root / lib / rpc.py @ 26ba2bd8
History | View | Annotate | Download (23.4 kB)
1 |
#
|
---|---|
2 |
#
|
3 |
|
4 |
# Copyright (C) 2006, 2007 Google Inc.
|
5 |
#
|
6 |
# This program is free software; you can redistribute it and/or modify
|
7 |
# it under the terms of the GNU General Public License as published by
|
8 |
# the Free Software Foundation; either version 2 of the License, or
|
9 |
# (at your option) any later version.
|
10 |
#
|
11 |
# This program is distributed in the hope that it will be useful, but
|
12 |
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 |
# General Public License for more details.
|
15 |
#
|
16 |
# You should have received a copy of the GNU General Public License
|
17 |
# along with this program; if not, write to the Free Software
|
18 |
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 |
# 02110-1301, USA.
|
20 |
|
21 |
|
22 |
"""Script to show add a new node to the cluster
|
23 |
|
24 |
"""
|
25 |
|
26 |
# pylint: disable-msg=C0103,R0201,R0904
|
27 |
# C0103: Invalid name, since call_ are not valid
|
28 |
# R0201: Method could be a function, we keep all rpcs instance methods
|
29 |
# as not to change them back and forth between static/instance methods
|
30 |
# if they need to start using instance attributes
|
31 |
# R0904: Too many public methods
|
32 |
|
33 |
import os |
34 |
import socket |
35 |
import httplib |
36 |
|
37 |
import simplejson |
38 |
|
39 |
from ganeti import logger |
40 |
from ganeti import utils |
41 |
from ganeti import objects |
42 |
|
43 |
|
44 |
class NodeController: |
45 |
"""Node-handling class.
|
46 |
|
47 |
For each node that we speak with, we create an instance of this
|
48 |
class, so that we have a safe place to store the details of this
|
49 |
individual call.
|
50 |
|
51 |
"""
|
52 |
def __init__(self, parent, node): |
53 |
self.parent = parent
|
54 |
self.node = node
|
55 |
self.failed = False |
56 |
|
57 |
self.http_conn = hc = httplib.HTTPConnection(node, self.parent.port) |
58 |
try:
|
59 |
hc.connect() |
60 |
hc.putrequest('PUT', "/%s" % self.parent.procedure, |
61 |
skip_accept_encoding=True)
|
62 |
hc.putheader('Content-Length', str(len(parent.body))) |
63 |
hc.endheaders() |
64 |
hc.send(parent.body) |
65 |
except socket.error, err:
|
66 |
logger.Error("Error connecting to %s: %s" % (node, str(err))) |
67 |
self.failed = True |
68 |
|
69 |
def get_response(self): |
70 |
"""Try to process the response from the node.
|
71 |
|
72 |
"""
|
73 |
if self.failed: |
74 |
# we already failed in connect
|
75 |
return False |
76 |
resp = self.http_conn.getresponse()
|
77 |
if resp.status != 200: |
78 |
return False |
79 |
try:
|
80 |
length = int(resp.getheader('Content-Length', '0')) |
81 |
except ValueError: |
82 |
return False |
83 |
if not length: |
84 |
logger.Error("Zero-length reply from %s" % self.node) |
85 |
return False |
86 |
payload = resp.read(length) |
87 |
unload = simplejson.loads(payload) |
88 |
return unload
|
89 |
|
90 |
|
91 |
class Client: |
92 |
"""RPC Client class.
|
93 |
|
94 |
This class, given a (remote) method name, a list of parameters and a
|
95 |
list of nodes, will contact (in parallel) all nodes, and return a
|
96 |
dict of results (key: node name, value: result).
|
97 |
|
98 |
One current bug is that generic failure is still signalled by
|
99 |
'False' result, which is not good. This overloading of values can
|
100 |
cause bugs.
|
101 |
|
102 |
"""
|
103 |
result_set = False
|
104 |
result = False
|
105 |
allresult = [] |
106 |
|
107 |
def __init__(self, procedure, args): |
108 |
self.port = utils.GetNodeDaemonPort()
|
109 |
self.nodepw = utils.GetNodeDaemonPassword()
|
110 |
self.nc = {}
|
111 |
self.results = {}
|
112 |
self.procedure = procedure
|
113 |
self.args = args
|
114 |
self.body = simplejson.dumps(args)
|
115 |
|
116 |
#--- generic connector -------------
|
117 |
|
118 |
def connect_list(self, node_list): |
119 |
"""Add a list of nodes to the target nodes.
