root / daemons / ganeti-noded @ aa9075c5
History | View | Annotate | Download (16.9 kB)
1 | a8083063 | Iustin Pop | #!/usr/bin/python |
---|---|---|---|
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 traceback |
30 | 761ce945 | Guido Trotter | import SocketServer |
31 | 0214b0c0 | Iustin Pop | import errno |
32 | c89189b1 | Iustin Pop | import logging |
33 | 84b58db2 | Michael Hanselmann | import signal |
34 | a8083063 | Iustin Pop | |
35 | a8083063 | Iustin Pop | from optparse import OptionParser |
36 | a8083063 | Iustin Pop | |
37 | a8083063 | Iustin Pop | from ganeti import backend |
38 | a8083063 | Iustin Pop | from ganeti import logger |
39 | a8083063 | Iustin Pop | from ganeti import constants |
40 | a8083063 | Iustin Pop | from ganeti import objects |
41 | a8083063 | Iustin Pop | from ganeti import errors |
42 | a8083063 | Iustin Pop | from ganeti import ssconf |
43 | 1df6506c | Michael Hanselmann | from ganeti import http |
44 | 16abfbc2 | Alexander Schreiber | from ganeti import utils |
45 | a8083063 | Iustin Pop | |
46 | a8083063 | Iustin Pop | |
47 | 1df6506c | Michael Hanselmann | class NodeDaemonRequestHandler(http.HTTPRequestHandler): |
48 | 3ecf6786 | Iustin Pop | """The server implementation. |
49 | 3ecf6786 | Iustin Pop | |
50 | 3ecf6786 | Iustin Pop | This class holds all methods exposed over the RPC interface. |
51 | 3ecf6786 | Iustin Pop | |
52 | 3ecf6786 | Iustin Pop | """ |
53 | 1df6506c | Michael Hanselmann | def HandleRequest(self): |
54 | 1df6506c | Michael Hanselmann | """Handle a request. |
55 | a8083063 | Iustin Pop | |
56 | 098c0958 | Michael Hanselmann | """ |
57 | 1df6506c | Michael Hanselmann | if self.command.upper() != "PUT": |
58 | 1df6506c | Michael Hanselmann | raise http.HTTPBadRequest() |
59 | 1df6506c | Michael Hanselmann | |
60 | 81010134 | Iustin Pop | path = self.path |
61 | 81010134 | Iustin Pop | if path.startswith("/"): |
62 | 81010134 | Iustin Pop | path = path[1:] |
63 | 81010134 | Iustin Pop | |
64 | 1df6506c | Michael Hanselmann | method = getattr(self, "perspective_%s" % path, None) |
65 | 1df6506c | Michael Hanselmann | if method is None: |
66 | 1df6506c | Michael Hanselmann | raise httperror.HTTPNotFound() |
67 | a8083063 | Iustin Pop | |
68 | 81010134 | Iustin Pop | try: |
69 | aa9075c5 | Michael Hanselmann | try: |
70 | aa9075c5 | Michael Hanselmann | return method(self.post_data) |
71 | aa9075c5 | Michael Hanselmann | except: |
72 | aa9075c5 | Michael Hanselmann | logging.exception("Error in RPC call") |
73 | aa9075c5 | Michael Hanselmann | raise |
74 | 9ae49f27 | Guido Trotter | except errors.QuitGanetiException, err: |
75 | 84b58db2 | Michael Hanselmann | # Tell parent to quit |
76 | 84b58db2 | Michael Hanselmann | os.kill(self.server.noded_pid, signal.SIGTERM) |
77 | a8083063 | Iustin Pop | |
78 | a8083063 | Iustin Pop | # the new block devices -------------------------- |
79 | a8083063 | Iustin Pop | |
80 | 3ecf6786 | Iustin Pop | @staticmethod |
81 | 3ecf6786 | Iustin Pop | def perspective_blockdev_create(params): |
82 | 3ecf6786 | Iustin Pop | """Create a block device. |
83 | 3ecf6786 | Iustin Pop | |
84 | 3ecf6786 | Iustin Pop | """ |
85 | 3f78eef2 | Iustin Pop | bdev_s, size, owner, on_primary, info = params |
86 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
87 | a8083063 | Iustin Pop | if bdev is None: |
88 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
89 | 3f78eef2 | Iustin Pop | return backend.CreateBlockDevice(bdev, size, owner, on_primary, info) |
90 | a8083063 | Iustin Pop | |
91 | 3ecf6786 | Iustin Pop | @staticmethod |
92 | 3ecf6786 | Iustin Pop | def perspective_blockdev_remove(params): |
93 | 3ecf6786 | Iustin Pop | """Remove a block device. |
94 | 3ecf6786 | Iustin Pop | |
95 | 3ecf6786 | Iustin Pop | """ |
96 | a8083063 | Iustin Pop | bdev_s = params[0] |
97 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
98 | a8083063 | Iustin Pop | return backend.RemoveBlockDevice(bdev) |
99 | a8083063 | Iustin Pop | |
100 | 3ecf6786 | Iustin Pop | @staticmethod |
101 | f3e513ad | Iustin Pop | def perspective_blockdev_rename(params): |
102 | f3e513ad | Iustin Pop | """Remove a block device. |
103 | f3e513ad | Iustin Pop | |
104 | f3e513ad | Iustin Pop | """ |
105 | f3e513ad | Iustin Pop | devlist = [(objects.Disk.FromDict(ds), uid) for ds, uid in params] |
106 | f3e513ad | Iustin Pop | return backend.RenameBlockDevices(devlist) |
