root / lib / rpc.py @ d50b3059
History | View | Annotate | Download (24.8 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 |
"""Inter-node RPC library.
|
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 |
import logging |
37 |
|
38 |
from ganeti import utils |
39 |
from ganeti import objects |
40 |
from ganeti import http |
41 |
from ganeti import serializer |
42 |
|
43 |
|
44 |
class Client: |
45 |
"""RPC Client class.
|
46 |
|
47 |
This class, given a (remote) method name, a list of parameters and a
|
48 |
list of nodes, will contact (in parallel) all nodes, and return a
|
49 |
dict of results (key: node name, value: result).
|
50 |
|
51 |
One current bug is that generic failure is still signalled by
|
52 |
'False' result, which is not good. This overloading of values can
|
53 |
cause bugs.
|
54 |
|
55 |
"""
|
56 |
def __init__(self, procedure, args): |
57 |
self.procedure = procedure
|
58 |
self.args = args
|
59 |
self.body = serializer.DumpJson(args, indent=False) |
60 |
|
61 |
self.port = utils.GetNodeDaemonPort()
|
62 |
self.nodepw = utils.GetNodeDaemonPassword()
|
63 |
self.nc = {}
|
64 |
|
65 |
def ConnectList(self, node_list, address_list=None): |
66 |
"""Add a list of nodes to the target nodes.
|
67 |
|
68 |
@type node_list: list
|
69 |
@param node_list: the list of node names to connect
|
70 |
@type address_list: list or None
|
71 |
@keyword address_list: either None or a list with node addresses,
|
72 |
which must have the same length as the node list
|
73 |
|
74 |
"""
|
75 |
if address_list is None: |
76 |
address_list = [None for _ in node_list] |
77 |
else:
|
78 |
assert len(node_list) == len(address_list), \ |
79 |
"Name and address lists should have the same length"
|
80 |
for node, address in zip(node_list, address_list): |
81 |
self.ConnectNode(node, address)
|
82 |
|
83 |
def ConnectNode(self, name, address=None): |
84 |
"""Add a node to the target list.
|
85 |
|
86 |
@type name: str
|
87 |
@param name: the node name
|
88 |
@type address: str
|
89 |
@keyword address: the node address, if known
|
90 |
|
91 |
"""
|
92 |
if address is None: |
93 |
address = name |
94 |
|
95 |
self.nc[name] = http.HttpClientRequest(address, self.port, http.HTTP_PUT, |
96 |
"/%s" % self.procedure, |
97 |
post_data=self.body)
|
98 |
|
99 |
def GetResults(self): |
100 |
"""Call nodes and return results.
|
101 |
|
102 |
@rtype: list
|
103 |
@returns: List of RPC results
|
104 |
|
105 |
"""
|
106 |
# TODO: Shared and reused manager
|
107 |
mgr = http.HttpClientManager() |
108 |
try:
|
109 |
mgr.ExecRequests(self.nc.values())
|
110 |
finally:
|
111 |
mgr.Shutdown() |
112 |
|
113 |
results = {} |
114 |
|
115 |
for name, req in self.nc.iteritems(): |
116 |
if req.success and req.resp_status == http.HTTP_OK: |
117 |
results[name] = serializer.LoadJson(req.resp_body) |
118 |
continue
|
119 |
|
120 |
if req.error:
|
121 |
msg = req.error |
122 |
else:
|
123 |
msg = req.resp_body |
124 |
|
125 |
logging.error("RPC error from node %s: %s", name, msg)
|
126 |
results[name] = False
|
127 |
|
128 |
return results
|
129 |
|
130 |
|
131 |
class RpcRunner(object): |
132 |
"""RPC runner class"""
|
133 |
|
134 |
def __init__(self, cfg): |
135 |
"""Initialized the rpc runner.
|
136 |
|
137 |
@type cfg: C{config.ConfigWriter}
|
138 |
@param cfg: the configuration object that will be used to get data
|
139 |
about the cluster
|
140 |
|
141 |
"""
|
142 |
self._cfg = cfg
|
143 |
|
144 |
def _InstDict(self, instance): |
145 |
"""Convert the given instance to a dict.
|
146 |
|
147 |
This is done via the instance's ToDict() method and additionally
|
148 |
we fill the hvparams with the cluster defaults.
