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1 | a8083063 | Iustin Pop | #!/usr/bin/python |
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2 | a8083063 | Iustin Pop | # |
3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 Google Inc. |
5 | a8083063 | Iustin Pop | # |
6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify |
7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by |
8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or |
9 | a8083063 | Iustin Pop | # (at your option) any later version. |
10 | a8083063 | Iustin Pop | # |
11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but |
12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | a8083063 | Iustin Pop | # General Public License for more details. |
15 | a8083063 | Iustin Pop | # |
16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License |
17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software |
18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
19 | a8083063 | Iustin Pop | # 02110-1301, USA. |
20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | a8083063 | Iustin Pop | """Ganeti node daemon""" |
23 | a8083063 | Iustin Pop | |
24 | 3ecf6786 | Iustin Pop | # functions in this module need to have a given name structure, so: |
25 | 3ecf6786 | Iustin Pop | # pylint: disable-msg=C0103 |
26 | 3ecf6786 | Iustin Pop | |
27 | a8083063 | Iustin Pop | import os |
28 | a8083063 | Iustin Pop | import sys |
29 | a8083063 | Iustin Pop | import resource |
30 | a8083063 | Iustin Pop | import traceback |
31 | a8083063 | Iustin Pop | |
32 | a8083063 | Iustin Pop | from optparse import OptionParser |
33 | a8083063 | Iustin Pop | |
34 | a8083063 | Iustin Pop | |
35 | a8083063 | Iustin Pop | from ganeti import backend |
36 | a8083063 | Iustin Pop | from ganeti import logger |
37 | a8083063 | Iustin Pop | from ganeti import constants |
38 | a8083063 | Iustin Pop | from ganeti import objects |
39 | a8083063 | Iustin Pop | from ganeti import errors |
40 | a8083063 | Iustin Pop | from ganeti import ssconf |
41 | a8083063 | Iustin Pop | |
42 | a8083063 | Iustin Pop | from twisted.spread import pb |
43 | a8083063 | Iustin Pop | from twisted.internet import reactor |
44 | a8083063 | Iustin Pop | from twisted.cred import checkers, portal |
45 | a8083063 | Iustin Pop | from OpenSSL import SSL |
46 | a8083063 | Iustin Pop | |
47 | a8083063 | Iustin Pop | |
48 | a8083063 | Iustin Pop | class ServerContextFactory: |
49 | 3ecf6786 | Iustin Pop | """SSL context factory class that uses a given certificate. |
50 | 3ecf6786 | Iustin Pop | |
51 | 3ecf6786 | Iustin Pop | """ |
52 | 3ecf6786 | Iustin Pop | @staticmethod |
53 | 3ecf6786 | Iustin Pop | def getContext(): |
54 | 3ecf6786 | Iustin Pop | """Return a customized context. |
55 | 3ecf6786 | Iustin Pop | |
56 | 3ecf6786 | Iustin Pop | The context will be set to use our certificate. |
57 | 3ecf6786 | Iustin Pop | |
58 | 3ecf6786 | Iustin Pop | """ |
59 | a8083063 | Iustin Pop | ctx = SSL.Context(SSL.TLSv1_METHOD) |
60 | a8083063 | Iustin Pop | ctx.use_certificate_file(constants.SSL_CERT_FILE) |
61 | a8083063 | Iustin Pop | ctx.use_privatekey_file(constants.SSL_CERT_FILE) |
62 | a8083063 | Iustin Pop | return ctx |
63 | a8083063 | Iustin Pop | |
64 | a8083063 | Iustin Pop | class ServerObject(pb.Avatar): |
65 | 3ecf6786 | Iustin Pop | """The server implementation. |
66 | 3ecf6786 | Iustin Pop | |
67 | 3ecf6786 | Iustin Pop | This class holds all methods exposed over the RPC interface. |
68 | 3ecf6786 | Iustin Pop | |
69 | 3ecf6786 | Iustin Pop | """ |
70 | a8083063 | Iustin Pop | def __init__(self, name): |
71 | a8083063 | Iustin Pop | self.name = name |
72 | a8083063 | Iustin Pop | |
73 | a8083063 | Iustin Pop | def perspectiveMessageReceived(self, broker, message, args, kw): |
74 | 3ecf6786 | Iustin Pop | """Custom message dispatching function. |
75 | a8083063 | Iustin Pop | |
76 | 3ecf6786 | Iustin Pop | This function overrides the pb.Avatar function in order to provide |
77 | 3ecf6786 | Iustin Pop | a simple form of exception passing (as text only). |
78 | a8083063 | Iustin Pop | |