107 | f3e513ad | Iustin Pop | |
108 | f3e513ad | Iustin Pop | @staticmethod |
109 | 3ecf6786 | Iustin Pop | def perspective_blockdev_assemble(params): |
110 | 3ecf6786 | Iustin Pop | """Assemble a block device. |
111 | 3ecf6786 | Iustin Pop | |
112 | 3ecf6786 | Iustin Pop | """ |
113 | 3f78eef2 | Iustin Pop | bdev_s, owner, on_primary = params |
114 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
115 | a8083063 | Iustin Pop | if bdev is None: |
116 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
117 | 3f78eef2 | Iustin Pop | return backend.AssembleBlockDevice(bdev, owner, on_primary) |
118 | a8083063 | Iustin Pop | |
119 | 3ecf6786 | Iustin Pop | @staticmethod |
120 | 3ecf6786 | Iustin Pop | def perspective_blockdev_shutdown(params): |
121 | 3ecf6786 | Iustin Pop | """Shutdown a block device. |
122 | 3ecf6786 | Iustin Pop | |
123 | 3ecf6786 | Iustin Pop | """ |
124 | a8083063 | Iustin Pop | bdev_s = params[0] |
125 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
126 | a8083063 | Iustin Pop | if bdev is None: |
127 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
128 | a8083063 | Iustin Pop | return backend.ShutdownBlockDevice(bdev) |
129 | a8083063 | Iustin Pop | |
130 | 3ecf6786 | Iustin Pop | @staticmethod |
131 | 153d9724 | Iustin Pop | def perspective_blockdev_addchildren(params): |
132 | 3ecf6786 | Iustin Pop | """Add a child to a mirror device. |
133 | 3ecf6786 | Iustin Pop | |
134 | 3ecf6786 | Iustin Pop | Note: this is only valid for mirror devices. It's the caller's duty |
135 | 3ecf6786 | Iustin Pop | to send a correct disk, otherwise we raise an error. |
136 | 3ecf6786 | Iustin Pop | |
137 | 3ecf6786 | Iustin Pop | """ |
138 | a8083063 | Iustin Pop | bdev_s, ndev_s = params |
139 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
140 | 153d9724 | Iustin Pop | ndevs = [objects.Disk.FromDict(disk_s) for disk_s in ndev_s] |
141 | 153d9724 | Iustin Pop | if bdev is None or ndevs.count(None) > 0: |
142 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
143 | 153d9724 | Iustin Pop | return backend.MirrorAddChildren(bdev, ndevs) |
144 | a8083063 | Iustin Pop | |
145 | 3ecf6786 | Iustin Pop | @staticmethod |
146 | 153d9724 | Iustin Pop | def perspective_blockdev_removechildren(params): |
147 | 3ecf6786 | Iustin Pop | """Remove a child from a mirror device. |
148 | 3ecf6786 | Iustin Pop | |
149 | 3ecf6786 | Iustin Pop | This is only valid for mirror devices, of course. It's the callers |
150 | 3ecf6786 | Iustin Pop | duty to send a correct disk, otherwise we raise an error. |
151 | 3ecf6786 | Iustin Pop | |
152 | 3ecf6786 | Iustin Pop | """ |
153 | a8083063 | Iustin Pop | bdev_s, ndev_s = params |
154 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
155 | 153d9724 | Iustin Pop | ndevs = [objects.Disk.FromDict(disk_s) for disk_s in ndev_s] |
156 | 153d9724 | Iustin Pop | if bdev is None or ndevs.count(None) > 0: |
157 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
158 | 153d9724 | Iustin Pop | return backend.MirrorRemoveChildren(bdev, ndevs) |
159 | a8083063 | Iustin Pop | |
160 | 3ecf6786 | Iustin Pop | @staticmethod |
161 | 3ecf6786 | Iustin Pop | def perspective_blockdev_getmirrorstatus(params): |
162 | 3ecf6786 | Iustin Pop | """Return the mirror status for a list of disks. |
163 | 3ecf6786 | Iustin Pop | |
164 | 3ecf6786 | Iustin Pop | """ |
165 | 319856a9 | Michael Hanselmann | disks = [objects.Disk.FromDict(dsk_s) |
166 | a8083063 | Iustin Pop | for dsk_s in params] |
167 | a8083063 | Iustin Pop | return backend.GetMirrorStatus(disks) |
168 | a8083063 | Iustin Pop | |
169 | 3ecf6786 | Iustin Pop | @staticmethod |
170 | 3ecf6786 | Iustin Pop | def perspective_blockdev_find(params): |
171 | 3ecf6786 | Iustin Pop | """Expose the FindBlockDevice functionality for a disk. |
172 | 3ecf6786 | Iustin Pop | |
173 | 3ecf6786 | Iustin Pop | This will try to find but not activate a disk. |
174 | 3ecf6786 | Iustin Pop | |
175 | 3ecf6786 | Iustin Pop | """ |
176 | 319856a9 | Michael Hanselmann | disk = objects.Disk.FromDict(params[0]) |
177 | a8083063 | Iustin Pop | return backend.FindBlockDevice(disk) |
178 | a8083063 | Iustin Pop | |
179 | 3ecf6786 | Iustin Pop | @staticmethod |
180 | 3ecf6786 | Iustin Pop | def perspective_blockdev_snapshot(params): |
181 | 3ecf6786 | Iustin Pop | """Create a snapshot device. |
182 | 3ecf6786 | Iustin Pop | |
183 | 3ecf6786 | Iustin Pop | Note that this is only valid for LVM disks, if we get passed |