|
149 |
|
150 |
@type instance: L{objects.Instance}
|
151 |
@param instance: an Instance object
|
152 |
@rtype: dict
|
153 |
@return: the instance dict, with the hvparams filled with the
|
154 |
cluster defaults
|
155 |
|
156 |
"""
|
157 |
idict = instance.ToDict() |
158 |
cluster = self._cfg.GetClusterInfo()
|
159 |
idict["hvparams"] = cluster.FillHV(instance)
|
160 |
idict["beparams"] = cluster.FillBE(instance)
|
161 |
return idict
|
162 |
|
163 |
def _ConnectList(self, client, node_list): |
164 |
"""Helper for computing node addresses.
|
165 |
|
166 |
@type client: L{Client}
|
167 |
@param client: a C{Client} instance
|
168 |
@type node_list: list
|
169 |
@param node_list: the node list we should connect
|
170 |
|
171 |
"""
|
172 |
all_nodes = self._cfg.GetAllNodesInfo()
|
173 |
addr_list = [] |
174 |
for node in node_list: |
175 |
if node in all_nodes: |
176 |
val = all_nodes[node].primary_ip |
177 |
else:
|
178 |
val = None
|
179 |
addr_list.append(val) |
180 |
client.ConnectList(node_list, address_list=addr_list) |
181 |
|
182 |
def _ConnectNode(self, client, node): |
183 |
"""Helper for computing one node's address.
|
184 |
|
185 |
@type client: L{Client}
|
186 |
@param client: a C{Client} instance
|
187 |
@type node: str
|
188 |
@param node: the node we should connect
|
189 |
|
190 |
"""
|
191 |
node_info = self._cfg.GetNodeInfo(node)
|
192 |
if node_info is not None: |
193 |
addr = node_info.primary_ip |
194 |
else:
|
195 |
addr = None
|
196 |
client.ConnectNode(node, address=addr) |
197 |
|
198 |
def call_volume_list(self, node_list, vg_name): |
199 |
"""Gets the logical volumes present in a given volume group.
|
200 |
|
201 |
This is a multi-node call.
|
202 |
|
203 |
"""
|
204 |
c = Client("volume_list", [vg_name])
|
205 |
self._ConnectList(c, node_list)
|
206 |
return c.GetResults()
|
207 |
|
208 |
def call_vg_list(self, node_list): |
209 |
"""Gets the volume group list.
|
210 |
|
211 |
This is a multi-node call.
|
212 |
|
213 |
"""
|
214 |
c = Client("vg_list", [])
|
215 |
self._ConnectList(c, node_list)
|
216 |
return c.GetResults()
|
217 |
|
218 |
def call_bridges_exist(self, node, bridges_list): |
219 |
"""Checks if a node has all the bridges given.
|
220 |
|
221 |
This method checks if all bridges given in the bridges_list are
|
222 |
present on the remote node, so that an instance that uses interfaces
|
223 |
on those bridges can be started.
|
224 |
|
225 |
This is a single-node call.
|
226 |
|
227 |
"""
|
228 |
c = Client("bridges_exist", [bridges_list])
|
229 |
self._ConnectNode(c, node)
|
230 |
return c.GetResults().get(node, False) |
231 |
|
232 |
def call_instance_start(self, node, instance, extra_args): |
233 |
"""Starts an instance.
|
234 |
|
235 |
This is a single-node call.
|
236 |
|
237 |
"""
|
238 |
c = Client("instance_start", [self._InstDict(instance), extra_args]) |
239 |
self._ConnectNode(c, node)
|
240 |
return c.GetResults().get(node, False) |
241 |
|
242 |
def call_instance_shutdown(self, node, instance): |
243 |
"""Stops an instance.
|
244 |
|
245 |
This is a single-node call.
|
246 |
|
247 |
"""
|
248 |
c = Client("instance_shutdown", [self._InstDict(instance)]) |
249 |
self._ConnectNode(c, node)
|
250 |
return c.GetResults().get(node, False) |
251 |
|
252 |
def call_instance_migrate(self, node, instance, target, live): |
253 |
"""Migrate an instance.
|
254 |
|
255 |
This is a single-node call.
