root / test / py / ganeti.hypervisor.hv_xen_unittest.py @ 398fd4f6
History | View | Annotate | Download (30.8 kB)
1 |
#!/usr/bin/python
|
---|---|
2 |
#
|
3 |
|
4 |
# Copyright (C) 2011, 2013 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 for testing ganeti.hypervisor.hv_xen"""
|
23 |
|
24 |
import string # pylint: disable=W0402 |
25 |
import unittest |
26 |
import tempfile |
27 |
import shutil |
28 |
import random |
29 |
import os |
30 |
import mock |
31 |
|
32 |
from ganeti import constants |
33 |
from ganeti import objects |
34 |
from ganeti import pathutils |
35 |
from ganeti import hypervisor |
36 |
from ganeti import utils |
37 |
from ganeti import errors |
38 |
from ganeti import compat |
39 |
|
40 |
from ganeti.hypervisor import hv_xen |
41 |
|
42 |
import testutils |
43 |
|
44 |
|
45 |
# Map from hypervisor class to hypervisor name
|
46 |
HVCLASS_TO_HVNAME = utils.InvertDict(hypervisor._HYPERVISOR_MAP) |
47 |
|
48 |
|
49 |
class TestConsole(unittest.TestCase): |
50 |
def test(self): |
51 |
for cls in [hv_xen.XenPvmHypervisor, hv_xen.XenHvmHypervisor]: |
52 |
instance = objects.Instance(name="xen.example.com",
|
53 |
primary_node="node24828")
|
54 |
cons = cls.GetInstanceConsole(instance, {}, {}) |
55 |
self.assertTrue(cons.Validate())
|
56 |
self.assertEqual(cons.kind, constants.CONS_SSH)
|
57 |
self.assertEqual(cons.host, instance.primary_node)
|
58 |
self.assertEqual(cons.command[-1], instance.name) |
59 |
|
60 |
|
61 |
class TestCreateConfigCpus(unittest.TestCase): |
62 |
def testEmpty(self): |
63 |
for cpu_mask in [None, ""]: |
64 |
self.assertEqual(hv_xen._CreateConfigCpus(cpu_mask),
|
65 |
"cpus = [ ]")
|
66 |
|
67 |
def testAll(self): |
68 |
self.assertEqual(hv_xen._CreateConfigCpus(constants.CPU_PINNING_ALL),
|
69 |
None)
|
70 |
|
71 |
def testOne(self): |
72 |
self.assertEqual(hv_xen._CreateConfigCpus("9"), "cpu = \"9\"") |
73 |
|
74 |
def testMultiple(self): |
75 |
self.assertEqual(hv_xen._CreateConfigCpus("0-2,4,5-5:3:all"), |
76 |
("cpus = [ \"0,1,2,4,5\", \"3\", \"%s\" ]" %
|
77 |
constants.CPU_PINNING_ALL_XEN)) |
78 |
|
79 |
|
80 |
class TestGetCommand(testutils.GanetiTestCase): |
81 |
def testCommandExplicit(self): |
82 |
"""Test the case when the command is given as class parameter explicitly.
|
83 |
|
84 |
"""
|
85 |
expected_cmd = "xl"
|
86 |
hv = hv_xen.XenHypervisor(_cmd=constants.XEN_CMD_XL) |
87 |
self.assertEqual(hv._GetCommand(None), expected_cmd) |
88 |
|
89 |
def testCommandInvalid(self): |
90 |
"""Test the case an invalid command is given as class parameter explicitly.
