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port=6969)
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def get_available_resource(self, nodename):
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"""Updates compute manager resource info on ComputeNode table.
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Since we don't have a real hypervisor, pretend we have lots of
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disk and ram.
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"""
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cpu_info = collections.OrderedDict([
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('arch', 'x86_64'),
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('model', 'Nehalem'),
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('vendor', 'Intel'),
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('features', ['pge', 'clflush']),
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('topology', {
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'cores': 1,
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'threads': 1,
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'sockets': 4,
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}),
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])
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if nodename not in self.get_available_nodes():
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return {}
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host_status = self.host_status_base.copy()
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host_status.update(self.resources.dump())
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host_status['hypervisor_hostname'] = nodename
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host_status['host_hostname'] = nodename
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host_status['host_name_label'] = nodename
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host_status['cpu_info'] = jsonutils.dumps(cpu_info)
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return host_status
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def update_provider_tree(self, provider_tree, nodename, allocations=None):
|
|
# NOTE(yikun): If the inv record does not exists, the allocation_ratio
|
|
# will use the CONF.xxx_allocation_ratio value if xxx_allocation_ratio
|
|
# is set, and fallback to use the initial_xxx_allocation_ratio
|
|
# otherwise.
|
|
inv = provider_tree.data(nodename).inventory
|
|
ratios = self._get_allocation_ratios(inv)
|
|
inventory = {
|
|
'VCPU': {
|
|
'total': self.vcpus,
|
|
'min_unit': 1,
|
|
'max_unit': self.vcpus,
|
|
'step_size': 1,
|
|
'allocation_ratio': ratios[orc.VCPU],
|
|
'reserved': CONF.reserved_host_cpus,
|
|
},
|
|
'MEMORY_MB': {
|
|
'total': self.memory_mb,
|
|
'min_unit': 1,
|
|
'max_unit': self.memory_mb,
|
|
'step_size': 1,
|
|
'allocation_ratio': ratios[orc.MEMORY_MB],
|
|
'reserved': CONF.reserved_host_memory_mb,
|
|
},
|
|
'DISK_GB': {
|
|
'total': self.local_gb,
|
|
'min_unit': 1,
|
|
'max_unit': self.local_gb,
|
|
'step_size': 1,
|
|
'allocation_ratio': ratios[orc.DISK_GB],
|
|
'reserved': self._get_reserved_host_disk_gb_from_config(),
|
|
},
|
|
}
|
|
provider_tree.update_inventory(nodename, inventory)
|
|
|
|
def get_instance_disk_info(self, instance, block_device_info=None):
|
|
return
|
|
|
|
def live_migration(self, context, instance, dest,
|
|
post_method, recover_method, block_migration=False,
|
|
migrate_data=None):
|
|
post_method(context, instance, dest, block_migration,
|
|
migrate_data)
|
|
return
|
|
|
|
def live_migration_force_complete(self, instance):
|
|
return
|
|
|
|
def live_migration_abort(self, instance):
|
|
return
|
|
|
|
def cleanup_live_migration_destination_check(self, context,
|
|
dest_check_data):
|
|
return
|
|
|
|
def check_can_live_migrate_destination(self, context, instance,
|
|
src_compute_info, dst_compute_info,
|
|
block_migration=False,
|
|
disk_over_commit=False):
|
|
data = migrate_data.LibvirtLiveMigrateData()
|
|
data.filename = 'fake'
|
|
data.image_type = CONF.libvirt.images_type
|
|
data.graphics_listen_addr_vnc = CONF.vnc.server_listen
|
|
data.graphics_listen_addr_spice = CONF.spice.server_listen
|
|
data.serial_listen_addr = None
|
|
# Notes(eliqiao): block_migration and disk_over_commit are not
|
|
# nullable, so just don't set them if they are None
|
|
if block_migration is not None:
|
|
data.block_migration = block_migration
|
|
if disk_over_commit is not None:
|
|
data.disk_over_commit = disk_over_commit
|
|
data.disk_available_mb = 100000
|
|
data.is_shared_block_storage = True
|
|
data.is_shared_instance_path = True
|
|
|
|
return data
|
|
|
|
def check_can_live_migrate_source(self, context, instance,
|
|
dest_check_data, block_device_info=None):
|
|
return dest_check_data
|
|
|
|
def finish_migration(self, context, migration, instance, disk_info,
|
|
network_info, image_meta, resize_instance,
|
|
allocations, block_device_info=None, power_on=True):