184 | 3ecf6786 | Iustin Pop | something else we raise an exception. The snapshot device can be |
185 | 3ecf6786 | Iustin Pop | remove by calling the generic block device remove call. |
186 | 3ecf6786 | Iustin Pop | |
187 | 3ecf6786 | Iustin Pop | """ |
188 | 319856a9 | Michael Hanselmann | cfbd = objects.Disk.FromDict(params[0]) |
189 | a8083063 | Iustin Pop | return backend.SnapshotBlockDevice(cfbd) |
190 | a8083063 | Iustin Pop | |
191 | 4c8ba8b3 | Iustin Pop | @staticmethod |
192 | 4c8ba8b3 | Iustin Pop | def perspective_blockdev_grow(params): |
193 | 4c8ba8b3 | Iustin Pop | """Grow a stack of devices. |
194 | 4c8ba8b3 | Iustin Pop | |
195 | 4c8ba8b3 | Iustin Pop | """ |
196 | 4c8ba8b3 | Iustin Pop | cfbd = objects.Disk.FromDict(params[0]) |
197 | 4c8ba8b3 | Iustin Pop | amount = params[1] |
198 | 4c8ba8b3 | Iustin Pop | return backend.GrowBlockDevice(cfbd, amount) |
199 | 4c8ba8b3 | Iustin Pop | |
200 | d61cbe76 | Iustin Pop | @staticmethod |
201 | d61cbe76 | Iustin Pop | def perspective_blockdev_close(params): |
202 | d61cbe76 | Iustin Pop | """Closes the given block devices. |
203 | d61cbe76 | Iustin Pop | |
204 | d61cbe76 | Iustin Pop | """ |
205 | d61cbe76 | Iustin Pop | disks = [objects.Disk.FromDict(cf) for cf in params] |
206 | d61cbe76 | Iustin Pop | return backend.CloseBlockDevices(disks) |
207 | d61cbe76 | Iustin Pop | |
208 | a8083063 | Iustin Pop | # export/import -------------------------- |
209 | a8083063 | Iustin Pop | |
210 | 3ecf6786 | Iustin Pop | @staticmethod |
211 | 3ecf6786 | Iustin Pop | def perspective_snapshot_export(params): |
212 | 3ecf6786 | Iustin Pop | """Export a given snapshot. |
213 | 3ecf6786 | Iustin Pop | |
214 | 3ecf6786 | Iustin Pop | """ |
215 | 319856a9 | Michael Hanselmann | disk = objects.Disk.FromDict(params[0]) |
216 | a8083063 | Iustin Pop | dest_node = params[1] |
217 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[2]) |
218 | 3ecf6786 | Iustin Pop | return backend.ExportSnapshot(disk, dest_node, instance) |
219 | 3ecf6786 | Iustin Pop | |
220 | 3ecf6786 | Iustin Pop | @staticmethod |
221 | 3ecf6786 | Iustin Pop | def perspective_finalize_export(params): |
222 | 3ecf6786 | Iustin Pop | """Expose the finalize export functionality. |
223 | a8083063 | Iustin Pop | |
224 | 3ecf6786 | Iustin Pop | """ |
225 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[0]) |
226 | 319856a9 | Michael Hanselmann | snap_disks = [objects.Disk.FromDict(str_data) |
227 | a8083063 | Iustin Pop | for str_data in params[1]] |
228 | a8083063 | Iustin Pop | return backend.FinalizeExport(instance, snap_disks) |
229 | a8083063 | Iustin Pop | |
230 | 3ecf6786 | Iustin Pop | @staticmethod |
231 | 3ecf6786 | Iustin Pop | def perspective_export_info(params): |
232 | 3ecf6786 | Iustin Pop | """Query information about an existing export on this node. |
233 | 3ecf6786 | Iustin Pop | |
234 | 3ecf6786 | Iustin Pop | The given path may not contain an export, in which case we return |
235 | 3ecf6786 | Iustin Pop | None. |
236 | 3ecf6786 | Iustin Pop | |
237 | 3ecf6786 | Iustin Pop | """ |
238 | 3ecf6786 | Iustin Pop | path = params[0] |
239 | 3ecf6786 | Iustin Pop | einfo = backend.ExportInfo(path) |
240 | a8083063 | Iustin Pop | if einfo is None: |
241 | a8083063 | Iustin Pop | return einfo |
242 | a8083063 | Iustin Pop | return einfo.Dumps() |
243 | a8083063 | Iustin Pop | |
244 | 3ecf6786 | Iustin Pop | @staticmethod |
245 | 3ecf6786 | Iustin Pop | def perspective_export_list(params): |
246 | 3ecf6786 | Iustin Pop | """List the available exports on this node. |
247 | 3ecf6786 | Iustin Pop | |
248 | 3ecf6786 | Iustin Pop | Note that as opposed to export_info, which may query data about an |
249 | 3ecf6786 | Iustin Pop | export in any path, this only queries the standard Ganeti path |
250 | 3ecf6786 | Iustin Pop | (constants.EXPORT_DIR). |
251 | 3ecf6786 | Iustin Pop | |
252 | 3ecf6786 | Iustin Pop | """ |
253 | a8083063 | Iustin Pop | return backend.ListExports() |
254 | a8083063 | Iustin Pop | |
255 | 3ecf6786 | Iustin Pop | @staticmethod |
256 | 3ecf6786 | Iustin Pop | def perspective_export_remove(params): |
257 | 3ecf6786 | Iustin Pop | """Remove an export. |
258 | 3ecf6786 | Iustin Pop | |
259 | 3ecf6786 | Iustin Pop | """ |
260 | a8083063 | Iustin Pop | export = params[0] |
261 | a8083063 | Iustin Pop | return backend.RemoveExport(export) |
