root / lib / hypervisor / hv_chroot.py @ 4e6cfd11
History | View | Annotate | Download (10.7 kB)
1 | 48297fa2 | Iustin Pop | #
|
---|---|---|---|
2 | 48297fa2 | Iustin Pop | #
|
3 | 48297fa2 | Iustin Pop | |
4 | ef14e128 | Bernardo Dal Seno | # Copyright (C) 2006, 2007, 2008, 2009, 2013 Google Inc.
|
5 | 48297fa2 | Iustin Pop | #
|
6 | 48297fa2 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
|
7 | 48297fa2 | Iustin Pop | # it under the terms of the GNU General Public License as published by
|
8 | 48297fa2 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
|
9 | 48297fa2 | Iustin Pop | # (at your option) any later version.
|
10 | 48297fa2 | Iustin Pop | #
|
11 | 48297fa2 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
|
12 | 48297fa2 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | 48297fa2 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | 48297fa2 | Iustin Pop | # General Public License for more details.
|
15 | 48297fa2 | Iustin Pop | #
|
16 | 48297fa2 | Iustin Pop | # You should have received a copy of the GNU General Public License
|
17 | 48297fa2 | Iustin Pop | # along with this program; if not, write to the Free Software
|
18 | 48297fa2 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 | 48297fa2 | Iustin Pop | # 02110-1301, USA.
|
20 | 48297fa2 | Iustin Pop | |
21 | 48297fa2 | Iustin Pop | |
22 | 48297fa2 | Iustin Pop | """Chroot manager hypervisor
|
23 | 48297fa2 | Iustin Pop |
|
24 | 48297fa2 | Iustin Pop | """
|
25 | 48297fa2 | Iustin Pop | |
26 | 48297fa2 | Iustin Pop | import os |
27 | 48297fa2 | Iustin Pop | import os.path |
28 | 48297fa2 | Iustin Pop | import time |
29 | 48297fa2 | Iustin Pop | import logging |
30 | 48297fa2 | Iustin Pop | |
31 | 48297fa2 | Iustin Pop | from ganeti import constants |
32 | b459a848 | Andrea Spadaccini | from ganeti import errors # pylint: disable=W0611 |
33 | 48297fa2 | Iustin Pop | from ganeti import utils |
34 | 55cc0a44 | Michael Hanselmann | from ganeti import objects |
35 | 9d9bded1 | Michael Hanselmann | from ganeti import pathutils |
36 | 48297fa2 | Iustin Pop | from ganeti.hypervisor import hv_base |
37 | 48297fa2 | Iustin Pop | from ganeti.errors import HypervisorError |
38 | 48297fa2 | Iustin Pop | |
39 | 48297fa2 | Iustin Pop | |
40 | 48297fa2 | Iustin Pop | class ChrootManager(hv_base.BaseHypervisor): |
41 | 48297fa2 | Iustin Pop | """Chroot manager.
|
42 | 48297fa2 | Iustin Pop |
|
43 | 48297fa2 | Iustin Pop | This not-really hypervisor allows ganeti to manage chroots. It has
|
44 | 48297fa2 | Iustin Pop | special behaviour and requirements on the OS definition and the node
|
45 | 48297fa2 | Iustin Pop | environemnt:
|
46 | 48297fa2 | Iustin Pop | - the start and stop of the chroot environment are done via a
|
47 | 48297fa2 | Iustin Pop | script called ganeti-chroot located in the root directory of the
|
48 | 48297fa2 | Iustin Pop | first drive, which should be created by the OS definition
|
49 | 48297fa2 | Iustin Pop | - this script must accept the start and stop argument and, on
|
50 | 48297fa2 | Iustin Pop | shutdown, it should cleanly shutdown the daemons/processes
|
51 | 48297fa2 | Iustin Pop | using the chroot
|
52 | 48297fa2 | Iustin Pop | - the daemons run in chroot should only bind to the instance IP
|
53 | 48297fa2 | Iustin Pop | (to which the OS create script has access via the instance name)
|
54 | 48297fa2 | Iustin Pop | - since some daemons in the node could be listening on the wildcard
