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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 | 81010134 | Iustin Pop | import BaseHTTPServer |
32 | 81010134 | Iustin Pop | import simplejson |
33 | 0214b0c0 | Iustin Pop | import errno |
34 | a8083063 | Iustin Pop | |
35 | a8083063 | Iustin Pop | from optparse import OptionParser |
36 | a8083063 | Iustin Pop | |
37 | a8083063 | Iustin Pop | |
38 | a8083063 | Iustin Pop | from ganeti import backend |
39 | a8083063 | Iustin Pop | from ganeti import logger |
40 | a8083063 | Iustin Pop | from ganeti import constants |
41 | a8083063 | Iustin Pop | from ganeti import objects |
42 | a8083063 | Iustin Pop | from ganeti import errors |
43 | a8083063 | Iustin Pop | from ganeti import ssconf |
44 | 16abfbc2 | Alexander Schreiber | from ganeti import utils |
45 | a8083063 | Iustin Pop | |
46 | a8083063 | Iustin Pop | |
47 | 81010134 | Iustin Pop | class ServerObject(BaseHTTPServer.BaseHTTPRequestHandler): |
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 | 81010134 | Iustin Pop | def do_PUT(self): |
54 | 81010134 | Iustin Pop | """Handle a post request. |
55 | a8083063 | Iustin Pop | |
56 | 098c0958 | Michael Hanselmann | """ |
57 | 81010134 | Iustin Pop | path = self.path |
58 | 81010134 | Iustin Pop | if path.startswith("/"): |
59 | 81010134 | Iustin Pop | path = path[1:] |
60 | 81010134 | Iustin Pop | mname = "perspective_%s" % path |
61 | 81010134 | Iustin Pop | if not hasattr(self, mname): |
62 | 81010134 | Iustin Pop | self.send_error(404) |
63 | 81010134 | Iustin Pop | return False |
64 | 81010134 | Iustin Pop | |
65 | 81010134 | Iustin Pop | method = getattr(self, mname) |
66 | a8083063 | Iustin Pop | try: |
67 | 81010134 | Iustin Pop | body_length = int(self.headers.get('Content-Length', '0')) |
68 | 81010134 | Iustin Pop | except ValueError: |
69 | 81010134 | Iustin Pop | self.send_error(400, 'No Content-Length header or invalid format') |
70 | 81010134 | Iustin Pop | return False |
71 | a8083063 | Iustin Pop | |
72 | 81010134 | Iustin Pop | try: |
73 | 81010134 | Iustin Pop | body = self.rfile.read(body_length) |
74 | 81010134 | Iustin Pop | except socket.error, err: |
75 | 81010134 | Iustin Pop | logger.Error("Socket error while reading: %s" % str(err)) |
76 | 81010134 | Iustin Pop | return |
77 | 81010134 | Iustin Pop | try: |
78 | 81010134 | Iustin Pop | params = simplejson.loads(body) |
79 | 81010134 | Iustin Pop | result = method(params) |
80 | 81010134 | Iustin Pop | payload = simplejson.dumps(result) |
81 | 81010134 | Iustin Pop | except Exception, err: |
82 | 81010134 | Iustin Pop | self.send_error(500, "Error: %s" % str(err)) |
83 | 81010134 | Iustin Pop | return False |
84 | 81010134 | Iustin Pop | self.send_response(200) |
85 | 81010134 | Iustin Pop | self.send_header('Content-Length', str(len(payload))) |
86 | 81010134 | Iustin Pop | self.end_headers() |
87 | 81010134 | Iustin Pop | self.wfile.write(payload) |
88 | 81010134 | Iustin Pop | return True |
89 | 81010134 | Iustin Pop | |
90 | 81010134 | Iustin Pop | def log_message(self, format, *args): |
91 | 81010134 | Iustin Pop | """Log a request to the log. |
92 | 81010134 | Iustin Pop | |
93 | 81010134 | Iustin Pop | This is the same as the parent, we just log somewhere else. |
94 | 81010134 | Iustin Pop | |
95 | 81010134 | Iustin Pop | """ |
96 | 81010134 | Iustin Pop | msg = ("%s - - [%s] %s\n" % |
97 | 81010134 | Iustin Pop | (self.address_string(), |
98 | 81010134 | Iustin Pop | self.log_date_time_string(), |
99 | 81010134 | Iustin Pop | format % args)) |
100 | 81010134 | Iustin Pop | logger.Debug(msg) |
101 | a8083063 | Iustin Pop | |
102 | a8083063 | Iustin Pop | # the new block devices -------------------------- |
103 | a8083063 | Iustin Pop | |
104 | 3ecf6786 | Iustin Pop | @staticmethod |
105 | 3ecf6786 | Iustin Pop | def perspective_blockdev_create(params): |
106 | 3ecf6786 | Iustin Pop | """Create a block device. |
107 | 3ecf6786 | Iustin Pop | |
108 | 3ecf6786 | Iustin Pop | """ |
109 | 3f78eef2 | Iustin Pop | bdev_s, size, owner, on_primary, info = params |
