root / lib / hypervisor / hv_kvm.py @ 6396164f
History | View | Annotate | Download (33.8 kB)
1 | eb58f9b1 | Guido Trotter | #
|
---|---|---|---|
2 | eb58f9b1 | Guido Trotter | #
|
3 | eb58f9b1 | Guido Trotter | |
4 | eb58f9b1 | Guido Trotter | # Copyright (C) 2008 Google Inc.
|
5 | eb58f9b1 | Guido Trotter | #
|
6 | eb58f9b1 | Guido Trotter | # This program is free software; you can redistribute it and/or modify
|
7 | eb58f9b1 | Guido Trotter | # it under the terms of the GNU General Public License as published by
|
8 | eb58f9b1 | Guido Trotter | # the Free Software Foundation; either version 2 of the License, or
|
9 | eb58f9b1 | Guido Trotter | # (at your option) any later version.
|
10 | eb58f9b1 | Guido Trotter | #
|
11 | eb58f9b1 | Guido Trotter | # This program is distributed in the hope that it will be useful, but
|
12 | eb58f9b1 | Guido Trotter | # WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | eb58f9b1 | Guido Trotter | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | eb58f9b1 | Guido Trotter | # General Public License for more details.
|
15 | eb58f9b1 | Guido Trotter | #
|
16 | eb58f9b1 | Guido Trotter | # You should have received a copy of the GNU General Public License
|
17 | eb58f9b1 | Guido Trotter | # along with this program; if not, write to the Free Software
|
18 | eb58f9b1 | Guido Trotter | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 | eb58f9b1 | Guido Trotter | # 02110-1301, USA.
|
20 | eb58f9b1 | Guido Trotter | |
21 | eb58f9b1 | Guido Trotter | |
22 | eb58f9b1 | Guido Trotter | """KVM hypervisor
|
23 | eb58f9b1 | Guido Trotter |
|
24 | eb58f9b1 | Guido Trotter | """
|
25 | eb58f9b1 | Guido Trotter | |
26 | eb58f9b1 | Guido Trotter | import os |
27 | eb58f9b1 | Guido Trotter | import os.path |
28 | eb58f9b1 | Guido Trotter | import re |
29 | eb58f9b1 | Guido Trotter | import tempfile |
30 | 6567aff3 | Guido Trotter | import time |
31 | 30e42c4e | Guido Trotter | import logging |
32 | d19d94db | Guido Trotter | import pwd |
33 | eb58f9b1 | Guido Trotter | from cStringIO import StringIO |
34 | eb58f9b1 | Guido Trotter | |
35 | eb58f9b1 | Guido Trotter | from ganeti import utils |
36 | eb58f9b1 | Guido Trotter | from ganeti import constants |
37 | eb58f9b1 | Guido Trotter | from ganeti import errors |
38 | 38e250ba | Guido Trotter | from ganeti import serializer |
39 | 38e250ba | Guido Trotter | from ganeti import objects |
40 | 76431533 | Guido Trotter | from ganeti import uidpool |
41 | 76431533 | Guido Trotter | from ganeti import ssconf |
42 | eb58f9b1 | Guido Trotter | from ganeti.hypervisor import hv_base |
43 | eb58f9b1 | Guido Trotter | |
44 | eb58f9b1 | Guido Trotter | |
45 | eb58f9b1 | Guido Trotter | class KVMHypervisor(hv_base.BaseHypervisor): |
46 | c4469f75 | Guido Trotter | """KVM hypervisor interface"""
|
47 | d271c6fd | Iustin Pop | CAN_MIGRATE = True
|
48 | eb58f9b1 | Guido Trotter | |
49 | eb58f9b1 | Guido Trotter | _ROOT_DIR = constants.RUN_GANETI_DIR + "/kvm-hypervisor"
|
50 | a1d79fc6 | Guido Trotter | _PIDS_DIR = _ROOT_DIR + "/pid" # contains live instances pids |
51 | 7548396c | Guido Trotter | _UIDS_DIR = _ROOT_DIR + "/uid" # contains instances reserved uids |
52 | a1d79fc6 | Guido Trotter | _CTRL_DIR = _ROOT_DIR + "/ctrl" # contains instances control sockets |
53 | a1d79fc6 | Guido Trotter | _CONF_DIR = _ROOT_DIR + "/conf" # contains instances startup data |
54 | 7548396c | Guido Trotter | _DIRS = [_ROOT_DIR, _PIDS_DIR, _UIDS_DIR, _CTRL_DIR, _CONF_DIR] |
55 | eb58f9b1 | Guido Trotter | |
56 | 205ab586 | Iustin Pop | PARAMETERS = { |
57 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.OPT_FILE_CHECK, |
58 | 205ab586 | Iustin Pop | constants.HV_INITRD_PATH: hv_base.OPT_FILE_CHECK, |
59 | 205ab586 | Iustin Pop | constants.HV_ROOT_PATH: hv_base.NO_CHECK, |
60 | 205ab586 | Iustin Pop | constants.HV_KERNEL_ARGS: hv_base.NO_CHECK, |
61 | 205ab586 | Iustin Pop | constants.HV_ACPI: hv_base.NO_CHECK, |
62 | 205ab586 | Iustin Pop | constants.HV_SERIAL_CONSOLE: hv_base.NO_CHECK, |
63 | d73ef63f | Michael Hanselmann | constants.HV_VNC_BIND_ADDRESS: |
64 | d73ef63f | Michael Hanselmann | (False, lambda x: (utils.IsValidIP(x) or utils.IsNormAbsPath(x)), |
65 | d73ef63f | Michael Hanselmann | "the VNC bind address must be either a valid IP address or an absolute"
|
66 | d73ef63f | Michael Hanselmann | " pathname", None, None), |
67 | 205ab586 | Iustin Pop | constants.HV_VNC_TLS: hv_base.NO_CHECK, |
68 | 205ab586 | Iustin Pop | constants.HV_VNC_X509: hv_base.OPT_DIR_CHECK, |
69 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY: hv_base.NO_CHECK, |
70 | 6e6bb8d5 | Guido Trotter | constants.HV_VNC_PASSWORD_FILE: hv_base.OPT_FILE_CHECK, |
71 | 205ab586 | Iustin Pop | constants.HV_CDROM_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
72 | d73ef63f | Michael Hanselmann | constants.HV_BOOT_ORDER: |
73 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_BO_TYPES),
|
74 | d73ef63f | Michael Hanselmann | constants.HV_NIC_TYPE: |
75 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_NIC_TYPES),
|
76 | d73ef63f | Michael Hanselmann | constants.HV_DISK_TYPE: |
77 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_DISK_TYPES),
|
78 | d73ef63f | Michael Hanselmann | constants.HV_USB_MOUSE: |
79 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(False, constants.HT_KVM_VALID_MOUSE_TYPES),
|
80 | 78411c60 | Iustin Pop | constants.HV_MIGRATION_PORT: hv_base.NET_PORT_CHECK, |
81 | e43d4f9f | Apollon Oikonomopoulos | constants.HV_MIGRATION_BANDWIDTH: hv_base.NO_CHECK, |
82 | e43d4f9f | Apollon Oikonomopoulos | constants.HV_MIGRATION_DOWNTIME: hv_base.NO_CHECK, |
83 | 6b970cef | Jun Futagawa | constants.HV_USE_LOCALTIME: hv_base.NO_CHECK, |
84 | 19572932 | Iustin Pop | constants.HV_DISK_CACHE: |
85 | 19572932 | Iustin Pop | hv_base.ParamInSet(True, constants.HT_VALID_CACHE_TYPES),
|
86 | d19d94db | Guido Trotter | constants.HV_SECURITY_MODEL: |
87 | d19d94db | Guido Trotter | hv_base.ParamInSet(True, constants.HT_KVM_VALID_SM_TYPES),
|
88 | d19d94db | Guido Trotter | constants.HV_SECURITY_DOMAIN: hv_base.NO_CHECK, |
89 | 7ba594c0 | Guido Trotter | constants.HV_KVM_FLAG: |
90 | 7ba594c0 | Guido Trotter | hv_base.ParamInSet(False, constants.HT_KVM_FLAG_VALUES),
|
91 | fbe27e2b | Guido Trotter | constants.HV_VHOST_NET: hv_base.NO_CHECK, |
92 | 205ab586 | Iustin Pop | } |
93 | 6b5605e8 | Iustin Pop | |
94 | 30e42c4e | Guido Trotter | _MIGRATION_STATUS_RE = re.compile('Migration\s+status:\s+(\w+)',
|
95 | 30e42c4e | Guido Trotter | re.M | re.I) |
96 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_MAX_BAD_ANSWERS = 5
|
97 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_RETRY_DELAY = 2
|
98 | 30e42c4e | Guido Trotter | |
99 | 5420ffc9 | Guido Trotter | _KVM_NETWORK_SCRIPT = constants.SYSCONFDIR + "/ganeti/kvm-vif-bridge"
|
100 | 5420ffc9 | Guido Trotter | |
101 | 64bfbc08 | Guido Trotter | ANCILLARY_FILES = [ |
102 | 64bfbc08 | Guido Trotter | _KVM_NETWORK_SCRIPT, |
103 | 64bfbc08 | Guido Trotter | ] |
104 | 64bfbc08 | Guido Trotter | |
105 | eb58f9b1 | Guido Trotter | def __init__(self): |
106 | eb58f9b1 | Guido Trotter | hv_base.BaseHypervisor.__init__(self)
|
107 | eb58f9b1 | Guido Trotter | # Let's make sure the directories we need exist, even if the RUN_DIR lives
|
108 | eb58f9b1 | Guido Trotter | # in a tmpfs filesystem or has been otherwise wiped out.
|
109 | 29921401 | Iustin Pop | dirs = [(dname, constants.RUN_DIRS_MODE) for dname in self._DIRS] |
110 | 9afb67fe | Guido Trotter | utils.EnsureDirs(dirs) |
111 | eb58f9b1 | Guido Trotter | |
112 | 30786fc9 | Iustin Pop | @classmethod
|
113 | 30786fc9 | Iustin Pop | def _InstancePidFile(cls, instance_name): |
114 | 98ec75d6 | Iustin Pop | """Returns the instance pidfile.