|
91 |
|
92 |
"""
|
93 |
hv = hv_xen.XenHypervisor(_cmd="invalidcommand")
|
94 |
self.assertRaises(errors.ProgrammerError, hv._GetCommand, None) |
95 |
|
96 |
def testCommandHvparams(self): |
97 |
expected_cmd = "xl"
|
98 |
test_hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
99 |
hv = hv_xen.XenHypervisor() |
100 |
self.assertEqual(hv._GetCommand(test_hvparams), expected_cmd)
|
101 |
|
102 |
def testCommandHvparamsInvalid(self): |
103 |
test_hvparams = {} |
104 |
hv = hv_xen.XenHypervisor() |
105 |
self.assertRaises(errors.HypervisorError, hv._GetCommand, test_hvparams)
|
106 |
|
107 |
def testCommandHvparamsCmdInvalid(self): |
108 |
test_hvparams = {constants.HV_XEN_CMD: "invalidcommand"}
|
109 |
hv = hv_xen.XenHypervisor() |
110 |
self.assertRaises(errors.ProgrammerError, hv._GetCommand, test_hvparams)
|
111 |
|
112 |
|
113 |
class TestParseInstanceList(testutils.GanetiTestCase): |
114 |
def test(self): |
115 |
data = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
|
116 |
|
117 |
# Exclude node
|
118 |
self.assertEqual(hv_xen._ParseInstanceList(data.splitlines(), False), []) |
119 |
|
120 |
# Include node
|
121 |
result = hv_xen._ParseInstanceList(data.splitlines(), True)
|
122 |
self.assertEqual(len(result), 1) |
123 |
self.assertEqual(len(result[0]), 6) |
124 |
|
125 |
# Name
|
126 |
self.assertEqual(result[0][0], hv_xen._DOM0_NAME) |
127 |
|
128 |
# ID
|
129 |
self.assertEqual(result[0][1], 0) |
130 |
|
131 |
# Memory
|
132 |
self.assertEqual(result[0][2], 1023) |
133 |
|
134 |
# VCPUs
|
135 |
self.assertEqual(result[0][3], 1) |
136 |
|
137 |
# State
|
138 |
self.assertEqual(result[0][4], "r-----") |
139 |
|
140 |
# Time
|
141 |
self.assertAlmostEqual(result[0][5], 121152.6) |
142 |
|
143 |
def testWrongLineFormat(self): |
144 |
tests = [ |
145 |
["three fields only"],
|
146 |
["name InvalidID 128 1 r----- 12345"],
|
147 |
] |
148 |
|
149 |
for lines in tests: |
150 |
try:
|
151 |
hv_xen._ParseInstanceList(["Header would be here"] + lines, False) |
152 |
except errors.HypervisorError, err:
|
153 |
self.assertTrue("Can't parse instance list" in str(err)) |
154 |
else:
|
155 |
self.fail("Exception was not raised") |
156 |
|
157 |
|
158 |
class TestGetInstanceList(testutils.GanetiTestCase): |
159 |
def _Fail(self): |
160 |
return utils.RunResult(constants.EXIT_FAILURE, None, |
161 |
"stdout", "stderr", None, |
162 |
NotImplemented, NotImplemented) |
163 |
|
164 |
def testTimeout(self): |
165 |
fn = testutils.CallCounter(self._Fail)
|
166 |
try:
|
167 |
hv_xen._GetInstanceList(fn, False, _timeout=0.1) |
168 |
except errors.HypervisorError, err:
|
169 |
self.assertTrue("timeout exceeded" in str(err)) |
170 |
else:
|
171 |
self.fail("Exception was not raised") |
172 |
|
173 |
self.assertTrue(fn.Count() < 10, |
174 |
msg="'xm list' was called too many times")
|
175 |
|
176 |
def _Success(self, stdout): |
177 |
return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
178 |
NotImplemented, NotImplemented) |
179 |
|
180 |
def testSuccess(self): |
181 |
data = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
182 |
|
183 |
fn = testutils.CallCounter(compat.partial(self._Success, data))
|
184 |
|
185 |
result = hv_xen._GetInstanceList(fn, True, _timeout=0.1) |
186 |
|
187 |
self.assertEqual(len(result), 4) |
188 |
|
189 |
self.assertEqual(map(compat.fst, result), [ |
190 |
"Domain-0",
|
191 |