|
256 |
|
257 |
@type node: string
|
258 |
@param node: the node on which the instance is currently running
|
259 |
@type instance: C{objects.Instance}
|
260 |
@param instance: the instance definition
|
261 |
@type target: string
|
262 |
@param target: the target node name
|
263 |
@type live: boolean
|
264 |
@param live: whether the migration should be done live or not (the
|
265 |
interpretation of this parameter is left to the hypervisor)
|
266 |
|
267 |
"""
|
268 |
c = Client("instance_migrate", [self._InstDict(instance), target, live]) |
269 |
self._ConnectNode(c, node)
|
270 |
return c.GetResults().get(node, False) |
271 |
|
272 |
def call_instance_reboot(self, node, instance, reboot_type, extra_args): |
273 |
"""Reboots an instance.
|
274 |
|
275 |
This is a single-node call.
|
276 |
|
277 |
"""
|
278 |
c = Client("instance_reboot", [self._InstDict(instance), |
279 |
reboot_type, extra_args]) |
280 |
self._ConnectNode(c, node)
|
281 |
return c.GetResults().get(node, False) |
282 |
|
283 |
def call_instance_os_add(self, node, inst): |
284 |
"""Installs an OS on the given instance.
|
285 |
|
286 |
This is a single-node call.
|
287 |
|
288 |
"""
|
289 |
params = [self._InstDict(inst)]
|
290 |
c = Client("instance_os_add", params)
|
291 |
self._ConnectNode(c, node)
|
292 |
return c.GetResults().get(node, False) |
293 |
|
294 |
def call_instance_run_rename(self, node, inst, old_name): |
295 |
"""Run the OS rename script for an instance.
|
296 |
|
297 |
This is a single-node call.
|
298 |
|
299 |
"""
|
300 |
params = [self._InstDict(inst), old_name]
|
301 |
c = Client("instance_run_rename", params)
|
302 |
self._ConnectNode(c, node)
|
303 |
return c.GetResults().get(node, False) |
304 |
|
305 |
def call_instance_info(self, node, instance, hname): |
306 |
"""Returns information about a single instance.
|
307 |
|
308 |
This is a single-node call.
|
309 |
|
310 |
@type node_list: list
|
311 |
@param node_list: the list of nodes to query
|
312 |
@type instance: string
|
313 |
@param instance: the instance name
|
314 |
@type hname: string
|
315 |
@param hname: the hypervisor type of the instance
|
316 |
|
317 |
"""
|
318 |
c = Client("instance_info", [instance, hname])
|
319 |
self._ConnectNode(c, node)
|
320 |
return c.GetResults().get(node, False) |
321 |
|
322 |
def call_all_instances_info(self, node_list, hypervisor_list): |
323 |
"""Returns information about all instances on the given nodes.
|
324 |
|
325 |
This is a multi-node call.
|
326 |
|
327 |
@type node_list: list
|
328 |
@param node_list: the list of nodes to query
|
329 |
@type hypervisor_list: list
|
330 |
@param hypervisor_list: the hypervisors to query for instances
|
331 |
|
332 |
"""
|
333 |
c = Client("all_instances_info", [hypervisor_list])
|
334 |
self._ConnectList(c, node_list)
|
335 |
return c.GetResults()
|
336 |
|
337 |
def call_instance_list(self, node_list, hypervisor_list): |
338 |
"""Returns the list of running instances on a given node.
|
339 |
|
340 |
This is a multi-node call.
|
341 |
|
342 |
@type node_list: list
|
343 |
@param node_list: the list of nodes to query
|
344 |
@type hypervisor_list: list
|
345 |
@param hypervisor_list: the hypervisors to query for instances
|
346 |
|
347 |
"""
|
348 |
c = Client("instance_list", [hypervisor_list])
|
349 |
self._ConnectList(c, node_list)
|
350 |
return c.GetResults()
|
351 |
|
352 |
def call_node_tcp_ping(self, node, source, target, port, timeout, |
353 |
live_port_needed): |
354 |
"""Do a TcpPing on the remote node
|
355 |
|
356 |
This is a single-node call.
|
357 |
|
358 |
"""
|
359 |
c = Client("node_tcp_ping", [source, target, port, timeout,
|
360 |
live_port_needed]) |
361 |
self._ConnectNode(c, node)
|
362 |
return c.GetResults().get(node, False) |
363 |
|
364 |
def call_node_has_ip_address(self, node, address): |
365 |
"""Checks if a node has the given IP address.