|
55 | 48297fa2 | Iustin Pop | address, some ports might be unavailable
|
56 | 48297fa2 | Iustin Pop | - the instance listing will show no memory usage
|
57 | 48297fa2 | Iustin Pop | - on shutdown, the chroot manager will try to find all mountpoints
|
58 | 48297fa2 | Iustin Pop | under the root dir of the instance and unmount them
|
59 | 48297fa2 | Iustin Pop | - instance alive check is based on whether any process is using the chroot
|
60 | 48297fa2 | Iustin Pop |
|
61 | 48297fa2 | Iustin Pop | """
|
62 | 9d9bded1 | Michael Hanselmann | _ROOT_DIR = pathutils.RUN_DIR + "/chroot-hypervisor"
|
63 | 48297fa2 | Iustin Pop | |
64 | 46952329 | Guido Trotter | PARAMETERS = { |
65 | 46952329 | Guido Trotter | constants.HV_INIT_SCRIPT: (True, utils.IsNormAbsPath,
|
66 | 46952329 | Guido Trotter | "must be an absolute normalized path",
|
67 | d73ef63f | Michael Hanselmann | None, None), |
68 | 46952329 | Guido Trotter | } |
69 | 48297fa2 | Iustin Pop | |
70 | 48297fa2 | Iustin Pop | def __init__(self): |
71 | 48297fa2 | Iustin Pop | hv_base.BaseHypervisor.__init__(self)
|
72 | 98c98ab9 | Guido Trotter | utils.EnsureDirs([(self._ROOT_DIR, constants.RUN_DIRS_MODE)])
|
73 | 48297fa2 | Iustin Pop | |
74 | 48297fa2 | Iustin Pop | @staticmethod
|
75 | 48297fa2 | Iustin Pop | def _IsDirLive(path): |
76 | 48297fa2 | Iustin Pop | """Check if a directory looks like a live chroot.
|
77 | 48297fa2 | Iustin Pop |
|
78 | 48297fa2 | Iustin Pop | """
|
79 | 48297fa2 | Iustin Pop | if not os.path.ismount(path): |
80 | 48297fa2 | Iustin Pop | return False |
81 | 48297fa2 | Iustin Pop | result = utils.RunCmd(["fuser", "-m", path]) |
82 | 48297fa2 | Iustin Pop | return not result.failed |
83 | 48297fa2 | Iustin Pop | |
84 | 48297fa2 | Iustin Pop | @staticmethod
|
85 | 48297fa2 | Iustin Pop | def _GetMountSubdirs(path): |
86 | 48297fa2 | Iustin Pop | """Return the list of mountpoints under a given path.
|
87 | 48297fa2 | Iustin Pop |
|
88 | 48297fa2 | Iustin Pop | """
|
89 | e8cd390d | Balazs Lecz | result = [] |
90 | e8cd390d | Balazs Lecz | for _, mountpoint, _, _ in utils.GetMounts(): |
91 | e8cd390d | Balazs Lecz | if (mountpoint.startswith(path) and |
92 | e8cd390d | Balazs Lecz | mountpoint != path): |
93 | e8cd390d | Balazs Lecz | result.append(mountpoint) |
94 | e8cd390d | Balazs Lecz | |
95 | e8cd390d | Balazs Lecz | result.sort(key=lambda x: x.count("/"), reverse=True) |
96 | e8cd390d | Balazs Lecz | return result
|
97 | 48297fa2 | Iustin Pop | |
98 | 6b0391b3 | Iustin Pop | @classmethod
|
99 | 6b0391b3 | Iustin Pop | def _InstanceDir(cls, instance_name): |
100 | 6b0391b3 | Iustin Pop | """Return the root directory for an instance.
|
101 | 6b0391b3 | Iustin Pop |
|
102 | 6b0391b3 | Iustin Pop | """
|
103 | 6b0391b3 | Iustin Pop | return utils.PathJoin(cls._ROOT_DIR, instance_name)
|
104 | 6b0391b3 | Iustin Pop | |
105 | 58e356a9 | Helga Velroyen | def ListInstances(self, hvparams=None): |
106 | 48297fa2 | Iustin Pop | """Get the list of running instances.
|
107 | 48297fa2 | Iustin Pop |
|
108 | 48297fa2 | Iustin Pop | """
|
109 | 48297fa2 | Iustin Pop | return [name for name in os.listdir(self._ROOT_DIR) |
110 | c4feafe8 | Iustin Pop | if self._IsDirLive(utils.PathJoin(self._ROOT_DIR, name))] |
111 | 48297fa2 | Iustin Pop | |
112 | 0bbec3af | Helga Velroyen | def GetInstanceInfo(self, instance_name, hvparams=None): |
113 | 48297fa2 | Iustin Pop | """Get instance properties.