"server01.example.com",
|
192 |
"web3106215069.example.com",
|
193 |
"testinstance.example.com",
|
194 |
]) |
195 |
|
196 |
self.assertEqual(fn.Count(), 1) |
197 |
|
198 |
|
199 |
class TestParseNodeInfo(testutils.GanetiTestCase): |
200 |
def testEmpty(self): |
201 |
self.assertEqual(hv_xen._ParseNodeInfo(""), {}) |
202 |
|
203 |
def testUnknownInput(self): |
204 |
data = "\n".join([
|
205 |
"foo bar",
|
206 |
"something else goes",
|
207 |
"here",
|
208 |
]) |
209 |
self.assertEqual(hv_xen._ParseNodeInfo(data), {})
|
210 |
|
211 |
def testBasicInfo(self): |
212 |
data = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
213 |
result = hv_xen._ParseNodeInfo(data) |
214 |
self.assertEqual(result, {
|
215 |
"cpu_nodes": 1, |
216 |
"cpu_sockets": 2, |
217 |
"cpu_total": 4, |
218 |
"hv_version": (4, 0), |
219 |
"memory_free": 8004, |
220 |
"memory_total": 16378, |
221 |
}) |
222 |
|
223 |
|
224 |
class TestMergeInstanceInfo(testutils.GanetiTestCase): |
225 |
def testEmpty(self): |
226 |
self.assertEqual(hv_xen._MergeInstanceInfo({}, []), {})
|
227 |
|
228 |
def _FakeXmList(self, include_node): |
229 |
return [
|
230 |
(hv_xen._DOM0_NAME, NotImplemented, 4096, 7, NotImplemented, |
231 |
NotImplemented),
|
232 |
("inst1.example.com", NotImplemented, 2048, 4, NotImplemented, |
233 |
NotImplemented),
|
234 |
] |
235 |
|
236 |
def testMissingNodeInfo(self): |
237 |
instance_list = self._FakeXmList(True) |
238 |
result = hv_xen._MergeInstanceInfo({}, instance_list) |
239 |
self.assertEqual(result, {
|
240 |
"memory_dom0": 4096, |
241 |
"dom0_cpus": 7, |
242 |
}) |
243 |
|
244 |
def testWithNodeInfo(self): |
245 |
info = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
246 |
instance_list = self._FakeXmList(True) |
247 |
result = hv_xen._GetNodeInfo(info, instance_list) |
248 |
self.assertEqual(result, {
|
249 |
"cpu_nodes": 1, |
250 |
"cpu_sockets": 2, |
251 |
"cpu_total": 4, |
252 |
"dom0_cpus": 7, |
253 |
"hv_version": (4, 0), |
254 |
"memory_dom0": 4096, |
255 |
"memory_free": 8004, |
256 |
"memory_hv": 2230, |
257 |
"memory_total": 16378, |
258 |
}) |
259 |
|
260 |
|
261 |
class TestGetConfigFileDiskData(unittest.TestCase): |
262 |
def testLetterCount(self): |
263 |
self.assertEqual(len(hv_xen._DISK_LETTERS), 26) |
264 |
|
265 |
def testNoDisks(self): |
266 |
self.assertEqual(hv_xen._GetConfigFileDiskData([], "hd"), []) |
267 |
|
268 |
def testManyDisks(self): |
269 |
for offset in [0, 1, 10]: |
270 |
disks = [(objects.Disk(dev_type=constants.LD_LV), "/tmp/disk/%s" % idx)
|
271 |
for idx in range(len(hv_xen._DISK_LETTERS) + offset)] |
272 |
|
273 |
if offset == 0: |
274 |
result = hv_xen._GetConfigFileDiskData(disks, "hd")
|
275 |
self.assertEqual(result, [
|
276 |
"'phy:/tmp/disk/%s,hd%s,r'" % (idx, string.ascii_lowercase[idx])
|
277 |
for idx in range(len(hv_xen._DISK_LETTERS) + offset) |
278 |
]) |
279 |
else:
|
280 |
try:
|
281 |
hv_xen._GetConfigFileDiskData(disks, "hd")
|
282 |
except errors.HypervisorError, err:
|
283 |
self.assertEqual(str(err), "Too many disks") |
284 |
else:
|
285 |
self.fail("Exception was not raised") |
286 |
|
287 |
def testTwoLvDisksWithMode(self): |
288 |
disks = [ |
289 |
(objects.Disk(dev_type=constants.LD_LV, mode=constants.DISK_RDWR), |
290 |
"/tmp/diskFirst"),
|
291 |
(objects.Disk(dev_type=constants.LD_LV, mode=constants.DISK_RDONLY), |
292 |
"/tmp/diskLast"),
|
293 |
] |
294 |
|
295 |