|
120 |
|
121 |
"""
|
122 |
for node in node_list: |
123 |
self.connect(node)
|
124 |
|
125 |
def connect(self, connect_node): |
126 |
"""Add a node to the target list.
|
127 |
|
128 |
"""
|
129 |
self.nc[connect_node] = nc = NodeController(self, connect_node) |
130 |
|
131 |
def getresult(self): |
132 |
"""Return the results of the call.
|
133 |
|
134 |
"""
|
135 |
return self.results |
136 |
|
137 |
def run(self): |
138 |
"""Wrapper over reactor.run().
|
139 |
|
140 |
This function simply calls reactor.run() if we have any requests
|
141 |
queued, otherwise it does nothing.
|
142 |
|
143 |
"""
|
144 |
for node, nc in self.nc.items(): |
145 |
self.results[node] = nc.get_response()
|
146 |
|
147 |
|
148 |
class RpcRunner(object): |
149 |
"""RPC runner class"""
|
150 |
|
151 |
def __init__(self, cfg): |
152 |
"""Initialized the rpc runner.
|
153 |
|
154 |
@type cfg: C{config.ConfigWriter}
|
155 |
@param cfg: the configuration object that will be used to get data
|
156 |
about the cluster
|
157 |
|
158 |
"""
|
159 |
self._cfg = cfg
|
160 |
|
161 |
def _InstDict(self, instance): |
162 |
"""Convert the given instance to a dict.
|
163 |
|
164 |
This is done via the instance's ToDict() method and additionally
|
165 |
we fill the hvparams with the cluster defaults.
|
166 |
|
167 |
@type instance: L{objects.Instance}
|
168 |
@param instance: an Instance object
|
169 |
@rtype: dict
|
170 |
@return: the instance dict, with the hvparams filled with the
|
171 |
cluster defaults
|
172 |
|
173 |
"""
|
174 |
idict = instance.ToDict() |
175 |
idict["hvparams"] = self._cfg.GetClusterInfo().FillHV(instance) |
176 |
return idict
|
177 |
|
178 |
def call_volume_list(self, node_list, vg_name): |
179 |
"""Gets the logical volumes present in a given volume group.
|
180 |
|
181 |
This is a multi-node call.
|
182 |
|
183 |
"""
|
184 |
c = Client("volume_list", [vg_name])
|
185 |
c.connect_list(node_list) |
186 |
c.run() |
187 |
return c.getresult()
|
188 |
|
189 |
def call_vg_list(self, node_list): |
190 |
"""Gets the volume group list.
|
191 |
|
192 |
This is a multi-node call.
|
193 |
|
194 |
"""
|
195 |
c = Client("vg_list", [])
|
196 |
c.connect_list(node_list) |
197 |
c.run() |
198 |
return c.getresult()
|
199 |
|
200 |
def call_bridges_exist(self, node, bridges_list): |
201 |
"""Checks if a node has all the bridges given.
|
202 |
|
203 |
This method checks if all bridges given in the bridges_list are
|
204 |
present on the remote node, so that an instance that uses interfaces
|
205 |
on those bridges can be started.
|
206 |
|
207 |
This is a single-node call.
|
208 |
|
209 |
"""
|
210 |
c = Client("bridges_exist", [bridges_list])
|
211 |
c.connect(node) |
212 |
c.run() |
213 |
return c.getresult().get(node, False) |
214 |
|
215 |
def call_instance_start(self, node, instance, extra_args): |
216 |
"""Starts an instance.
|
217 |
|
218 |
This is a single-node call.
|
219 |
|
220 |
"""
|
221 |
c = Client("instance_start", [self._InstDict(instance), extra_args]) |
222 |
c.connect(node) |
223 |
c.run() |
224 |
return c.getresult().get(node, False) |
225 |
|
226 |
def call_instance_shutdown(self, node, instance): |
227 |
"""Stops an instance.
|
228 |
|
229 |
This is a single-node call.