|
115 | 98ec75d6 | Iustin Pop |
|
116 | 98ec75d6 | Iustin Pop | """
|
117 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._PIDS_DIR, instance_name)
|
118 | 98ec75d6 | Iustin Pop | |
119 | 263b8de6 | Guido Trotter | @classmethod
|
120 | 7548396c | Guido Trotter | def _InstanceUidFile(cls, instance_name): |
121 | 7548396c | Guido Trotter | """Returns the instance uidfile.
|
122 | 7548396c | Guido Trotter |
|
123 | 7548396c | Guido Trotter | """
|
124 | 7548396c | Guido Trotter | return utils.PathJoin(cls._UIDS_DIR, instance_name)
|
125 | 7548396c | Guido Trotter | |
126 | 7548396c | Guido Trotter | @classmethod
|
127 | 263b8de6 | Guido Trotter | def _InstancePidInfo(cls, pid): |
128 | 263b8de6 | Guido Trotter | """Check pid file for instance information.
|
129 | 263b8de6 | Guido Trotter |
|
130 | 263b8de6 | Guido Trotter | Check that a pid file is associated with an instance, and retrieve
|
131 | 263b8de6 | Guido Trotter | information from its command line.
|
132 | 263b8de6 | Guido Trotter |
|
133 | 263b8de6 | Guido Trotter | @type pid: string or int
|
134 | 263b8de6 | Guido Trotter | @param pid: process id of the instance to check
|
135 | 263b8de6 | Guido Trotter | @rtype: tuple
|
136 | 263b8de6 | Guido Trotter | @return: (instance_name, memory, vcpus)
|
137 | 263b8de6 | Guido Trotter | @raise errors.HypervisorError: when an instance cannot be found
|
138 | 263b8de6 | Guido Trotter |
|
139 | 263b8de6 | Guido Trotter | """
|
140 | 263b8de6 | Guido Trotter | alive = utils.IsProcessAlive(pid) |
141 | 263b8de6 | Guido Trotter | if not alive: |
142 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Cannot get info for pid %s" % pid) |
143 | 263b8de6 | Guido Trotter | |
144 | 263b8de6 | Guido Trotter | cmdline_file = utils.PathJoin("/proc", str(pid), "cmdline") |
145 | 263b8de6 | Guido Trotter | try:
|
146 | 263b8de6 | Guido Trotter | cmdline = utils.ReadFile(cmdline_file) |
147 | 263b8de6 | Guido Trotter | except EnvironmentError, err: |
148 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Can't open cmdline file for pid %s: %s" % |
149 | 263b8de6 | Guido Trotter | (pid, err)) |
150 | 263b8de6 | Guido Trotter | |
151 | 263b8de6 | Guido Trotter | instance = None
|
152 | 263b8de6 | Guido Trotter | memory = 0
|
153 | 263b8de6 | Guido Trotter | vcpus = 0
|
154 | 263b8de6 | Guido Trotter | |
155 | 263b8de6 | Guido Trotter | arg_list = cmdline.split('\x00')
|
156 | 263b8de6 | Guido Trotter | while arg_list:
|
157 | 263b8de6 | Guido Trotter | arg = arg_list.pop(0)
|
158 | 263b8de6 | Guido Trotter | if arg == "-name": |
159 | 263b8de6 | Guido Trotter | instance = arg_list.pop(0)
|
160 | 263b8de6 | Guido Trotter | elif arg == "-m": |
161 | 263b8de6 | Guido Trotter | memory = int(arg_list.pop(0)) |
162 | 263b8de6 | Guido Trotter | elif arg == "-smp": |
163 | 263b8de6 | Guido Trotter | vcpus = int(arg_list.pop(0)) |
164 | 263b8de6 | Guido Trotter | |
165 | 263b8de6 | Guido Trotter | if instance is None: |
166 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Pid %s doesn't contain a ganeti kvm" |
167 | 263b8de6 | Guido Trotter | " instance" % pid)
|
168 | 263b8de6 | Guido Trotter | |
169 | 263b8de6 | Guido Trotter | return (instance, memory, vcpus)
|
170 | 263b8de6 | Guido Trotter | |
171 | 1f8b3a27 | Guido Trotter | def _InstancePidAlive(self, instance_name): |
172 | 263b8de6 | Guido Trotter | """Returns the instance pidfile, pid, and liveness.
|
173 | 263b8de6 | Guido Trotter |
|
174 | 263b8de6 | Guido Trotter | @type instance_name: string
|
175 | 263b8de6 | Guido Trotter | @param instance_name: instance name
|
176 | 263b8de6 | Guido Trotter | @rtype: tuple
|
177 | 263b8de6 | Guido Trotter | @return: (pid file name, pid, liveness)
|
178 | 1f8b3a27 | Guido Trotter |
|
179 | 1f8b3a27 | Guido Trotter | """
|
180 | 98ec75d6 | Iustin Pop | pidfile = self._InstancePidFile(instance_name)
|
181 | 1f8b3a27 | Guido Trotter | pid = utils.ReadPidFile(pidfile) |
182 | 263b8de6 | Guido Trotter | |
183 | 263b8de6 | Guido Trotter | alive = False
|
184 | 263b8de6 | Guido Trotter | try:
|
185 | 263b8de6 | Guido Trotter | cmd_instance = self._InstancePidInfo(pid)[0] |
186 | 263b8de6 | Guido Trotter | alive = (cmd_instance == instance_name) |
187 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
188 | 263b8de6 | Guido Trotter | pass
|
189 | 1f8b3a27 | Guido Trotter | |
190 | 1f8b3a27 | Guido Trotter | return (pidfile, pid, alive)
|
191 | 1f8b3a27 | Guido Trotter | |
192 | 5905901c | Iustin Pop | def _CheckDown(self, instance_name): |
193 | 5905901c | Iustin Pop | """Raises an error unless the given instance is down.
|
194 | 5905901c | Iustin Pop |
|
195 | 5905901c | Iustin Pop | """
|
196 | 5905901c | Iustin Pop | alive = self._InstancePidAlive(instance_name)[2] |
197 | 5905901c | Iustin Pop | if alive:
|
198 | 5905901c | Iustin Pop | raise errors.HypervisorError("Failed to start instance %s: %s" % |
199 | 5905901c | Iustin Pop | (instance_name, "already running"))
|
200 | 5905901c | Iustin Pop | |
201 | 0df4d98a | Guido Trotter | @classmethod
|
202 | 0df4d98a | Guido Trotter | def _InstanceMonitor(cls, instance_name): |
203 | c4fbefc8 | Guido Trotter | """Returns the instance monitor socket name
|
204 | c4fbefc8 | Guido Trotter |
|
205 | c4fbefc8 | Guido Trotter | """
|
206 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.monitor" % instance_name) |
207 | c4fbefc8 | Guido Trotter | |
208 | 0df4d98a | Guido Trotter | @classmethod
|
209 | 0df4d98a | Guido Trotter | def _InstanceSerial(cls, instance_name): |
210 | c4fbefc8 | Guido Trotter | """Returns the instance serial socket name
|
211 | c4fbefc8 | Guido Trotter |
|
212 | c4fbefc8 | Guido Trotter | """
|
213 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.serial" % instance_name) |
214 | c4fbefc8 | Guido Trotter | |
215 | 86d6bc2a | Guido Trotter | @staticmethod
|
216 | 86d6bc2a | Guido Trotter | def _SocatUnixConsoleParams(): |
217 | 86d6bc2a | Guido Trotter | """Returns the correct parameters for socat
|
218 | 86d6bc2a | Guido Trotter |
|
219 | 86d6bc2a | Guido Trotter | If we have a new-enough socat we can use raw mode with an escape character.
|
220 | 86d6bc2a | Guido Trotter |
|
221 | 86d6bc2a | Guido Trotter | """
|
222 | fe5b0c42 | Michael Hanselmann | if constants.SOCAT_USE_ESCAPE:
|
223 | 86d6bc2a | Guido Trotter | return "raw,echo=0,escape=%s" % constants.SOCAT_ESCAPE_CODE |
224 | 86d6bc2a | Guido Trotter | else:
|
225 | 86d6bc2a | Guido Trotter | return "echo=0,icanon=0" |
226 | 86d6bc2a | Guido Trotter | |
227 | 0df4d98a | Guido Trotter | @classmethod
|
228 | 0df4d98a | Guido Trotter | def _InstanceKVMRuntime(cls, instance_name): |
229 | 38e250ba | Guido Trotter | """Returns the instance KVM runtime filename
|
230 | 38e250ba | Guido Trotter |
|
231 | 38e250ba | Guido Trotter | """
|
232 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CONF_DIR, "%s.runtime" % instance_name) |
233 | 38e250ba | Guido Trotter | |
234 | 7e66c35b | Guido Trotter | @classmethod
|
235 | 7548396c | Guido Trotter | def _TryReadUidFile(cls, uid_file): |
236 | 7548396c | Guido Trotter | """Try to read a uid file
|
237 | 7548396c | Guido Trotter |
|
238 | 7548396c | Guido Trotter | """
|
239 | 7548396c | Guido Trotter | if os.path.exists(uid_file):
|
240 | 7548396c | Guido Trotter | try:
|
241 | 682f7601 | Guido Trotter | uid = int(utils.ReadOneLineFile(uid_file))
|
242 | aa0b600b | Guido Trotter | return uid
|
243 | 7548396c | Guido Trotter | except EnvironmentError: |
244 | 7548396c | Guido Trotter | logging.warning("Can't read uid file", exc_info=True) |
245 | 7548396c | Guido Trotter | except (TypeError, ValueError): |
246 | 7548396c | Guido Trotter | logging.warning("Can't parse uid file contents", exc_info=True) |
247 | aa0b600b | Guido Trotter | return None |
248 | 7548396c | Guido Trotter | |
249 | 7548396c | Guido Trotter | @classmethod
|
250 | 7e66c35b | Guido Trotter | def _RemoveInstanceRuntimeFiles(cls, pidfile, instance_name): |
251 | 7e66c35b | Guido Trotter | """Removes an instance's rutime sockets/files.