result = hv_xen._GetConfigFileDiskData(disks, "hd")
|
296 |
self.assertEqual(result, [
|
297 |
"'phy:/tmp/diskFirst,hda,w'",
|
298 |
"'phy:/tmp/diskLast,hdb,r'",
|
299 |
]) |
300 |
|
301 |
def testFileDisks(self): |
302 |
disks = [ |
303 |
(objects.Disk(dev_type=constants.LD_FILE, mode=constants.DISK_RDWR, |
304 |
physical_id=[constants.FD_LOOP]), |
305 |
"/tmp/diskFirst"),
|
306 |
(objects.Disk(dev_type=constants.LD_FILE, mode=constants.DISK_RDONLY, |
307 |
physical_id=[constants.FD_BLKTAP]), |
308 |
"/tmp/diskTwo"),
|
309 |
(objects.Disk(dev_type=constants.LD_FILE, mode=constants.DISK_RDWR, |
310 |
physical_id=[constants.FD_LOOP]), |
311 |
"/tmp/diskThree"),
|
312 |
(objects.Disk(dev_type=constants.LD_FILE, mode=constants.DISK_RDWR, |
313 |
physical_id=[constants.FD_BLKTAP]), |
314 |
"/tmp/diskLast"),
|
315 |
] |
316 |
|
317 |
result = hv_xen._GetConfigFileDiskData(disks, "sd")
|
318 |
self.assertEqual(result, [
|
319 |
"'file:/tmp/diskFirst,sda,w'",
|
320 |
"'tap:aio:/tmp/diskTwo,sdb,r'",
|
321 |
"'file:/tmp/diskThree,sdc,w'",
|
322 |
"'tap:aio:/tmp/diskLast,sdd,w'",
|
323 |
]) |
324 |
|
325 |
def testInvalidFileDisk(self): |
326 |
disks = [ |
327 |
(objects.Disk(dev_type=constants.LD_FILE, mode=constants.DISK_RDWR, |
328 |
physical_id=["#unknown#"]),
|
329 |
"/tmp/diskinvalid"),
|
330 |
] |
331 |
|
332 |
self.assertRaises(KeyError, hv_xen._GetConfigFileDiskData, disks, "sd") |
333 |
|
334 |
|
335 |
class TestXenHypervisorRunXen(unittest.TestCase): |
336 |
|
337 |
XEN_SUB_CMD = "help"
|
338 |
|
339 |
def testCommandUnknown(self): |
340 |
cmd = "#unknown command#"
|
341 |
self.assertFalse(cmd in constants.KNOWN_XEN_COMMANDS) |
342 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
343 |
_run_cmd_fn=NotImplemented,
|
344 |
_cmd=cmd) |
345 |
self.assertRaises(errors.ProgrammerError, hv._RunXen, [], None) |
346 |
|
347 |
def testCommandNoHvparams(self): |
348 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
349 |
_run_cmd_fn=NotImplemented)
|
350 |
hvparams = None
|
351 |
self.assertRaises(errors.HypervisorError, hv._RunXen, [self.XEN_SUB_CMD], |
352 |
hvparams) |
353 |
|
354 |
def testCommandFromHvparams(self): |
355 |
expected_xen_cmd = "xl"
|
356 |
hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
357 |
mock_run_cmd = mock.Mock() |
358 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
359 |
_run_cmd_fn=mock_run_cmd) |
360 |
hv._RunXen([self.XEN_SUB_CMD], hvparams=hvparams)
|
361 |
mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_SUB_CMD])
|
362 |
|
363 |
|
364 |
class TestXenHypervisorGetInstanceList(unittest.TestCase): |
365 |
|
366 |
RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
367 |
XEN_LIST = "list"
|
368 |
|
369 |
def testNoHvparams(self): |
370 |
expected_xen_cmd = "xm"
|
371 |
mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
|
372 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
373 |
_run_cmd_fn=mock_run_cmd) |
374 |
self.assertRaises(errors.HypervisorError, hv._GetInstanceList, True, None) |
375 |
|
376 |
def testFromHvparams(self): |
377 |
expected_xen_cmd = "xl"
|
378 |
hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
379 |
mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
|
380 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
381 |
_run_cmd_fn=mock_run_cmd) |
382 |
hv._GetInstanceList(True, hvparams)
|
383 |
mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST])