110 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
111 | a8083063 | Iustin Pop | if bdev is None: |
112 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
113 | 3f78eef2 | Iustin Pop | return backend.CreateBlockDevice(bdev, size, owner, on_primary, info) |
114 | a8083063 | Iustin Pop | |
115 | 3ecf6786 | Iustin Pop | @staticmethod |
116 | 3ecf6786 | Iustin Pop | def perspective_blockdev_remove(params): |
117 | 3ecf6786 | Iustin Pop | """Remove a block device. |
118 | 3ecf6786 | Iustin Pop | |
119 | 3ecf6786 | Iustin Pop | """ |
120 | a8083063 | Iustin Pop | bdev_s = params[0] |
121 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
122 | a8083063 | Iustin Pop | return backend.RemoveBlockDevice(bdev) |
123 | a8083063 | Iustin Pop | |
124 | 3ecf6786 | Iustin Pop | @staticmethod |
125 | f3e513ad | Iustin Pop | def perspective_blockdev_rename(params): |
126 | f3e513ad | Iustin Pop | """Remove a block device. |
127 | f3e513ad | Iustin Pop | |
128 | f3e513ad | Iustin Pop | """ |
129 | f3e513ad | Iustin Pop | devlist = [(objects.Disk.FromDict(ds), uid) for ds, uid in params] |
130 | f3e513ad | Iustin Pop | return backend.RenameBlockDevices(devlist) |
131 | f3e513ad | Iustin Pop | |
132 | f3e513ad | Iustin Pop | @staticmethod |
133 | 3ecf6786 | Iustin Pop | def perspective_blockdev_assemble(params): |
134 | 3ecf6786 | Iustin Pop | """Assemble a block device. |
135 | 3ecf6786 | Iustin Pop | |
136 | 3ecf6786 | Iustin Pop | """ |
137 | 3f78eef2 | Iustin Pop | bdev_s, owner, on_primary = params |
138 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
139 | a8083063 | Iustin Pop | if bdev is None: |
140 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
141 | 3f78eef2 | Iustin Pop | return backend.AssembleBlockDevice(bdev, owner, on_primary) |
142 | a8083063 | Iustin Pop | |
143 | 3ecf6786 | Iustin Pop | @staticmethod |
144 | 3ecf6786 | Iustin Pop | def perspective_blockdev_shutdown(params): |
145 | 3ecf6786 | Iustin Pop | """Shutdown a block device. |
146 | 3ecf6786 | Iustin Pop | |
147 | 3ecf6786 | Iustin Pop | """ |
148 | a8083063 | Iustin Pop | bdev_s = params[0] |
149 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
150 | a8083063 | Iustin Pop | if bdev is None: |
151 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
152 | a8083063 | Iustin Pop | return backend.ShutdownBlockDevice(bdev) |
153 | a8083063 | Iustin Pop | |
154 | 3ecf6786 | Iustin Pop | @staticmethod |
155 | 153d9724 | Iustin Pop | def perspective_blockdev_addchildren(params): |
156 | 3ecf6786 | Iustin Pop | """Add a child to a mirror device. |
157 | 3ecf6786 | Iustin Pop | |
158 | 3ecf6786 | Iustin Pop | Note: this is only valid for mirror devices. It's the caller's duty |
159 | 3ecf6786 | Iustin Pop | to send a correct disk, otherwise we raise an error. |
160 | 3ecf6786 | Iustin Pop | |
161 | 3ecf6786 | Iustin Pop | """ |
162 | a8083063 | Iustin Pop | bdev_s, ndev_s = params |
163 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
164 | 153d9724 | Iustin Pop | ndevs = [objects.Disk.FromDict(disk_s) for disk_s in ndev_s] |
165 | 153d9724 | Iustin Pop | if bdev is None or ndevs.count(None) > 0: |
166 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
167 | 153d9724 | Iustin Pop | return backend.MirrorAddChildren(bdev, ndevs) |
168 | a8083063 | Iustin Pop | |
169 | 3ecf6786 | Iustin Pop | @staticmethod |
170 | 153d9724 | Iustin Pop | def perspective_blockdev_removechildren(params): |
171 | 3ecf6786 | Iustin Pop | """Remove a child from a mirror device. |
172 | 3ecf6786 | Iustin Pop | |
173 | 3ecf6786 | Iustin Pop | This is only valid for mirror devices, of course. It's the callers |
174 | 3ecf6786 | Iustin Pop | duty to send a correct disk, otherwise we raise an error. |
175 | 3ecf6786 | Iustin Pop | |
176 | 3ecf6786 | Iustin Pop | """ |
177 | a8083063 | Iustin Pop | bdev_s, ndev_s = params |
178 | 319856a9 | Michael Hanselmann | bdev = objects.Disk.FromDict(bdev_s) |
179 | 153d9724 | Iustin Pop | ndevs = [objects.Disk.FromDict(disk_s) for disk_s in ndev_s] |
180 | 153d9724 | Iustin Pop | if bdev is None or ndevs.count(None) > 0: |