|
230 |
|
231 |
"""
|
232 |
c = Client("instance_shutdown", [self._InstDict(instance)]) |
233 |
c.connect(node) |
234 |
c.run() |
235 |
return c.getresult().get(node, False) |
236 |
|
237 |
def call_instance_migrate(self, node, instance, target, live): |
238 |
"""Migrate an instance.
|
239 |
|
240 |
This is a single-node call.
|
241 |
|
242 |
@type node: string
|
243 |
@param node: the node on which the instance is currently running
|
244 |
@type instance: C{objects.Instance}
|
245 |
@param instance: the instance definition
|
246 |
@type target: string
|
247 |
@param target: the target node name
|
248 |
@type live: boolean
|
249 |
@param live: whether the migration should be done live or not (the
|
250 |
interpretation of this parameter is left to the hypervisor)
|
251 |
|
252 |
"""
|
253 |
c = Client("instance_migrate", [self._InstDict(instance), target, live]) |
254 |
c.connect(node) |
255 |
c.run() |
256 |
return c.getresult().get(node, False) |
257 |
|
258 |
def call_instance_reboot(self, node, instance, reboot_type, extra_args): |
259 |
"""Reboots an instance.
|
260 |
|
261 |
This is a single-node call.
|
262 |
|
263 |
"""
|
264 |
c = Client("instance_reboot", [self._InstDict(instance), |
265 |
reboot_type, extra_args]) |
266 |
c.connect(node) |
267 |
c.run() |
268 |
return c.getresult().get(node, False) |
269 |
|
270 |
def call_instance_os_add(self, node, inst, osdev, swapdev): |
271 |
"""Installs an OS on the given instance.
|
272 |
|
273 |
This is a single-node call.
|
274 |
|
275 |
"""
|
276 |
params = [self._InstDict(inst), osdev, swapdev]
|
277 |
c = Client("instance_os_add", params)
|
278 |
c.connect(node) |
279 |
c.run() |
280 |
return c.getresult().get(node, False) |
281 |
|
282 |
def call_instance_run_rename(self, node, inst, old_name, osdev, swapdev): |
283 |
"""Run the OS rename script for an instance.
|
284 |
|
285 |
This is a single-node call.
|
286 |
|
287 |
"""
|
288 |
params = [self._InstDict(inst), old_name, osdev, swapdev]
|
289 |
c = Client("instance_run_rename", params)
|
290 |
c.connect(node) |
291 |
c.run() |
292 |
return c.getresult().get(node, False) |
293 |
|
294 |
def call_instance_info(self, node, instance, hname): |
295 |
"""Returns information about a single instance.
|
296 |
|
297 |
This is a single-node call.
|
298 |
|
299 |
@type node_list: list
|
300 |
@param node_list: the list of nodes to query
|
301 |
@type instance: string
|
302 |
@param instance: the instance name
|
303 |
@type hname: string
|
304 |
@param hname: the hypervisor type of the instance
|
305 |
|
306 |
"""
|
307 |
c = Client("instance_info", [instance, hname])
|
308 |
c.connect(node) |
309 |
c.run() |
310 |
return c.getresult().get(node, False) |
311 |
|
312 |
def call_all_instances_info(self, node_list, hypervisor_list): |
313 |
"""Returns information about all instances on the given nodes.
|
314 |
|
315 |
This is a multi-node call.
|
316 |
|
317 |
@type node_list: list
|
318 |
@param node_list: the list of nodes to query
|
319 |
@type hypervisor_list: list
|
320 |
@param hypervisor_list: the hypervisors to query for instances
|
321 |
|
322 |
"""
|
323 |
c = Client("all_instances_info", [hypervisor_list])
|
324 |
c.connect_list(node_list) |
325 |
c.run() |
326 |
return c.getresult()
|
327 |
|
328 |
def call_instance_list(self, node_list, hypervisor_list): |
329 |
"""Returns the list of running instances on a given node.
|
330 |
|
331 |
This is a multi-node call.
|
332 |
|
333 |
@type node_list: list
|
334 |
@param node_list: the list of nodes to query
|
335 |
@type hypervisor_list: list
|
336 |
@param hypervisor_list: the hypervisors to query for instances
|
337 |
|
338 |
"""
|
339 |
c = Client("instance_list", [hypervisor_list])
|
340 |
c.connect_list(node_list) |
341 |
c.run() |
342 |
return c.getresult()
|
343 |
|
344 |
def call_node_tcp_ping(self, node, source, target, port, timeout, |
345 |
live_port_needed): |
346 |
"""Do a TcpPing on the remote node
|
347 |
|
348 |
This is a single-node call.