|
|
injected_files = admin_password = None
|
|
# Finish migration is just like spawning the guest on a destination
|
|
# host during resize/cold migrate, so re-use the spawn() fake to
|
|
# claim resources and track the instance on this "hypervisor".
|
|
self.spawn(context, instance, image_meta, injected_files,
|
|
admin_password, allocations,
|
|
block_device_info=block_device_info, power_on=power_on)
|
|
|
|
def confirm_migration(self, context, migration, instance, network_info):
|
|
# Confirm migration cleans up the guest from the source host so just
|
|
# destroy the guest to remove it from the list of tracked instances
|
|
# unless it is a same-host resize.
|
|
if migration.source_compute != migration.dest_compute:
|
|
self.destroy(context, instance, network_info)
|
|
|
|
def pre_live_migration(self, context, instance, block_device_info,
|
|
network_info, disk_info, migrate_data):
|
|
return migrate_data
|
|
|
|
def rollback_live_migration_at_destination(self, context, instance,
|
|
network_info,
|
|
block_device_info,
|
|
destroy_disks=True,
|
|
migrate_data=None):
|
|
return
|
|
|
|
def _test_remove_vm(self, instance_uuid):
|
|
"""Removes the named VM, as if it crashed. For testing."""
|
|
self.instances.pop(instance_uuid)
|
|
|
|
def host_power_action(self, action):
|
|
"""Reboots, shuts down or powers up the host."""
|
|
return action
|
|
|
|
def host_maintenance_mode(self, host, mode):
|
|
"""Start/Stop host maintenance window. On start, it triggers
|
|
guest VMs evacuation.
|
|
"""
|
|
if not mode:
|
|
return 'off_maintenance'
|
|
return 'on_maintenance'
|
|
|
|
def set_host_enabled(self, enabled):
|
|
"""Sets the specified host's ability to accept new instances."""
|
|
if enabled:
|
|
return 'enabled'
|
|
return 'disabled'
|
|
|
|
def get_volume_connector(self, instance):
|
|
return {'ip': CONF.my_block_storage_ip,
|
|
'initiator': 'fake',
|
|
'host': self._host}
|
|
|
|
def get_available_nodes(self, refresh=False):
|
|
return self._nodes
|
|
|
|
def instance_on_disk(self, instance):
|
|
return False
|
|
|
|
def quiesce(self, context, instance, image_meta):
|
|
pass
|
|
|
|
def unquiesce(self, context, instance, image_meta):
|
|
pass
|
|
|
|
|
|
class FakeVirtAPI(virtapi.VirtAPI):
|
|
@contextlib.contextmanager
|
|
def wait_for_instance_event(self, instance, event_names, deadline=300,
|
|
error_callback=None):
|
|
# NOTE(danms): Don't actually wait for any events, just
|
|
# fall through
|
|
yield
|
|
|
|
def exit_wait_early(self, events):
|
|
# We never wait, so there is nothing to exit early
|
|
pass
|
|
|
|
def update_compute_provider_status(self, context, rp_uuid, enabled):
|
|
pass
|
|
|
|
|
|
class SmallFakeDriver(FakeDriver):