|
252 | 7e66c35b | Guido Trotter |
|
253 | 7e66c35b | Guido Trotter | """
|
254 | 7e66c35b | Guido Trotter | utils.RemoveFile(pidfile) |
255 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceMonitor(instance_name)) |
256 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceSerial(instance_name)) |
257 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceKVMRuntime(instance_name)) |
258 | 7548396c | Guido Trotter | uid_file = cls._InstanceUidFile(instance_name) |
259 | 7548396c | Guido Trotter | uid = cls._TryReadUidFile(uid_file) |
260 | 7548396c | Guido Trotter | utils.RemoveFile(uid_file) |
261 | 7548396c | Guido Trotter | if uid is not None: |
262 | 7548396c | Guido Trotter | uidpool.ReleaseUid(uid) |
263 | 7e66c35b | Guido Trotter | |
264 | eb58f9b1 | Guido Trotter | def _WriteNetScript(self, instance, seq, nic): |
265 | eb58f9b1 | Guido Trotter | """Write a script to connect a net interface to the proper bridge.
|
266 | eb58f9b1 | Guido Trotter |
|
267 | eb58f9b1 | Guido Trotter | This can be used by any qemu-type hypervisor.
|
268 | eb58f9b1 | Guido Trotter |
|
269 | eb58f9b1 | Guido Trotter | @param instance: instance we're acting on
|
270 | eb58f9b1 | Guido Trotter | @type instance: instance object
|
271 | eb58f9b1 | Guido Trotter | @param seq: nic sequence number
|
272 | eb58f9b1 | Guido Trotter | @type seq: int
|
273 | eb58f9b1 | Guido Trotter | @param nic: nic we're acting on
|
274 | eb58f9b1 | Guido Trotter | @type nic: nic object
|
275 | eb58f9b1 | Guido Trotter | @return: netscript file name
|
276 | eb58f9b1 | Guido Trotter | @rtype: string
|
277 | eb58f9b1 | Guido Trotter |
|
278 | eb58f9b1 | Guido Trotter | """
|
279 | eb58f9b1 | Guido Trotter | script = StringIO() |
280 | eb58f9b1 | Guido Trotter | script.write("#!/bin/sh\n")
|
281 | eb58f9b1 | Guido Trotter | script.write("# this is autogenerated by Ganeti, please do not edit\n#\n")
|
282 | e8022bef | Vitaly Kuznetsov | script.write("PATH=$PATH:/sbin:/usr/sbin\n")
|
283 | eb58f9b1 | Guido Trotter | script.write("export INSTANCE=%s\n" % instance.name)
|
284 | eb58f9b1 | Guido Trotter | script.write("export MAC=%s\n" % nic.mac)
|
285 | bef9c750 | Guido Trotter | if nic.ip:
|
286 | bef9c750 | Guido Trotter | script.write("export IP=%s\n" % nic.ip)
|
287 | bef9c750 | Guido Trotter | script.write("export MODE=%s\n" % nic.nicparams[constants.NIC_MODE])
|
288 | bef9c750 | Guido Trotter | if nic.nicparams[constants.NIC_LINK]:
|
289 | bef9c750 | Guido Trotter | script.write("export LINK=%s\n" % nic.nicparams[constants.NIC_LINK])
|
290 | bef9c750 | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
291 | bef9c750 | Guido Trotter | script.write("export BRIDGE=%s\n" % nic.nicparams[constants.NIC_LINK])
|
292 | eb58f9b1 | Guido Trotter | script.write("export INTERFACE=$1\n")
|
293 | 1cc831ea | Guido Trotter | if instance.tags:
|
294 | 1cc831ea | Guido Trotter | script.write("export TAGS=\"%s\"\n" % " ".join(instance.tags)) |
295 | eb58f9b1 | Guido Trotter | # TODO: make this configurable at ./configure time
|
296 | 5420ffc9 | Guido Trotter | script.write("if [ -x '%s' ]; then\n" % self._KVM_NETWORK_SCRIPT) |
297 | eb58f9b1 | Guido Trotter | script.write(" # Execute the user-specific vif file\n")
|
298 | 5420ffc9 | Guido Trotter | script.write(" %s\n" % self._KVM_NETWORK_SCRIPT) |
299 | eb58f9b1 | Guido Trotter | script.write("else\n")
|
300 | e8022bef | Vitaly Kuznetsov | script.write(" ifconfig $INTERFACE 0.0.0.0 up\n")
|
301 | bef9c750 | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
302 | bef9c750 | Guido Trotter | script.write(" # Connect the interface to the bridge\n")
|
303 | e8022bef | Vitaly Kuznetsov | script.write(" brctl addif $BRIDGE $INTERFACE\n")
|
304 | bef9c750 | Guido Trotter | elif nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_ROUTED:
|
305 | 94c2ed34 | Guido Trotter | if not nic.ip: |
306 | 94c2ed34 | Guido Trotter | raise errors.HypervisorError("nic/%d is routed, but has no ip." % seq) |
307 | bef9c750 | Guido Trotter | script.write(" # Route traffic targeted at the IP to the interface\n")
|
308 | 7c60f7a2 | Guido Trotter | if nic.nicparams[constants.NIC_LINK]:
|
309 | e8022bef | Vitaly Kuznetsov | script.write(" while ip rule del dev $INTERFACE; do :; done\n")
|
310 | e8022bef | Vitaly Kuznetsov | script.write(" ip rule add dev $INTERFACE table $LINK\n")
|
311 | e8022bef | Vitaly Kuznetsov | script.write(" ip route replace $IP table $LINK proto static"
|
312 | d63218ce | Guido Trotter | " dev $INTERFACE\n")
|
313 | 7c60f7a2 | Guido Trotter | else:
|
314 | e8022bef | Vitaly Kuznetsov | script.write(" ip route replace $IP proto static"
|
315 | 8866ec86 | Guido Trotter | " dev $INTERFACE\n")
|
316 | e014f1d0 | Guido Trotter | interface_v4_conf = "/proc/sys/net/ipv4/conf/$INTERFACE"
|
317 | e014f1d0 | Guido Trotter | interface_v6_conf = "/proc/sys/net/ipv6/conf/$INTERFACE"
|
318 | e014f1d0 | Guido Trotter | script.write(" if [ -d %s ]; then\n" % interface_v4_conf)
|
319 | e014f1d0 | Guido Trotter | script.write(" echo 1 > %s/proxy_arp\n" % interface_v4_conf)
|
320 | e014f1d0 | Guido Trotter | script.write(" echo 1 > %s/forwarding\n" % interface_v4_conf)
|
321 | e014f1d0 | Guido Trotter | script.write(" fi\n")
|
322 | e014f1d0 | Guido Trotter | script.write(" if [ -d %s ]; then\n" % interface_v6_conf)
|
323 | e014f1d0 | Guido Trotter | script.write(" echo 1 > %s/proxy_ndp\n" % interface_v6_conf)
|
324 | e014f1d0 | Guido Trotter | script.write(" echo 1 > %s/forwarding\n" % interface_v6_conf)
|
325 | e014f1d0 | Guido Trotter | script.write(" fi\n")
|
326 | eb58f9b1 | Guido Trotter | script.write("fi\n\n")
|
327 | eb58f9b1 | Guido Trotter | # As much as we'd like to put this in our _ROOT_DIR, that will happen to be
|
328 | eb58f9b1 | Guido Trotter | # mounted noexec sometimes, so we'll have to find another place.
|
329 | eb58f9b1 | Guido Trotter | (tmpfd, tmpfile_name) = tempfile.mkstemp() |
330 | eb58f9b1 | Guido Trotter | tmpfile = os.fdopen(tmpfd, 'w')
|
331 | d73ef63f | Michael Hanselmann | try:
|
332 | d73ef63f | Michael Hanselmann | tmpfile.write(script.getvalue()) |
333 | d73ef63f | Michael Hanselmann | finally:
|
334 | d73ef63f | Michael Hanselmann | tmpfile.close() |
335 | eb58f9b1 | Guido Trotter | os.chmod(tmpfile_name, 0755)
|
336 | eb58f9b1 | Guido Trotter | return tmpfile_name
|
337 | eb58f9b1 | Guido Trotter | |
338 | eb58f9b1 | Guido Trotter | def ListInstances(self): |
339 | eb58f9b1 | Guido Trotter | """Get the list of running instances.
|
340 | eb58f9b1 | Guido Trotter |
|
341 | c41eea6e | Iustin Pop | We can do this by listing our live instances directory and
|
342 | c41eea6e | Iustin Pop | checking whether the associated kvm process is still alive.
|
343 | eb58f9b1 | Guido Trotter |
|
344 | eb58f9b1 | Guido Trotter | """
|
345 | eb58f9b1 | Guido Trotter | result = [] |
346 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
347 | 263b8de6 | Guido Trotter | if self._InstancePidAlive(name)[2]: |
348 | eb58f9b1 | Guido Trotter | result.append(name) |
349 | eb58f9b1 | Guido Trotter | return result
|
350 | eb58f9b1 | Guido Trotter | |
351 | eb58f9b1 | Guido Trotter | def GetInstanceInfo(self, instance_name): |
352 | eb58f9b1 | Guido Trotter | """Get instance properties.
|
353 | eb58f9b1 | Guido Trotter |
|
354 | 4fbb3c60 | Guido Trotter | @type instance_name: string
|
355 | c41eea6e | Iustin Pop | @param instance_name: the instance name
|
356 | 4fbb3c60 | Guido Trotter | @rtype: tuple of strings
|
357 | 4fbb3c60 | Guido Trotter | @return: (name, id, memory, vcpus, stat, times)
|
358 | eb58f9b1 | Guido Trotter |
|
359 | eb58f9b1 | Guido Trotter | """
|
360 | 1122eb25 | Iustin Pop | _, pid, alive = self._InstancePidAlive(instance_name)
|
361 | 1f8b3a27 | Guido Trotter | if not alive: |
362 | eb58f9b1 | Guido Trotter | return None |
363 | eb58f9b1 | Guido Trotter | |
364 | 263b8de6 | Guido Trotter | _, memory, vcpus = self._InstancePidInfo(pid)
|
365 | eb58f9b1 | Guido Trotter | stat = "---b-"
|
366 | eb58f9b1 | Guido Trotter | times = "0"
|
367 | eb58f9b1 | Guido Trotter | |
368 | eb58f9b1 | Guido Trotter | return (instance_name, pid, memory, vcpus, stat, times)
|
369 | eb58f9b1 | Guido Trotter | |
370 | eb58f9b1 | Guido Trotter | def GetAllInstancesInfo(self): |
371 | eb58f9b1 | Guido Trotter | """Get properties of all instances.