|
349 |
|
350 |
"""
|
351 |
c = Client("node_tcp_ping", [source, target, port, timeout,
|
352 |
live_port_needed]) |
353 |
c.connect(node) |
354 |
c.run() |
355 |
return c.getresult().get(node, False) |
356 |
|
357 |
def call_node_has_ip_address(self, node, address): |
358 |
"""Checks if a node has the given IP address.
|
359 |
|
360 |
This is a single-node call.
|
361 |
|
362 |
"""
|
363 |
c = Client("node_has_ip_address", [address])
|
364 |
c.connect(node) |
365 |
c.run() |
366 |
return c.getresult().get(node, False) |
367 |
|
368 |
def call_node_info(self, node_list, vg_name, hypervisor_type): |
369 |
"""Return node information.
|
370 |
|
371 |
This will return memory information and volume group size and free
|
372 |
space.
|
373 |
|
374 |
This is a multi-node call.
|
375 |
|
376 |
@type node_list: list
|
377 |
@param node_list: the list of nodes to query
|
378 |
@type vgname: C{string}
|
379 |
@param vgname: the name of the volume group to ask for disk space
|
380 |
information
|
381 |
@type hypervisor_type: C{str}
|
382 |
@param hypervisor_type: the name of the hypervisor to ask for
|
383 |
memory information
|
384 |
|
385 |
"""
|
386 |
c = Client("node_info", [vg_name, hypervisor_type])
|
387 |
c.connect_list(node_list) |
388 |
c.run() |
389 |
retux = c.getresult() |
390 |
|
391 |
for node_name in retux: |
392 |
ret = retux.get(node_name, False)
|
393 |
if type(ret) != dict: |
394 |
logger.Error("could not connect to node %s" % (node_name))
|
395 |
ret = {} |
396 |
|
397 |
utils.CheckDict(ret, |
398 |
{ 'memory_total' : '-', |
399 |
'memory_dom0' : '-', |
400 |
'memory_free' : '-', |
401 |
'vg_size' : 'node_unreachable', |
402 |
'vg_free' : '-' }, |
403 |
"call_node_info",
|
404 |
) |
405 |
return retux
|
406 |
|
407 |
def call_node_add(self, node, dsa, dsapub, rsa, rsapub, ssh, sshpub): |
408 |
"""Add a node to the cluster.
|
409 |
|
410 |
This is a single-node call.
|
411 |
|
412 |
"""
|
413 |
params = [dsa, dsapub, rsa, rsapub, ssh, sshpub] |
414 |
c = Client("node_add", params)
|
415 |
c.connect(node) |
416 |
c.run() |
417 |
return c.getresult().get(node, False) |
418 |
|
419 |
def call_node_verify(self, node_list, checkdict, cluster_name): |
420 |
"""Request verification of given parameters.
|
421 |
|
422 |
This is a multi-node call.
|
423 |
|
424 |
"""
|
425 |
c = Client("node_verify", [checkdict, cluster_name])
|
426 |
c.connect_list(node_list) |
427 |
c.run() |
428 |
return c.getresult()
|
429 |
|
430 |
@staticmethod
|
431 |
def call_node_start_master(node, start_daemons): |
432 |
"""Tells a node to activate itself as a master.
|
433 |
|
434 |
This is a single-node call.
|
435 |
|
436 |
"""
|
437 |
c = Client("node_start_master", [start_daemons])
|
438 |
c.connect(node) |
439 |
c.run() |
440 |
return c.getresult().get(node, False) |
441 |
|
442 |
@staticmethod
|
443 |
def call_node_stop_master(node, stop_daemons): |
444 |
"""Tells a node to demote itself from master status.
|
445 |
|
446 |
This is a single-node call.
|
447 |
|
448 |
"""
|
449 |
c = Client("node_stop_master", [stop_daemons])
|
450 |
c.connect(node) |
451 |
c.run() |
452 |
return c.getresult().get(node, False) |
453 |
|
454 |
@staticmethod
|
455 |
def call_master_info(node_list): |
456 |
"""Query master info.