181 | a8083063 | Iustin Pop | raise ValueError("can't unserialize data!") |
182 | 153d9724 | Iustin Pop | return backend.MirrorRemoveChildren(bdev, ndevs) |
183 | a8083063 | Iustin Pop | |
184 | 3ecf6786 | Iustin Pop | @staticmethod |
185 | 3ecf6786 | Iustin Pop | def perspective_blockdev_getmirrorstatus(params): |
186 | 3ecf6786 | Iustin Pop | """Return the mirror status for a list of disks. |
187 | 3ecf6786 | Iustin Pop | |
188 | 3ecf6786 | Iustin Pop | """ |
189 | 319856a9 | Michael Hanselmann | disks = [objects.Disk.FromDict(dsk_s) |
190 | a8083063 | Iustin Pop | for dsk_s in params] |
191 | a8083063 | Iustin Pop | return backend.GetMirrorStatus(disks) |
192 | a8083063 | Iustin Pop | |
193 | 3ecf6786 | Iustin Pop | @staticmethod |
194 | 3ecf6786 | Iustin Pop | def perspective_blockdev_find(params): |
195 | 3ecf6786 | Iustin Pop | """Expose the FindBlockDevice functionality for a disk. |
196 | 3ecf6786 | Iustin Pop | |
197 | 3ecf6786 | Iustin Pop | This will try to find but not activate a disk. |
198 | 3ecf6786 | Iustin Pop | |
199 | 3ecf6786 | Iustin Pop | """ |
200 | 319856a9 | Michael Hanselmann | disk = objects.Disk.FromDict(params[0]) |
201 | a8083063 | Iustin Pop | return backend.FindBlockDevice(disk) |
202 | a8083063 | Iustin Pop | |
203 | 3ecf6786 | Iustin Pop | @staticmethod |
204 | 3ecf6786 | Iustin Pop | def perspective_blockdev_snapshot(params): |
205 | 3ecf6786 | Iustin Pop | """Create a snapshot device. |
206 | 3ecf6786 | Iustin Pop | |
207 | 3ecf6786 | Iustin Pop | Note that this is only valid for LVM disks, if we get passed |
208 | 3ecf6786 | Iustin Pop | something else we raise an exception. The snapshot device can be |
209 | 3ecf6786 | Iustin Pop | remove by calling the generic block device remove call. |
210 | 3ecf6786 | Iustin Pop | |
211 | 3ecf6786 | Iustin Pop | """ |
212 | 319856a9 | Michael Hanselmann | cfbd = objects.Disk.FromDict(params[0]) |
213 | a8083063 | Iustin Pop | return backend.SnapshotBlockDevice(cfbd) |
214 | a8083063 | Iustin Pop | |
215 | a8083063 | Iustin Pop | # export/import -------------------------- |
216 | a8083063 | Iustin Pop | |
217 | 3ecf6786 | Iustin Pop | @staticmethod |
218 | 3ecf6786 | Iustin Pop | def perspective_snapshot_export(params): |
219 | 3ecf6786 | Iustin Pop | """Export a given snapshot. |
220 | 3ecf6786 | Iustin Pop | |
221 | 3ecf6786 | Iustin Pop | """ |
222 | 319856a9 | Michael Hanselmann | disk = objects.Disk.FromDict(params[0]) |
223 | a8083063 | Iustin Pop | dest_node = params[1] |
224 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[2]) |
225 | 3ecf6786 | Iustin Pop | return backend.ExportSnapshot(disk, dest_node, instance) |
226 | 3ecf6786 | Iustin Pop | |
227 | 3ecf6786 | Iustin Pop | @staticmethod |
228 | 3ecf6786 | Iustin Pop | def perspective_finalize_export(params): |
229 | 3ecf6786 | Iustin Pop | """Expose the finalize export functionality. |
230 | a8083063 | Iustin Pop | |
231 | 3ecf6786 | Iustin Pop | """ |
232 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[0]) |
233 | 319856a9 | Michael Hanselmann | snap_disks = [objects.Disk.FromDict(str_data) |
234 | a8083063 | Iustin Pop | for str_data in params[1]] |
235 | a8083063 | Iustin Pop | return backend.FinalizeExport(instance, snap_disks) |
236 | a8083063 | Iustin Pop | |
237 | 3ecf6786 | Iustin Pop | @staticmethod |
238 | 3ecf6786 | Iustin Pop | def perspective_export_info(params): |
239 | 3ecf6786 | Iustin Pop | """Query information about an existing export on this node. |
240 | 3ecf6786 | Iustin Pop | |
241 | 3ecf6786 | Iustin Pop | The given path may not contain an export, in which case we return |
242 | 3ecf6786 | Iustin Pop | None. |
243 | 3ecf6786 | Iustin Pop | |
244 | 3ecf6786 | Iustin Pop | """ |
245 | 3ecf6786 | Iustin Pop | path = params[0] |
246 | 3ecf6786 | Iustin Pop | einfo = backend.ExportInfo(path) |
247 | a8083063 | Iustin Pop | if einfo is None: |
248 | a8083063 | Iustin Pop | return einfo |
249 | a8083063 | Iustin Pop | return einfo.Dumps() |
250 | a8083063 | Iustin Pop | |
251 | 3ecf6786 | Iustin Pop | @staticmethod |
252 | 3ecf6786 | Iustin Pop | def perspective_export_list(params): |
