1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
# Copyright 2012 Cloudbase Solutions Srl
# 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.
"""
Management class for host operations.
"""
import datetime
import os
import platform
import time
from oslo_config import cfg
from oslo_serialization import jsonutils
from oslo_utils import units
from nova.compute import arch
from nova.compute import hv_type
from nova.compute import vm_mode
from nova.i18n import _
from nova.openstack.common import log as logging
from nova.virt.hyperv import constants
from nova.virt.hyperv import utilsfactory
CONF = cfg.CONF
CONF.import_opt('my_ip', 'nova.netconf')
LOG = logging.getLogger(__name__)
class HostOps(object):
def __init__(self):
self._hostutils = utilsfactory.get_hostutils()
self._pathutils = utilsfactory.get_pathutils()
def _get_cpu_info(self):
"""Get the CPU information.
:returns: A dictionary containing the main properties
of the central processor in the hypervisor.
"""
cpu_info = dict()
processors = self._hostutils.get_cpus_info()
w32_arch_dict = constants.WMI_WIN32_PROCESSOR_ARCHITECTURE
cpu_info['arch'] = w32_arch_dict.get(processors[0]['Architecture'],
'Unknown')
cpu_info['model'] = processors[0]['Name']
cpu_info['vendor'] = processors[0]['Manufacturer']
topology = dict()
topology['sockets'] = len(processors)
topology['cores'] = processors[0]['NumberOfCores']
topology['threads'] = (processors[0]['NumberOfLogicalProcessors'] /
processors[0]['NumberOfCores'])
cpu_info['topology'] = topology
features = list()
for fkey, fname in constants.PROCESSOR_FEATURE.items():
if self._hostutils.is_cpu_feature_present(fkey):
features.append(fname)
cpu_info['features'] = features
return cpu_info
def _get_memory_info(self):
(total_mem_kb, free_mem_kb) = self._hostutils.get_memory_info()
total_mem_mb = total_mem_kb / 1024
free_mem_mb = free_mem_kb / 1024
return (total_mem_mb, free_mem_mb, total_mem_mb - free_mem_mb)
def _get_local_hdd_info_gb(self):
drive = os.path.splitdrive(self._pathutils.get_instances_dir())[0]
(size, free_space) = self._hostutils.get_volume_info(drive)
total_gb = size / units.Gi
free_gb = free_space / units.Gi
used_gb = total_gb - free_gb
return (total_gb, free_gb, used_gb)
def _get_hypervisor_version(self):
"""Get hypervisor version.
:returns: hypervisor version (ex. 6003)
"""
# NOTE(claudiub): The hypervisor_version will be stored in the database
# as an Integer and it will be used by the scheduler, if required by
# the image property 'hypervisor_version_requires'.
# The hypervisor_version will then be converted back to a version
# by splitting the int in groups of 3 digits.
# E.g.: hypervisor_version 6003 is converted to '6.3'.
version = self._hostutils.get_windows_version().split('.')
version = int(version[0]) * 1000 + int(version[1])
LOG.debug('Windows version: %s ', version)
return version
def get_available_resource(self):
"""Retrieve resource info.
This method is called when nova-compute launches, and
as part of a periodic task.
:returns: dictionary describing resources
"""
LOG.debug('get_available_resource called')
(total_mem_mb,
free_mem_mb,
used_mem_mb) = self._get_memory_info()
(total_hdd_gb,
free_hdd_gb,
used_hdd_gb) = self._get_local_hdd_info_gb()
cpu_info = self._get_cpu_info()
cpu_topology = cpu_info['topology']
vcpus = (cpu_topology['sockets'] *
cpu_topology['cores'] *
cpu_topology['threads'])
dic = {'vcpus': vcpus,
'memory_mb': total_mem_mb,
'memory_mb_used': used_mem_mb,
'local_gb': total_hdd_gb,
'local_gb_used': used_hdd_gb,
'hypervisor_type': "hyperv",
'hypervisor_version': self._get_hypervisor_version(),
'hypervisor_hostname': platform.node(),
'vcpus_used': 0,
'cpu_info': jsonutils.dumps(cpu_info),
'supported_instances': jsonutils.dumps(
[(arch.I686, hv_type.HYPERV, vm_mode.HVM),
(arch.X86_64, hv_type.HYPERV, vm_mode.HVM)]),
'numa_topology': None,
}
return dic
def host_power_action(self, action):
"""Reboots, shuts down or powers up the host."""
if action in [constants.HOST_POWER_ACTION_SHUTDOWN,
constants.HOST_POWER_ACTION_REBOOT]:
self._hostutils.host_power_action(action)
else:
if action == constants.HOST_POWER_ACTION_STARTUP:
raise NotImplementedError(
_("Host PowerOn is not supported by the Hyper-V driver"))
def get_host_ip_addr(self):
host_ip = CONF.my_ip
if not host_ip:
# Return the first available address
host_ip = self._hostutils.get_local_ips()[0]
LOG.debug("Host IP address is: %s", host_ip)
return host_ip
def get_host_uptime(self):
"""Returns the host uptime."""
tick_count64 = self._hostutils.get_host_tick_count64()
# format the string to match libvirt driver uptime
# Libvirt uptime returns a combination of the following
# - curent host time
# - time since host is up
# - number of logged in users
# - cpu load
# Since the Windows function GetTickCount64 returns only
# the time since the host is up, returning 0s for cpu load
# and number of logged in users.
# This is done to ensure the format of the returned
# value is same as in libvirt
return "%s up %s, 0 users, load average: 0, 0, 0" % (
str(time.strftime("%H:%M:%S")),
str(datetime.timedelta(milliseconds=long(tick_count64))))
|