79 | 098c0958 | Michael Hanselmann | """ |
80 | a8083063 | Iustin Pop | args = broker.unserialize(args, self) |
81 | a8083063 | Iustin Pop | kw = broker.unserialize(kw, self) |
82 | a8083063 | Iustin Pop | method = getattr(self, "perspective_%s" % message) |
83 | a8083063 | Iustin Pop | tb = None |
84 | a8083063 | Iustin Pop | state = None |
85 | a8083063 | Iustin Pop | try: |
86 | a8083063 | Iustin Pop | state = method(*args, **kw) |
87 | a8083063 | Iustin Pop | except: |
88 | a8083063 | Iustin Pop | tb = traceback.format_exc() |
89 | a8083063 | Iustin Pop | |
90 | a8083063 | Iustin Pop | return broker.serialize((tb, state), self, method, args, kw) |
91 | a8083063 | Iustin Pop | |
92 | a8083063 | Iustin Pop | # the new block devices -------------------------- |
93 | a8083063 | Iustin Pop | |
94 | 3ecf6786 | Iustin Pop | @staticmethod |
95 | 3ecf6786 | Iustin Pop | def perspective_blockdev_create(params): |
96 | 3ecf6786 | Iustin Pop | """Create a block device. |
97 | 3ecf6786 | Iustin Pop | |
98 | 3ecf6786 | Iustin Pop | """ |
99 | a0c3fea1 | Michael Hanselmann | bdev_s, size, on_primary, info = params |
100 | a8083063 | Iustin Pop | bdev = objects.ConfigObject.Loads(bdev_s) |
101 | a8083063 | Iustin Pop | if bdev is None: |
102 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
103 | a0c3fea1 | Michael Hanselmann | return backend.CreateBlockDevice(bdev, size, on_primary, info) |
104 | a8083063 | Iustin Pop | |
105 | 3ecf6786 | Iustin Pop | @staticmethod |
106 | 3ecf6786 | Iustin Pop | def perspective_blockdev_remove(params): |
107 | 3ecf6786 | Iustin Pop | """Remove a block device. |
108 | 3ecf6786 | Iustin Pop | |
109 | 3ecf6786 | Iustin Pop | """ |
110 | a8083063 | Iustin Pop | bdev_s = params[0] |
111 | a8083063 | Iustin Pop | bdev = objects.ConfigObject.Loads(bdev_s) |
112 | a8083063 | Iustin Pop | return backend.RemoveBlockDevice(bdev) |
113 | a8083063 | Iustin Pop | |
114 | 3ecf6786 | Iustin Pop | @staticmethod |
115 | 3ecf6786 | Iustin Pop | def perspective_blockdev_assemble(params): |
116 | 3ecf6786 | Iustin Pop | """Assemble a block device. |
117 | 3ecf6786 | Iustin Pop | |
118 | 3ecf6786 | Iustin Pop | """ |
119 | a8083063 | Iustin Pop | bdev_s, on_primary = params |
120 | a8083063 | Iustin Pop | bdev = objects.ConfigObject.Loads(bdev_s) |
121 | a8083063 | Iustin Pop | if bdev is None: |
122 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
123 | a8083063 | Iustin Pop | return backend.AssembleBlockDevice(bdev, on_primary) |
124 | a8083063 | Iustin Pop | |
125 | 3ecf6786 | Iustin Pop | @staticmethod |
126 | 3ecf6786 | Iustin Pop | def perspective_blockdev_shutdown(params): |
127 | 3ecf6786 | Iustin Pop | """Shutdown a block device. |
128 | 3ecf6786 | Iustin Pop | |
129 | 3ecf6786 | Iustin Pop | """ |
130 | a8083063 | Iustin Pop | bdev_s = params[0] |
131 | a8083063 | Iustin Pop | bdev = objects.ConfigObject.Loads(bdev_s) |
132 | a8083063 | Iustin Pop | if bdev is None: |
133 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
134 | a8083063 | Iustin Pop | return backend.ShutdownBlockDevice(bdev) |
135 | a8083063 | Iustin Pop | |
136 | 3ecf6786 | Iustin Pop | @staticmethod |
137 | 3ecf6786 | Iustin Pop | def perspective_blockdev_addchild(params): |
138 | 3ecf6786 | Iustin Pop | """Add a child to a mirror device. |
139 | 3ecf6786 | Iustin Pop | |
140 | 3ecf6786 | Iustin Pop | Note: this is only valid for mirror devices. It's the caller's duty |
141 | 3ecf6786 | Iustin Pop | to send a correct disk, otherwise we raise an error. |
142 | 3ecf6786 | Iustin Pop | |
143 | 3ecf6786 | Iustin Pop | """ |
144 | a8083063 | Iustin Pop | bdev_s, ndev_s = params |
145 | a8083063 | Iustin Pop | bdev = objects.ConfigObject.Loads(bdev_s) |
146 | a8083063 | Iustin Pop | ndev = objects.ConfigObject.Loads(ndev_s) |
147 | a8083063 | Iustin Pop | if bdev is None or ndev is None: |
148 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
149 | a8083063 | Iustin Pop | return backend.MirrorAddChild(bdev, ndev) |
150 | a8083063 | Iustin Pop | |
151 | 3ecf6786 | Iustin Pop | @staticmethod |