253 | 3ecf6786 | Iustin Pop | """List the available exports on this node. |
254 | 3ecf6786 | Iustin Pop | |
255 | 3ecf6786 | Iustin Pop | Note that as opposed to export_info, which may query data about an |
256 | 3ecf6786 | Iustin Pop | export in any path, this only queries the standard Ganeti path |
257 | 3ecf6786 | Iustin Pop | (constants.EXPORT_DIR). |
258 | 3ecf6786 | Iustin Pop | |
259 | 3ecf6786 | Iustin Pop | """ |
260 | a8083063 | Iustin Pop | return backend.ListExports() |
261 | a8083063 | Iustin Pop | |
262 | 3ecf6786 | Iustin Pop | @staticmethod |
263 | 3ecf6786 | Iustin Pop | def perspective_export_remove(params): |
264 | 3ecf6786 | Iustin Pop | """Remove an export. |
265 | 3ecf6786 | Iustin Pop | |
266 | 3ecf6786 | Iustin Pop | """ |
267 | a8083063 | Iustin Pop | export = params[0] |
268 | a8083063 | Iustin Pop | return backend.RemoveExport(export) |
269 | a8083063 | Iustin Pop | |
270 | a8083063 | Iustin Pop | # volume -------------------------- |
271 | a8083063 | Iustin Pop | |
272 | 3ecf6786 | Iustin Pop | @staticmethod |
273 | 3ecf6786 | Iustin Pop | def perspective_volume_list(params): |
274 | 3ecf6786 | Iustin Pop | """Query the list of logical volumes in a given volume group. |
275 | 3ecf6786 | Iustin Pop | |
276 | 3ecf6786 | Iustin Pop | """ |
277 | a8083063 | Iustin Pop | vgname = params[0] |
278 | a8083063 | Iustin Pop | return backend.GetVolumeList(vgname) |
279 | a8083063 | Iustin Pop | |
280 | 3ecf6786 | Iustin Pop | @staticmethod |
281 | 3ecf6786 | Iustin Pop | def perspective_vg_list(params): |
282 | 3ecf6786 | Iustin Pop | """Query the list of volume groups. |
283 | 3ecf6786 | Iustin Pop | |
284 | 3ecf6786 | Iustin Pop | """ |
285 | a8083063 | Iustin Pop | return backend.ListVolumeGroups() |
286 | a8083063 | Iustin Pop | |
287 | a8083063 | Iustin Pop | # bridge -------------------------- |
288 | a8083063 | Iustin Pop | |
289 | 3ecf6786 | Iustin Pop | @staticmethod |
290 | 3ecf6786 | Iustin Pop | def perspective_bridges_exist(params): |
291 | 3ecf6786 | Iustin Pop | """Check if all bridges given exist on this node. |
292 | 3ecf6786 | Iustin Pop | |
293 | 3ecf6786 | Iustin Pop | """ |
294 | a8083063 | Iustin Pop | bridges_list = params[0] |
295 | a8083063 | Iustin Pop | return backend.BridgesExist(bridges_list) |
296 | a8083063 | Iustin Pop | |
297 | a8083063 | Iustin Pop | # instance -------------------------- |
298 | a8083063 | Iustin Pop | |
299 | 3ecf6786 | Iustin Pop | @staticmethod |
300 | 3ecf6786 | Iustin Pop | def perspective_instance_os_add(params): |
301 | 3ecf6786 | Iustin Pop | """Install an OS on a given instance. |
302 | 3ecf6786 | Iustin Pop | |
303 | 3ecf6786 | Iustin Pop | """ |
304 | a8083063 | Iustin Pop | inst_s, os_disk, swap_disk = params |
305 | 319856a9 | Michael Hanselmann | inst = objects.Instance.FromDict(inst_s) |
306 | a8083063 | Iustin Pop | return backend.AddOSToInstance(inst, os_disk, swap_disk) |
307 | a8083063 | Iustin Pop | |
308 | 3ecf6786 | Iustin Pop | @staticmethod |
309 | decd5f45 | Iustin Pop | def perspective_instance_run_rename(params): |
310 | decd5f45 | Iustin Pop | """Runs the OS rename script for an instance. |
311 | decd5f45 | Iustin Pop | |
312 | decd5f45 | Iustin Pop | """ |
313 | decd5f45 | Iustin Pop | inst_s, old_name, os_disk, swap_disk = params |
314 | 319856a9 | Michael Hanselmann | inst = objects.Instance.FromDict(inst_s) |
315 | decd5f45 | Iustin Pop | return backend.RunRenameInstance(inst, old_name, os_disk, swap_disk) |
316 | decd5f45 | Iustin Pop | |
317 | decd5f45 | Iustin Pop | @staticmethod |
318 | 3ecf6786 | Iustin Pop | def perspective_instance_os_import(params): |
319 | 3ecf6786 | Iustin Pop | """Run the import function of an OS onto a given instance. |
320 | 3ecf6786 | Iustin Pop | |
321 | 3ecf6786 | Iustin Pop | """ |
322 | a8083063 | Iustin Pop | inst_s, os_disk, swap_disk, src_node, src_image = params |
323 | 319856a9 | Michael Hanselmann | inst = objects.Instance.FromDict(inst_s) |
324 | a8083063 | Iustin Pop | return backend.ImportOSIntoInstance(inst, os_disk, swap_disk, |
325 | a8083063 | Iustin Pop | src_node, src_image) |