262 | a8083063 | Iustin Pop | |
263 | a8083063 | Iustin Pop | # volume -------------------------- |
264 | a8083063 | Iustin Pop | |
265 | 3ecf6786 | Iustin Pop | @staticmethod |
266 | 3ecf6786 | Iustin Pop | def perspective_volume_list(params): |
267 | 3ecf6786 | Iustin Pop | """Query the list of logical volumes in a given volume group. |
268 | 3ecf6786 | Iustin Pop | |
269 | 3ecf6786 | Iustin Pop | """ |
270 | a8083063 | Iustin Pop | vgname = params[0] |
271 | a8083063 | Iustin Pop | return backend.GetVolumeList(vgname) |
272 | a8083063 | Iustin Pop | |
273 | 3ecf6786 | Iustin Pop | @staticmethod |
274 | 3ecf6786 | Iustin Pop | def perspective_vg_list(params): |
275 | 3ecf6786 | Iustin Pop | """Query the list of volume groups. |
276 | 3ecf6786 | Iustin Pop | |
277 | 3ecf6786 | Iustin Pop | """ |
278 | a8083063 | Iustin Pop | return backend.ListVolumeGroups() |
279 | a8083063 | Iustin Pop | |
280 | a8083063 | Iustin Pop | # bridge -------------------------- |
281 | a8083063 | Iustin Pop | |
282 | 3ecf6786 | Iustin Pop | @staticmethod |
283 | 3ecf6786 | Iustin Pop | def perspective_bridges_exist(params): |
284 | 3ecf6786 | Iustin Pop | """Check if all bridges given exist on this node. |
285 | 3ecf6786 | Iustin Pop | |
286 | 3ecf6786 | Iustin Pop | """ |
287 | a8083063 | Iustin Pop | bridges_list = params[0] |
288 | a8083063 | Iustin Pop | return backend.BridgesExist(bridges_list) |
289 | a8083063 | Iustin Pop | |
290 | a8083063 | Iustin Pop | # instance -------------------------- |
291 | a8083063 | Iustin Pop | |
292 | 3ecf6786 | Iustin Pop | @staticmethod |
293 | 3ecf6786 | Iustin Pop | def perspective_instance_os_add(params): |
294 | 3ecf6786 | Iustin Pop | """Install an OS on a given instance. |
295 | 3ecf6786 | Iustin Pop | |
296 | 3ecf6786 | Iustin Pop | """ |
297 | a8083063 | Iustin Pop | inst_s, os_disk, swap_disk = params |
298 | 319856a9 | Michael Hanselmann | inst = objects.Instance.FromDict(inst_s) |
299 | a8083063 | Iustin Pop | return backend.AddOSToInstance(inst, os_disk, swap_disk) |
300 | a8083063 | Iustin Pop | |
301 | 3ecf6786 | Iustin Pop | @staticmethod |
302 | decd5f45 | Iustin Pop | def perspective_instance_run_rename(params): |
303 | decd5f45 | Iustin Pop | """Runs the OS rename script for an instance. |
304 | decd5f45 | Iustin Pop | |
305 | decd5f45 | Iustin Pop | """ |
306 | decd5f45 | Iustin Pop | inst_s, old_name, os_disk, swap_disk = params |
307 | 319856a9 | Michael Hanselmann | inst = objects.Instance.FromDict(inst_s) |
308 | decd5f45 | Iustin Pop | return backend.RunRenameInstance(inst, old_name, os_disk, swap_disk) |
309 | decd5f45 | Iustin Pop | |
310 | decd5f45 | Iustin Pop | @staticmethod |
311 | 3ecf6786 | Iustin Pop | def perspective_instance_os_import(params): |
312 | 3ecf6786 | Iustin Pop | """Run the import function of an OS onto a given instance. |
313 | 3ecf6786 | Iustin Pop | |
314 | 3ecf6786 | Iustin Pop | """ |
315 | a8083063 | Iustin Pop | inst_s, os_disk, swap_disk, src_node, src_image = params |
316 | 319856a9 | Michael Hanselmann | inst = objects.Instance.FromDict(inst_s) |
317 | a8083063 | Iustin Pop | return backend.ImportOSIntoInstance(inst, os_disk, swap_disk, |
318 | a8083063 | Iustin Pop | src_node, src_image) |
319 | a8083063 | Iustin Pop | |
320 | 3ecf6786 | Iustin Pop | @staticmethod |
321 | 3ecf6786 | Iustin Pop | def perspective_instance_shutdown(params): |
322 | 3ecf6786 | Iustin Pop | """Shutdown an instance. |
323 | 3ecf6786 | Iustin Pop | |
324 | 3ecf6786 | Iustin Pop | """ |
325 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[0]) |
326 | a8083063 | Iustin Pop | return backend.ShutdownInstance(instance) |
327 | a8083063 | Iustin Pop | |
328 | 3ecf6786 | Iustin Pop | @staticmethod |
329 | 3ecf6786 | Iustin Pop | def perspective_instance_start(params): |
330 | 3ecf6786 | Iustin Pop | """Start an instance. |
331 | 3ecf6786 | Iustin Pop | |
332 | 3ecf6786 | Iustin Pop | """ |
333 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[0]) |
334 | a8083063 | Iustin Pop | extra_args = params[1] |
335 | a8083063 | Iustin Pop | return backend.StartInstance(instance, extra_args) |
336 | a8083063 | Iustin Pop | |
337 | 3ecf6786 | Iustin Pop | @staticmethod |
338 | 2a10865c | Iustin Pop | def perspective_instance_migrate(params): |
339 | 2a10865c | Iustin Pop | """Migrates an instance. |
340 | 2a10865c | Iustin Pop | |
341 | 2a10865c | Iustin Pop | """ |