152 | 3ecf6786 | Iustin Pop | def perspective_blockdev_removechild(params): |
153 | 3ecf6786 | Iustin Pop | """Remove a child from a mirror device. |
154 | 3ecf6786 | Iustin Pop | |
155 | 3ecf6786 | Iustin Pop | This is only valid for mirror devices, of course. It's the callers |
156 | 3ecf6786 | Iustin Pop | duty to send a correct disk, otherwise we raise an error. |
157 | 3ecf6786 | Iustin Pop | |
158 | 3ecf6786 | Iustin Pop | """ |
159 | a8083063 | Iustin Pop | bdev_s, ndev_s = params |
160 | a8083063 | Iustin Pop | bdev = objects.ConfigObject.Loads(bdev_s) |
161 | a8083063 | Iustin Pop | ndev = objects.ConfigObject.Loads(ndev_s) |
162 | a8083063 | Iustin Pop | if bdev is None or ndev is None: |
163 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
164 | a8083063 | Iustin Pop | return backend.MirrorRemoveChild(bdev, ndev) |
165 | a8083063 | Iustin Pop | |
166 | 3ecf6786 | Iustin Pop | @staticmethod |
167 | 3ecf6786 | Iustin Pop | def perspective_blockdev_getmirrorstatus(params): |
168 | 3ecf6786 | Iustin Pop | """Return the mirror status for a list of disks. |
169 | 3ecf6786 | Iustin Pop | |
170 | 3ecf6786 | Iustin Pop | """ |
171 | a8083063 | Iustin Pop | disks = [objects.ConfigObject.Loads(dsk_s) |
172 | a8083063 | Iustin Pop | for dsk_s in params] |
173 | a8083063 | Iustin Pop | return backend.GetMirrorStatus(disks) |
174 | a8083063 | Iustin Pop | |
175 | 3ecf6786 | Iustin Pop | @staticmethod |
176 | 3ecf6786 | Iustin Pop | def perspective_blockdev_find(params): |
177 | 3ecf6786 | Iustin Pop | """Expose the FindBlockDevice functionality for a disk. |
178 | 3ecf6786 | Iustin Pop | |
179 | 3ecf6786 | Iustin Pop | This will try to find but not activate a disk. |
180 | 3ecf6786 | Iustin Pop | |
181 | 3ecf6786 | Iustin Pop | """ |
182 | a8083063 | Iustin Pop | disk = objects.ConfigObject.Loads(params[0]) |
183 | a8083063 | Iustin Pop | return backend.FindBlockDevice(disk) |
184 | a8083063 | Iustin Pop | |
185 | 3ecf6786 | Iustin Pop | @staticmethod |
186 | 3ecf6786 | Iustin Pop | def perspective_blockdev_snapshot(params): |
187 | 3ecf6786 | Iustin Pop | """Create a snapshot device. |
188 | 3ecf6786 | Iustin Pop | |
189 | 3ecf6786 | Iustin Pop | Note that this is only valid for LVM disks, if we get passed |
190 | 3ecf6786 | Iustin Pop | something else we raise an exception. The snapshot device can be |
191 | 3ecf6786 | Iustin Pop | remove by calling the generic block device remove call. |
192 | 3ecf6786 | Iustin Pop | |
193 | 3ecf6786 | Iustin Pop | """ |
194 | a8083063 | Iustin Pop | cfbd = objects.ConfigObject.Loads(params[0]) |
195 | a8083063 | Iustin Pop | return backend.SnapshotBlockDevice(cfbd) |
196 | a8083063 | Iustin Pop | |
197 | a8083063 | Iustin Pop | # export/import -------------------------- |
198 | a8083063 | Iustin Pop | |
199 | 3ecf6786 | Iustin Pop | @staticmethod |
200 | 3ecf6786 | Iustin Pop | def perspective_snapshot_export(params): |
201 | 3ecf6786 | Iustin Pop | """Export a given snapshot. |
202 | 3ecf6786 | Iustin Pop | |
203 | 3ecf6786 | Iustin Pop | """ |
204 | a8083063 | Iustin Pop | disk = objects.ConfigObject.Loads(params[0]) |
205 | a8083063 | Iustin Pop | dest_node = params[1] |
206 | a8083063 | Iustin Pop | instance = objects.ConfigObject.Loads(params[2]) |
207 | 3ecf6786 | Iustin Pop | return backend.ExportSnapshot(disk, dest_node, instance) |
208 | 3ecf6786 | Iustin Pop | |
209 | 3ecf6786 | Iustin Pop | @staticmethod |
210 | 3ecf6786 | Iustin Pop | def perspective_finalize_export(params): |
211 | 3ecf6786 | Iustin Pop | """Expose the finalize export functionality. |
212 | a8083063 | Iustin Pop | |
213 | 3ecf6786 | Iustin Pop | """ |
214 | a8083063 | Iustin Pop | instance = objects.ConfigObject.Loads(params[0]) |
215 | a8083063 | Iustin Pop | snap_disks = [objects.ConfigObject.Loads(str_data) |
216 | a8083063 | Iustin Pop | for str_data in params[1]] |
217 | a8083063 | Iustin Pop | return backend.FinalizeExport(instance, snap_disks) |
218 | a8083063 | Iustin Pop | |
219 | 3ecf6786 | Iustin Pop | @staticmethod |
220 | 3ecf6786 | Iustin Pop | def perspective_export_info(params): |