|
372 | eb58f9b1 | Guido Trotter |
|
373 | c41eea6e | Iustin Pop | @return: list of tuples (name, id, memory, vcpus, stat, times)
|
374 | c41eea6e | Iustin Pop |
|
375 | eb58f9b1 | Guido Trotter | """
|
376 | eb58f9b1 | Guido Trotter | data = [] |
377 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
378 | 263b8de6 | Guido Trotter | try:
|
379 | 263b8de6 | Guido Trotter | info = self.GetInstanceInfo(name)
|
380 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
381 | 263b8de6 | Guido Trotter | continue
|
382 | 263b8de6 | Guido Trotter | if info:
|
383 | 263b8de6 | Guido Trotter | data.append(info) |
384 | eb58f9b1 | Guido Trotter | return data
|
385 | eb58f9b1 | Guido Trotter | |
386 | 07813a9e | Iustin Pop | def _GenerateKVMRuntime(self, instance, block_devices): |
387 | ee5f20b0 | Guido Trotter | """Generate KVM information to start an instance.
|
388 | eb58f9b1 | Guido Trotter |
|
389 | eb58f9b1 | Guido Trotter | """
|
390 | 98ec75d6 | Iustin Pop | pidfile = self._InstancePidFile(instance.name)
|
391 | eb58f9b1 | Guido Trotter | kvm = constants.KVM_PATH |
392 | eb58f9b1 | Guido Trotter | kvm_cmd = [kvm] |
393 | c6a39fc2 | Guido Trotter | # used just by the vnc server, if enabled
|
394 | c6a39fc2 | Guido Trotter | kvm_cmd.extend(['-name', instance.name])
|
395 | 8b3fd458 | Iustin Pop | kvm_cmd.extend(['-m', instance.beparams[constants.BE_MEMORY]])
|
396 | 8b3fd458 | Iustin Pop | kvm_cmd.extend(['-smp', instance.beparams[constants.BE_VCPUS]])
|
397 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-pidfile', pidfile])
|
398 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-daemonize'])
|
399 | 6b5605e8 | Iustin Pop | if not instance.hvparams[constants.HV_ACPI]: |
400 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-no-acpi'])
|
401 | eb58f9b1 | Guido Trotter | |
402 | a985b417 | Iustin Pop | hvp = instance.hvparams |
403 | 835528af | Iustin Pop | boot_disk = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_DISK |
404 | 835528af | Iustin Pop | boot_cdrom = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_CDROM |
405 | 835528af | Iustin Pop | boot_network = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_NETWORK |
406 | 8745c3d7 | Guido Trotter | |
407 | 7ba594c0 | Guido Trotter | if hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_ENABLED:
|
408 | 7ba594c0 | Guido Trotter | kvm_cmd.extend(["-enable-kvm"])
|
409 | 7ba594c0 | Guido Trotter | elif hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_DISABLED:
|
410 | 7ba594c0 | Guido Trotter | kvm_cmd.extend(["-disable-kvm"])
|
411 | 7ba594c0 | Guido Trotter | |
412 | 8745c3d7 | Guido Trotter | if boot_network:
|
413 | 8745c3d7 | Guido Trotter | kvm_cmd.extend(['-boot', 'n']) |
414 | 1213604d | Guido Trotter | |
415 | a985b417 | Iustin Pop | disk_type = hvp[constants.HV_DISK_TYPE] |
416 | 1213604d | Guido Trotter | if disk_type == constants.HT_DISK_PARAVIRTUAL:
|
417 | 1213604d | Guido Trotter | if_val = ',if=virtio'
|
418 | 1213604d | Guido Trotter | else:
|
419 | 1213604d | Guido Trotter | if_val = ',if=%s' % disk_type
|
420 | 19572932 | Iustin Pop | # Cache mode
|
421 | 19572932 | Iustin Pop | disk_cache = hvp[constants.HV_DISK_CACHE] |
422 | 19572932 | Iustin Pop | if disk_cache != constants.HT_CACHE_DEFAULT:
|
423 | 19572932 | Iustin Pop | cache_val = ",cache=%s" % disk_cache
|
424 | 19572932 | Iustin Pop | else:
|
425 | 19572932 | Iustin Pop | cache_val = ""
|
426 | 069cfbf1 | Iustin Pop | for cfdev, dev_path in block_devices: |
427 | d34b16d7 | Iustin Pop | if cfdev.mode != constants.DISK_RDWR:
|
428 | d34b16d7 | Iustin Pop | raise errors.HypervisorError("Instance has read-only disks which" |
429 | d34b16d7 | Iustin Pop | " are not supported by KVM")
|
430 | eb58f9b1 | Guido Trotter | # TODO: handle FD_LOOP and FD_BLKTAP (?)
|
431 | 66d5dbef | Guido Trotter | if boot_disk:
|
432 | 9dd363eb | Guido Trotter | kvm_cmd.extend(['-boot', 'c']) |
433 | 9cf4321f | Apollon Oikonomopoulos | if disk_type != constants.HT_DISK_IDE:
|
434 | 74a4c11b | Guido Trotter | boot_val = ',boot=on'
|
435 | 9cf4321f | Apollon Oikonomopoulos | else:
|
436 | 74a4c11b | Guido Trotter | boot_val = ''
|
437 | 8745c3d7 | Guido Trotter | # We only boot from the first disk
|
438 | 66d5dbef | Guido Trotter | boot_disk = False
|
439 | eb58f9b1 | Guido Trotter | else:
|
440 | eb58f9b1 | Guido Trotter | boot_val = ''
|
441 | eb58f9b1 | Guido Trotter | |
442 | 19572932 | Iustin Pop | drive_val = 'file=%s,format=raw%s%s%s' % (dev_path, if_val, boot_val,
|
443 | 19572932 | Iustin Pop | cache_val) |
444 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-drive', drive_val])
|
445 | eb58f9b1 | Guido Trotter | |
446 | a985b417 | Iustin Pop | iso_image = hvp[constants.HV_CDROM_IMAGE_PATH] |
447 | 66d5dbef | Guido Trotter | if iso_image:
|
448 | 9dd363eb | Guido Trotter | options = ',format=raw,media=cdrom'
|
449 | 66d5dbef | Guido Trotter | if boot_cdrom:
|
450 | 9dd363eb | Guido Trotter | kvm_cmd.extend(['-boot', 'd']) |
451 | 9cf4321f | Apollon Oikonomopoulos | if disk_type != constants.HT_DISK_IDE:
|
452 | 74a4c11b | Guido Trotter | options = '%s,boot=on' % options
|
453 | 9dd363eb | Guido Trotter | else:
|
454 | 9cf4321f | Apollon Oikonomopoulos | if disk_type == constants.HT_DISK_PARAVIRTUAL:
|
455 | 9cf4321f | Apollon Oikonomopoulos | if_val = ',if=virtio'
|
456 | 9cf4321f | Apollon Oikonomopoulos | else:
|
457 | 9cf4321f | Apollon Oikonomopoulos | if_val = ',if=%s' % disk_type
|
458 | 9cf4321f | Apollon Oikonomopoulos | options = '%s%s' % (options, if_val)
|
459 | 66d5dbef | Guido Trotter | drive_val = 'file=%s%s' % (iso_image, options)
|
460 | 66d5dbef | Guido Trotter | kvm_cmd.extend(['-drive', drive_val])
|
461 | 66d5dbef | Guido Trotter | |
462 | a985b417 | Iustin Pop | kernel_path = hvp[constants.HV_KERNEL_PATH] |
463 | df5ab9f0 | Guido Trotter | if kernel_path:
|
464 | df5ab9f0 | Guido Trotter | kvm_cmd.extend(['-kernel', kernel_path])
|
465 | a985b417 | Iustin Pop | initrd_path = hvp[constants.HV_INITRD_PATH] |
466 | df5ab9f0 | Guido Trotter | if initrd_path:
|
467 | df5ab9f0 | Guido Trotter | kvm_cmd.extend(['-initrd', initrd_path])
|
468 | 07813a9e | Iustin Pop | root_append = ['root=%s' % hvp[constants.HV_ROOT_PATH],
|
469 | 07813a9e | Iustin Pop | hvp[constants.HV_KERNEL_ARGS]] |
470 | 07813a9e | Iustin Pop | if hvp[constants.HV_SERIAL_CONSOLE]:
|
471 | 07813a9e | Iustin Pop | root_append.append('console=ttyS0,38400')
|
472 | 07813a9e | Iustin Pop | kvm_cmd.extend(['-append', ' '.join(root_append)]) |
473 | eb58f9b1 | Guido Trotter | |
474 | a985b417 | Iustin Pop | mouse_type = hvp[constants.HV_USB_MOUSE] |
475 | 11344a50 | Guido Trotter | if mouse_type:
|
476 | 11344a50 | Guido Trotter | kvm_cmd.extend(['-usb'])
|
477 | 11344a50 | Guido Trotter | kvm_cmd.extend(['-usbdevice', mouse_type])
|
478 | 11344a50 | Guido Trotter | |
479 | a985b417 | Iustin Pop | vnc_bind_address = hvp[constants.HV_VNC_BIND_ADDRESS] |
480 | 8470c8db | Guido Trotter | if vnc_bind_address:
|
481 | 8447f52b | Guido Trotter | if utils.IsValidIP(vnc_bind_address):
|
482 | 377d74c9 | Guido Trotter | if instance.network_port > constants.VNC_BASE_PORT:
|
483 | 377d74c9 | Guido Trotter | display = instance.network_port - constants.VNC_BASE_PORT |
484 | 8447f52b | Guido Trotter | if vnc_bind_address == '0.0.0.0': |
485 | 8447f52b | Guido Trotter | vnc_arg = ':%d' % (display)
|
486 | 8447f52b | Guido Trotter | else:
|
487 | 19498d6c | Guido Trotter | vnc_arg = '%s:%d' % (vnc_bind_address, display)
|
488 | 8470c8db | Guido Trotter | else:
|
489 | 8447f52b | Guido Trotter | logging.error("Network port is not a valid VNC display (%d < %d)."