|
457 |
|
458 |
This is a multi-node call.
|
459 |
|
460 |
"""
|
461 |
# TODO: should this method query down nodes?
|
462 |
c = Client("master_info", [])
|
463 |
c.connect_list(node_list) |
464 |
c.run() |
465 |
return c.getresult()
|
466 |
|
467 |
def call_version(self, node_list): |
468 |
"""Query node version.
|
469 |
|
470 |
This is a multi-node call.
|
471 |
|
472 |
"""
|
473 |
c = Client("version", [])
|
474 |
c.connect_list(node_list) |
475 |
c.run() |
476 |
return c.getresult()
|
477 |
|
478 |
def call_blockdev_create(self, node, bdev, size, owner, on_primary, info): |
479 |
"""Request creation of a given block device.
|
480 |
|
481 |
This is a single-node call.
|
482 |
|
483 |
"""
|
484 |
params = [bdev.ToDict(), size, owner, on_primary, info] |
485 |
c = Client("blockdev_create", params)
|
486 |
c.connect(node) |
487 |
c.run() |
488 |
return c.getresult().get(node, False) |
489 |
|
490 |
def call_blockdev_remove(self, node, bdev): |
491 |
"""Request removal of a given block device.
|
492 |
|
493 |
This is a single-node call.
|
494 |
|
495 |
"""
|
496 |
c = Client("blockdev_remove", [bdev.ToDict()])
|
497 |
c.connect(node) |
498 |
c.run() |
499 |
return c.getresult().get(node, False) |
500 |
|
501 |
def call_blockdev_rename(self, node, devlist): |
502 |
"""Request rename of the given block devices.
|
503 |
|
504 |
This is a single-node call.
|
505 |
|
506 |
"""
|
507 |
params = [(d.ToDict(), uid) for d, uid in devlist] |
508 |
c = Client("blockdev_rename", params)
|
509 |
c.connect(node) |
510 |
c.run() |
511 |
return c.getresult().get(node, False) |
512 |
|
513 |
def call_blockdev_assemble(self, node, disk, owner, on_primary): |
514 |
"""Request assembling of a given block device.
|
515 |
|
516 |
This is a single-node call.
|
517 |
|
518 |
"""
|
519 |
params = [disk.ToDict(), owner, on_primary] |
520 |
c = Client("blockdev_assemble", params)
|
521 |
c.connect(node) |
522 |
c.run() |
523 |
return c.getresult().get(node, False) |
524 |
|
525 |
def call_blockdev_shutdown(self, node, disk): |
526 |
"""Request shutdown of a given block device.
|
527 |
|
528 |
This is a single-node call.
|
529 |
|
530 |
"""
|
531 |
c = Client("blockdev_shutdown", [disk.ToDict()])
|
532 |
c.connect(node) |
533 |
c.run() |
534 |
return c.getresult().get(node, False) |
535 |
|
536 |
def call_blockdev_addchildren(self, node, bdev, ndevs): |
537 |
"""Request adding a list of children to a (mirroring) device.
|
538 |
|
539 |
This is a single-node call.
|
540 |
|
541 |
"""
|
542 |
params = [bdev.ToDict(), [disk.ToDict() for disk in ndevs]] |
543 |
c = Client("blockdev_addchildren", params)
|
544 |
c.connect(node) |
545 |
c.run() |
546 |
return c.getresult().get(node, False) |
547 |
|
548 |
def call_blockdev_removechildren(self, node, bdev, ndevs): |
549 |
"""Request removing a list of children from a (mirroring) device.
|
550 |
|
551 |
This is a single-node call.
|
552 |
|
553 |
"""
|
554 |
params = [bdev.ToDict(), [disk.ToDict() for disk in ndevs]] |
555 |
c = Client("blockdev_removechildren", params)
|
556 |
c.connect(node) |
557 |
c.run() |
558 |
return c.getresult().get(node, False) |
559 |
|
560 |
def call_blockdev_getmirrorstatus(self, node, disks): |
561 |
"""Request status of a (mirroring) device.
|
562 |
|
563 |
This is a single-node call.