221 | 3ecf6786 | Iustin Pop | """Query information about an existing export on this node. |
222 | 3ecf6786 | Iustin Pop | |
223 | 3ecf6786 | Iustin Pop | The given path may not contain an export, in which case we return |
224 | 3ecf6786 | Iustin Pop | None. |
225 | 3ecf6786 | Iustin Pop | |
226 | 3ecf6786 | Iustin Pop | """ |
227 | 3ecf6786 | Iustin Pop | path = params[0] |
228 | 3ecf6786 | Iustin Pop | einfo = backend.ExportInfo(path) |
229 | a8083063 | Iustin Pop | if einfo is None: |
230 | a8083063 | Iustin Pop | return einfo |
231 | a8083063 | Iustin Pop | return einfo.Dumps() |
232 | a8083063 | Iustin Pop | |
233 | 3ecf6786 | Iustin Pop | @staticmethod |
234 | 3ecf6786 | Iustin Pop | def perspective_export_list(params): |
235 | 3ecf6786 | Iustin Pop | """List the available exports on this node. |
236 | 3ecf6786 | Iustin Pop | |
237 | 3ecf6786 | Iustin Pop | Note that as opposed to export_info, which may query data about an |
238 | 3ecf6786 | Iustin Pop | export in any path, this only queries the standard Ganeti path |
239 | 3ecf6786 | Iustin Pop | (constants.EXPORT_DIR). |
240 | 3ecf6786 | Iustin Pop | |
241 | 3ecf6786 | Iustin Pop | """ |
242 | a8083063 | Iustin Pop | return backend.ListExports() |
243 | a8083063 | Iustin Pop | |
244 | 3ecf6786 | Iustin Pop | @staticmethod |
245 | 3ecf6786 | Iustin Pop | def perspective_export_remove(params): |
246 | 3ecf6786 | Iustin Pop | """Remove an export. |
247 | 3ecf6786 | Iustin Pop | |
248 | 3ecf6786 | Iustin Pop | """ |
249 | a8083063 | Iustin Pop | export = params[0] |
250 | a8083063 | Iustin Pop | return backend.RemoveExport(export) |
251 | a8083063 | Iustin Pop | |
252 | a8083063 | Iustin Pop | # volume -------------------------- |
253 | a8083063 | Iustin Pop | |
254 | 3ecf6786 | Iustin Pop | @staticmethod |
255 | 3ecf6786 | Iustin Pop | def perspective_volume_list(params): |
256 | 3ecf6786 | Iustin Pop | """Query the list of logical volumes in a given volume group. |
257 | 3ecf6786 | Iustin Pop | |
258 | 3ecf6786 | Iustin Pop | """ |
259 | a8083063 | Iustin Pop | vgname = params[0] |
260 | a8083063 | Iustin Pop | return backend.GetVolumeList(vgname) |
261 | a8083063 | Iustin Pop | |
262 | 3ecf6786 | Iustin Pop | @staticmethod |
263 | 3ecf6786 | Iustin Pop | def perspective_vg_list(params): |
264 | 3ecf6786 | Iustin Pop | """Query the list of volume groups. |
265 | 3ecf6786 | Iustin Pop | |
266 | 3ecf6786 | Iustin Pop | """ |
267 | a8083063 | Iustin Pop | return backend.ListVolumeGroups() |
268 | a8083063 | Iustin Pop | |
269 | a8083063 | Iustin Pop | # bridge -------------------------- |
270 | a8083063 | Iustin Pop | |
271 | 3ecf6786 | Iustin Pop | @staticmethod |
272 | 3ecf6786 | Iustin Pop | def perspective_bridges_exist(params): |
273 | 3ecf6786 | Iustin Pop | """Check if all bridges given exist on this node. |
274 | 3ecf6786 | Iustin Pop | |
275 | 3ecf6786 | Iustin Pop | """ |
276 | a8083063 | Iustin Pop | bridges_list = params[0] |
277 | a8083063 | Iustin Pop | return backend.BridgesExist(bridges_list) |
278 | a8083063 | Iustin Pop | |
279 | a8083063 | Iustin Pop | # instance -------------------------- |
280 | a8083063 | Iustin Pop | |
281 | 3ecf6786 | Iustin Pop | @staticmethod |
282 | 3ecf6786 | Iustin Pop | def perspective_instance_os_add(params): |
283 | 3ecf6786 | Iustin Pop | """Install an OS on a given instance. |
284 | 3ecf6786 | Iustin Pop | |
285 | 3ecf6786 | Iustin Pop | """ |
286 | a8083063 | Iustin Pop | inst_s, os_disk, swap_disk = params |
287 | a8083063 | Iustin Pop | inst = objects.ConfigObject.Loads(inst_s) |
288 | a8083063 | Iustin Pop | return backend.AddOSToInstance(inst, os_disk, swap_disk) |
289 | a8083063 | Iustin Pop | |
290 | 3ecf6786 | Iustin Pop | @staticmethod |
291 | decd5f45 | Iustin Pop | def perspective_instance_run_rename(params): |
292 | decd5f45 | Iustin Pop | """Runs the OS rename script for an instance. |
293 | decd5f45 | Iustin Pop | |
294 | decd5f45 | Iustin Pop | """ |
295 | decd5f45 | Iustin Pop | inst_s, old_name, os_disk, swap_disk = params |
296 | decd5f45 | Iustin Pop | inst = objects.ConfigObject.Loads(inst_s) |