|
366 |
|
367 |
This is a single-node call.
|
368 |
|
369 |
"""
|
370 |
c = Client("node_has_ip_address", [address])
|
371 |
self._ConnectNode(c, node)
|
372 |
return c.GetResults().get(node, False) |
373 |
|
374 |
def call_node_info(self, node_list, vg_name, hypervisor_type): |
375 |
"""Return node information.
|
376 |
|
377 |
This will return memory information and volume group size and free
|
378 |
space.
|
379 |
|
380 |
This is a multi-node call.
|
381 |
|
382 |
@type node_list: list
|
383 |
@param node_list: the list of nodes to query
|
384 |
@type vgname: C{string}
|
385 |
@param vgname: the name of the volume group to ask for disk space
|
386 |
information
|
387 |
@type hypervisor_type: C{str}
|
388 |
@param hypervisor_type: the name of the hypervisor to ask for
|
389 |
memory information
|
390 |
|
391 |
"""
|
392 |
c = Client("node_info", [vg_name, hypervisor_type])
|
393 |
self._ConnectList(c, node_list)
|
394 |
retux = c.GetResults() |
395 |
|
396 |
for node_name in retux: |
397 |
ret = retux.get(node_name, False)
|
398 |
if type(ret) != dict: |
399 |
logging.error("could not connect to node %s", node_name)
|
400 |
ret = {} |
401 |
|
402 |
utils.CheckDict(ret, |
403 |
{ 'memory_total' : '-', |
404 |
'memory_dom0' : '-', |
405 |
'memory_free' : '-', |
406 |
'vg_size' : 'node_unreachable', |
407 |
'vg_free' : '-' }, |
408 |
"call_node_info",
|
409 |
) |
410 |
return retux
|
411 |
|
412 |
def call_node_add(self, node, dsa, dsapub, rsa, rsapub, ssh, sshpub): |
413 |
"""Add a node to the cluster.
|
414 |
|
415 |
This is a single-node call.
|
416 |
|
417 |
"""
|
418 |
params = [dsa, dsapub, rsa, rsapub, ssh, sshpub] |
419 |
c = Client("node_add", params)
|
420 |
self._ConnectNode(c, node)
|
421 |
return c.GetResults().get(node, False) |
422 |
|
423 |
def call_node_verify(self, node_list, checkdict, cluster_name): |
424 |
"""Request verification of given parameters.
|
425 |
|
426 |
This is a multi-node call.
|
427 |
|
428 |
"""
|
429 |
c = Client("node_verify", [checkdict, cluster_name])
|
430 |
self._ConnectList(c, node_list)
|
431 |
return c.GetResults()
|
432 |
|
433 |
@staticmethod
|
434 |
def call_node_start_master(node, start_daemons): |
435 |
"""Tells a node to activate itself as a master.
|
436 |
|
437 |
This is a single-node call.
|
438 |
|
439 |
"""
|
440 |
c = Client("node_start_master", [start_daemons])
|
441 |
c.ConnectNode(node) |
442 |
return c.GetResults().get(node, False) |
443 |
|
444 |
@staticmethod
|
445 |
def call_node_stop_master(node, stop_daemons): |
446 |
"""Tells a node to demote itself from master status.
|
447 |
|
448 |
This is a single-node call.
|
449 |
|
450 |
"""
|
451 |
c = Client("node_stop_master", [stop_daemons])
|
452 |
c.ConnectNode(node) |
453 |
return c.GetResults().get(node, False) |
454 |
|
455 |
@staticmethod
|
456 |
def call_master_info(node_list): |
457 |
"""Query master info.
|
458 |
|
459 |
This is a multi-node call.
|
460 |
|
461 |
"""
|
462 |
# TODO: should this method query down nodes?
|
463 |
c = Client("master_info", [])
|
464 |
c.ConnectList(node_list) |
465 |
return c.GetResults()
|
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 |
self._ConnectList(c, node_list)
|
475 |
return c.GetResults()
|
476 |
|
477 |
def call_blockdev_create(self, node, bdev, size, owner, on_primary, info): |
478 |
"""Request creation of a given block device.