|
114 | 48297fa2 | Iustin Pop |
|
115 | d73ef63f | Michael Hanselmann | @type instance_name: string
|
116 | d73ef63f | Michael Hanselmann | @param instance_name: the instance name
|
117 | 0bbec3af | Helga Velroyen | @type hvparams: dict of strings
|
118 | 0bbec3af | Helga Velroyen | @param hvparams: hvparams to be used with this instance
|
119 | d73ef63f | Michael Hanselmann |
|
120 | d73ef63f | Michael Hanselmann | @return: (name, id, memory, vcpus, stat, times)
|
121 | 48297fa2 | Iustin Pop |
|
122 | 48297fa2 | Iustin Pop | """
|
123 | 6b0391b3 | Iustin Pop | dir_name = self._InstanceDir(instance_name)
|
124 | 48297fa2 | Iustin Pop | if not self._IsDirLive(dir_name): |
125 | 48297fa2 | Iustin Pop | raise HypervisorError("Instance %s is not running" % instance_name) |
126 | 48297fa2 | Iustin Pop | return (instance_name, 0, 0, 0, 0, 0) |
127 | 48297fa2 | Iustin Pop | |
128 | 0200a1af | Helga Velroyen | def GetAllInstancesInfo(self, hvparams=None): |
129 | 48297fa2 | Iustin Pop | """Get properties of all instances.
|
130 | 48297fa2 | Iustin Pop |
|
131 | 0200a1af | Helga Velroyen | @type hvparams: dict of strings
|
132 | 0200a1af | Helga Velroyen | @param hvparams: hypervisor parameter
|
133 | d73ef63f | Michael Hanselmann | @return: [(name, id, memory, vcpus, stat, times),...]
|
134 | d73ef63f | Michael Hanselmann |
|
135 | 48297fa2 | Iustin Pop | """
|
136 | 48297fa2 | Iustin Pop | data = [] |
137 | 48297fa2 | Iustin Pop | for file_name in os.listdir(self._ROOT_DIR): |
138 | c4feafe8 | Iustin Pop | path = utils.PathJoin(self._ROOT_DIR, file_name)
|
139 | 48297fa2 | Iustin Pop | if self._IsDirLive(path): |
140 | 48297fa2 | Iustin Pop | data.append((file_name, 0, 0, 0, 0, 0)) |
141 | 48297fa2 | Iustin Pop | return data
|
142 | 48297fa2 | Iustin Pop | |
143 | 323f9095 | Stephen Shirley | def StartInstance(self, instance, block_devices, startup_paused): |
144 | 48297fa2 | Iustin Pop | """Start an instance.
|
145 | 48297fa2 | Iustin Pop |
|
146 | 48297fa2 | Iustin Pop | For the chroot manager, we try to mount the block device and
|
147 | 48297fa2 | Iustin Pop | execute '/ganeti-chroot start'.
|
148 | 48297fa2 | Iustin Pop |
|
149 | 48297fa2 | Iustin Pop | """
|
150 | 6b0391b3 | Iustin Pop | root_dir = self._InstanceDir(instance.name)
|
151 | 48297fa2 | Iustin Pop | if not os.path.exists(root_dir): |
152 | 48297fa2 | Iustin Pop | try:
|
153 | 48297fa2 | Iustin Pop | os.mkdir(root_dir) |
154 | 48297fa2 | Iustin Pop | except IOError, err: |
155 | 48297fa2 | Iustin Pop | raise HypervisorError("Failed to start instance %s: %s" % |
156 | 48297fa2 | Iustin Pop | (instance.name, err)) |
157 | 48297fa2 | Iustin Pop | if not os.path.isdir(root_dir): |
158 | 48297fa2 | Iustin Pop | raise HypervisorError("Needed path %s is not a directory" % root_dir) |
159 | 48297fa2 | Iustin Pop | |
160 | 48297fa2 | Iustin Pop | if not os.path.ismount(root_dir): |
161 | 48297fa2 | Iustin Pop | if not block_devices: |
162 | 48297fa2 | Iustin Pop | raise HypervisorError("The chroot manager needs at least one disk") |
163 | 48297fa2 | Iustin Pop | |
164 | 48297fa2 | Iustin Pop | sda_dev_path = block_devices[0][1] |
165 | 48297fa2 | Iustin Pop | result = utils.RunCmd(["mount", sda_dev_path, root_dir])
|
166 | 48297fa2 | Iustin Pop | if result.failed:
|
167 | 48297fa2 | Iustin Pop | raise HypervisorError("Can't mount the chroot dir: %s" % result.output) |
168 | 48297fa2 | Iustin Pop | init_script = instance.hvparams[constants.HV_INIT_SCRIPT] |
169 | 48297fa2 | Iustin Pop | result = utils.RunCmd(["chroot", root_dir, init_script, "start"]) |
170 | 48297fa2 | Iustin Pop | if result.failed:
|
171 | 48297fa2 | Iustin Pop | raise HypervisorError("Can't run the chroot start script: %s" % |
172 | 48297fa2 | Iustin Pop | result.output) |
173 | 48297fa2 | Iustin Pop | |
174 | bbcf7ad0 | Iustin Pop | def StopInstance(self, instance, force=False, retry=False, name=None): |
175 | 48297fa2 | Iustin Pop | """Stop an instance.