342 | 2a10865c | Iustin Pop | instance, target, live = params |
343 | 2a10865c | Iustin Pop | return backend.MigrateInstance(instance, target, live) |
344 | 2a10865c | Iustin Pop | |
345 | 2a10865c | Iustin Pop | @staticmethod |
346 | 007a2f3e | Alexander Schreiber | def perspective_instance_reboot(params): |
347 | 007a2f3e | Alexander Schreiber | """Reboot an instance. |
348 | 007a2f3e | Alexander Schreiber | |
349 | 007a2f3e | Alexander Schreiber | """ |
350 | 007a2f3e | Alexander Schreiber | instance = objects.Instance.FromDict(params[0]) |
351 | 007a2f3e | Alexander Schreiber | reboot_type = params[1] |
352 | 007a2f3e | Alexander Schreiber | extra_args = params[2] |
353 | 007a2f3e | Alexander Schreiber | return backend.RebootInstance(instance, reboot_type, extra_args) |
354 | 007a2f3e | Alexander Schreiber | |
355 | 007a2f3e | Alexander Schreiber | @staticmethod |
356 | 3ecf6786 | Iustin Pop | def perspective_instance_info(params): |
357 | 3ecf6786 | Iustin Pop | """Query instance information. |
358 | 3ecf6786 | Iustin Pop | |
359 | 3ecf6786 | Iustin Pop | """ |
360 | a8083063 | Iustin Pop | return backend.GetInstanceInfo(params[0]) |
361 | a8083063 | Iustin Pop | |
362 | 3ecf6786 | Iustin Pop | @staticmethod |
363 | 3ecf6786 | Iustin Pop | def perspective_all_instances_info(params): |
364 | 3ecf6786 | Iustin Pop | """Query information about all instances. |
365 | 3ecf6786 | Iustin Pop | |
366 | 3ecf6786 | Iustin Pop | """ |
367 | a8083063 | Iustin Pop | return backend.GetAllInstancesInfo() |
368 | a8083063 | Iustin Pop | |
369 | 3ecf6786 | Iustin Pop | @staticmethod |
370 | 3ecf6786 | Iustin Pop | def perspective_instance_list(params): |
371 | 3ecf6786 | Iustin Pop | """Query the list of running instances. |
372 | 3ecf6786 | Iustin Pop | |
373 | 3ecf6786 | Iustin Pop | """ |
374 | a8083063 | Iustin Pop | return backend.GetInstanceList() |
375 | a8083063 | Iustin Pop | |
376 | a8083063 | Iustin Pop | # node -------------------------- |
377 | a8083063 | Iustin Pop | |
378 | 3ecf6786 | Iustin Pop | @staticmethod |
379 | 16abfbc2 | Alexander Schreiber | def perspective_node_tcp_ping(params): |
380 | 16abfbc2 | Alexander Schreiber | """Do a TcpPing on the remote node. |
381 | 16abfbc2 | Alexander Schreiber | |
382 | 16abfbc2 | Alexander Schreiber | """ |
383 | b15d625f | Iustin Pop | return utils.TcpPing(params[1], params[2], timeout=params[3], |
384 | b15d625f | Iustin Pop | live_port_needed=params[4], source=params[0]) |
385 | 16abfbc2 | Alexander Schreiber | |
386 | 16abfbc2 | Alexander Schreiber | @staticmethod |
387 | 3ecf6786 | Iustin Pop | def perspective_node_info(params): |
388 | 3ecf6786 | Iustin Pop | """Query node information. |
389 | 3ecf6786 | Iustin Pop | |
390 | 3ecf6786 | Iustin Pop | """ |
391 | a8083063 | Iustin Pop | vgname = params[0] |
392 | a8083063 | Iustin Pop | return backend.GetNodeInfo(vgname) |
393 | a8083063 | Iustin Pop | |
394 | 3ecf6786 | Iustin Pop | @staticmethod |
395 | 3ecf6786 | Iustin Pop | def perspective_node_add(params): |
396 | 3ecf6786 | Iustin Pop | """Complete the registration of this node in the cluster. |
397 | 3ecf6786 | Iustin Pop | |
398 | 3ecf6786 | Iustin Pop | """ |
399 | a8083063 | Iustin Pop | return backend.AddNode(params[0], params[1], params[2], |
400 | a8083063 | Iustin Pop | params[3], params[4], params[5]) |
401 | a8083063 | Iustin Pop | |
402 | 3ecf6786 | Iustin Pop | @staticmethod |
403 | 3ecf6786 | Iustin Pop | def perspective_node_verify(params): |
404 | 3ecf6786 | Iustin Pop | """Run a verify sequence on this node. |
405 | 3ecf6786 | Iustin Pop | |
406 | 3ecf6786 | Iustin Pop | """ |
407 | a8083063 | Iustin Pop | return backend.VerifyNode(params[0]) |
408 | a8083063 | Iustin Pop | |
409 | 3ecf6786 | Iustin Pop | @staticmethod |
410 | 3ecf6786 | Iustin Pop | def perspective_node_start_master(params): |
411 | 3ecf6786 | Iustin Pop | """Promote this node to master status. |
412 | 3ecf6786 | Iustin Pop | |
413 | 3ecf6786 | Iustin Pop | """ |
414 | 1c65840b | Iustin Pop | return backend.StartMaster(params[0]) |
415 | a8083063 | Iustin Pop | |
416 | 3ecf6786 | Iustin Pop | @staticmethod |
417 | 3ecf6786 | Iustin Pop | def perspective_node_stop_master(params): |
418 | 3ecf6786 | Iustin Pop | """Demote this node from master status. |
419 | 3ecf6786 | Iustin Pop | |
420 | 3ecf6786 | Iustin Pop | """ |
421 | 1c65840b | Iustin Pop | return backend.StopMaster(params[0]) |
422 | a8083063 | Iustin Pop | |