|
490 | 07b8a2b5 | Iustin Pop | " Not starting VNC", instance.network_port,
|
491 | 07b8a2b5 | Iustin Pop | constants.VNC_BASE_PORT) |
492 | 8447f52b | Guido Trotter | vnc_arg = 'none'
|
493 | 8b2d1013 | Guido Trotter | |
494 | 8b2d1013 | Guido Trotter | # Only allow tls and other option when not binding to a file, for now.
|
495 | 8b2d1013 | Guido Trotter | # kvm/qemu gets confused otherwise about the filename to use.
|
496 | 8b2d1013 | Guido Trotter | vnc_append = ''
|
497 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_TLS]:
|
498 | 8b2d1013 | Guido Trotter | vnc_append = '%s,tls' % vnc_append
|
499 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_X509_VERIFY]:
|
500 | 8b2d1013 | Guido Trotter | vnc_append = '%s,x509verify=%s' % (vnc_append,
|
501 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
502 | a985b417 | Iustin Pop | elif hvp[constants.HV_VNC_X509]:
|
503 | 8b2d1013 | Guido Trotter | vnc_append = '%s,x509=%s' % (vnc_append,
|
504 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
505 | 6e6bb8d5 | Guido Trotter | if hvp[constants.HV_VNC_PASSWORD_FILE]:
|
506 | 6e6bb8d5 | Guido Trotter | vnc_append = '%s,password' % vnc_append
|
507 | 6e6bb8d5 | Guido Trotter | |
508 | 8b2d1013 | Guido Trotter | vnc_arg = '%s%s' % (vnc_arg, vnc_append)
|
509 | 8b2d1013 | Guido Trotter | |
510 | 8470c8db | Guido Trotter | else:
|
511 | 8b2d1013 | Guido Trotter | vnc_arg = 'unix:%s/%s.vnc' % (vnc_bind_address, instance.name)
|
512 | 8b2d1013 | Guido Trotter | |
513 | 8447f52b | Guido Trotter | kvm_cmd.extend(['-vnc', vnc_arg])
|
514 | 5b062a58 | Apollon Oikonomopoulos | |
515 | 5b062a58 | Apollon Oikonomopoulos | # Also add a tablet USB device to act as a mouse
|
516 | 5b062a58 | Apollon Oikonomopoulos | # This solves various mouse alignment issues
|
517 | 5b062a58 | Apollon Oikonomopoulos | kvm_cmd.extend(['-usbdevice', 'tablet']) |
518 | 8470c8db | Guido Trotter | else:
|
519 | 8470c8db | Guido Trotter | kvm_cmd.extend(['-nographic'])
|
520 | 8470c8db | Guido Trotter | |
521 | 69b99987 | Michael Hanselmann | monitor_dev = ("unix:%s,server,nowait" %
|
522 | 69b99987 | Michael Hanselmann | self._InstanceMonitor(instance.name))
|
523 | eb58f9b1 | Guido Trotter | kvm_cmd.extend(['-monitor', monitor_dev])
|
524 | a985b417 | Iustin Pop | if hvp[constants.HV_SERIAL_CONSOLE]:
|
525 | a985b417 | Iustin Pop | serial_dev = ('unix:%s,server,nowait' %
|
526 | a985b417 | Iustin Pop | self._InstanceSerial(instance.name))
|
527 | a2faf9ee | Guido Trotter | kvm_cmd.extend(['-serial', serial_dev])
|
528 | a2faf9ee | Guido Trotter | else:
|
529 | a2faf9ee | Guido Trotter | kvm_cmd.extend(['-serial', 'none']) |
530 | eb58f9b1 | Guido Trotter | |
531 | 6b970cef | Jun Futagawa | if hvp[constants.HV_USE_LOCALTIME]:
|
532 | 6b970cef | Jun Futagawa | kvm_cmd.extend(['-localtime'])
|
533 | 6b970cef | Jun Futagawa | |
534 | ee5f20b0 | Guido Trotter | # Save the current instance nics, but defer their expansion as parameters,
|
535 | ee5f20b0 | Guido Trotter | # as we'll need to generate executable temp files for them.
|
536 | ee5f20b0 | Guido Trotter | kvm_nics = instance.nics |
537 | a985b417 | Iustin Pop | hvparams = hvp |
538 | ee5f20b0 | Guido Trotter | |
539 | c2672466 | Guido Trotter | return (kvm_cmd, kvm_nics, hvparams)
|
540 | ee5f20b0 | Guido Trotter | |
541 | 38e250ba | Guido Trotter | def _WriteKVMRuntime(self, instance_name, data): |
542 | 38e250ba | Guido Trotter | """Write an instance's KVM runtime
|
543 | 38e250ba | Guido Trotter |
|
544 | 38e250ba | Guido Trotter | """
|
545 | 38e250ba | Guido Trotter | try:
|
546 | 38e250ba | Guido Trotter | utils.WriteFile(self._InstanceKVMRuntime(instance_name),
|
547 | 38e250ba | Guido Trotter | data=data) |
548 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
549 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to save KVM runtime file: %s" % err) |
550 | 38e250ba | Guido Trotter | |
551 | 38e250ba | Guido Trotter | def _ReadKVMRuntime(self, instance_name): |
552 | 38e250ba | Guido Trotter | """Read an instance's KVM runtime
|
553 | 38e250ba | Guido Trotter |
|
554 | 38e250ba | Guido Trotter | """
|
555 | 38e250ba | Guido Trotter | try:
|
556 | 38e250ba | Guido Trotter | file_content = utils.ReadFile(self._InstanceKVMRuntime(instance_name))
|
557 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
558 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to load KVM runtime file: %s" % err) |
559 | 38e250ba | Guido Trotter | return file_content
|
560 | 38e250ba | Guido Trotter | |
561 | 38e250ba | Guido Trotter | def _SaveKVMRuntime(self, instance, kvm_runtime): |
562 | 38e250ba | Guido Trotter | """Save an instance's KVM runtime
|
563 | 38e250ba | Guido Trotter |
|
564 | 38e250ba | Guido Trotter | """
|
565 | c2672466 | Guido Trotter | kvm_cmd, kvm_nics, hvparams = kvm_runtime |
566 | 38e250ba | Guido Trotter | serialized_nics = [nic.ToDict() for nic in kvm_nics] |
567 | c2672466 | Guido Trotter | serialized_form = serializer.Dump((kvm_cmd, serialized_nics, hvparams)) |
568 | 38e250ba | Guido Trotter | self._WriteKVMRuntime(instance.name, serialized_form)
|
569 | 38e250ba | Guido Trotter | |
570 | 30e42c4e | Guido Trotter | def _LoadKVMRuntime(self, instance, serialized_runtime=None): |
571 | 38e250ba | Guido Trotter | """Load an instance's KVM runtime
|
572 | 38e250ba | Guido Trotter |
|
573 | 38e250ba | Guido Trotter | """
|
574 | 30e42c4e | Guido Trotter | if not serialized_runtime: |
575 | 30e42c4e | Guido Trotter | serialized_runtime = self._ReadKVMRuntime(instance.name)
|
576 | 30e42c4e | Guido Trotter | loaded_runtime = serializer.Load(serialized_runtime) |
577 | c2672466 | Guido Trotter | kvm_cmd, serialized_nics, hvparams = loaded_runtime |
578 | 38e250ba | Guido Trotter | kvm_nics = [objects.NIC.FromDict(snic) for snic in serialized_nics] |
579 | c2672466 | Guido Trotter | return (kvm_cmd, kvm_nics, hvparams)
|
580 | 38e250ba | Guido Trotter | |
581 | 76431533 | Guido Trotter | def _RunKVMCmd(self, name, kvm_cmd): |
582 | 76431533 | Guido Trotter | """Run the KVM cmd and check for errors
|
583 | 76431533 | Guido Trotter |
|
584 | 76431533 | Guido Trotter | @type name: string
|
585 | 76431533 | Guido Trotter | @param name: instance name
|
586 | 76431533 | Guido Trotter | @type kvm_cmd: list of strings
|
587 | 76431533 | Guido Trotter | @param kvm_cmd: runcmd input for kvm
|
588 | 76431533 | Guido Trotter |
|
589 | 76431533 | Guido Trotter | """
|
590 | 76431533 | Guido Trotter | result = utils.RunCmd(kvm_cmd) |
591 | 76431533 | Guido Trotter | if result.failed:
|
592 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s: %s (%s)" % |
593 | 76431533 | Guido Trotter | (name, result.fail_reason, result.output)) |
594 | 76431533 | Guido Trotter | if not self._InstancePidAlive(name)[2]: |
595 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s" % name) |
596 | 76431533 | Guido Trotter | |
597 | 30e42c4e | Guido Trotter | def _ExecuteKVMRuntime(self, instance, kvm_runtime, incoming=None): |
598 | ee5f20b0 | Guido Trotter | """Execute a KVM cmd, after completing it with some last minute data
|
599 | ee5f20b0 | Guido Trotter |
|
600 | 30e42c4e | Guido Trotter | @type incoming: tuple of strings
|
601 | 30e42c4e | Guido Trotter | @param incoming: (target_host_ip, port)
|
602 | 30e42c4e | Guido Trotter |
|
603 | ee5f20b0 | Guido Trotter | """
|
604 | 6e6bb8d5 | Guido Trotter | hvp = instance.hvparams |
605 | 5905901c | Iustin Pop | name = instance.name |
606 | 5905901c | Iustin Pop | self._CheckDown(name)
|
607 | ee5f20b0 | Guido Trotter | |
608 | ee5f20b0 | Guido Trotter | temp_files = [] |