|
564 |
|
565 |
"""
|
566 |
params = [dsk.ToDict() for dsk in disks] |
567 |
c = Client("blockdev_getmirrorstatus", params)
|
568 |
c.connect(node) |
569 |
c.run() |
570 |
return c.getresult().get(node, False) |
571 |
|
572 |
def call_blockdev_find(self, node, disk): |
573 |
"""Request identification of a given block device.
|
574 |
|
575 |
This is a single-node call.
|
576 |
|
577 |
"""
|
578 |
c = Client("blockdev_find", [disk.ToDict()])
|
579 |
c.connect(node) |
580 |
c.run() |
581 |
return c.getresult().get(node, False) |
582 |
|
583 |
def call_blockdev_close(self, node, disks): |
584 |
"""Closes the given block devices.
|
585 |
|
586 |
This is a single-node call.
|
587 |
|
588 |
"""
|
589 |
params = [cf.ToDict() for cf in disks] |
590 |
c = Client("blockdev_close", params)
|
591 |
c.connect(node) |
592 |
c.run() |
593 |
return c.getresult().get(node, False) |
594 |
|
595 |
@staticmethod
|
596 |
def call_upload_file(node_list, file_name): |
597 |
"""Upload a file.
|
598 |
|
599 |
The node will refuse the operation in case the file is not on the
|
600 |
approved file list.
|
601 |
|
602 |
This is a multi-node call.
|
603 |
|
604 |
"""
|
605 |
fh = file(file_name)
|
606 |
try:
|
607 |
data = fh.read() |
608 |
finally:
|
609 |
fh.close() |
610 |
st = os.stat(file_name) |
611 |
params = [file_name, data, st.st_mode, st.st_uid, st.st_gid, |
612 |
st.st_atime, st.st_mtime] |
613 |
c = Client("upload_file", params)
|
614 |
c.connect_list(node_list) |
615 |
c.run() |
616 |
return c.getresult()
|
617 |
|
618 |
def call_os_diagnose(self, node_list): |
619 |
"""Request a diagnose of OS definitions.
|
620 |
|
621 |
This is a multi-node call.
|
622 |
|
623 |
"""
|
624 |
c = Client("os_diagnose", [])
|
625 |
c.connect_list(node_list) |
626 |
c.run() |
627 |
result = c.getresult() |
628 |
new_result = {} |
629 |
for node_name in result: |
630 |
if result[node_name]:
|
631 |
nr = [objects.OS.FromDict(oss) for oss in result[node_name]] |
632 |
else:
|
633 |
nr = [] |
634 |
new_result[node_name] = nr |
635 |
return new_result
|
636 |
|
637 |
def call_os_get(self, node, name): |
638 |
"""Returns an OS definition.
|
639 |
|
640 |
This is a single-node call.
|
641 |
|
642 |
"""
|
643 |
c = Client("os_get", [name])
|
644 |
c.connect(node) |
645 |
c.run() |
646 |
result = c.getresult().get(node, False)
|
647 |
if isinstance(result, dict): |
648 |
return objects.OS.FromDict(result)
|
649 |
else:
|
650 |
return result
|
651 |
|
652 |
def call_hooks_runner(self, node_list, hpath, phase, env): |
653 |
"""Call the hooks runner.
|
654 |
|
655 |
Args:
|
656 |
- op: the OpCode instance
|
657 |
- env: a dictionary with the environment
|
658 |
|
659 |
This is a multi-node call.
|
660 |
|
661 |
"""
|
662 |
params = [hpath, phase, env] |
663 |
c = Client("hooks_runner", params)
|
664 |
c.connect_list(node_list) |
665 |
c.run() |
666 |
result = c.getresult() |
667 |
return result
|
668 |
|
669 |
def call_iallocator_runner(self, node, name, idata): |
670 |
"""Call an iallocator on a remote node
|
671 |
|
672 |
Args:
|
673 |
- name: the iallocator name
|
674 |
- input: the json-encoded input string
|
675 |
|
676 |
This is a single-node call.
|
677 |
|
678 |
"""
|
679 |
params = [name, idata] |
680 |
c = Client("iallocator_runner", params)
|
681 |
c.connect(node) |
682 |
c.run() |
683 |
result = c.getresult().get(node, False)
|
684 |
return result
|
685 |
|
686 |
def call_blockdev_grow(self, node, cf_bdev, amount): |
687 |
"""Request a snapshot of the given block device.