297 | decd5f45 | Iustin Pop | return backend.RunRenameInstance(inst, old_name, os_disk, swap_disk) |
298 | decd5f45 | Iustin Pop | |
299 | decd5f45 | Iustin Pop | @staticmethod |
300 | 3ecf6786 | Iustin Pop | def perspective_instance_os_import(params): |
301 | 3ecf6786 | Iustin Pop | """Run the import function of an OS onto a given instance. |
302 | 3ecf6786 | Iustin Pop | |
303 | 3ecf6786 | Iustin Pop | """ |
304 | a8083063 | Iustin Pop | inst_s, os_disk, swap_disk, src_node, src_image = params |
305 | a8083063 | Iustin Pop | inst = objects.ConfigObject.Loads(inst_s) |
306 | a8083063 | Iustin Pop | return backend.ImportOSIntoInstance(inst, os_disk, swap_disk, |
307 | a8083063 | Iustin Pop | src_node, src_image) |
308 | a8083063 | Iustin Pop | |
309 | 3ecf6786 | Iustin Pop | @staticmethod |
310 | 3ecf6786 | Iustin Pop | def perspective_instance_shutdown(params): |
311 | 3ecf6786 | Iustin Pop | """Shutdown an instance. |
312 | 3ecf6786 | Iustin Pop | |
313 | 3ecf6786 | Iustin Pop | """ |
314 | a8083063 | Iustin Pop | instance = objects.ConfigObject.Loads(params[0]) |
315 | a8083063 | Iustin Pop | return backend.ShutdownInstance(instance) |
316 | a8083063 | Iustin Pop | |
317 | 3ecf6786 | Iustin Pop | @staticmethod |
318 | 3ecf6786 | Iustin Pop | def perspective_instance_start(params): |
319 | 3ecf6786 | Iustin Pop | """Start an instance. |
320 | 3ecf6786 | Iustin Pop | |
321 | 3ecf6786 | Iustin Pop | """ |
322 | a8083063 | Iustin Pop | instance = objects.ConfigObject.Loads(params[0]) |
323 | a8083063 | Iustin Pop | extra_args = params[1] |
324 | a8083063 | Iustin Pop | return backend.StartInstance(instance, extra_args) |
325 | a8083063 | Iustin Pop | |
326 | 3ecf6786 | Iustin Pop | @staticmethod |
327 | 3ecf6786 | Iustin Pop | def perspective_instance_info(params): |
328 | 3ecf6786 | Iustin Pop | """Query instance information. |
329 | 3ecf6786 | Iustin Pop | |
330 | 3ecf6786 | Iustin Pop | """ |
331 | a8083063 | Iustin Pop | return backend.GetInstanceInfo(params[0]) |
332 | a8083063 | Iustin Pop | |
333 | 3ecf6786 | Iustin Pop | @staticmethod |
334 | 3ecf6786 | Iustin Pop | def perspective_all_instances_info(params): |
335 | 3ecf6786 | Iustin Pop | """Query information about all instances. |
336 | 3ecf6786 | Iustin Pop | |
337 | 3ecf6786 | Iustin Pop | """ |
338 | a8083063 | Iustin Pop | return backend.GetAllInstancesInfo() |
339 | a8083063 | Iustin Pop | |
340 | 3ecf6786 | Iustin Pop | @staticmethod |
341 | 3ecf6786 | Iustin Pop | def perspective_instance_list(params): |
342 | 3ecf6786 | Iustin Pop | """Query the list of running instances. |
343 | 3ecf6786 | Iustin Pop | |
344 | 3ecf6786 | Iustin Pop | """ |
345 | a8083063 | Iustin Pop | return backend.GetInstanceList() |
346 | a8083063 | Iustin Pop | |
347 | a8083063 | Iustin Pop | # node -------------------------- |
348 | a8083063 | Iustin Pop | |
349 | 3ecf6786 | Iustin Pop | @staticmethod |
350 | 3ecf6786 | Iustin Pop | def perspective_node_info(params): |
351 | 3ecf6786 | Iustin Pop | """Query node information. |
352 | 3ecf6786 | Iustin Pop | |
353 | 3ecf6786 | Iustin Pop | """ |
354 | a8083063 | Iustin Pop | vgname = params[0] |
355 | a8083063 | Iustin Pop | return backend.GetNodeInfo(vgname) |
356 | a8083063 | Iustin Pop | |
357 | 3ecf6786 | Iustin Pop | @staticmethod |
358 | 3ecf6786 | Iustin Pop | def perspective_node_add(params): |
359 | 3ecf6786 | Iustin Pop | """Complete the registration of this node in the cluster. |
360 | 3ecf6786 | Iustin Pop | |
361 | 3ecf6786 | Iustin Pop | """ |
362 | a8083063 | Iustin Pop | return backend.AddNode(params[0], params[1], params[2], |
363 | a8083063 | Iustin Pop | params[3], params[4], params[5]) |
364 | a8083063 | Iustin Pop | |
365 | 3ecf6786 | Iustin Pop | @staticmethod |
366 | 3ecf6786 | Iustin Pop | def perspective_node_verify(params): |
367 | 3ecf6786 | Iustin Pop | """Run a verify sequence on this node. |
368 | 3ecf6786 | Iustin Pop | |
369 | 3ecf6786 | Iustin Pop | """ |
370 | a8083063 | Iustin Pop | return backend.VerifyNode(params[0]) |
371 | a8083063 | Iustin Pop | |
372 | 3ecf6786 | Iustin Pop | @staticmethod |