|
384 |
|
385 |
|
386 |
class TestXenHypervisorListInstances(unittest.TestCase): |
387 |
|
388 |
RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
389 |
XEN_LIST = "list"
|
390 |
|
391 |
def testNoHvparams(self): |
392 |
expected_xen_cmd = "xm"
|
393 |
mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
|
394 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
395 |
_run_cmd_fn=mock_run_cmd) |
396 |
self.assertRaises(errors.HypervisorError, hv.ListInstances)
|
397 |
|
398 |
def testHvparamsXl(self): |
399 |
expected_xen_cmd = "xl"
|
400 |
hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
401 |
mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
|
402 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
403 |
_run_cmd_fn=mock_run_cmd) |
404 |
hv.ListInstances(hvparams=hvparams) |
405 |
mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST])
|
406 |
|
407 |
|
408 |
class TestXenHypervisorCheckToolstack(unittest.TestCase): |
409 |
|
410 |
def setUp(self): |
411 |
self.tmpdir = tempfile.mkdtemp()
|
412 |
self.cfg_name = "xen_config" |
413 |
self.cfg_path = utils.PathJoin(self.tmpdir, self.cfg_name) |
414 |
self.hv = hv_xen.XenHypervisor()
|
415 |
|
416 |
def tearDown(self): |
417 |
shutil.rmtree(self.tmpdir)
|
418 |
|
419 |
def testBinaryNotFound(self): |
420 |
RESULT_FAILED = utils.RunResult(1, None, "", "", "", None, None) |
421 |
mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
422 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
423 |
_run_cmd_fn=mock_run_cmd) |
424 |
result = hv._CheckToolstackBinary("xl")
|
425 |
self.assertFalse(result)
|
426 |
|
427 |
def testCheckToolstackXlConfigured(self): |
428 |
RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
429 |
mock_run_cmd = mock.Mock(return_value=RESULT_OK) |
430 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
431 |
_run_cmd_fn=mock_run_cmd) |
432 |
result = hv._CheckToolstackXlConfigured() |
433 |
self.assertTrue(result)
|
434 |
|
435 |
def testCheckToolstackXlNotConfigured(self): |
436 |
RESULT_FAILED = utils.RunResult( |
437 |
1, None, "", |
438 |
"ERROR: A different toolstack (xm) have been selected!",
|
439 |
"", None, None) |
440 |
mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
441 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
442 |
_run_cmd_fn=mock_run_cmd) |
443 |
result = hv._CheckToolstackXlConfigured() |
444 |
self.assertFalse(result)
|
445 |
|
446 |
def testCheckToolstackXlFails(self): |
447 |
RESULT_FAILED = utils.RunResult( |
448 |
1, None, "", |
449 |
"ERROR: The pink bunny hid the binary.",
|
450 |
"", None, None) |
451 |
mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
452 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
453 |
_run_cmd_fn=mock_run_cmd) |
454 |
self.assertRaises(errors.HypervisorError, hv._CheckToolstackXlConfigured)
|
455 |
|
456 |
|
457 |
class TestXenHypervisorWriteConfigFile(unittest.TestCase): |
458 |
def setUp(self): |
459 |
self.tmpdir = tempfile.mkdtemp()
|
460 |
|
461 |
def tearDown(self): |
462 |
shutil.rmtree(self.tmpdir)
|
463 |
|
464 |
def testWriteError(self): |
465 |
cfgdir = utils.PathJoin(self.tmpdir, "foobar") |
466 |
|
467 |
hv = hv_xen.XenHypervisor(_cfgdir=cfgdir, |
468 |
_run_cmd_fn=NotImplemented,
|
469 |
_cmd=NotImplemented)
|
470 |
|
471 |
self.assertFalse(os.path.exists(cfgdir))
|
472 |
|
473 |
try:
|
474 |