|
479 |
|
480 |
This is a single-node call.
|
481 |
|
482 |
"""
|
483 |
params = [bdev.ToDict(), size, owner, on_primary, info] |
484 |
c = Client("blockdev_create", params)
|
485 |
self._ConnectNode(c, node)
|
486 |
return c.GetResults().get(node, False) |
487 |
|
488 |
def call_blockdev_remove(self, node, bdev): |
489 |
"""Request removal of a given block device.
|
490 |
|
491 |
This is a single-node call.
|
492 |
|
493 |
"""
|
494 |
c = Client("blockdev_remove", [bdev.ToDict()])
|
495 |
self._ConnectNode(c, node)
|
496 |
return c.GetResults().get(node, False) |
497 |
|
498 |
def call_blockdev_rename(self, node, devlist): |
499 |
"""Request rename of the given block devices.
|
500 |
|
501 |
This is a single-node call.
|
502 |
|
503 |
"""
|
504 |
params = [(d.ToDict(), uid) for d, uid in devlist] |
505 |
c = Client("blockdev_rename", params)
|
506 |
self._ConnectNode(c, node)
|
507 |
return c.GetResults().get(node, False) |
508 |
|
509 |
def call_blockdev_assemble(self, node, disk, owner, on_primary): |
510 |
"""Request assembling of a given block device.
|
511 |
|
512 |
This is a single-node call.
|
513 |
|
514 |
"""
|
515 |
params = [disk.ToDict(), owner, on_primary] |
516 |
c = Client("blockdev_assemble", params)
|
517 |
self._ConnectNode(c, node)
|
518 |
return c.GetResults().get(node, False) |
519 |
|
520 |
def call_blockdev_shutdown(self, node, disk): |
521 |
"""Request shutdown of a given block device.
|
522 |
|
523 |
This is a single-node call.
|
524 |
|
525 |
"""
|
526 |
c = Client("blockdev_shutdown", [disk.ToDict()])
|
527 |
self._ConnectNode(c, node)
|
528 |
return c.GetResults().get(node, False) |
529 |
|
530 |
def call_blockdev_addchildren(self, node, bdev, ndevs): |
531 |
"""Request adding a list of children to a (mirroring) device.
|
532 |
|
533 |
This is a single-node call.
|
534 |
|
535 |
"""
|
536 |
params = [bdev.ToDict(), [disk.ToDict() for disk in ndevs]] |
537 |
c = Client("blockdev_addchildren", params)
|
538 |
self._ConnectNode(c, node)
|
539 |
return c.GetResults().get(node, False) |
540 |
|
541 |
def call_blockdev_removechildren(self, node, bdev, ndevs): |
542 |
"""Request removing a list of children from a (mirroring) device.
|
543 |
|
544 |
This is a single-node call.
|
545 |
|
546 |
"""
|
547 |
params = [bdev.ToDict(), [disk.ToDict() for disk in ndevs]] |
548 |
c = Client("blockdev_removechildren", params)
|
549 |
self._ConnectNode(c, node)
|
550 |
return c.GetResults().get(node, False) |
551 |
|
552 |
def call_blockdev_getmirrorstatus(self, node, disks): |
553 |
"""Request status of a (mirroring) device.
|
554 |
|
555 |
This is a single-node call.
|
556 |
|
557 |
"""
|
558 |
params = [dsk.ToDict() for dsk in disks] |
559 |
c = Client("blockdev_getmirrorstatus", params)
|
560 |
self._ConnectNode(c, node)
|
561 |
return c.GetResults().get(node, False) |
562 |
|
563 |
def call_blockdev_find(self, node, disk): |
564 |
"""Request identification of a given block device.
|
565 |
|
566 |
This is a single-node call.
|
567 |
|
568 |
"""
|
569 |
c = Client("blockdev_find", [disk.ToDict()])
|
570 |
self._ConnectNode(c, node)
|
571 |
return c.GetResults().get(node, False) |
572 |
|
573 |
def call_blockdev_close(self, node, disks): |
574 |
"""Closes the given block devices.
|
575 |
|
576 |
This is a single-node call.