|
688 |
|
689 |
This is a single-node call.
|
690 |
|
691 |
"""
|
692 |
c = Client("blockdev_grow", [cf_bdev.ToDict(), amount])
|
693 |
c.connect(node) |
694 |
c.run() |
695 |
return c.getresult().get(node, False) |
696 |
|
697 |
def call_blockdev_snapshot(self, node, cf_bdev): |
698 |
"""Request a snapshot of the given block device.
|
699 |
|
700 |
This is a single-node call.
|
701 |
|
702 |
"""
|
703 |
c = Client("blockdev_snapshot", [cf_bdev.ToDict()])
|
704 |
c.connect(node) |
705 |
c.run() |
706 |
return c.getresult().get(node, False) |
707 |
|
708 |
def call_snapshot_export(self, node, snap_bdev, dest_node, instance, |
709 |
cluster_name): |
710 |
"""Request the export of a given snapshot.
|
711 |
|
712 |
This is a single-node call.
|
713 |
|
714 |
"""
|
715 |
params = [snap_bdev.ToDict(), dest_node, |
716 |
self._InstDict(instance), cluster_name]
|
717 |
c = Client("snapshot_export", params)
|
718 |
c.connect(node) |
719 |
c.run() |
720 |
return c.getresult().get(node, False) |
721 |
|
722 |
def call_finalize_export(self, node, instance, snap_disks): |
723 |
"""Request the completion of an export operation.
|
724 |
|
725 |
This writes the export config file, etc.
|
726 |
|
727 |
This is a single-node call.
|
728 |
|
729 |
"""
|
730 |
flat_disks = [] |
731 |
for disk in snap_disks: |
732 |
flat_disks.append(disk.ToDict()) |
733 |
params = [self._InstDict(instance), flat_disks]
|
734 |
c = Client("finalize_export", params)
|
735 |
c.connect(node) |
736 |
c.run() |
737 |
return c.getresult().get(node, False) |
738 |
|
739 |
def call_export_info(self, node, path): |
740 |
"""Queries the export information in a given path.
|
741 |
|
742 |
This is a single-node call.
|
743 |
|
744 |
"""
|
745 |
c = Client("export_info", [path])
|
746 |
c.connect(node) |
747 |
c.run() |
748 |
result = c.getresult().get(node, False)
|
749 |
if not result: |
750 |
return result
|
751 |
return objects.SerializableConfigParser.Loads(str(result)) |
752 |
|
753 |
def call_instance_os_import(self, node, inst, osdev, swapdev, |
754 |
src_node, src_image, cluster_name): |
755 |
"""Request the import of a backup into an instance.
|
756 |
|
757 |
This is a single-node call.
|
758 |
|
759 |
"""
|
760 |
params = [self._InstDict(inst), osdev, swapdev,
|
761 |
src_node, src_image, cluster_name] |
762 |
c = Client("instance_os_import", params)
|
763 |
c.connect(node) |
764 |
c.run() |
765 |
return c.getresult().get(node, False) |
766 |
|
767 |
def call_export_list(self, node_list): |
768 |
"""Gets the stored exports list.
|
769 |
|
770 |
This is a multi-node call.
|
771 |
|
772 |
"""
|
773 |
c = Client("export_list", [])
|
774 |
c.connect_list(node_list) |
775 |
c.run() |
776 |
result = c.getresult() |
777 |
return result
|
778 |
|
779 |
def call_export_remove(self, node, export): |
780 |
"""Requests removal of a given export.
|
781 |
|
782 |
This is a single-node call.
|
783 |
|
784 |
"""
|
785 |
c = Client("export_remove", [export])
|
786 |
c.connect(node) |
787 |
c.run() |
788 |
return c.getresult().get(node, False) |
789 |
|
790 |
@staticmethod
|
791 |
def call_node_leave_cluster(node): |
792 |
"""Requests a node to clean the cluster information it has.
|
793 |
|
794 |
This will remove the configuration information from the ganeti data
|
795 |
dir.
|
796 |
|
797 |
This is a single-node call.
|
798 |
|
799 |
"""
|
800 |
c = Client("node_leave_cluster", [])
|
801 |
c.connect(node) |
802 |
c.run() |
803 |
return c.getresult().get(node, False) |
804 |
|
805 |
def call_node_volumes(self, node_list): |
806 |
"""Gets all volumes on node(s).