hv._WriteConfigFile("name", "data") |
475 |
except errors.HypervisorError, err:
|
476 |
self.assertTrue(str(err).startswith("Cannot write Xen instance")) |
477 |
else:
|
478 |
self.fail("Exception was not raised") |
479 |
|
480 |
|
481 |
class TestXenHypervisorVerify(unittest.TestCase): |
482 |
|
483 |
def setUp(self): |
484 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
485 |
self._result_ok = utils.RunResult(0, None, output, "", "", None, None) |
486 |
|
487 |
def testVerify(self): |
488 |
hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL} |
489 |
mock_run_cmd = mock.Mock(return_value=self._result_ok)
|
490 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
491 |
_run_cmd_fn=mock_run_cmd) |
492 |
hv._CheckToolstack = mock.Mock(return_value=True)
|
493 |
result = hv.Verify(hvparams) |
494 |
self.assertTrue(result is None) |
495 |
|
496 |
def testVerifyToolstackNotOk(self): |
497 |
hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL} |
498 |
mock_run_cmd = mock.Mock(return_value=self._result_ok)
|
499 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
500 |
_run_cmd_fn=mock_run_cmd) |
501 |
hv._CheckToolstack = mock.Mock() |
502 |
hv._CheckToolstack.side_effect = errors.HypervisorError("foo")
|
503 |
result = hv.Verify(hvparams) |
504 |
self.assertTrue(result is not None) |
505 |
|
506 |
def testVerifyFailing(self): |
507 |
result_failed = utils.RunResult(1, None, "", "", "", None, None) |
508 |
mock_run_cmd = mock.Mock(return_value=result_failed) |
509 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
510 |
_run_cmd_fn=mock_run_cmd) |
511 |
hv._CheckToolstack = mock.Mock(return_value=True)
|
512 |
result = hv.Verify() |
513 |
self.assertTrue(result is not None) |
514 |
|
515 |
|
516 |
class _TestXenHypervisor(object): |
517 |
TARGET = NotImplemented
|
518 |
CMD = NotImplemented
|
519 |
HVNAME = NotImplemented
|
520 |
VALID_HVPARAMS = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
521 |
|
522 |
def setUp(self): |
523 |
super(_TestXenHypervisor, self).setUp() |
524 |
|
525 |
self.tmpdir = tempfile.mkdtemp()
|
526 |
|
527 |
self.vncpw = "".join(random.sample(string.ascii_letters, 10)) |
528 |
|
529 |
self.vncpw_path = utils.PathJoin(self.tmpdir, "vncpw") |
530 |
utils.WriteFile(self.vncpw_path, data=self.vncpw) |
531 |
|
532 |
def tearDown(self): |
533 |
super(_TestXenHypervisor, self).tearDown() |
534 |
|
535 |
shutil.rmtree(self.tmpdir)
|
536 |
|
537 |
def _GetHv(self, run_cmd=NotImplemented): |
538 |
return self.TARGET(_cfgdir=self.tmpdir, _run_cmd_fn=run_cmd, _cmd=self.CMD) |
539 |
|
540 |
def _SuccessCommand(self, stdout, cmd): |
541 |
self.assertEqual(cmd[0], self.CMD) |
542 |
|
543 |
return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
544 |
NotImplemented, NotImplemented) |
545 |
|
546 |
def _FailingCommand(self, cmd): |
547 |
self.assertEqual(cmd[0], self.CMD) |
548 |
|
549 |
return utils.RunResult(constants.EXIT_FAILURE, None, |
550 |
"", "This command failed", None, |
551 |
NotImplemented, NotImplemented) |
552 |
|
553 |
def _FakeTcpPing(self, expected, result, target, port, **kwargs): |
554 |
self.assertEqual((target, port), expected)
|
555 |
return result
|
556 |
|
557 |
def testReadingNonExistentConfigFile(self): |
558 |
hv = self._GetHv()
|
559 |
|
560 |
try:
|
561 |
hv._ReadConfigFile("inst15780.example.com")
|
562 |
except errors.HypervisorError, err:
|
563 |