|
577 |
|
578 |
"""
|
579 |
params = [cf.ToDict() for cf in disks] |
580 |
c = Client("blockdev_close", params)
|
581 |
self._ConnectNode(c, node)
|
582 |
return c.GetResults().get(node, False) |
583 |
|
584 |
@staticmethod
|
585 |
def call_upload_file(node_list, file_name, address_list=None): |
586 |
"""Upload a file.
|
587 |
|
588 |
The node will refuse the operation in case the file is not on the
|
589 |
approved file list.
|
590 |
|
591 |
This is a multi-node call.
|
592 |
|
593 |
@type node_list: list
|
594 |
@param node_list: the list of node names to upload to
|
595 |
@type file_name: str
|
596 |
@param file_name: the filename to upload
|
597 |
@type address_list: list or None
|
598 |
@keyword address_list: an optional list of node addresses, in order
|
599 |
to optimize the RPC speed
|
600 |
|
601 |
"""
|
602 |
data = utils.ReadFile(file_name) |
603 |
st = os.stat(file_name) |
604 |
params = [file_name, data, st.st_mode, st.st_uid, st.st_gid, |
605 |
st.st_atime, st.st_mtime] |
606 |
c = Client("upload_file", params)
|
607 |
c.ConnectList(node_list, address_list=address_list) |
608 |
return c.GetResults()
|
609 |
|
610 |
def call_os_diagnose(self, node_list): |
611 |
"""Request a diagnose of OS definitions.
|
612 |
|
613 |
This is a multi-node call.
|
614 |
|
615 |
"""
|
616 |
c = Client("os_diagnose", [])
|
617 |
self._ConnectList(c, node_list)
|
618 |
result = c.GetResults() |
619 |
new_result = {} |
620 |
for node_name in result: |
621 |
if result[node_name]:
|
622 |
nr = [objects.OS.FromDict(oss) for oss in result[node_name]] |
623 |
else:
|
624 |
nr = [] |
625 |
new_result[node_name] = nr |
626 |
return new_result
|
627 |
|
628 |
def call_os_get(self, node, name): |
629 |
"""Returns an OS definition.
|
630 |
|
631 |
This is a single-node call.
|
632 |
|
633 |
"""
|
634 |
c = Client("os_get", [name])
|
635 |
self._ConnectNode(c, node)
|
636 |
result = c.GetResults().get(node, False)
|
637 |
if isinstance(result, dict): |
638 |
return objects.OS.FromDict(result)
|
639 |
else:
|
640 |
return result
|
641 |
|
642 |
def call_hooks_runner(self, node_list, hpath, phase, env): |
643 |
"""Call the hooks runner.
|
644 |
|
645 |
Args:
|
646 |
- op: the OpCode instance
|
647 |
- env: a dictionary with the environment
|
648 |
|
649 |
This is a multi-node call.
|
650 |
|
651 |
"""
|
652 |
params = [hpath, phase, env] |
653 |
c = Client("hooks_runner", params)
|
654 |
self._ConnectList(c, node_list)
|
655 |
result = c.GetResults() |
656 |
return result
|
657 |
|
658 |
def call_iallocator_runner(self, node, name, idata): |
659 |
"""Call an iallocator on a remote node
|
660 |
|
661 |
Args:
|
662 |
- name: the iallocator name
|
663 |
- input: the json-encoded input string
|
664 |
|
665 |
This is a single-node call.
|
666 |
|
667 |
"""
|
668 |
params = [name, idata] |
669 |
c = Client("iallocator_runner", params)
|
670 |
self._ConnectNode(c, node)
|
671 |
result = c.GetResults().get(node, False)
|
672 |
return result
|
673 |
|
674 |
def call_blockdev_grow(self, node, cf_bdev, amount): |
675 |
"""Request a snapshot of the given block device.
|
676 |
|
677 |
This is a single-node call.
|
678 |
|
679 |
"""
|
680 |
c = Client("blockdev_grow", [cf_bdev.ToDict(), amount])
|
681 |
self._ConnectNode(c, node)
|
682 |
return c.GetResults().get(node, False) |
683 |
|
684 |
def call_blockdev_snapshot(self, node, cf_bdev): |
685 |
"""Request a snapshot of the given block device.
|
686 |
|
687 |
This is a single-node call.