|
807 |
|
808 |
This is a multi-node call.
|
809 |
|
810 |
"""
|
811 |
c = Client("node_volumes", [])
|
812 |
c.connect_list(node_list) |
813 |
c.run() |
814 |
return c.getresult()
|
815 |
|
816 |
def call_test_delay(self, node_list, duration): |
817 |
"""Sleep for a fixed time on given node(s).
|
818 |
|
819 |
This is a multi-node call.
|
820 |
|
821 |
"""
|
822 |
c = Client("test_delay", [duration])
|
823 |
c.connect_list(node_list) |
824 |
c.run() |
825 |
return c.getresult()
|
826 |
|
827 |
def call_file_storage_dir_create(self, node, file_storage_dir): |
828 |
"""Create the given file storage directory.
|
829 |
|
830 |
This is a single-node call.
|
831 |
|
832 |
"""
|
833 |
c = Client("file_storage_dir_create", [file_storage_dir])
|
834 |
c.connect(node) |
835 |
c.run() |
836 |
return c.getresult().get(node, False) |
837 |
|
838 |
def call_file_storage_dir_remove(self, node, file_storage_dir): |
839 |
"""Remove the given file storage directory.
|
840 |
|
841 |
This is a single-node call.
|
842 |
|
843 |
"""
|
844 |
c = Client("file_storage_dir_remove", [file_storage_dir])
|
845 |
c.connect(node) |
846 |
c.run() |
847 |
return c.getresult().get(node, False) |
848 |
|
849 |
def call_file_storage_dir_rename(self, node, old_file_storage_dir, |
850 |
new_file_storage_dir): |
851 |
"""Rename file storage directory.
|
852 |
|
853 |
This is a single-node call.
|
854 |
|
855 |
"""
|
856 |
c = Client("file_storage_dir_rename",
|
857 |
[old_file_storage_dir, new_file_storage_dir]) |
858 |
c.connect(node) |
859 |
c.run() |
860 |
return c.getresult().get(node, False) |
861 |
|
862 |
@staticmethod
|
863 |
def call_jobqueue_update(node_list, file_name, content): |
864 |
"""Update job queue.
|
865 |
|
866 |
This is a multi-node call.
|
867 |
|
868 |
"""
|
869 |
c = Client("jobqueue_update", [file_name, content])
|
870 |
c.connect_list(node_list) |
871 |
c.run() |
872 |
result = c.getresult() |
873 |
return result
|
874 |
|
875 |
@staticmethod
|
876 |
def call_jobqueue_purge(node): |
877 |
"""Purge job queue.
|
878 |
|
879 |
This is a single-node call.
|
880 |
|
881 |
"""
|
882 |
c = Client("jobqueue_purge", [])
|
883 |
c.connect(node) |
884 |
c.run() |
885 |
return c.getresult().get(node, False) |
886 |
|
887 |
@staticmethod
|
888 |
def call_jobqueue_rename(node_list, old, new): |
889 |
"""Rename a job queue file.
|
890 |
|
891 |
This is a multi-node call.
|
892 |
|
893 |
"""
|
894 |
c = Client("jobqueue_rename", [old, new])
|
895 |
c.connect_list(node_list) |
896 |
c.run() |
897 |
result = c.getresult() |
898 |
return result
|
899 |
|
900 |
|
901 |
def call_hypervisor_validate_params(self, node_list, hvname, hvparams): |
902 |
"""Validate the hypervisor params.
|
903 |
|
904 |
This is a multi-node call.
|
905 |
|
906 |
@type node_list: list
|
907 |
@param node_list: the list of nodes to query
|
908 |
@type hvname: string
|
909 |
@param hvname: the hypervisor name
|
910 |
@type hvparams: dict
|
911 |
@param hvparams: the hypervisor parameters to be validated
|
912 |
|
913 |
"""
|
914 |
cluster = self._cfg.GetClusterInfo()
|
915 |
hv_full = cluster.FillDict(cluster.hvparams.get(hvname, {}), hvparams) |
916 |
c = Client("hypervisor_validate_params", [hvname, hv_full])
|
917 |
c.connect_list(node_list) |
918 |
c.run() |
919 |
result = c.getresult() |
920 |
return result
|