self.assertTrue(str(err).startswith("Failed to load Xen config file:")) |
564 |
else:
|
565 |
self.fail("Exception was not raised") |
566 |
|
567 |
def testRemovingAutoConfigFile(self): |
568 |
name = "inst8206.example.com"
|
569 |
cfgfile = utils.PathJoin(self.tmpdir, name)
|
570 |
autodir = utils.PathJoin(self.tmpdir, "auto") |
571 |
autocfgfile = utils.PathJoin(autodir, name) |
572 |
|
573 |
os.mkdir(autodir) |
574 |
|
575 |
utils.WriteFile(autocfgfile, data="")
|
576 |
|
577 |
hv = self._GetHv()
|
578 |
|
579 |
self.assertTrue(os.path.isfile(autocfgfile))
|
580 |
hv._WriteConfigFile(name, "content")
|
581 |
self.assertFalse(os.path.exists(autocfgfile))
|
582 |
self.assertEqual(utils.ReadFile(cfgfile), "content") |
583 |
|
584 |
def _XenList(self, cmd): |
585 |
self.assertEqual(cmd, [self.CMD, "list"]) |
586 |
|
587 |
# TODO: Use actual data from "xl" command
|
588 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
589 |
|
590 |
return self._SuccessCommand(output, cmd) |
591 |
|
592 |
def testGetInstanceInfo(self): |
593 |
hv = self._GetHv(run_cmd=self._XenList) |
594 |
|
595 |
(name, instid, memory, vcpus, state, runtime) = \ |
596 |
hv.GetInstanceInfo("server01.example.com")
|
597 |
|
598 |
self.assertEqual(name, "server01.example.com") |
599 |
self.assertEqual(instid, 1) |
600 |
self.assertEqual(memory, 1024) |
601 |
self.assertEqual(vcpus, 1) |
602 |
self.assertEqual(state, "-b----") |
603 |
self.assertAlmostEqual(runtime, 167643.2) |
604 |
|
605 |
def testGetInstanceInfoDom0(self): |
606 |
hv = self._GetHv(run_cmd=self._XenList) |
607 |
|
608 |
# TODO: Not sure if this is actually used anywhere (can't find it), but the
|
609 |
# code supports querying for Dom0
|
610 |
(name, instid, memory, vcpus, state, runtime) = \ |
611 |
hv.GetInstanceInfo(hv_xen._DOM0_NAME) |
612 |
|
613 |
self.assertEqual(name, "Domain-0") |
614 |
self.assertEqual(instid, 0) |
615 |
self.assertEqual(memory, 1023) |
616 |
self.assertEqual(vcpus, 1) |
617 |
self.assertEqual(state, "r-----") |
618 |
self.assertAlmostEqual(runtime, 154706.1) |
619 |
|
620 |
def testGetInstanceInfoUnknown(self): |
621 |
hv = self._GetHv(run_cmd=self._XenList) |
622 |
|
623 |
result = hv.GetInstanceInfo("unknown.example.com")
|
624 |
self.assertTrue(result is None) |
625 |
|
626 |
def testGetAllInstancesInfo(self): |
627 |
hv = self._GetHv(run_cmd=self._XenList) |
628 |
|
629 |
result = hv.GetAllInstancesInfo() |
630 |
|
631 |
self.assertEqual(map(compat.fst, result), [ |
632 |
"server01.example.com",
|
633 |
"web3106215069.example.com",
|
634 |
"testinstance.example.com",
|
635 |
]) |
636 |
|
637 |
def testListInstances(self): |
638 |
hv = self._GetHv(run_cmd=self._XenList) |
639 |
|
640 |
self.assertEqual(hv.ListInstances(), [
|
641 |
"server01.example.com",
|
642 |
"web3106215069.example.com",
|
643 |
"testinstance.example.com",
|
644 |
]) |
645 |
|
646 |
def _StartInstanceCommand(self, inst, paused, failcreate, cmd): |
647 |
if cmd == [self.CMD, "info"]: |
648 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
649 |
elif cmd == [self.CMD, "list"]: |
650 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
|
651 |
elif cmd[:2] == [self.CMD, "create"]: |
652 |
args = cmd[2:]
|
653 |
cfgfile = utils.PathJoin(self.tmpdir, inst.name)
|
654 |
|
655 |
if paused:
|
656 |
self.assertEqual(args, ["-p", cfgfile]) |
657 |
else:
|
658 |
self.assertEqual(args, [cfgfile])
|
659 |
|