|
176 | 48297fa2 | Iustin Pop |
|
177 | 48297fa2 | Iustin Pop | This method has complicated cleanup tests, as we must:
|
178 | 48297fa2 | Iustin Pop | - try to kill all leftover processes
|
179 | 48297fa2 | Iustin Pop | - try to unmount any additional sub-mountpoints
|
180 | 48297fa2 | Iustin Pop | - finally unmount the instance dir
|
181 | 48297fa2 | Iustin Pop |
|
182 | 48297fa2 | Iustin Pop | """
|
183 | bbcf7ad0 | Iustin Pop | if name is None: |
184 | bbcf7ad0 | Iustin Pop | name = instance.name |
185 | bbcf7ad0 | Iustin Pop | |
186 | bbcf7ad0 | Iustin Pop | root_dir = self._InstanceDir(name)
|
187 | a2771c83 | Guido Trotter | if not os.path.exists(root_dir) or not self._IsDirLive(root_dir): |
188 | 48297fa2 | Iustin Pop | return
|
189 | 48297fa2 | Iustin Pop | |
190 | a2771c83 | Guido Trotter | # Run the chroot stop script only once
|
191 | a2771c83 | Guido Trotter | if not retry and not force: |
192 | 48297fa2 | Iustin Pop | result = utils.RunCmd(["chroot", root_dir, "/ganeti-chroot", "stop"]) |
193 | 48297fa2 | Iustin Pop | if result.failed:
|
194 | 48297fa2 | Iustin Pop | raise HypervisorError("Can't run the chroot stop script: %s" % |
195 | 48297fa2 | Iustin Pop | result.output) |
196 | a2771c83 | Guido Trotter | |
197 | a2771c83 | Guido Trotter | if not force: |
198 | a2771c83 | Guido Trotter | utils.RunCmd(["fuser", "-k", "-TERM", "-m", root_dir]) |
199 | a2771c83 | Guido Trotter | else:
|
200 | a2771c83 | Guido Trotter | utils.RunCmd(["fuser", "-k", "-KILL", "-m", root_dir]) |
201 | a2771c83 | Guido Trotter | # 2 seconds at most should be enough for KILL to take action
|
202 | a2771c83 | Guido Trotter | time.sleep(2)
|
203 | a2771c83 | Guido Trotter | |
204 | a2771c83 | Guido Trotter | if self._IsDirLive(root_dir): |
205 | a2771c83 | Guido Trotter | if force:
|
206 | 48297fa2 | Iustin Pop | raise HypervisorError("Can't stop the processes using the chroot") |
207 | a2771c83 | Guido Trotter | return
|
208 | a2771c83 | Guido Trotter | |
209 | 9e302a8c | Iustin Pop | def CleanupInstance(self, instance_name): |
210 | 9e302a8c | Iustin Pop | """Cleanup after a stopped instance
|
211 | 9e302a8c | Iustin Pop |
|
212 | 9e302a8c | Iustin Pop | """
|
213 | 14b3f969 | Iustin Pop | root_dir = self._InstanceDir(instance_name)
|
214 | 14b3f969 | Iustin Pop | |
215 | 14b3f969 | Iustin Pop | if not os.path.exists(root_dir): |
216 | 14b3f969 | Iustin Pop | return
|
217 | 14b3f969 | Iustin Pop | |
218 | 9e302a8c | Iustin Pop | if self._IsDirLive(root_dir): |
219 | 9e302a8c | Iustin Pop | raise HypervisorError("Processes are still using the chroot") |
220 | 9e302a8c | Iustin Pop | |
221 | 48297fa2 | Iustin Pop | for mpath in self._GetMountSubdirs(root_dir): |
222 | 48297fa2 | Iustin Pop | utils.RunCmd(["umount", mpath])
|
223 | a2771c83 | Guido Trotter | |
224 | a2771c83 | Guido Trotter | result = utils.RunCmd(["umount", root_dir])
|
225 | 14b3f969 | Iustin Pop | if result.failed:
|
226 | a2771c83 | Guido Trotter | msg = ("Processes still alive in the chroot: %s" %
|
227 | a2771c83 | Guido Trotter | utils.RunCmd("fuser -vm %s" % root_dir).output)
|
228 | a2771c83 | Guido Trotter | logging.error(msg) |
229 | a2771c83 | Guido Trotter | raise HypervisorError("Can't umount the chroot dir: %s (%s)" % |
230 | a2771c83 | Guido Trotter | (result.output, msg)) |
231 | 48297fa2 | Iustin Pop | |
232 | 48297fa2 | Iustin Pop | def RebootInstance(self, instance): |
233 | 48297fa2 | Iustin Pop | """Reboot an instance.