326 | a8083063 | Iustin Pop | |
327 | 3ecf6786 | Iustin Pop | @staticmethod |
328 | 3ecf6786 | Iustin Pop | def perspective_instance_shutdown(params): |
329 | 3ecf6786 | Iustin Pop | """Shutdown an instance. |
330 | 3ecf6786 | Iustin Pop | |
331 | 3ecf6786 | Iustin Pop | """ |
332 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[0]) |
333 | a8083063 | Iustin Pop | return backend.ShutdownInstance(instance) |
334 | a8083063 | Iustin Pop | |
335 | 3ecf6786 | Iustin Pop | @staticmethod |
336 | 3ecf6786 | Iustin Pop | def perspective_instance_start(params): |
337 | 3ecf6786 | Iustin Pop | """Start an instance. |
338 | 3ecf6786 | Iustin Pop | |
339 | 3ecf6786 | Iustin Pop | """ |
340 | 319856a9 | Michael Hanselmann | instance = objects.Instance.FromDict(params[0]) |
341 | a8083063 | Iustin Pop | extra_args = params[1] |
342 | a8083063 | Iustin Pop | return backend.StartInstance(instance, extra_args) |
343 | a8083063 | Iustin Pop | |
344 | 3ecf6786 | Iustin Pop | @staticmethod |
345 | 007a2f3e | Alexander Schreiber | def perspective_instance_reboot(params): |
346 | 007a2f3e | Alexander Schreiber | """Reboot an instance. |
347 | 007a2f3e | Alexander Schreiber | |
348 | 007a2f3e | Alexander Schreiber | """ |
349 | 007a2f3e | Alexander Schreiber | instance = objects.Instance.FromDict(params[0]) |
350 | 007a2f3e | Alexander Schreiber | reboot_type = params[1] |
351 | 007a2f3e | Alexander Schreiber | extra_args = params[2] |
352 | 007a2f3e | Alexander Schreiber | return backend.RebootInstance(instance, reboot_type, extra_args) |
353 | 007a2f3e | Alexander Schreiber | |
354 | 007a2f3e | Alexander Schreiber | @staticmethod |
355 | 3ecf6786 | Iustin Pop | def perspective_instance_info(params): |
356 | 3ecf6786 | Iustin Pop | """Query instance information. |
357 | 3ecf6786 | Iustin Pop | |
358 | 3ecf6786 | Iustin Pop | """ |
359 | a8083063 | Iustin Pop | return backend.GetInstanceInfo(params[0]) |
360 | a8083063 | Iustin Pop | |
361 | 3ecf6786 | Iustin Pop | @staticmethod |
362 | 3ecf6786 | Iustin Pop | def perspective_all_instances_info(params): |
363 | 3ecf6786 | Iustin Pop | """Query information about all instances. |
364 | 3ecf6786 | Iustin Pop | |
365 | 3ecf6786 | Iustin Pop | """ |
366 | a8083063 | Iustin Pop | return backend.GetAllInstancesInfo() |
367 | a8083063 | Iustin Pop | |
368 | 3ecf6786 | Iustin Pop | @staticmethod |
369 | 3ecf6786 | Iustin Pop | def perspective_instance_list(params): |
370 | 3ecf6786 | Iustin Pop | """Query the list of running instances. |
371 | 3ecf6786 | Iustin Pop | |
372 | 3ecf6786 | Iustin Pop | """ |
373 | a8083063 | Iustin Pop | return backend.GetInstanceList() |
374 | a8083063 | Iustin Pop | |
375 | a8083063 | Iustin Pop | # node -------------------------- |
376 | a8083063 | Iustin Pop | |
377 | 3ecf6786 | Iustin Pop | @staticmethod |
378 | 16abfbc2 | Alexander Schreiber | def perspective_node_tcp_ping(params): |
379 | 16abfbc2 | Alexander Schreiber | """Do a TcpPing on the remote node. |
380 | 16abfbc2 | Alexander Schreiber | |
381 | 16abfbc2 | Alexander Schreiber | """ |
382 | b15d625f | Iustin Pop | return utils.TcpPing(params[1], params[2], timeout=params[3], |
383 | b15d625f | Iustin Pop | live_port_needed=params[4], source=params[0]) |
384 | 16abfbc2 | Alexander Schreiber | |
385 | 16abfbc2 | Alexander Schreiber | @staticmethod |
386 | 3ecf6786 | Iustin Pop | def perspective_node_info(params): |
387 | 3ecf6786 | Iustin Pop | """Query node information. |
388 | 3ecf6786 | Iustin Pop | |
389 | 3ecf6786 | Iustin Pop | """ |
390 | a8083063 | Iustin Pop | vgname = params[0] |
391 | a8083063 | Iustin Pop | return backend.GetNodeInfo(vgname) |
392 | a8083063 | Iustin Pop | |
393 | 3ecf6786 | Iustin Pop | @staticmethod |
394 | 3ecf6786 | Iustin Pop | def perspective_node_add(params): |
395 | 3ecf6786 | Iustin Pop | """Complete the registration of this node in the cluster. |
396 | 3ecf6786 | Iustin Pop | |
397 | 3ecf6786 | Iustin Pop | """ |
398 | a8083063 | Iustin Pop | return backend.AddNode(params[0], params[1], params[2], |
399 | a8083063 | Iustin Pop | params[3], params[4], params[5]) |