373 | 3ecf6786 | Iustin Pop | def perspective_node_start_master(params): |
374 | 3ecf6786 | Iustin Pop | """Promote this node to master status. |
375 | 3ecf6786 | Iustin Pop | |
376 | 3ecf6786 | Iustin Pop | """ |
377 | a8083063 | Iustin Pop | return backend.StartMaster() |
378 | a8083063 | Iustin Pop | |
379 | 3ecf6786 | Iustin Pop | @staticmethod |
380 | 3ecf6786 | Iustin Pop | def perspective_node_stop_master(params): |
381 | 3ecf6786 | Iustin Pop | """Demote this node from master status. |
382 | 3ecf6786 | Iustin Pop | |
383 | 3ecf6786 | Iustin Pop | """ |
384 | a8083063 | Iustin Pop | return backend.StopMaster() |
385 | a8083063 | Iustin Pop | |
386 | 3ecf6786 | Iustin Pop | @staticmethod |
387 | 3ecf6786 | Iustin Pop | def perspective_node_leave_cluster(params): |
388 | 3ecf6786 | Iustin Pop | """Cleanup after leaving a cluster. |
389 | 3ecf6786 | Iustin Pop | |
390 | 3ecf6786 | Iustin Pop | """ |
391 | a8083063 | Iustin Pop | return backend.LeaveCluster() |
392 | a8083063 | Iustin Pop | |
393 | 3ecf6786 | Iustin Pop | @staticmethod |
394 | 3ecf6786 | Iustin Pop | def perspective_node_volumes(params): |
395 | 3ecf6786 | Iustin Pop | """Query the list of all logical volume groups. |
396 | 3ecf6786 | Iustin Pop | |
397 | 3ecf6786 | Iustin Pop | """ |
398 | dcb93971 | Michael Hanselmann | return backend.NodeVolumes() |
399 | dcb93971 | Michael Hanselmann | |
400 | a8083063 | Iustin Pop | # cluster -------------------------- |
401 | a8083063 | Iustin Pop | |
402 | 3ecf6786 | Iustin Pop | @staticmethod |
403 | 3ecf6786 | Iustin Pop | def perspective_version(params): |
404 | 3ecf6786 | Iustin Pop | """Query version information. |
405 | 3ecf6786 | Iustin Pop | |
406 | 3ecf6786 | Iustin Pop | """ |
407 | a8083063 | Iustin Pop | return constants.PROTOCOL_VERSION |
408 | a8083063 | Iustin Pop | |
409 | 3ecf6786 | Iustin Pop | @staticmethod |
410 | 3ecf6786 | Iustin Pop | def perspective_upload_file(params): |
411 | 3ecf6786 | Iustin Pop | """Upload a file. |
412 | 3ecf6786 | Iustin Pop | |
413 | 3ecf6786 | Iustin Pop | Note that the backend implementation imposes strict rules on which |
414 | 3ecf6786 | Iustin Pop | files are accepted. |
415 | 3ecf6786 | Iustin Pop | |
416 | 3ecf6786 | Iustin Pop | """ |
417 | a8083063 | Iustin Pop | return backend.UploadFile(*params) |
418 | a8083063 | Iustin Pop | |
419 | a8083063 | Iustin Pop | |
420 | a8083063 | Iustin Pop | # os ----------------------- |
421 | a8083063 | Iustin Pop | |
422 | 3ecf6786 | Iustin Pop | @staticmethod |
423 | 3ecf6786 | Iustin Pop | def perspective_os_diagnose(params): |
424 | 3ecf6786 | Iustin Pop | """Query detailed information about existing OSes. |
425 | 3ecf6786 | Iustin Pop | |
426 | 3ecf6786 | Iustin Pop | """ |
427 | a8083063 | Iustin Pop | os_list = backend.DiagnoseOS() |
428 | a8083063 | Iustin Pop | if not os_list: |
429 | a8083063 | Iustin Pop | # this catches also return values of 'False', |
430 | a8083063 | Iustin Pop | # for which we can't iterate over |
431 | a8083063 | Iustin Pop | return os_list |
432 | a8083063 | Iustin Pop | result = [] |
433 | a8083063 | Iustin Pop | for data in os_list: |
434 | a8083063 | Iustin Pop | if isinstance(data, objects.OS): |
435 | a8083063 | Iustin Pop | result.append(data.Dumps()) |
436 | a8083063 | Iustin Pop | elif isinstance(data, errors.InvalidOS): |
437 | a8083063 | Iustin Pop | result.append(data.args) |
438 | a8083063 | Iustin Pop | else: |
439 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid result from backend.DiagnoseOS" |
440 | 3ecf6786 | Iustin Pop | " (class %s, %s)" % |
441 | 3ecf6786 | Iustin Pop | (str(data.__class__), data)) |
442 | a8083063 | Iustin Pop | |
443 | a8083063 | Iustin Pop | return result |
444 | a8083063 | Iustin Pop | |
445 | 3ecf6786 | Iustin Pop | @staticmethod |
446 | 3ecf6786 | Iustin Pop | def perspective_os_get(params): |
447 | 3ecf6786 | Iustin Pop | """Query information about a given OS. |
448 | 3ecf6786 | Iustin Pop | |
449 | 3ecf6786 | Iustin Pop | """ |
450 | a8083063 | Iustin Pop | name = params[0] |
451 | a8083063 | Iustin Pop | try: |