|
|
# The api samples expect specific cpu memory and disk sizes. In order to
|
|
# allow the FakeVirt driver to be used outside of the unit tests, provide
|
|
# a separate class that has the values expected by the api samples. So
|
|
# instead of requiring new samples every time those
|
|
# values are adjusted allow them to be overwritten here.
|
|
|
|
vcpus = 2
|
|
memory_mb = 8192
|
|
local_gb = 1028
|
|
|
|
|
|
class MediumFakeDriver(FakeDriver):
|
|
# Fake driver that has enough resources to host more than one instance
|
|
# but not that much that cannot be exhausted easily
|
|
|
|
vcpus = 10
|
|
memory_mb = 8192
|
|
local_gb = 1028
|
|
|
|
|
|
class SameHostColdMigrateDriver(MediumFakeDriver):
|
|
"""MediumFakeDriver variant that supports same-host cold migrate."""
|
|
capabilities = dict(FakeDriver.capabilities,
|
|
supports_migrate_to_same_host=True)
|
|
|
|
|
|
class RescueBFVDriver(MediumFakeDriver):
|
|
capabilities = dict(FakeDriver.capabilities, supports_bfv_rescue=True)
|
|
|
|
|
|
class PowerUpdateFakeDriver(SmallFakeDriver):
|
|
# A specific fake driver for the power-update external event testing.
|
|
|
|
def __init__(self, virtapi):
|
|
super(PowerUpdateFakeDriver, self).__init__(virtapi=None)
|
|
self.driver = ironic.IronicDriver(virtapi=virtapi)
|
|
|
|
def power_update_event(self, instance, target_power_state):
|
|
"""Update power state of the specified instance in the nova DB."""
|
|
self.driver.power_update_event(instance, target_power_state)
|
|
|
|
|
|
class MediumFakeDriverWithNestedCustomResources(MediumFakeDriver):
|
|
# A MediumFakeDriver variant that also reports CUSTOM_MAGIC resources on
|
|
# a nested resource provider
|
|
vcpus = 10
|
|
memory_mb = 8192
|
|
local_gb = 1028
|
|
child_resources = {
|
|
'CUSTOM_MAGIC': {
|
|
'total': 10,
|
|
'reserved': 0,
|
|
'min_unit': 1,
|
|
'max_unit': 10,
|
|
'step_size': 1,
|
|
'allocation_ratio': 1,
|
|
}
|
|
}
|
|
|
|
def update_provider_tree(self, provider_tree, nodename, allocations=None):
|
|
super(
|
|
MediumFakeDriverWithNestedCustomResources,
|
|
self).update_provider_tree(
|
|
provider_tree, nodename,
|
|
allocations=allocations)
|
|
|
|
if not provider_tree.exists(nodename + '-child'):
|
|
provider_tree.new_child(name=nodename + '-child',
|
|
parent=nodename)
|
|
|
|
provider_tree.update_inventory(nodename + '-child',
|
|
self.child_resources)
|
|
|
|
|
|
class FakeFinishMigrationFailDriver(FakeDriver):
|
|
"""FakeDriver variant that will raise an exception from finish_migration"""
|
|
|
|
def finish_migration(self, *args, **kwargs):
|
|
raise exception.VirtualInterfaceCreateException()
|
|
|
|
|
|
class PredictableNodeUUIDDriver(SmallFakeDriver):
|
|
"""SmallFakeDriver variant that reports a predictable node uuid in
|
|
get_available_resource, like IronicDriver.
|
|
"""
|
|
|
|
def get_available_resource(self, nodename):
|
|
resources = super(
|
|
PredictableNodeUUIDDriver, self).get_available_resource(nodename)
|
|
# This is used in ComputeNode.update_from_virt_driver which is called
|
|
# from the ResourceTracker when creating a ComputeNode.
|
|
resources['uuid'] = uuid.uuid5(uuid.NAMESPACE_DNS, nodename)
|
|
return resources
|
|
|
|
|
|
class FakeRescheduleDriver(FakeDriver):
|
|
"""FakeDriver derivative that triggers a reschedule on the first spawn
|
|
attempt. This is expected to only be used in tests that have more than
|
|
one compute service.