400 | a8083063 | Iustin Pop | |
401 | 3ecf6786 | Iustin Pop | @staticmethod |
402 | 3ecf6786 | Iustin Pop | def perspective_node_verify(params): |
403 | 3ecf6786 | Iustin Pop | """Run a verify sequence on this node. |
404 | 3ecf6786 | Iustin Pop | |
405 | 3ecf6786 | Iustin Pop | """ |
406 | a8083063 | Iustin Pop | return backend.VerifyNode(params[0]) |
407 | a8083063 | Iustin Pop | |
408 | 3ecf6786 | Iustin Pop | @staticmethod |
409 | 3ecf6786 | Iustin Pop | def perspective_node_start_master(params): |
410 | 3ecf6786 | Iustin Pop | """Promote this node to master status. |
411 | 3ecf6786 | Iustin Pop | |
412 | 3ecf6786 | Iustin Pop | """ |
413 | a8083063 | Iustin Pop | return backend.StartMaster() |
414 | a8083063 | Iustin Pop | |
415 | 3ecf6786 | Iustin Pop | @staticmethod |
416 | 3ecf6786 | Iustin Pop | def perspective_node_stop_master(params): |
417 | 3ecf6786 | Iustin Pop | """Demote this node from master status. |
418 | 3ecf6786 | Iustin Pop | |
419 | 3ecf6786 | Iustin Pop | """ |
420 | a8083063 | Iustin Pop | return backend.StopMaster() |
421 | a8083063 | Iustin Pop | |
422 | 3ecf6786 | Iustin Pop | @staticmethod |
423 | 3ecf6786 | Iustin Pop | def perspective_node_leave_cluster(params): |
424 | 3ecf6786 | Iustin Pop | """Cleanup after leaving a cluster. |
425 | 3ecf6786 | Iustin Pop | |
426 | 3ecf6786 | Iustin Pop | """ |
427 | a8083063 | Iustin Pop | return backend.LeaveCluster() |
428 | a8083063 | Iustin Pop | |
429 | 3ecf6786 | Iustin Pop | @staticmethod |
430 | 3ecf6786 | Iustin Pop | def perspective_node_volumes(params): |
431 | 3ecf6786 | Iustin Pop | """Query the list of all logical volume groups. |
432 | 3ecf6786 | Iustin Pop | |
433 | 3ecf6786 | Iustin Pop | """ |
434 | dcb93971 | Michael Hanselmann | return backend.NodeVolumes() |
435 | dcb93971 | Michael Hanselmann | |
436 | a8083063 | Iustin Pop | # cluster -------------------------- |
437 | a8083063 | Iustin Pop | |
438 | 3ecf6786 | Iustin Pop | @staticmethod |
439 | 3ecf6786 | Iustin Pop | def perspective_version(params): |
440 | 3ecf6786 | Iustin Pop | """Query version information. |
441 | 3ecf6786 | Iustin Pop | |
442 | 3ecf6786 | Iustin Pop | """ |
443 | a8083063 | Iustin Pop | return constants.PROTOCOL_VERSION |
444 | a8083063 | Iustin Pop | |
445 | 3ecf6786 | Iustin Pop | @staticmethod |
446 | 3ecf6786 | Iustin Pop | def perspective_upload_file(params): |
447 | 3ecf6786 | Iustin Pop | """Upload a file. |
448 | 3ecf6786 | Iustin Pop | |
449 | 3ecf6786 | Iustin Pop | Note that the backend implementation imposes strict rules on which |
450 | 3ecf6786 | Iustin Pop | files are accepted. |
451 | 3ecf6786 | Iustin Pop | |
452 | 3ecf6786 | Iustin Pop | """ |
453 | a8083063 | Iustin Pop | return backend.UploadFile(*params) |
454 | a8083063 | Iustin Pop | |
455 | a8083063 | Iustin Pop | |
456 | a8083063 | Iustin Pop | # os ----------------------- |
457 | a8083063 | Iustin Pop | |
458 | 3ecf6786 | Iustin Pop | @staticmethod |
459 | 3ecf6786 | Iustin Pop | def perspective_os_diagnose(params): |
460 | 3ecf6786 | Iustin Pop | """Query detailed information about existing OSes. |
461 | 3ecf6786 | Iustin Pop | |
462 | 3ecf6786 | Iustin Pop | """ |
463 | 4e679f11 | Guido Trotter | return [os.ToDict() for os in backend.DiagnoseOS()] |
464 | a8083063 | Iustin Pop | |
465 | 3ecf6786 | Iustin Pop | @staticmethod |
466 | 3ecf6786 | Iustin Pop | def perspective_os_get(params): |
467 | 3ecf6786 | Iustin Pop | """Query information about a given OS. |
468 | 3ecf6786 | Iustin Pop | |
469 | 3ecf6786 | Iustin Pop | """ |
470 | a8083063 | Iustin Pop | name = params[0] |
471 | a8083063 | Iustin Pop | try: |
472 | dfa96ded | Guido Trotter | os_obj = backend.OSFromDisk(name) |
473 | a8083063 | Iustin Pop | except errors.InvalidOS, err: |
474 | dfa96ded | Guido Trotter | os_obj = objects.OS.FromInvalidOS(err) |
475 | dfa96ded | Guido Trotter | return os_obj.ToDict() |
476 | a8083063 | Iustin Pop | |
477 | a8083063 | Iustin Pop | # hooks ----------------------- |
478 | a8083063 | Iustin Pop | |
479 | 3ecf6786 | Iustin Pop | @staticmethod |