423 | 3ecf6786 | Iustin Pop | @staticmethod |
424 | 3ecf6786 | Iustin Pop | def perspective_node_leave_cluster(params): |
425 | 3ecf6786 | Iustin Pop | """Cleanup after leaving a cluster. |
426 | 3ecf6786 | Iustin Pop | |
427 | 3ecf6786 | Iustin Pop | """ |
428 | a8083063 | Iustin Pop | return backend.LeaveCluster() |
429 | a8083063 | Iustin Pop | |
430 | 3ecf6786 | Iustin Pop | @staticmethod |
431 | 3ecf6786 | Iustin Pop | def perspective_node_volumes(params): |
432 | 3ecf6786 | Iustin Pop | """Query the list of all logical volume groups. |
433 | 3ecf6786 | Iustin Pop | |
434 | 3ecf6786 | Iustin Pop | """ |
435 | dcb93971 | Michael Hanselmann | return backend.NodeVolumes() |
436 | dcb93971 | Michael Hanselmann | |
437 | a8083063 | Iustin Pop | # cluster -------------------------- |
438 | a8083063 | Iustin Pop | |
439 | 3ecf6786 | Iustin Pop | @staticmethod |
440 | 3ecf6786 | Iustin Pop | def perspective_version(params): |
441 | 3ecf6786 | Iustin Pop | """Query version information. |
442 | 3ecf6786 | Iustin Pop | |
443 | 3ecf6786 | Iustin Pop | """ |
444 | a8083063 | Iustin Pop | return constants.PROTOCOL_VERSION |
445 | a8083063 | Iustin Pop | |
446 | 3ecf6786 | Iustin Pop | @staticmethod |
447 | 3ecf6786 | Iustin Pop | def perspective_upload_file(params): |
448 | 3ecf6786 | Iustin Pop | """Upload a file. |
449 | 3ecf6786 | Iustin Pop | |
450 | 3ecf6786 | Iustin Pop | Note that the backend implementation imposes strict rules on which |
451 | 3ecf6786 | Iustin Pop | files are accepted. |
452 | 3ecf6786 | Iustin Pop | |
453 | 3ecf6786 | Iustin Pop | """ |
454 | a8083063 | Iustin Pop | return backend.UploadFile(*params) |
455 | a8083063 | Iustin Pop | |
456 | a8083063 | Iustin Pop | |
457 | a8083063 | Iustin Pop | # os ----------------------- |
458 | a8083063 | Iustin Pop | |
459 | 3ecf6786 | Iustin Pop | @staticmethod |
460 | 3ecf6786 | Iustin Pop | def perspective_os_diagnose(params): |
461 | 3ecf6786 | Iustin Pop | """Query detailed information about existing OSes. |
462 | 3ecf6786 | Iustin Pop | |
463 | 3ecf6786 | Iustin Pop | """ |
464 | 4e679f11 | Guido Trotter | return [os.ToDict() for os in backend.DiagnoseOS()] |
465 | a8083063 | Iustin Pop | |
466 | 3ecf6786 | Iustin Pop | @staticmethod |
467 | 3ecf6786 | Iustin Pop | def perspective_os_get(params): |
468 | 3ecf6786 | Iustin Pop | """Query information about a given OS. |
469 | 3ecf6786 | Iustin Pop | |
470 | 3ecf6786 | Iustin Pop | """ |
471 | a8083063 | Iustin Pop | name = params[0] |
472 | a8083063 | Iustin Pop | try: |
473 | dfa96ded | Guido Trotter | os_obj = backend.OSFromDisk(name) |
474 | a8083063 | Iustin Pop | except errors.InvalidOS, err: |
475 | dfa96ded | Guido Trotter | os_obj = objects.OS.FromInvalidOS(err) |
476 | dfa96ded | Guido Trotter | return os_obj.ToDict() |
477 | a8083063 | Iustin Pop | |
478 | a8083063 | Iustin Pop | # hooks ----------------------- |
479 | a8083063 | Iustin Pop | |
480 | 3ecf6786 | Iustin Pop | @staticmethod |
481 | 3ecf6786 | Iustin Pop | def perspective_hooks_runner(params): |
482 | 3ecf6786 | Iustin Pop | """Run hook scripts. |
483 | 3ecf6786 | Iustin Pop | |
484 | 3ecf6786 | Iustin Pop | """ |
485 | a8083063 | Iustin Pop | hpath, phase, env = params |
486 | a8083063 | Iustin Pop | hr = backend.HooksRunner() |
487 | a8083063 | Iustin Pop | return hr.RunHooks(hpath, phase, env) |
488 | a8083063 | Iustin Pop | |
489 | 8d528b7c | Iustin Pop | # iallocator ----------------- |
490 | 8d528b7c | Iustin Pop | |
491 | 8d528b7c | Iustin Pop | @staticmethod |
492 | 8d528b7c | Iustin Pop | def perspective_iallocator_runner(params): |
493 | 8d528b7c | Iustin Pop | """Run an iallocator script. |
494 | 8d528b7c | Iustin Pop | |
495 | 8d528b7c | Iustin Pop | """ |
496 | 8d528b7c | Iustin Pop | name, idata = params |
497 | 8d528b7c | Iustin Pop | iar = backend.IAllocatorRunner() |
498 | 8d528b7c | Iustin Pop | return iar.Run(name, idata) |
499 | 8d528b7c | Iustin Pop | |
500 | 06009e27 | Iustin Pop | # test ----------------------- |
501 | 06009e27 | Iustin Pop | |
502 | 06009e27 | Iustin Pop | @staticmethod |
503 | 06009e27 | Iustin Pop | def perspective_test_delay(params): |
504 | 06009e27 | Iustin Pop | """Run test delay. |
505 | 06009e27 | Iustin Pop | |
506 | 06009e27 | Iustin Pop | """ |
507 | 06009e27 | Iustin Pop | duration = params[0] |
508 | 06009e27 | Iustin Pop | return utils.TestDelay(duration) |
509 | 06009e27 | Iustin Pop | |