452 | 3ecf6786 | Iustin Pop | os_obj = backend.OSFromDisk(name).Dumps() |
453 | a8083063 | Iustin Pop | except errors.InvalidOS, err: |
454 | 3ecf6786 | Iustin Pop | os_obj = err.args |
455 | 3ecf6786 | Iustin Pop | return os_obj |
456 | a8083063 | Iustin Pop | |
457 | a8083063 | Iustin Pop | # hooks ----------------------- |
458 | a8083063 | Iustin Pop | |
459 | 3ecf6786 | Iustin Pop | @staticmethod |
460 | 3ecf6786 | Iustin Pop | def perspective_hooks_runner(params): |
461 | 3ecf6786 | Iustin Pop | """Run hook scripts. |
462 | 3ecf6786 | Iustin Pop | |
463 | 3ecf6786 | Iustin Pop | """ |
464 | a8083063 | Iustin Pop | hpath, phase, env = params |
465 | a8083063 | Iustin Pop | hr = backend.HooksRunner() |
466 | a8083063 | Iustin Pop | return hr.RunHooks(hpath, phase, env) |
467 | a8083063 | Iustin Pop | |
468 | a8083063 | Iustin Pop | |
469 | a8083063 | Iustin Pop | class MyRealm: |
470 | 3ecf6786 | Iustin Pop | """Simple realm that forwards all requests to a ServerObject. |
471 | 3ecf6786 | Iustin Pop | |
472 | 3ecf6786 | Iustin Pop | """ |
473 | a8083063 | Iustin Pop | __implements__ = portal.IRealm |
474 | 3ecf6786 | Iustin Pop | |
475 | a8083063 | Iustin Pop | def requestAvatar(self, avatarId, mind, *interfaces): |
476 | 3ecf6786 | Iustin Pop | """Return an avatar based on our ServerObject class. |
477 | 3ecf6786 | Iustin Pop | |
478 | 3ecf6786 | Iustin Pop | """ |
479 | a8083063 | Iustin Pop | if pb.IPerspective not in interfaces: |
480 | a8083063 | Iustin Pop | raise NotImplementedError |
481 | a8083063 | Iustin Pop | return pb.IPerspective, ServerObject(avatarId), lambda:None |
482 | a8083063 | Iustin Pop | |
483 | a8083063 | Iustin Pop | |
484 | a8083063 | Iustin Pop | def ParseOptions(): |
485 | a8083063 | Iustin Pop | """Parse the command line options. |
486 | a8083063 | Iustin Pop | |
487 | a8083063 | Iustin Pop | Returns: |
488 | a8083063 | Iustin Pop | (options, args) as from OptionParser.parse_args() |
489 | a8083063 | Iustin Pop | |
490 | a8083063 | Iustin Pop | """ |
491 | a8083063 | Iustin Pop | parser = OptionParser(description="Ganeti node daemon", |
492 | a8083063 | Iustin Pop | usage="%prog [-f] [-d]", |
493 | a8083063 | Iustin Pop | version="%%prog (ganeti) %s" % |
494 | a8083063 | Iustin Pop | constants.RELEASE_VERSION) |
495 | a8083063 | Iustin Pop | |
496 | a8083063 | Iustin Pop | parser.add_option("-f", "--foreground", dest="fork", |
497 | a8083063 | Iustin Pop | help="Don't detach from the current terminal", |
498 | a8083063 | Iustin Pop | default=True, action="store_false") |
499 | a8083063 | Iustin Pop | parser.add_option("-d", "--debug", dest="debug", |
500 | a8083063 | Iustin Pop | help="Enable some debug messages", |
501 | a8083063 | Iustin Pop | default=False, action="store_true") |
502 | a8083063 | Iustin Pop | options, args = parser.parse_args() |
503 | a8083063 | Iustin Pop | return options, args |
504 | a8083063 | Iustin Pop | |
505 | a8083063 | Iustin Pop | |
506 | a8083063 | Iustin Pop | def main(): |
507 | 3ecf6786 | Iustin Pop | """Main function for the node daemon. |
508 | 3ecf6786 | Iustin Pop | |
509 | 3ecf6786 | Iustin Pop | """ |
510 | a8083063 | Iustin Pop | options, args = ParseOptions() |
511 | a8083063 | Iustin Pop | for fname in (constants.SSL_CERT_FILE,): |
512 | a8083063 | Iustin Pop | if not os.path.isfile(fname): |
513 | a8083063 | Iustin Pop | print "config %s not there, will not run." % fname |
514 | a8083063 | Iustin Pop | sys.exit(5) |
515 | a8083063 | Iustin Pop | |
516 | a8083063 | Iustin Pop | try: |
517 | a8083063 | Iustin Pop | ss = ssconf.SimpleStore() |
518 | a8083063 | Iustin Pop | port = ss.GetNodeDaemonPort() |
519 | a8083063 | Iustin Pop | pwdata = ss.GetNodeDaemonPassword() |
520 | a8083063 | Iustin Pop | except errors.ConfigurationError, err: |
521 | a8083063 | Iustin Pop | print "Cluster configuration incomplete: '%s'" % str(err) |
522 | a8083063 | Iustin Pop | sys.exit(5) |
523 | a8083063 | Iustin Pop | |
524 | a8083063 | Iustin Pop | # become a daemon |
525 | a8083063 | Iustin Pop | if options.fork: |
526 | a8083063 | Iustin Pop | createDaemon() |