480 | 3ecf6786 | Iustin Pop | def perspective_hooks_runner(params): |
481 | 3ecf6786 | Iustin Pop | """Run hook scripts. |
482 | 3ecf6786 | Iustin Pop | |
483 | 3ecf6786 | Iustin Pop | """ |
484 | a8083063 | Iustin Pop | hpath, phase, env = params |
485 | a8083063 | Iustin Pop | hr = backend.HooksRunner() |
486 | a8083063 | Iustin Pop | return hr.RunHooks(hpath, phase, env) |
487 | a8083063 | Iustin Pop | |
488 | 06009e27 | Iustin Pop | # test ----------------------- |
489 | 06009e27 | Iustin Pop | |
490 | 06009e27 | Iustin Pop | @staticmethod |
491 | 06009e27 | Iustin Pop | def perspective_test_delay(params): |
492 | 06009e27 | Iustin Pop | """Run test delay. |
493 | 06009e27 | Iustin Pop | |
494 | 06009e27 | Iustin Pop | """ |
495 | 06009e27 | Iustin Pop | duration = params[0] |
496 | 06009e27 | Iustin Pop | return utils.TestDelay(duration) |
497 | 06009e27 | Iustin Pop | |
498 | a8083063 | Iustin Pop | |
499 | a8083063 | Iustin Pop | def ParseOptions(): |
500 | a8083063 | Iustin Pop | """Parse the command line options. |
501 | a8083063 | Iustin Pop | |
502 | a8083063 | Iustin Pop | Returns: |
503 | a8083063 | Iustin Pop | (options, args) as from OptionParser.parse_args() |
504 | a8083063 | Iustin Pop | |
505 | a8083063 | Iustin Pop | """ |
506 | a8083063 | Iustin Pop | parser = OptionParser(description="Ganeti node daemon", |
507 | a8083063 | Iustin Pop | usage="%prog [-f] [-d]", |
508 | a8083063 | Iustin Pop | version="%%prog (ganeti) %s" % |
509 | a8083063 | Iustin Pop | constants.RELEASE_VERSION) |
510 | a8083063 | Iustin Pop | |
511 | a8083063 | Iustin Pop | parser.add_option("-f", "--foreground", dest="fork", |
512 | a8083063 | Iustin Pop | help="Don't detach from the current terminal", |
513 | a8083063 | Iustin Pop | default=True, action="store_false") |
514 | a8083063 | Iustin Pop | parser.add_option("-d", "--debug", dest="debug", |
515 | a8083063 | Iustin Pop | help="Enable some debug messages", |
516 | a8083063 | Iustin Pop | default=False, action="store_true") |
517 | a8083063 | Iustin Pop | options, args = parser.parse_args() |
518 | a8083063 | Iustin Pop | return options, args |
519 | a8083063 | Iustin Pop | |
520 | a8083063 | Iustin Pop | |
521 | a8083063 | Iustin Pop | def main(): |
522 | 3ecf6786 | Iustin Pop | """Main function for the node daemon. |
523 | 3ecf6786 | Iustin Pop | |
524 | 3ecf6786 | Iustin Pop | """ |
525 | a8083063 | Iustin Pop | options, args = ParseOptions() |
526 | f362096f | Iustin Pop | utils.debug = options.debug |
527 | a8083063 | Iustin Pop | for fname in (constants.SSL_CERT_FILE,): |
528 | a8083063 | Iustin Pop | if not os.path.isfile(fname): |
529 | a8083063 | Iustin Pop | print "config %s not there, will not run." % fname |
530 | a8083063 | Iustin Pop | sys.exit(5) |
531 | a8083063 | Iustin Pop | |
532 | a8083063 | Iustin Pop | try: |
533 | a8083063 | Iustin Pop | ss = ssconf.SimpleStore() |
534 | a8083063 | Iustin Pop | port = ss.GetNodeDaemonPort() |
535 | a8083063 | Iustin Pop | pwdata = ss.GetNodeDaemonPassword() |
536 | a8083063 | Iustin Pop | except errors.ConfigurationError, err: |
537 | a8083063 | Iustin Pop | print "Cluster configuration incomplete: '%s'" % str(err) |
538 | a8083063 | Iustin Pop | sys.exit(5) |
539 | a8083063 | Iustin Pop | |
540 | 0214b0c0 | Iustin Pop | # create /var/run/ganeti if not existing, in order to take care of |
541 | 0214b0c0 | Iustin Pop | # tmpfs /var/run |
542 | 0214b0c0 | Iustin Pop | if not os.path.exists(constants.BDEV_CACHE_DIR): |
543 | 0214b0c0 | Iustin Pop | try: |
544 | 0214b0c0 | Iustin Pop | os.mkdir(constants.BDEV_CACHE_DIR, 0755) |
545 | 0214b0c0 | Iustin Pop | except EnvironmentError, err: |
546 | 0214b0c0 | Iustin Pop | if err.errno != errno.EEXIST: |
547 | 0214b0c0 | Iustin Pop | print ("Node setup wrong, cannot create directory %s: %s" % |
548 | 0214b0c0 | Iustin Pop | (constants.BDEV_CACHE_DIR, err)) |
549 | 0214b0c0 | Iustin Pop | sys.exit(5) |
550 | 0214b0c0 | Iustin Pop | if not os.path.isdir(constants.BDEV_CACHE_DIR): |
551 | 0214b0c0 | Iustin Pop | print ("Node setup wrong, %s is not a directory" % |