609 | ee5f20b0 | Guido Trotter | |
610 | c2672466 | Guido Trotter | kvm_cmd, kvm_nics, hvparams = kvm_runtime |
611 | ee5f20b0 | Guido Trotter | |
612 | cef34868 | Guido Trotter | security_model = hvp[constants.HV_SECURITY_MODEL] |
613 | cef34868 | Guido Trotter | if security_model == constants.HT_SM_USER:
|
614 | cef34868 | Guido Trotter | kvm_cmd.extend(["-runas", hvp[constants.HV_SECURITY_DOMAIN]])
|
615 | cef34868 | Guido Trotter | |
616 | ee5f20b0 | Guido Trotter | if not kvm_nics: |
617 | fbe27e2b | Guido Trotter | kvm_cmd.extend(["-net", "none"]) |
618 | ee5f20b0 | Guido Trotter | else:
|
619 | fbe27e2b | Guido Trotter | tap_extra = ""
|
620 | 37f88dc6 | Guido Trotter | nic_type = hvparams[constants.HV_NIC_TYPE] |
621 | 37f88dc6 | Guido Trotter | if nic_type == constants.HT_NIC_PARAVIRTUAL:
|
622 | 37f88dc6 | Guido Trotter | nic_model = "model=virtio"
|
623 | fbe27e2b | Guido Trotter | if hvparams[constants.HV_VHOST_NET]:
|
624 | fbe27e2b | Guido Trotter | tap_extra = ",vhost=on"
|
625 | 37f88dc6 | Guido Trotter | else:
|
626 | 37f88dc6 | Guido Trotter | nic_model = "model=%s" % nic_type
|
627 | 37f88dc6 | Guido Trotter | |
628 | ee5f20b0 | Guido Trotter | for nic_seq, nic in enumerate(kvm_nics): |
629 | 760570a8 | Timothy Kuhlman | nic_val = "nic,vlan=%s,macaddr=%s,%s" % (nic_seq, nic.mac, nic_model)
|
630 | ee5f20b0 | Guido Trotter | script = self._WriteNetScript(instance, nic_seq, nic)
|
631 | fbe27e2b | Guido Trotter | tap_val = "tap,vlan=%s,script=%s%s" % (nic_seq, script, tap_extra)
|
632 | fbe27e2b | Guido Trotter | kvm_cmd.extend(["-net", nic_val])
|
633 | fbe27e2b | Guido Trotter | kvm_cmd.extend(["-net", tap_val])
|
634 | ee5f20b0 | Guido Trotter | temp_files.append(script) |
635 | ee5f20b0 | Guido Trotter | |
636 | 30e42c4e | Guido Trotter | if incoming:
|
637 | 30e42c4e | Guido Trotter | target, port = incoming |
638 | 30e42c4e | Guido Trotter | kvm_cmd.extend(['-incoming', 'tcp:%s:%s' % (target, port)]) |
639 | 30e42c4e | Guido Trotter | |
640 | 6e6bb8d5 | Guido Trotter | vnc_pwd_file = hvp[constants.HV_VNC_PASSWORD_FILE] |
641 | 6e6bb8d5 | Guido Trotter | vnc_pwd = None
|
642 | 6e6bb8d5 | Guido Trotter | if vnc_pwd_file:
|
643 | 6e6bb8d5 | Guido Trotter | try:
|
644 | 682f7601 | Guido Trotter | vnc_pwd = utils.ReadOneLineFile(vnc_pwd_file, strict=True)
|
645 | 6e6bb8d5 | Guido Trotter | except EnvironmentError, err: |
646 | 6e6bb8d5 | Guido Trotter | raise errors.HypervisorError("Failed to open VNC password file %s: %s" |
647 | 6e6bb8d5 | Guido Trotter | % (vnc_pwd_file, err)) |
648 | 6e6bb8d5 | Guido Trotter | |
649 | 76431533 | Guido Trotter | if security_model == constants.HT_SM_POOL:
|
650 | 76431533 | Guido Trotter | ss = ssconf.SimpleStore() |
651 | 76431533 | Guido Trotter | uid_pool = uidpool.ParseUidPool(ss.GetUidPool(), separator="\n")
|
652 | 76431533 | Guido Trotter | all_uids = set(uidpool.ExpandUidPool(uid_pool))
|
653 | 76431533 | Guido Trotter | uid = uidpool.RequestUnusedUid(all_uids) |
654 | 76431533 | Guido Trotter | try:
|
655 | 76431533 | Guido Trotter | username = pwd.getpwuid(uid.GetUid()).pw_name |
656 | 76431533 | Guido Trotter | kvm_cmd.extend(["-runas", username])
|
657 | 76431533 | Guido Trotter | self._RunKVMCmd(name, kvm_cmd)
|
658 | 76431533 | Guido Trotter | except:
|
659 | 76431533 | Guido Trotter | uidpool.ReleaseUid(uid) |
660 | 76431533 | Guido Trotter | raise
|
661 | 76431533 | Guido Trotter | else:
|
662 | 76431533 | Guido Trotter | uid.Unlock() |
663 | 76431533 | Guido Trotter | utils.WriteFile(self._InstanceUidFile(name), data=str(uid)) |
664 | 76431533 | Guido Trotter | else:
|
665 | 76431533 | Guido Trotter | self._RunKVMCmd(name, kvm_cmd)
|
666 | eb58f9b1 | Guido Trotter | |
667 | 6e6bb8d5 | Guido Trotter | if vnc_pwd:
|
668 | 6e6bb8d5 | Guido Trotter | change_cmd = 'change vnc password %s' % vnc_pwd
|
669 | 6e6bb8d5 | Guido Trotter | self._CallMonitorCommand(instance.name, change_cmd)
|
670 | 6e6bb8d5 | Guido Trotter | |
671 | 08137f9e | Iustin Pop | for filename in temp_files: |
672 | 08137f9e | Iustin Pop | utils.RemoveFile(filename) |
673 | eb58f9b1 | Guido Trotter | |
674 | 07813a9e | Iustin Pop | def StartInstance(self, instance, block_devices): |
675 | ee5f20b0 | Guido Trotter | """Start an instance.
|
676 | ee5f20b0 | Guido Trotter |
|
677 | ee5f20b0 | Guido Trotter | """
|
678 | 5905901c | Iustin Pop | self._CheckDown(instance.name)
|
679 | 07813a9e | Iustin Pop | kvm_runtime = self._GenerateKVMRuntime(instance, block_devices)
|
680 | 38e250ba | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
681 | ee5f20b0 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime)
|
682 | ee5f20b0 | Guido Trotter | |
683 | 6567aff3 | Guido Trotter | def _CallMonitorCommand(self, instance_name, command): |
684 | 6567aff3 | Guido Trotter | """Invoke a command on the instance monitor.
|
685 | 6567aff3 | Guido Trotter |
|
686 | 6567aff3 | Guido Trotter | """
|
687 | 6567aff3 | Guido Trotter | socat = ("echo %s | %s STDIO UNIX-CONNECT:%s" %
|
688 | 6567aff3 | Guido Trotter | (utils.ShellQuote(command), |
689 | 6567aff3 | Guido Trotter | constants.SOCAT_PATH, |
690 | 6567aff3 | Guido Trotter | utils.ShellQuote(self._InstanceMonitor(instance_name))))
|
691 | 6567aff3 | Guido Trotter | result = utils.RunCmd(socat) |
692 | 6567aff3 | Guido Trotter | if result.failed:
|
693 | 6567aff3 | Guido Trotter | msg = ("Failed to send command '%s' to instance %s."
|
694 | 6567aff3 | Guido Trotter | " output: %s, error: %s, fail_reason: %s" %
|
695 | 9798fcae | Guido Trotter | (command, instance_name, |
696 | 9798fcae | Guido Trotter | result.stdout, result.stderr, result.fail_reason)) |
697 | 6567aff3 | Guido Trotter | raise errors.HypervisorError(msg)
|
698 | 6567aff3 | Guido Trotter | |
699 | 6567aff3 | Guido Trotter | return result
|
700 | 6567aff3 | Guido Trotter | |
701 | bbcf7ad0 | Iustin Pop | def StopInstance(self, instance, force=False, retry=False, name=None): |
702 | eb58f9b1 | Guido Trotter | """Stop an instance.
|
703 | eb58f9b1 | Guido Trotter |
|
704 | eb58f9b1 | Guido Trotter | """
|
705 | bbcf7ad0 | Iustin Pop | if name is not None and not force: |
706 | bbcf7ad0 | Iustin Pop | raise errors.HypervisorError("Cannot shutdown cleanly by name only") |
707 | bbcf7ad0 | Iustin Pop | if name is None: |
708 | bbcf7ad0 | Iustin Pop | name = instance.name |
709 | bbcf7ad0 | Iustin Pop | acpi = instance.hvparams[constants.HV_ACPI] |
710 | bbcf7ad0 | Iustin Pop | else:
|
711 | bbcf7ad0 | Iustin Pop | acpi = False
|
712 | 8904b35c | Guido Trotter | _, pid, alive = self._InstancePidAlive(name)
|
713 | 1f8b3a27 | Guido Trotter | if pid > 0 and alive: |
714 | bbcf7ad0 | Iustin Pop | if force or not acpi: |
715 | eb58f9b1 | Guido Trotter | utils.KillProcess(pid) |
716 | eb58f9b1 | Guido Trotter | else:
|
717 | bbcf7ad0 | Iustin Pop | self._CallMonitorCommand(name, 'system_powerdown') |
718 | eb58f9b1 | Guido Trotter | |
719 | 8904b35c | Guido Trotter | def CleanupInstance(self, instance_name): |
720 | 8904b35c | Guido Trotter | """Cleanup after a stopped instance
|
721 | 8904b35c | Guido Trotter |
|
722 | 8904b35c | Guido Trotter | """
|
723 | 8904b35c | Guido Trotter | pidfile, pid, alive = self._InstancePidAlive(instance_name)
|
724 | 8904b35c | Guido Trotter | if pid > 0 and alive: |
725 | 8904b35c | Guido Trotter | raise errors.HypervisorError("Cannot cleanup a live instance") |
726 | 8904b35c | Guido Trotter | self._RemoveInstanceRuntimeFiles(pidfile, instance_name)
|
727 | eb58f9b1 | Guido Trotter | |
728 | eb58f9b1 | Guido Trotter | def RebootInstance(self, instance): |
729 | eb58f9b1 | Guido Trotter | """Reboot an instance.