527 | a8083063 | Iustin Pop | |
528 | a8083063 | Iustin Pop | logger.SetupLogging(twisted_workaround=True, debug=options.debug, |
529 | a8083063 | Iustin Pop | program="ganeti-noded") |
530 | a8083063 | Iustin Pop | |
531 | a8083063 | Iustin Pop | p = portal.Portal(MyRealm()) |
532 | a8083063 | Iustin Pop | p.registerChecker( |
533 | a8083063 | Iustin Pop | checkers.InMemoryUsernamePasswordDatabaseDontUse(master_node=pwdata)) |
534 | a8083063 | Iustin Pop | reactor.listenSSL(port, pb.PBServerFactory(p), ServerContextFactory()) |
535 | a8083063 | Iustin Pop | reactor.run() |
536 | a8083063 | Iustin Pop | |
537 | a8083063 | Iustin Pop | |
538 | a8083063 | Iustin Pop | def createDaemon(): |
539 | a8083063 | Iustin Pop | """Detach a process from the controlling terminal and run it in the |
540 | a8083063 | Iustin Pop | background as a daemon. |
541 | 098c0958 | Michael Hanselmann | |
542 | a8083063 | Iustin Pop | """ |
543 | a8083063 | Iustin Pop | UMASK = 077 |
544 | a8083063 | Iustin Pop | WORKDIR = "/" |
545 | a8083063 | Iustin Pop | # Default maximum for the number of available file descriptors. |
546 | a8083063 | Iustin Pop | if 'SC_OPEN_MAX' in os.sysconf_names: |
547 | a8083063 | Iustin Pop | try: |
548 | a8083063 | Iustin Pop | MAXFD = os.sysconf('SC_OPEN_MAX') |
549 | a8083063 | Iustin Pop | if MAXFD < 0: |
550 | a8083063 | Iustin Pop | MAXFD = 1024 |
551 | a8083063 | Iustin Pop | except OSError: |
552 | a8083063 | Iustin Pop | MAXFD = 1024 |
553 | a8083063 | Iustin Pop | else: |
554 | a8083063 | Iustin Pop | MAXFD = 1024 |
555 | a8083063 | Iustin Pop | # The standard I/O file descriptors are redirected to /dev/null by default. |
556 | a8083063 | Iustin Pop | #REDIRECT_TO = getattr(os, "devnull", "/dev/null") |
557 | a8083063 | Iustin Pop | REDIRECT_TO = constants.LOG_NODESERVER |
558 | a8083063 | Iustin Pop | try: |
559 | a8083063 | Iustin Pop | pid = os.fork() |
560 | a8083063 | Iustin Pop | except OSError, e: |
561 | 3ecf6786 | Iustin Pop | raise Exception("%s [%d]" % (e.strerror, e.errno)) |
562 | 3c9a0742 | Michael Hanselmann | if (pid == 0): # The first child. |
563 | a8083063 | Iustin Pop | os.setsid() |
564 | a8083063 | Iustin Pop | try: |
565 | 3c9a0742 | Michael Hanselmann | pid = os.fork() # Fork a second child. |
566 | a8083063 | Iustin Pop | except OSError, e: |
567 | 3ecf6786 | Iustin Pop | raise Exception("%s [%d]" % (e.strerror, e.errno)) |
568 | 3c9a0742 | Michael Hanselmann | if (pid == 0): # The second child. |
569 | a8083063 | Iustin Pop | os.chdir(WORKDIR) |
570 | a8083063 | Iustin Pop | os.umask(UMASK) |
571 | a8083063 | Iustin Pop | else: |
572 | a8083063 | Iustin Pop | # exit() or _exit()? See below. |
573 | 3c9a0742 | Michael Hanselmann | os._exit(0) # Exit parent (the first child) of the second child. |
574 | a8083063 | Iustin Pop | else: |
575 | 3c9a0742 | Michael Hanselmann | os._exit(0) # Exit parent of the first child. |
576 | a8083063 | Iustin Pop | maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1] |
577 | a8083063 | Iustin Pop | if (maxfd == resource.RLIM_INFINITY): |
578 | a8083063 | Iustin Pop | maxfd = MAXFD |
579 | a8083063 | Iustin Pop | |
580 | a8083063 | Iustin Pop | # Iterate through and close all file descriptors. |
581 | a8083063 | Iustin Pop | for fd in range(0, maxfd): |
582 | a8083063 | Iustin Pop | try: |
583 | a8083063 | Iustin Pop | os.close(fd) |
584 | 3c9a0742 | Michael Hanselmann | except OSError: # ERROR, fd wasn't open to begin with (ignored) |
585 | a8083063 | Iustin Pop | pass |
586 | a8083063 | Iustin Pop | os.open(REDIRECT_TO, os.O_RDWR|os.O_CREAT|os.O_APPEND) # standard input (0) |
587 | a8083063 | Iustin Pop | # Duplicate standard input to standard output and standard error. |
588 | 3c9a0742 | Michael Hanselmann | os.dup2(0, 1) # standard output (1) |
589 | 3c9a0742 | Michael Hanselmann | os.dup2(0, 2) # standard error (2) |
590 | a8083063 | Iustin Pop | return(0) |
591 | a8083063 | Iustin Pop | |
592 | a8083063 | Iustin Pop | |
593 | 3ecf6786 | Iustin Pop | if __name__ == '__main__': |
594 | a8083063 | Iustin Pop | main() |