|
234 | 48297fa2 | Iustin Pop |
|
235 | 48297fa2 | Iustin Pop | This is not (yet) implemented for the chroot manager.
|
236 | 48297fa2 | Iustin Pop |
|
237 | 48297fa2 | Iustin Pop | """
|
238 | 48297fa2 | Iustin Pop | raise HypervisorError("The chroot manager doesn't implement the" |
239 | 48297fa2 | Iustin Pop | " reboot functionality")
|
240 | 48297fa2 | Iustin Pop | |
241 | 2e2fb795 | Guido Trotter | def BalloonInstanceMemory(self, instance, mem): |
242 | 2e2fb795 | Guido Trotter | """Balloon an instance memory to a certain value.
|
243 | 2e2fb795 | Guido Trotter |
|
244 | 2e2fb795 | Guido Trotter | @type instance: L{objects.Instance}
|
245 | 2e2fb795 | Guido Trotter | @param instance: instance to be accepted
|
246 | 2e2fb795 | Guido Trotter | @type mem: int
|
247 | 2e2fb795 | Guido Trotter | @param mem: actual memory size to use for instance runtime
|
248 | 2e2fb795 | Guido Trotter |
|
249 | 2e2fb795 | Guido Trotter | """
|
250 | 2e2fb795 | Guido Trotter | # Currently chroots don't have memory limits
|
251 | 2e2fb795 | Guido Trotter | pass
|
252 | 2e2fb795 | Guido Trotter | |
253 | fac489a5 | Helga Velroyen | def GetNodeInfo(self, hvparams=None): |
254 | 48297fa2 | Iustin Pop | """Return information about the node.
|
255 | 48297fa2 | Iustin Pop |
|
256 | ef14e128 | Bernardo Dal Seno | See L{BaseHypervisor.GetLinuxNodeInfo}.
|
257 | 48297fa2 | Iustin Pop |
|
258 | 48297fa2 | Iustin Pop | """
|
259 | 48297fa2 | Iustin Pop | return self.GetLinuxNodeInfo() |
260 | 48297fa2 | Iustin Pop | |
261 | 48297fa2 | Iustin Pop | @classmethod
|
262 | 1c3231aa | Thomas Thrainer | def GetInstanceConsole(cls, instance, primary_node, # pylint: disable=W0221 |
263 | 55cc0a44 | Michael Hanselmann | hvparams, beparams, root_dir=None):
|
264 | 55cc0a44 | Michael Hanselmann | """Return information for connecting to the console of an instance.
|
265 | 48297fa2 | Iustin Pop |
|
266 | 48297fa2 | Iustin Pop | """
|
267 | 55cc0a44 | Michael Hanselmann | if root_dir is None: |
268 | 55cc0a44 | Michael Hanselmann | root_dir = cls._InstanceDir(instance.name) |
269 | 55cc0a44 | Michael Hanselmann | if not os.path.ismount(root_dir): |
270 | 55cc0a44 | Michael Hanselmann | raise HypervisorError("Instance %s is not running" % instance.name) |
271 | 55cc0a44 | Michael Hanselmann | |
272 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
273 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_SSH, |
274 | 1c3231aa | Thomas Thrainer | host=primary_node.name, |
275 | 052783ff | Michael Hanselmann | user=constants.SSH_CONSOLE_USER, |
276 | 55cc0a44 | Michael Hanselmann | command=["chroot", root_dir])
|
277 | 48297fa2 | Iustin Pop | |
278 | 75bf3149 | Helga Velroyen | def Verify(self, hvparams=None): |
279 | 48297fa2 | Iustin Pop | """Verify the hypervisor.