|
730 | eb58f9b1 | Guido Trotter |
|
731 | eb58f9b1 | Guido Trotter | """
|
732 | eb58f9b1 | Guido Trotter | # For some reason if we do a 'send-key ctrl-alt-delete' to the control
|
733 | eb58f9b1 | Guido Trotter | # socket the instance will stop, but now power up again. So we'll resort
|
734 | eb58f9b1 | Guido Trotter | # to shutdown and restart.
|
735 | 1122eb25 | Iustin Pop | _, _, alive = self._InstancePidAlive(instance.name)
|
736 | 1f8b3a27 | Guido Trotter | if not alive: |
737 | 78411c60 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s:" |
738 | 78411c60 | Iustin Pop | " not running" % instance.name)
|
739 | f02881e0 | Guido Trotter | # StopInstance will delete the saved KVM runtime so:
|
740 | f02881e0 | Guido Trotter | # ...first load it...
|
741 | f02881e0 | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance)
|
742 | f02881e0 | Guido Trotter | # ...now we can safely call StopInstance...
|
743 | f02881e0 | Guido Trotter | if not self.StopInstance(instance): |
744 | f02881e0 | Guido Trotter | self.StopInstance(instance, force=True) |
745 | f02881e0 | Guido Trotter | # ...and finally we can save it again, and execute it...
|
746 | f02881e0 | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
747 | f02881e0 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime)
|
748 | eb58f9b1 | Guido Trotter | |
749 | 30e42c4e | Guido Trotter | def MigrationInfo(self, instance): |
750 | 30e42c4e | Guido Trotter | """Get instance information to perform a migration.
|
751 | 30e42c4e | Guido Trotter |
|
752 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
753 | 30e42c4e | Guido Trotter | @param instance: instance to be migrated
|
754 | 30e42c4e | Guido Trotter | @rtype: string
|
755 | 30e42c4e | Guido Trotter | @return: content of the KVM runtime file
|
756 | 30e42c4e | Guido Trotter |
|
757 | 30e42c4e | Guido Trotter | """
|
758 | 30e42c4e | Guido Trotter | return self._ReadKVMRuntime(instance.name) |
759 | 30e42c4e | Guido Trotter | |
760 | 30e42c4e | Guido Trotter | def AcceptInstance(self, instance, info, target): |
761 | 30e42c4e | Guido Trotter | """Prepare to accept an instance.
|
762 | 30e42c4e | Guido Trotter |
|
763 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
764 | 30e42c4e | Guido Trotter | @param instance: instance to be accepted
|
765 | 30e42c4e | Guido Trotter | @type info: string
|
766 | 30e42c4e | Guido Trotter | @param info: content of the KVM runtime file on the source node
|
767 | 30e42c4e | Guido Trotter | @type target: string
|
768 | 30e42c4e | Guido Trotter | @param target: target host (usually ip), on this node
|
769 | 30e42c4e | Guido Trotter |
|
770 | 30e42c4e | Guido Trotter | """
|
771 | 30e42c4e | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance, serialized_runtime=info)
|
772 | 641ae041 | Iustin Pop | incoming_address = (target, instance.hvparams[constants.HV_MIGRATION_PORT]) |
773 | 30e42c4e | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime, incoming=incoming_address)
|
774 | 30e42c4e | Guido Trotter | |
775 | 30e42c4e | Guido Trotter | def FinalizeMigration(self, instance, info, success): |
776 | 30e42c4e | Guido Trotter | """Finalize an instance migration.
|
777 | 30e42c4e | Guido Trotter |
|
778 | 30e42c4e | Guido Trotter | Stop the incoming mode KVM.
|
779 | 30e42c4e | Guido Trotter |
|
780 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
781 | 30e42c4e | Guido Trotter | @param instance: instance whose migration is being aborted
|
782 | 30e42c4e | Guido Trotter |
|
783 | 30e42c4e | Guido Trotter | """
|
784 | 30e42c4e | Guido Trotter | if success:
|
785 | 30e42c4e | Guido Trotter | self._WriteKVMRuntime(instance.name, info)
|
786 | 30e42c4e | Guido Trotter | else:
|
787 | 30e42c4e | Guido Trotter | self.StopInstance(instance, force=True) |
788 | 30e42c4e | Guido Trotter | |
789 | 58d38b02 | Iustin Pop | def MigrateInstance(self, instance, target, live): |
790 | 30e42c4e | Guido Trotter | """Migrate an instance to a target node.
|
791 | 30e42c4e | Guido Trotter |
|
792 | 30e42c4e | Guido Trotter | The migration will not be attempted if the instance is not
|
793 | 30e42c4e | Guido Trotter | currently running.
|
794 | 30e42c4e | Guido Trotter |
|
795 | 58d38b02 | Iustin Pop | @type instance: L{objects.Instance}
|
796 | 58d38b02 | Iustin Pop | @param instance: the instance to be migrated
|
797 | 30e42c4e | Guido Trotter | @type target: string
|
798 | 30e42c4e | Guido Trotter | @param target: ip address of the target node
|
799 | 30e42c4e | Guido Trotter | @type live: boolean
|
800 | 30e42c4e | Guido Trotter | @param live: perform a live migration
|
801 | 30e42c4e | Guido Trotter |
|
802 | 30e42c4e | Guido Trotter | """
|
803 | 58d38b02 | Iustin Pop | instance_name = instance.name |
804 | 50716be0 | Iustin Pop | port = instance.hvparams[constants.HV_MIGRATION_PORT] |
805 | 30e42c4e | Guido Trotter | pidfile, pid, alive = self._InstancePidAlive(instance_name)
|
806 | 30e42c4e | Guido Trotter | if not alive: |
807 | 30e42c4e | Guido Trotter | raise errors.HypervisorError("Instance not running, cannot migrate") |
808 | 30e42c4e | Guido Trotter | |
809 | 50716be0 | Iustin Pop | if not utils.TcpPing(target, port, live_port_needed=True): |
810 | 50716be0 | Iustin Pop | raise errors.HypervisorError("Remote host %s not listening on port" |
811 | 50716be0 | Iustin Pop | " %s, cannot migrate" % (target, port))
|
812 | 50716be0 | Iustin Pop | |
813 | 30e42c4e | Guido Trotter | if not live: |
814 | 30e42c4e | Guido Trotter | self._CallMonitorCommand(instance_name, 'stop') |
815 | 30e42c4e | Guido Trotter | |
816 | e43d4f9f | Apollon Oikonomopoulos | migrate_command = ('migrate_set_speed %dm' %
|
817 | e43d4f9f | Apollon Oikonomopoulos | instance.hvparams[constants.HV_MIGRATION_BANDWIDTH]) |
818 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
819 | e43d4f9f | Apollon Oikonomopoulos | |
820 | e43d4f9f | Apollon Oikonomopoulos | migrate_command = ('migrate_set_downtime %dms' %
|
821 | e43d4f9f | Apollon Oikonomopoulos | instance.hvparams[constants.HV_MIGRATION_DOWNTIME]) |
822 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
823 | e43d4f9f | Apollon Oikonomopoulos | |
824 | 641ae041 | Iustin Pop | migrate_command = 'migrate -d tcp:%s:%s' % (target, port)
|
825 | 30e42c4e | Guido Trotter | self._CallMonitorCommand(instance_name, migrate_command)
|
826 | 30e42c4e | Guido Trotter | |
827 | 30e42c4e | Guido Trotter | info_command = 'info migrate'
|
828 | 30e42c4e | Guido Trotter | done = False
|
829 | c4e388a5 | Guido Trotter | broken_answers = 0
|
830 | 30e42c4e | Guido Trotter | while not done: |
831 | 30e42c4e | Guido Trotter | result = self._CallMonitorCommand(instance_name, info_command)
|
832 | 30e42c4e | Guido Trotter | match = self._MIGRATION_STATUS_RE.search(result.stdout)
|
833 | 30e42c4e | Guido Trotter | if not match: |
834 | c4e388a5 | Guido Trotter | broken_answers += 1
|
835 | c4e388a5 | Guido Trotter | if not result.stdout: |
836 | c4e388a5 | Guido Trotter | logging.info("KVM: empty 'info migrate' result")
|
837 | c4e388a5 | Guido Trotter | else:
|
838 | e4dd2299 | Guido Trotter | logging.warning("KVM: unknown 'info migrate' result: %s",
|
839 | c4e388a5 | Guido Trotter | result.stdout) |
840 | c4e388a5 | Guido Trotter | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
841 | 30e42c4e | Guido Trotter | else:
|
842 | 30e42c4e | Guido Trotter | status = match.group(1)
|
843 | 30e42c4e | Guido Trotter | if status == 'completed': |
844 | 30e42c4e | Guido Trotter | done = True
|
845 | 30e42c4e | Guido Trotter | elif status == 'active': |
846 | c4e388a5 | Guido Trotter | # reset the broken answers count
|
847 | c4e388a5 | Guido Trotter | broken_answers = 0
|
848 | c4e388a5 | Guido Trotter | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
849 | c087266c | Guido Trotter | elif status == 'failed' or status == 'cancelled': |
850 | c087266c | Guido Trotter | if not live: |
851 | c087266c | Guido Trotter | self._CallMonitorCommand(instance_name, 'cont') |
852 | c087266c | Guido Trotter | raise errors.HypervisorError("Migration %s at the kvm level" % |
853 | c087266c | Guido Trotter | status) |
854 | 30e42c4e | Guido Trotter | else:
|
855 | c4e388a5 | Guido Trotter | logging.warning("KVM: unknown migration status '%s'", status)
|
856 | c4e388a5 | Guido Trotter | broken_answers += 1
|
857 | c4e388a5 | Guido Trotter | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
858 | c4e388a5 | Guido Trotter | if broken_answers >= self._MIGRATION_INFO_MAX_BAD_ANSWERS: |
859 | c4e388a5 | Guido Trotter | raise errors.HypervisorError("Too many 'info migrate' broken answers") |
860 | 30e42c4e | Guido Trotter | |
861 | 30e42c4e | Guido Trotter | utils.KillProcess(pid) |
862 | 7b381438 | Guido Trotter | self._RemoveInstanceRuntimeFiles(pidfile, instance_name)
|
863 | 30e42c4e | Guido Trotter | |
864 | eb58f9b1 | Guido Trotter | def GetNodeInfo(self): |
865 | eb58f9b1 | Guido Trotter | """Return information about the node.