510 | a5d7fb43 | Manuel Franceschini | @staticmethod |
511 | a5d7fb43 | Manuel Franceschini | def perspective_file_storage_dir_create(params): |
512 | a5d7fb43 | Manuel Franceschini | """Create the file storage directory. |
513 | a5d7fb43 | Manuel Franceschini | |
514 | a5d7fb43 | Manuel Franceschini | """ |
515 | a5d7fb43 | Manuel Franceschini | file_storage_dir = params[0] |
516 | a5d7fb43 | Manuel Franceschini | return backend.CreateFileStorageDir(file_storage_dir) |
517 | a5d7fb43 | Manuel Franceschini | |
518 | a5d7fb43 | Manuel Franceschini | @staticmethod |
519 | a5d7fb43 | Manuel Franceschini | def perspective_file_storage_dir_remove(params): |
520 | a5d7fb43 | Manuel Franceschini | """Remove the file storage directory. |
521 | a5d7fb43 | Manuel Franceschini | |
522 | a5d7fb43 | Manuel Franceschini | """ |
523 | a5d7fb43 | Manuel Franceschini | file_storage_dir = params[0] |
524 | a5d7fb43 | Manuel Franceschini | return backend.RemoveFileStorageDir(file_storage_dir) |
525 | a5d7fb43 | Manuel Franceschini | |
526 | a5d7fb43 | Manuel Franceschini | @staticmethod |
527 | a5d7fb43 | Manuel Franceschini | def perspective_file_storage_dir_rename(params): |
528 | a5d7fb43 | Manuel Franceschini | """Rename the file storage directory. |
529 | a5d7fb43 | Manuel Franceschini | |
530 | a5d7fb43 | Manuel Franceschini | """ |
531 | a5d7fb43 | Manuel Franceschini | old_file_storage_dir = params[0] |
532 | a5d7fb43 | Manuel Franceschini | new_file_storage_dir = params[1] |
533 | a5d7fb43 | Manuel Franceschini | return backend.RenameFileStorageDir(old_file_storage_dir, |
534 | a5d7fb43 | Manuel Franceschini | new_file_storage_dir) |
535 | a5d7fb43 | Manuel Franceschini | |
536 | ca52cdeb | Michael Hanselmann | @staticmethod |
537 | ca52cdeb | Michael Hanselmann | def perspective_jobqueue_update(params): |
538 | ca52cdeb | Michael Hanselmann | """Update job queue. |
539 | ca52cdeb | Michael Hanselmann | |
540 | ca52cdeb | Michael Hanselmann | """ |
541 | ca52cdeb | Michael Hanselmann | (file_name, content) = params |
542 | ca52cdeb | Michael Hanselmann | return backend.JobQueueUpdate(file_name, content) |
543 | ca52cdeb | Michael Hanselmann | |
544 | ca52cdeb | Michael Hanselmann | @staticmethod |
545 | ca52cdeb | Michael Hanselmann | def perspective_jobqueue_purge(params): |
546 | ca52cdeb | Michael Hanselmann | """Purge job queue. |
547 | ca52cdeb | Michael Hanselmann | |
548 | ca52cdeb | Michael Hanselmann | """ |
549 | ca52cdeb | Michael Hanselmann | return backend.JobQueuePurge() |
550 | ca52cdeb | Michael Hanselmann | |
551 | a8083063 | Iustin Pop | |
552 | 1df6506c | Michael Hanselmann | class NodeDaemonHttpServer(http.HTTPServer): |
553 | 1df6506c | Michael Hanselmann | def __init__(self, server_address): |
554 | 1df6506c | Michael Hanselmann | http.HTTPServer.__init__(self, server_address, NodeDaemonRequestHandler) |
555 | 84b58db2 | Michael Hanselmann | self.noded_pid = os.getpid() |
556 | 84b58db2 | Michael Hanselmann | |
557 | 84b58db2 | Michael Hanselmann | def serve_forever(self): |
558 | 84b58db2 | Michael Hanselmann | """Handle requests until told to quit.""" |
559 | 84b58db2 | Michael Hanselmann | sighandler = utils.SignalHandler([signal.SIGINT, signal.SIGTERM]) |
560 | 84b58db2 | Michael Hanselmann | try: |
561 | 84b58db2 | Michael Hanselmann | while not sighandler.called: |
562 | 84b58db2 | Michael Hanselmann | self.handle_request() |
563 | 84b58db2 | Michael Hanselmann | # TODO: There could be children running at this point |
564 | 84b58db2 | Michael Hanselmann | finally: |
565 | 84b58db2 | Michael Hanselmann | sighandler.Reset() |
566 | 1df6506c | Michael Hanselmann | |
567 | 1df6506c | Michael Hanselmann | |
568 | 761ce945 | Guido Trotter | class ForkingHTTPServer(SocketServer.ForkingMixIn, NodeDaemonHttpServer): |
569 | 761ce945 | Guido Trotter | """Forking HTTP Server. |
570 | 761ce945 | Guido Trotter | |
571 | 761ce945 | Guido Trotter | This inherits from ForkingMixIn and HTTPServer in order to fork for each |
572 | 761ce945 | Guido Trotter | request we handle. This allows more requests to be handled concurrently. |
573 | 761ce945 | Guido Trotter | |
574 | 761ce945 | Guido Trotter | """ |
575 | 761ce945 | Guido Trotter | |
576 | 761ce945 | Guido Trotter | |
577 | a8083063 | Iustin Pop | def ParseOptions(): |
578 | a8083063 | Iustin Pop | """Parse the command line options. |
579 | a8083063 | Iustin Pop | |