|
688 |
|
689 |
"""
|
690 |
c = Client("blockdev_snapshot", [cf_bdev.ToDict()])
|
691 |
self._ConnectNode(c, node)
|
692 |
return c.GetResults().get(node, False) |
693 |
|
694 |
def call_snapshot_export(self, node, snap_bdev, dest_node, instance, |
695 |
cluster_name, idx): |
696 |
"""Request the export of a given snapshot.
|
697 |
|
698 |
This is a single-node call.
|
699 |
|
700 |
"""
|
701 |
params = [snap_bdev.ToDict(), dest_node, |
702 |
self._InstDict(instance), cluster_name, idx]
|
703 |
c = Client("snapshot_export", params)
|
704 |
self._ConnectNode(c, node)
|
705 |
return c.GetResults().get(node, False) |
706 |
|
707 |
def call_finalize_export(self, node, instance, snap_disks): |
708 |
"""Request the completion of an export operation.
|
709 |
|
710 |
This writes the export config file, etc.
|
711 |
|
712 |
This is a single-node call.
|
713 |
|
714 |
"""
|
715 |
flat_disks = [] |
716 |
for disk in snap_disks: |
717 |
flat_disks.append(disk.ToDict()) |
718 |
params = [self._InstDict(instance), flat_disks]
|
719 |
c = Client("finalize_export", params)
|
720 |
self._ConnectNode(c, node)
|
721 |
return c.GetResults().get(node, False) |
722 |
|
723 |
def call_export_info(self, node, path): |
724 |
"""Queries the export information in a given path.
|
725 |
|
726 |
This is a single-node call.
|
727 |
|
728 |
"""
|
729 |
c = Client("export_info", [path])
|
730 |
self._ConnectNode(c, node)
|
731 |
result = c.GetResults().get(node, False)
|
732 |
if not result: |
733 |
return result
|
734 |
return objects.SerializableConfigParser.Loads(str(result)) |
735 |
|
736 |
def call_instance_os_import(self, node, inst, src_node, src_images, |
737 |
cluster_name): |
738 |
"""Request the import of a backup into an instance.
|
739 |
|
740 |
This is a single-node call.
|
741 |
|
742 |
"""
|
743 |
params = [self._InstDict(inst), src_node, src_images, cluster_name]
|
744 |
c = Client("instance_os_import", params)
|
745 |
self._ConnectNode(c, node)
|
746 |
return c.GetResults().get(node, False) |
747 |
|
748 |
def call_export_list(self, node_list): |
749 |
"""Gets the stored exports list.
|
750 |
|
751 |
This is a multi-node call.
|
752 |
|
753 |
"""
|
754 |
c = Client("export_list", [])
|
755 |
self._ConnectList(c, node_list)
|
756 |
result = c.GetResults() |
757 |
return result
|
758 |
|
759 |
def call_export_remove(self, node, export): |
760 |
"""Requests removal of a given export.
|
761 |
|
762 |
This is a single-node call.
|
763 |
|
764 |
"""
|
765 |
c = Client("export_remove", [export])
|
766 |
self._ConnectNode(c, node)
|
767 |
return c.GetResults().get(node, False) |
768 |
|
769 |
@staticmethod
|
770 |
def call_node_leave_cluster(node): |
771 |
"""Requests a node to clean the cluster information it has.
|
772 |
|
773 |
This will remove the configuration information from the ganeti data
|
774 |
dir.
|
775 |
|
776 |
This is a single-node call.
|
777 |
|
778 |
"""
|
779 |
c = Client("node_leave_cluster", [])
|
780 |
c.ConnectNode(node) |
781 |
return c.GetResults().get(node, False) |
782 |
|
783 |
def call_node_volumes(self, node_list): |
784 |
"""Gets all volumes on node(s).
|
785 |
|
786 |
This is a multi-node call.
|
787 |
|
788 |
"""
|
789 |
c = Client("node_volumes", [])
|
790 |
self._ConnectList(c, node_list)
|
791 |
return c.GetResults()
|
792 |
|
793 |
def call_test_delay(self, node_list, duration): |
794 |
"""Sleep for a fixed time on given node(s).
|
795 |
|
796 |
This is a multi-node call.
|
797 |
|
798 |
"""
|
799 |
c = Client("test_delay", [duration])
|
800 |
self._ConnectList(c, node_list)
|
801 |
return c.GetResults()
|
802 |
|
803 |
def call_file_storage_dir_create(self, node, file_storage_dir): |
804 |
"""Create the given file storage directory.