|
866 | eb58f9b1 | Guido Trotter |
|
867 | 572e52bf | Iustin Pop | This is just a wrapper over the base GetLinuxNodeInfo method.
|
868 | 572e52bf | Iustin Pop |
|
869 | c41eea6e | Iustin Pop | @return: a dict with the following keys (values in MiB):
|
870 | c41eea6e | Iustin Pop | - memory_total: the total memory size on the node
|
871 | c41eea6e | Iustin Pop | - memory_free: the available memory on the node for instances
|
872 | c41eea6e | Iustin Pop | - memory_dom0: the memory used by the node itself, if available
|
873 | eb58f9b1 | Guido Trotter |
|
874 | eb58f9b1 | Guido Trotter | """
|
875 | 572e52bf | Iustin Pop | return self.GetLinuxNodeInfo() |
876 | eb58f9b1 | Guido Trotter | |
877 | 637ce7f9 | Guido Trotter | @classmethod
|
878 | 5431b2e4 | Guido Trotter | def GetShellCommandForConsole(cls, instance, hvparams, beparams): |
879 | eb58f9b1 | Guido Trotter | """Return a command for connecting to the console of an instance.
|
880 | eb58f9b1 | Guido Trotter |
|
881 | eb58f9b1 | Guido Trotter | """
|
882 | a2faf9ee | Guido Trotter | if hvparams[constants.HV_SERIAL_CONSOLE]:
|
883 | 86d6bc2a | Guido Trotter | shell_command = ("%s STDIO,%s UNIX-CONNECT:%s" %
|
884 | 86d6bc2a | Guido Trotter | (constants.SOCAT_PATH, cls._SocatUnixConsoleParams(), |
885 | a2faf9ee | Guido Trotter | utils.ShellQuote(cls._InstanceSerial(instance.name)))) |
886 | a2faf9ee | Guido Trotter | else:
|
887 | a2faf9ee | Guido Trotter | shell_command = "echo 'No serial shell for instance %s'" % instance.name
|
888 | 3be34f57 | Guido Trotter | |
889 | 3be34f57 | Guido Trotter | vnc_bind_address = hvparams[constants.HV_VNC_BIND_ADDRESS] |
890 | 3be34f57 | Guido Trotter | if vnc_bind_address:
|
891 | 377d74c9 | Guido Trotter | if instance.network_port > constants.VNC_BASE_PORT:
|
892 | 377d74c9 | Guido Trotter | display = instance.network_port - constants.VNC_BASE_PORT |
893 | 3be34f57 | Guido Trotter | vnc_command = ("echo 'Instance has VNC listening on %s:%d"
|
894 | 3be34f57 | Guido Trotter | " (display: %d)'" % (vnc_bind_address,
|
895 | 3be34f57 | Guido Trotter | instance.network_port, |
896 | 3be34f57 | Guido Trotter | display)) |
897 | 3be34f57 | Guido Trotter | shell_command = "%s; %s" % (vnc_command, shell_command)
|
898 | 3be34f57 | Guido Trotter | |
899 | a2faf9ee | Guido Trotter | return shell_command
|
900 | eb58f9b1 | Guido Trotter | |
901 | eb58f9b1 | Guido Trotter | def Verify(self): |
902 | eb58f9b1 | Guido Trotter | """Verify the hypervisor.
|
903 | eb58f9b1 | Guido Trotter |
|
904 | eb58f9b1 | Guido Trotter | Check that the binary exists.
|
905 | eb58f9b1 | Guido Trotter |
|
906 | eb58f9b1 | Guido Trotter | """
|
907 | eb58f9b1 | Guido Trotter | if not os.path.exists(constants.KVM_PATH): |
908 | eb58f9b1 | Guido Trotter | return "The kvm binary ('%s') does not exist." % constants.KVM_PATH |
909 | 14aa53cb | Guido Trotter | if not os.path.exists(constants.SOCAT_PATH): |
910 | 14aa53cb | Guido Trotter | return "The socat binary ('%s') does not exist." % constants.SOCAT_PATH |
911 | 14aa53cb | Guido Trotter | |
912 | 6b5605e8 | Iustin Pop | |
913 | 6b5605e8 | Iustin Pop | @classmethod
|
914 | 6b5605e8 | Iustin Pop | def CheckParameterSyntax(cls, hvparams): |
915 | 6b5605e8 | Iustin Pop | """Check the given parameters for validity.
|
916 | 6b5605e8 | Iustin Pop |
|
917 | 6b5605e8 | Iustin Pop | @type hvparams: dict
|
918 | 6b5605e8 | Iustin Pop | @param hvparams: dictionary with parameter names/value
|
919 | 6b5605e8 | Iustin Pop | @raise errors.HypervisorError: when a parameter is not valid
|
920 | 6b5605e8 | Iustin Pop |
|
921 | 6b5605e8 | Iustin Pop | """
|
922 | 47387b1e | Guido Trotter | super(KVMHypervisor, cls).CheckParameterSyntax(hvparams)
|
923 | 6b5605e8 | Iustin Pop | |
924 | df5ab9f0 | Guido Trotter | kernel_path = hvparams[constants.HV_KERNEL_PATH] |
925 | df5ab9f0 | Guido Trotter | if kernel_path:
|
926 | df5ab9f0 | Guido Trotter | if not hvparams[constants.HV_ROOT_PATH]: |
927 | 205ab586 | Iustin Pop | raise errors.HypervisorError("Need a root partition for the instance," |
928 | 205ab586 | Iustin Pop | " if a kernel is defined")
|
929 | 6b5605e8 | Iustin Pop | |
930 | 205ab586 | Iustin Pop | if (hvparams[constants.HV_VNC_X509_VERIFY] and |
931 | 205ab586 | Iustin Pop | not hvparams[constants.HV_VNC_X509]):
|
932 | 205ab586 | Iustin Pop | raise errors.HypervisorError("%s must be defined, if %s is" % |
933 | 205ab586 | Iustin Pop | (constants.HV_VNC_X509, |
934 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY)) |
935 | 66d5dbef | Guido Trotter | |
936 | 66d5dbef | Guido Trotter | boot_order = hvparams[constants.HV_BOOT_ORDER] |
937 | 205ab586 | Iustin Pop | if (boot_order == constants.HT_BO_CDROM and |
938 | 205ab586 | Iustin Pop | not hvparams[constants.HV_CDROM_IMAGE_PATH]):
|
939 | 835528af | Iustin Pop | raise errors.HypervisorError("Cannot boot from cdrom without an" |
940 | 835528af | Iustin Pop | " ISO path")
|
941 | f5118ade | Iustin Pop | |
942 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
943 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
944 | d19d94db | Guido Trotter | if not hvparams[constants.HV_SECURITY_DOMAIN]: |
945 | d19d94db | Guido Trotter | raise errors.HypervisorError("A security domain (user to run kvm as)" |
946 | d19d94db | Guido Trotter | " must be specified")
|
947 | d19d94db | Guido Trotter | elif (security_model == constants.HT_SM_NONE or |
948 | d19d94db | Guido Trotter | security_model == constants.HT_SM_POOL): |
949 | d19d94db | Guido Trotter | if hvparams[constants.HV_SECURITY_DOMAIN]:
|
950 | d19d94db | Guido Trotter | raise errors.HypervisorError("Cannot have a security domain when the" |
951 | d19d94db | Guido Trotter | " security model is 'none' or 'pool'")
|
952 | d19d94db | Guido Trotter | |
953 | d19d94db | Guido Trotter | @classmethod
|
954 | d19d94db | Guido Trotter | def ValidateParameters(cls, hvparams): |
955 | d19d94db | Guido Trotter | """Check the given parameters for validity.
|
956 | d19d94db | Guido Trotter |
|
957 | d19d94db | Guido Trotter | @type hvparams: dict
|
958 | d19d94db | Guido Trotter | @param hvparams: dictionary with parameter names/value
|
959 | d19d94db | Guido Trotter | @raise errors.HypervisorError: when a parameter is not valid
|
960 | d19d94db | Guido Trotter |
|
961 | d19d94db | Guido Trotter | """
|
962 | d19d94db | Guido Trotter | super(KVMHypervisor, cls).ValidateParameters(hvparams)
|
963 | d19d94db | Guido Trotter | |
964 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
965 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
966 | d19d94db | Guido Trotter | username = hvparams[constants.HV_SECURITY_DOMAIN] |
967 | d19d94db | Guido Trotter | try:
|
968 | 1feb39ec | Guido Trotter | pwd.getpwnam(username) |
969 | d19d94db | Guido Trotter | except KeyError: |
970 | d19d94db | Guido Trotter | raise errors.HypervisorError("Unknown security domain user %s" |
971 | d19d94db | Guido Trotter | % username) |
972 | d19d94db | Guido Trotter | |
973 | f5118ade | Iustin Pop | @classmethod
|
974 | f5118ade | Iustin Pop | def PowercycleNode(cls): |
975 | f5118ade | Iustin Pop | """KVM powercycle, just a wrapper over Linux powercycle.
|
976 | f5118ade | Iustin Pop |
|
977 | f5118ade | Iustin Pop | """
|
978 | f5118ade | Iustin Pop | cls.LinuxPowercycle() |