|
|
"""
|
|
# dict, keyed by instance uuid, mapped to a boolean telling us if the
|
|
# instance has been rescheduled or not
|
|
rescheduled = {}
|
|
|
|
def spawn(self, context, instance, image_meta, injected_files,
|
|
admin_password, allocations, network_info=None,
|
|
block_device_info=None, power_on=True, accel_info=None):
|
|
if not self.rescheduled.get(instance.uuid, False):
|
|
# We only reschedule on the first time something hits spawn().
|
|
self.rescheduled[instance.uuid] = True
|
|
raise exception.ComputeResourcesUnavailable(
|
|
reason='FakeRescheduleDriver')
|
|
super(FakeRescheduleDriver, self).spawn(
|
|
context, instance, image_meta, injected_files,
|
|
admin_password, allocations, network_info, block_device_info,
|
|
power_on)
|
|
|
|
|
|
class FakeRescheduleDriverWithNestedCustomResources(
|
|
FakeRescheduleDriver, MediumFakeDriverWithNestedCustomResources):
|
|
pass
|
|
|
|
|
|
class FakeBuildAbortDriver(FakeDriver):
|
|
"""FakeDriver derivative that always fails on spawn() with a
|
|
BuildAbortException so no reschedule is attempted.
|
|
"""
|
|
|
|
def spawn(self, context, instance, image_meta, injected_files,
|
|
admin_password, allocations, network_info=None,
|
|
block_device_info=None, power_on=True, accel_info=None):
|
|
raise exception.BuildAbortException(
|
|
instance_uuid=instance.uuid, reason='FakeBuildAbortDriver')
|
|
|
|
|
|
class FakeBuildAbortDriverWithNestedCustomResources(
|
|
FakeBuildAbortDriver, MediumFakeDriverWithNestedCustomResources):
|
|
pass
|
|
|
|
|
|
class FakeUnshelveSpawnFailDriver(FakeDriver):
|
|
"""FakeDriver derivative that always fails on spawn() with a
|
|
VirtualInterfaceCreateException when unshelving an offloaded instance.
|
|
"""
|
|
|
|
def spawn(self, context, instance, image_meta, injected_files,
|
|
admin_password, allocations, network_info=None,
|
|
block_device_info=None, power_on=True, accel_info=None):
|
|
if instance.vm_state == vm_states.SHELVED_OFFLOADED:
|
|
raise exception.VirtualInterfaceCreateException(
|
|
'FakeUnshelveSpawnFailDriver')
|
|
# Otherwise spawn normally during the initial build.
|
|
super(FakeUnshelveSpawnFailDriver, self).spawn(
|
|
context, instance, image_meta, injected_files,
|
|
admin_password, allocations, network_info, block_device_info,
|
|
power_on)
|
|
|
|
|
|
class FakeUnshelveSpawnFailDriverWithNestedCustomResources(
|
|
FakeUnshelveSpawnFailDriver, MediumFakeDriverWithNestedCustomResources):
|
|
pass
|
|
|
|
|
|
class FakeLiveMigrateDriver(FakeDriver):
|
|
"""FakeDriver derivative to handle force_complete and abort calls.
|
|
|
|
This module serves those tests that need to abort or force-complete
|
|
the live migration, thus the live migration will never be finished
|
|
without the force_complete_migration or delete_migration API calls.