|
805 |
|
806 |
This is a single-node call.
|
807 |
|
808 |
"""
|
809 |
c = Client("file_storage_dir_create", [file_storage_dir])
|
810 |
self._ConnectNode(c, node)
|
811 |
return c.GetResults().get(node, False) |
812 |
|
813 |
def call_file_storage_dir_remove(self, node, file_storage_dir): |
814 |
"""Remove the given file storage directory.
|
815 |
|
816 |
This is a single-node call.
|
817 |
|
818 |
"""
|
819 |
c = Client("file_storage_dir_remove", [file_storage_dir])
|
820 |
self._ConnectNode(c, node)
|
821 |
return c.GetResults().get(node, False) |
822 |
|
823 |
def call_file_storage_dir_rename(self, node, old_file_storage_dir, |
824 |
new_file_storage_dir): |
825 |
"""Rename file storage directory.
|
826 |
|
827 |
This is a single-node call.
|
828 |
|
829 |
"""
|
830 |
c = Client("file_storage_dir_rename",
|
831 |
[old_file_storage_dir, new_file_storage_dir]) |
832 |
self._ConnectNode(c, node)
|
833 |
return c.GetResults().get(node, False) |
834 |
|
835 |
@staticmethod
|
836 |
def call_jobqueue_update(node_list, address_list, file_name, content): |
837 |
"""Update job queue.
|
838 |
|
839 |
This is a multi-node call.
|
840 |
|
841 |
"""
|
842 |
c = Client("jobqueue_update", [file_name, content])
|
843 |
c.ConnectList(node_list, address_list=address_list) |
844 |
result = c.GetResults() |
845 |
return result
|
846 |
|
847 |
@staticmethod
|
848 |
def call_jobqueue_purge(node): |
849 |
"""Purge job queue.
|
850 |
|
851 |
This is a single-node call.
|
852 |
|
853 |
"""
|
854 |
c = Client("jobqueue_purge", [])
|
855 |
c.ConnectNode(node) |
856 |
return c.GetResults().get(node, False) |
857 |
|
858 |
@staticmethod
|
859 |
def call_jobqueue_rename(node_list, address_list, old, new): |
860 |
"""Rename a job queue file.
|
861 |
|
862 |
This is a multi-node call.
|
863 |
|
864 |
"""
|
865 |
c = Client("jobqueue_rename", [old, new])
|
866 |
c.ConnectList(node_list, address_list=address_list) |
867 |
result = c.GetResults() |
868 |
return result
|
869 |
|
870 |
|
871 |
@staticmethod
|
872 |
def call_jobqueue_set_drain(node_list, drain_flag): |
873 |
"""Set the drain flag on the queue.
|
874 |
|
875 |
This is a multi-node call.
|
876 |
|
877 |
@type node_list: list
|
878 |
@param node_list: the list of nodes to query
|
879 |
@type drain_flag: bool
|
880 |
@param drain_flag: if True, will set the drain flag, otherwise reset it.
|
881 |
|
882 |
"""
|
883 |
c = Client("jobqueue_set_drain", [drain_flag])
|
884 |
c.ConnectList(node_list) |
885 |
result = c.GetResults() |
886 |
return result
|
887 |
|
888 |
|
889 |
def call_hypervisor_validate_params(self, node_list, hvname, hvparams): |
890 |
"""Validate the hypervisor params.
|
891 |
|
892 |
This is a multi-node call.
|
893 |
|
894 |
@type node_list: list
|
895 |
@param node_list: the list of nodes to query
|
896 |
@type hvname: string
|
897 |
@param hvname: the hypervisor name
|
898 |
@type hvparams: dict
|
899 |
@param hvparams: the hypervisor parameters to be validated
|
900 |
|
901 |
"""
|
902 |
cluster = self._cfg.GetClusterInfo()
|
903 |
hv_full = cluster.FillDict(cluster.hvparams.get(hvname, {}), hvparams) |
904 |
c = Client("hypervisor_validate_params", [hvname, hv_full])
|
905 |
self._ConnectList(c, node_list)
|
906 |
result = c.GetResults() |
907 |
return result
|