552 | 0214b0c0 | Iustin Pop | constants.BDEV_CACHE_DIR) |
553 | 0214b0c0 | Iustin Pop | sys.exit(5) |
554 | 0214b0c0 | Iustin Pop | |
555 | a8083063 | Iustin Pop | # become a daemon |
556 | a8083063 | Iustin Pop | if options.fork: |
557 | a8083063 | Iustin Pop | createDaemon() |
558 | a8083063 | Iustin Pop | |
559 | a8083063 | Iustin Pop | logger.SetupLogging(twisted_workaround=True, debug=options.debug, |
560 | a8083063 | Iustin Pop | program="ganeti-noded") |
561 | a8083063 | Iustin Pop | |
562 | 81010134 | Iustin Pop | httpd = BaseHTTPServer.HTTPServer(('', port), ServerObject) |
563 | 81010134 | Iustin Pop | httpd.serve_forever() |
564 | a8083063 | Iustin Pop | |
565 | a8083063 | Iustin Pop | |
566 | a8083063 | Iustin Pop | def createDaemon(): |
567 | a8083063 | Iustin Pop | """Detach a process from the controlling terminal and run it in the |
568 | a8083063 | Iustin Pop | background as a daemon. |
569 | 098c0958 | Michael Hanselmann | |
570 | a8083063 | Iustin Pop | """ |
571 | a8083063 | Iustin Pop | UMASK = 077 |
572 | a8083063 | Iustin Pop | WORKDIR = "/" |
573 | a8083063 | Iustin Pop | # Default maximum for the number of available file descriptors. |
574 | a8083063 | Iustin Pop | if 'SC_OPEN_MAX' in os.sysconf_names: |
575 | a8083063 | Iustin Pop | try: |
576 | a8083063 | Iustin Pop | MAXFD = os.sysconf('SC_OPEN_MAX') |
577 | a8083063 | Iustin Pop | if MAXFD < 0: |
578 | a8083063 | Iustin Pop | MAXFD = 1024 |
579 | a8083063 | Iustin Pop | except OSError: |
580 | a8083063 | Iustin Pop | MAXFD = 1024 |
581 | a8083063 | Iustin Pop | else: |
582 | a8083063 | Iustin Pop | MAXFD = 1024 |
583 | a8083063 | Iustin Pop | # The standard I/O file descriptors are redirected to /dev/null by default. |
584 | a8083063 | Iustin Pop | #REDIRECT_TO = getattr(os, "devnull", "/dev/null") |
585 | a8083063 | Iustin Pop | REDIRECT_TO = constants.LOG_NODESERVER |
586 | a8083063 | Iustin Pop | try: |
587 | a8083063 | Iustin Pop | pid = os.fork() |
588 | a8083063 | Iustin Pop | except OSError, e: |
589 | 3ecf6786 | Iustin Pop | raise Exception("%s [%d]" % (e.strerror, e.errno)) |
590 | 3c9a0742 | Michael Hanselmann | if (pid == 0): # The first child. |
591 | a8083063 | Iustin Pop | os.setsid() |
592 | a8083063 | Iustin Pop | try: |
593 | 3c9a0742 | Michael Hanselmann | pid = os.fork() # Fork a second child. |
594 | a8083063 | Iustin Pop | except OSError, e: |
595 | 3ecf6786 | Iustin Pop | raise Exception("%s [%d]" % (e.strerror, e.errno)) |
596 | 3c9a0742 | Michael Hanselmann | if (pid == 0): # The second child. |
597 | a8083063 | Iustin Pop | os.chdir(WORKDIR) |
598 | a8083063 | Iustin Pop | os.umask(UMASK) |
599 | a8083063 | Iustin Pop | else: |
600 | a8083063 | Iustin Pop | # exit() or _exit()? See below. |
601 | 3c9a0742 | Michael Hanselmann | os._exit(0) # Exit parent (the first child) of the second child. |
602 | a8083063 | Iustin Pop | else: |
603 | 3c9a0742 | Michael Hanselmann | os._exit(0) # Exit parent of the first child. |
604 | a8083063 | Iustin Pop | maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1] |
605 | a8083063 | Iustin Pop | if (maxfd == resource.RLIM_INFINITY): |
606 | a8083063 | Iustin Pop | maxfd = MAXFD |
607 | a8083063 | Iustin Pop | |
608 | a8083063 | Iustin Pop | # Iterate through and close all file descriptors. |
609 | a8083063 | Iustin Pop | for fd in range(0, maxfd): |
610 | a8083063 | Iustin Pop | try: |
611 | a8083063 | Iustin Pop | os.close(fd) |
612 | 3c9a0742 | Michael Hanselmann | except OSError: # ERROR, fd wasn't open to begin with (ignored) |
613 | a8083063 | Iustin Pop | pass |
614 | b50f022f | Iustin Pop | os.open(REDIRECT_TO, os.O_RDWR|os.O_CREAT|os.O_APPEND, 0600) |
615 | a8083063 | Iustin Pop | # Duplicate standard input to standard output and standard error. |
616 | 3c9a0742 | Michael Hanselmann | os.dup2(0, 1) # standard output (1) |
617 | 3c9a0742 | Michael Hanselmann | os.dup2(0, 2) # standard error (2) |
618 | a8083063 | Iustin Pop | return(0) |
619 | a8083063 | Iustin Pop | |
620 | a8083063 | Iustin Pop | |
621 | 3ecf6786 | Iustin Pop | if __name__ == '__main__': |
622 | a8083063 | Iustin Pop | main() |