|
|
|
|
"""
|
|
|
|
def __init__(self, virtapi, read_only=False):
|
|
super(FakeLiveMigrateDriver, self).__init__(virtapi, read_only)
|
|
self._migrating = True
|
|
self._abort_migration = True
|
|
|
|
def live_migration(self, context, instance, dest,
|
|
post_method, recover_method, block_migration=False,
|
|
migrate_data=None):
|
|
self._abort_migration = False
|
|
self._migrating = True
|
|
count = 0
|
|
while self._migrating and count < 50:
|
|
time.sleep(0.1)
|
|
count = count + 1
|
|
|
|
if self._abort_migration:
|
|
recover_method(context, instance, dest, migrate_data,
|
|
migration_status='cancelled')
|
|
else:
|
|
post_method(context, instance, dest, block_migration,
|
|
migrate_data)
|
|
|
|
def live_migration_force_complete(self, instance):
|
|
self._migrating = False
|
|
if instance.uuid in self.instances:
|
|
del self.instances[instance.uuid]
|
|
|
|
def live_migration_abort(self, instance):
|
|
self._abort_migration = True
|
|
self._migrating = False
|
|
|
|
def post_live_migration(self, context, instance, block_device_info,
|
|
migrate_data=None):
|
|
# Runs on the source host, called from
|
|
# ComputeManager._post_live_migration so just delete the instance
|
|
# from being tracked on the source host.
|
|
self.destroy(context, instance, network_info=None,
|
|
block_device_info=block_device_info)
|
|
|
|
|
|
class FakeLiveMigrateDriverWithNestedCustomResources(
|
|
FakeLiveMigrateDriver, MediumFakeDriverWithNestedCustomResources):
|
|
pass
|
|
|
|
|
|
class FakeDriverWithPciResources(SmallFakeDriver):
|
|
|
|
PCI_ADDR_PF1 = '0000:01:00.0'
|
|
PCI_ADDR_PF1_VF1 = '0000:01:00.1'
|
|
PCI_ADDR_PF2 = '0000:02:00.0'
|
|
PCI_ADDR_PF2_VF1 = '0000:02:00.1'
|
|
PCI_ADDR_PF3 = '0000:03:00.0'
|
|
PCI_ADDR_PF3_VF1 = '0000:03:00.1'
|
|
|
|
# NOTE(gibi): Always use this fixture along with the
|
|
# FakeDriverWithPciResources to make the necessary configuration for the
|
|
# driver.
|
|
class FakeDriverWithPciResourcesConfigFixture(fixtures.Fixture):
|
|
def setUp(self):
|
|
super(FakeDriverWithPciResources.
|
|
FakeDriverWithPciResourcesConfigFixture, self).setUp()