580 | a8083063 | Iustin Pop | Returns: |
581 | a8083063 | Iustin Pop | (options, args) as from OptionParser.parse_args() |
582 | a8083063 | Iustin Pop | |
583 | a8083063 | Iustin Pop | """ |
584 | a8083063 | Iustin Pop | parser = OptionParser(description="Ganeti node daemon", |
585 | a8083063 | Iustin Pop | usage="%prog [-f] [-d]", |
586 | a8083063 | Iustin Pop | version="%%prog (ganeti) %s" % |
587 | a8083063 | Iustin Pop | constants.RELEASE_VERSION) |
588 | a8083063 | Iustin Pop | |
589 | a8083063 | Iustin Pop | parser.add_option("-f", "--foreground", dest="fork", |
590 | a8083063 | Iustin Pop | help="Don't detach from the current terminal", |
591 | a8083063 | Iustin Pop | default=True, action="store_false") |
592 | a8083063 | Iustin Pop | parser.add_option("-d", "--debug", dest="debug", |
593 | a8083063 | Iustin Pop | help="Enable some debug messages", |
594 | a8083063 | Iustin Pop | default=False, action="store_true") |
595 | a8083063 | Iustin Pop | options, args = parser.parse_args() |
596 | a8083063 | Iustin Pop | return options, args |
597 | a8083063 | Iustin Pop | |
598 | a8083063 | Iustin Pop | |
599 | a8083063 | Iustin Pop | def main(): |
600 | 3ecf6786 | Iustin Pop | """Main function for the node daemon. |
601 | 3ecf6786 | Iustin Pop | |
602 | 3ecf6786 | Iustin Pop | """ |
603 | a8083063 | Iustin Pop | options, args = ParseOptions() |
604 | f362096f | Iustin Pop | utils.debug = options.debug |
605 | a8083063 | Iustin Pop | for fname in (constants.SSL_CERT_FILE,): |
606 | a8083063 | Iustin Pop | if not os.path.isfile(fname): |
607 | a8083063 | Iustin Pop | print "config %s not there, will not run." % fname |
608 | a8083063 | Iustin Pop | sys.exit(5) |
609 | a8083063 | Iustin Pop | |
610 | a8083063 | Iustin Pop | try: |
611 | a8083063 | Iustin Pop | ss = ssconf.SimpleStore() |
612 | a8083063 | Iustin Pop | port = ss.GetNodeDaemonPort() |
613 | a8083063 | Iustin Pop | pwdata = ss.GetNodeDaemonPassword() |
614 | a8083063 | Iustin Pop | except errors.ConfigurationError, err: |
615 | a8083063 | Iustin Pop | print "Cluster configuration incomplete: '%s'" % str(err) |
616 | a8083063 | Iustin Pop | sys.exit(5) |
617 | a8083063 | Iustin Pop | |
618 | 195c7f91 | Iustin Pop | # create the various SUB_RUN_DIRS, if not existing, so that we handle the |
619 | 195c7f91 | Iustin Pop | # situation where RUN_DIR is tmpfs |
620 | 195c7f91 | Iustin Pop | for dir_name in constants.SUB_RUN_DIRS: |
621 | 195c7f91 | Iustin Pop | if not os.path.exists(dir_name): |
622 | 195c7f91 | Iustin Pop | try: |
623 | 195c7f91 | Iustin Pop | os.mkdir(dir_name, 0755) |
624 | 195c7f91 | Iustin Pop | except EnvironmentError, err: |
625 | 195c7f91 | Iustin Pop | if err.errno != errno.EEXIST: |
626 | 195c7f91 | Iustin Pop | print ("Node setup wrong, cannot create directory %s: %s" % |
627 | 195c7f91 | Iustin Pop | (dir_name, err)) |
628 | 195c7f91 | Iustin Pop | sys.exit(5) |
629 | 195c7f91 | Iustin Pop | if not os.path.isdir(dir_name): |
630 | 195c7f91 | Iustin Pop | print ("Node setup wrong, %s is not a directory" % dir_name) |
631 | 195c7f91 | Iustin Pop | sys.exit(5) |
632 | 0214b0c0 | Iustin Pop | |
633 | a8083063 | Iustin Pop | # become a daemon |
634 | a8083063 | Iustin Pop | if options.fork: |
635 | 8f765069 | Iustin Pop | utils.Daemonize(logfile=constants.LOG_NODESERVER) |
636 | a8083063 | Iustin Pop | |
637 | 99e88451 | Iustin Pop | utils.WritePidFile(constants.NODED_PID) |
638 | 73d927a2 | Guido Trotter | |
639 | 59f187eb | Iustin Pop | logger.SetupLogging(logfile=constants.LOG_NODESERVER, debug=options.debug, |
640 | 59f187eb | Iustin Pop | stderr_logging=not options.fork) |
641 | c89189b1 | Iustin Pop | logging.info("ganeti node daemon startup") |
642 | a8083063 | Iustin Pop | |
643 | 761ce945 | Guido Trotter | if options.fork: |
644 | 84b58db2 | Michael Hanselmann | server = ForkingHTTPServer(('', port)) |
645 | 761ce945 | Guido Trotter | else: |
646 | 84b58db2 | Michael Hanselmann | server = NodeDaemonHttpServer(('', port)) |
647 | a8083063 | Iustin Pop | |
648 | 73d927a2 | Guido Trotter | try: |
649 | 73d927a2 | Guido Trotter | server.serve_forever() |
650 | 73d927a2 | Guido Trotter | finally: |
651 | 99e88451 | Iustin Pop | utils.RemovePidFile(constants.NODED_PID) |
652 | 73d927a2 | Guido Trotter | |
653 | a8083063 | Iustin Pop | |
654 | 3ecf6786 | Iustin Pop | if __name__ == '__main__': |
655 | a8083063 | Iustin Pop | main() |