|
280 | 48297fa2 | Iustin Pop |
|
281 | d73ef63f | Michael Hanselmann | For the chroot manager, it just checks the existence of the base dir.
|
282 | 48297fa2 | Iustin Pop |
|
283 | 75bf3149 | Helga Velroyen | @type hvparams: dict of strings
|
284 | 75bf3149 | Helga Velroyen | @param hvparams: hypervisor parameters to be verified against, not used
|
285 | 75bf3149 | Helga Velroyen | in for chroot
|
286 | 75bf3149 | Helga Velroyen |
|
287 | cd04dfd2 | Michael Hanselmann | @return: Problem description if something is wrong, C{None} otherwise
|
288 | cd04dfd2 | Michael Hanselmann |
|
289 | 48297fa2 | Iustin Pop | """
|
290 | cd04dfd2 | Michael Hanselmann | if os.path.exists(self._ROOT_DIR): |
291 | cd04dfd2 | Michael Hanselmann | return None |
292 | cd04dfd2 | Michael Hanselmann | else:
|
293 | cd04dfd2 | Michael Hanselmann | return "The required directory '%s' does not exist" % self._ROOT_DIR |
294 | 94fed7da | Iustin Pop | |
295 | 94fed7da | Iustin Pop | @classmethod
|
296 | 8ef418bb | Helga Velroyen | def PowercycleNode(cls, hvparams=None): |
297 | 94fed7da | Iustin Pop | """Chroot powercycle, just a wrapper over Linux powercycle.
|
298 | 94fed7da | Iustin Pop |
|
299 | 8ef418bb | Helga Velroyen | @type hvparams: dict of strings
|
300 | 8ef418bb | Helga Velroyen | @param hvparams: hypervisor params to be used on this node
|
301 | 8ef418bb | Helga Velroyen |
|
302 | 94fed7da | Iustin Pop | """
|
303 | 94fed7da | Iustin Pop | cls.LinuxPowercycle() |
304 | 94fed7da | Iustin Pop | |
305 | bc0a2284 | Helga Velroyen | def MigrateInstance(self, cluster_name, instance, target, live): |
306 | 94fed7da | Iustin Pop | """Migrate an instance.
|
307 | 94fed7da | Iustin Pop |
|
308 | bc0a2284 | Helga Velroyen | @type cluster_name: string
|
309 | bc0a2284 | Helga Velroyen | @param cluster_name: name of the cluster
|
310 | 3a488770 | Iustin Pop | @type instance: L{objects.Instance}
|
311 | 94fed7da | Iustin Pop | @param instance: the instance to be migrated
|
312 | 94fed7da | Iustin Pop | @type target: string
|
313 | 94fed7da | Iustin Pop | @param target: hostname (usually ip) of the target node
|
314 | 94fed7da | Iustin Pop | @type live: boolean
|
315 | 94fed7da | Iustin Pop | @param live: whether to do a live or non-live migration
|
316 | 94fed7da | Iustin Pop |
|
317 | 94fed7da | Iustin Pop | """
|
318 | 94fed7da | Iustin Pop | raise HypervisorError("Migration not supported by the chroot hypervisor") |
319 | 60af751d | Andrea Spadaccini | |
320 | 60af751d | Andrea Spadaccini | def GetMigrationStatus(self, instance): |
321 | 60af751d | Andrea Spadaccini | """Get the migration status
|
322 | 60af751d | Andrea Spadaccini |
|
323 | 60af751d | Andrea Spadaccini | @type instance: L{objects.Instance}
|
324 | 60af751d | Andrea Spadaccini | @param instance: the instance that is being migrated
|
325 | 60af751d | Andrea Spadaccini | @rtype: L{objects.MigrationStatus}
|
326 | 60af751d | Andrea Spadaccini | @return: the status of the current migration (one of
|
327 | 60af751d | Andrea Spadaccini | L{constants.HV_MIGRATION_VALID_STATUSES}), plus any additional
|
328 | 60af751d | Andrea Spadaccini | progress info that can be retrieved from the hypervisor
|
329 | 60af751d | Andrea Spadaccini |
|
330 | 60af751d | Andrea Spadaccini | """
|
331 | 60af751d | Andrea Spadaccini | raise HypervisorError("Migration not supported by the chroot hypervisor") |