|
|
# Set passthrough_whitelist before the compute node starts to match
|
|
# with the PCI devices reported by this fake driver.
|
|
|
|
# NOTE(gibi): 0000:01:00 is tagged to physnet1 and therefore not a
|
|
# match based on physnet to our sriov port
|
|
# 'port_with_sriov_resource_request' as the network of that port
|
|
# points to physnet2 with the attribute
|
|
# 'provider:physical_network'. Nova pci handling already enforces
|
|
# this rule.
|
|
#
|
|
# 0000:02:00 and 0000:03:00 are both tagged to physnet2 and
|
|
# therefore a good match for our sriov port based on physnet.
|
|
# Having two PFs on the same physnet will allow us to test the
|
|
# placement allocation - physical allocation matching based on the
|
|
# bandwidth allocation in the future.
|
|
CONF.set_override('passthrough_whitelist', override=[
|
|
jsonutils.dumps(
|
|
{
|
|
"address": {
|
|
"domain": "0000",
|
|
"bus": "01",
|
|
"slot": "00",
|
|
"function": ".*"},
|
|
"physical_network": "physnet1",
|
|
}
|
|
),
|
|
jsonutils.dumps(
|
|
{
|
|
"address": {
|
|
"domain": "0000",
|
|
"bus": "02",
|
|
"slot": "00",
|
|
"function": ".*"},
|
|
"physical_network": "physnet2",
|
|
}
|
|
),
|
|
jsonutils.dumps(
|
|
{
|
|
"address": {
|
|
"domain": "0000",
|
|
"bus": "03",
|
|
"slot": "00",
|
|
"function": ".*"},
|
|
"physical_network": "physnet2",
|
|
}
|
|
),
|
|
],
|
|
group='pci')
|
|
|
|
def get_available_resource(self, nodename):
|
|
host_status = super(
|
|
FakeDriverWithPciResources, self).get_available_resource(nodename)
|
|
# 01:00.0 - PF - ens1
|
|
# |---- 01:00.1 - VF
|
|
#
|
|
# 02:00.0 - PF - ens2
|
|
# |---- 02:00.1 - VF
|
|
#
|
|
# 03:00.0 - PF - ens3
|
|
# |---- 03:00.1 - VF
|
|
host_status['pci_passthrough_devices'] = jsonutils.dumps([
|
|
{
|
|
'address': self.PCI_ADDR_PF1,
|
|
'product_id': 'fake-product_id',
|
|
'vendor_id': 'fake-vendor_id',
|
|
'status': 'available',
|
|
'dev_type': 'type-PF',
|
|
'parent_addr': None,
|
|
'numa_node': 0,
|
|
'label': 'fake-label',
|
|
},
|
|
{
|
|
'address': self.PCI_ADDR_PF1_VF1,
|
|
'product_id': 'fake-product_id',
|
|
'vendor_id': 'fake-vendor_id',
|
|
'status': 'available',
|
|
'dev_type': 'type-VF',
|
|
'parent_addr': self.PCI_ADDR_PF1,
|
|
'numa_node': 0,
|
|
'label': 'fake-label',
|
|
"parent_ifname": self._host + "-ens1",
|
|
},
|
|
{
|
|
'address': self.PCI_ADDR_PF2,
|
|
'product_id': 'fake-product_id',
|
|
'vendor_id': 'fake-vendor_id',
|
|
'status': 'available',
|
|
'dev_type': 'type-PF',
|
|
'parent_addr': None,
|
|
'numa_node': 0,
|
|
'label': 'fake-label',
|
|
},
|
|
{
|
|
'address': self.PCI_ADDR_PF2_VF1,
|
|
'product_id': 'fake-product_id',
|
|
'vendor_id': 'fake-vendor_id',
|
|
'status': 'available',
|
|
'dev_type': 'type-VF',
|
|
'parent_addr': self.PCI_ADDR_PF2,
|
|
'numa_node': 0,
|
|
'label': 'fake-label',
|
|
"parent_ifname": self._host + "-ens2",
|
|
},
|
|
{
|
|
'address': self.PCI_ADDR_PF3,
|
|
'product_id': 'fake-product_id',
|
|
'vendor_id': 'fake-vendor_id',
|
|
'status': 'available',
|
|
'dev_type': 'type-PF',
|
|
'parent_addr': None,
|
|
'numa_node': 0,
|
|
'label': 'fake-label',
|
|
},
|
|
{
|
|
'address': self.PCI_ADDR_PF3_VF1,
|
|
'product_id': 'fake-product_id',
|
|
'vendor_id': 'fake-vendor_id',
|
|
'status': 'available',
|
|
'dev_type': 'type-VF',
|
|
'parent_addr': self.PCI_ADDR_PF3,
|
|
'numa_node': 0,
|
|
'label': 'fake-label',
|
|
"parent_ifname": self._host + "-ens3",
|
|
},
|
|
])
|
|
return host_status
|
|
|
|
|
|
class FakeLiveMigrateDriverWithPciResources(
|
|
FakeLiveMigrateDriver, FakeDriverWithPciResources):
|
|
"""FakeDriver derivative to handle force_complete and abort calls.
|
|
|
|
This module serves those tests that need to abort or force-complete
|
|
the live migration, thus the live migration will never be finished
|
|
without the force_complete_migration or delete_migration API calls.
|
|
|
|
"""
|
|
|
|
|
|
class FakeDriverWithCaching(FakeDriver):
|
|
def __init__(self, *a, **k):
|
|
super(FakeDriverWithCaching, self).__init__(*a, **k)
|
|
self.cached_images = set()
|
|
|
|
def cache_image(self, context, image_id):
|
|
if image_id in self.cached_images:
|
|
return False
|
|
else:
|
|
self.cached_images.add(image_id)
|
|
return True
|