660 |
if failcreate:
|
661 |
return self._FailingCommand(cmd) |
662 |
|
663 |
output = ""
|
664 |
else:
|
665 |
self.fail("Unhandled command: %s" % (cmd, )) |
666 |
|
667 |
return self._SuccessCommand(output, cmd) |
668 |
|
669 |
def _MakeInstance(self): |
670 |
# Copy default parameters
|
671 |
bep = objects.FillDict(constants.BEC_DEFAULTS, {}) |
672 |
hvp = objects.FillDict(constants.HVC_DEFAULTS[self.HVNAME], {})
|
673 |
|
674 |
# Override default VNC password file path
|
675 |
if constants.HV_VNC_PASSWORD_FILE in hvp: |
676 |
hvp[constants.HV_VNC_PASSWORD_FILE] = self.vncpw_path
|
677 |
|
678 |
disks = [ |
679 |
(objects.Disk(dev_type=constants.LD_LV, mode=constants.DISK_RDWR), |
680 |
utils.PathJoin(self.tmpdir, "disk0")), |
681 |
(objects.Disk(dev_type=constants.LD_LV, mode=constants.DISK_RDONLY), |
682 |
utils.PathJoin(self.tmpdir, "disk1")), |
683 |
] |
684 |
|
685 |
inst = objects.Instance(name="server01.example.com",
|
686 |
hvparams=hvp, beparams=bep, |
687 |
osparams={}, nics=[], os="deb1",
|
688 |
disks=map(compat.fst, disks))
|
689 |
inst.UpgradeConfig() |
690 |
|
691 |
return (inst, disks)
|
692 |
|
693 |
def testStartInstance(self): |
694 |
(inst, disks) = self._MakeInstance()
|
695 |
pathutils.LOG_XEN_DIR = self.tmpdir
|
696 |
|
697 |
for failcreate in [False, True]: |
698 |
for paused in [False, True]: |
699 |
run_cmd = compat.partial(self._StartInstanceCommand,
|
700 |
inst, paused, failcreate) |
701 |
|
702 |
hv = self._GetHv(run_cmd=run_cmd)
|
703 |
|
704 |
# Ensure instance is not listed
|
705 |
self.assertTrue(inst.name not in hv.ListInstances()) |
706 |
|
707 |
# Remove configuration
|
708 |
cfgfile = utils.PathJoin(self.tmpdir, inst.name)
|
709 |
utils.RemoveFile(cfgfile) |
710 |
|
711 |
if failcreate:
|
712 |
self.assertRaises(errors.HypervisorError, hv.StartInstance,
|
713 |
inst, disks, paused) |
714 |
# Check whether a stale config file is left behind
|
715 |
self.assertFalse(os.path.exists(cfgfile))
|
716 |
else:
|
717 |
hv.StartInstance(inst, disks, paused) |
718 |
# Check if configuration was updated
|
719 |
lines = utils.ReadFile(cfgfile).splitlines() |
720 |
|
721 |
if constants.HV_VNC_PASSWORD_FILE in inst.hvparams: |
722 |
self.assertTrue(("vncpasswd = '%s'" % self.vncpw) in lines) |
723 |
else:
|
724 |
extra = inst.hvparams[constants.HV_KERNEL_ARGS] |
725 |
self.assertTrue(("extra = '%s'" % extra) in lines) |
726 |
|
727 |
def _StopInstanceCommand(self, instance_name, force, fail, cmd): |
728 |
if ((force and cmd[:2] == [self.CMD, "destroy"]) or |
729 |
(not force and cmd[:2] == [self.CMD, "shutdown"])): |
730 |
self.assertEqual(cmd[2:], [instance_name]) |
731 |
output = ""
|
732 |
else:
|
733 |
self.fail("Unhandled command: %s" % (cmd, )) |
734 |
|
735 |
if fail:
|
736 |
# Simulate a failing command
|
737 |
return self._FailingCommand(cmd) |
738 |
else:
|
739 |
return self._SuccessCommand(output, cmd) |
740 |
|
741 |
def testStopInstance(self): |
742 |
name = "inst4284.example.com"
|
743 |
cfgfile = utils.PathJoin(self.tmpdir, name)
|
744 |
cfgdata = "config file content\n"
|
745 |
|
746 |
for force in [False, True]: |
747 |
for fail in [False, True]: |
748 |
utils.WriteFile(cfgfile, data=cfgdata) |
749 |
|
750 |
run_cmd = compat.partial(self._StopInstanceCommand, name, force, fail)
|
751 |
|
752 |
hv = self._GetHv(run_cmd=run_cmd)
|
753 |
|
754 |
self.assertTrue(os.path.isfile(cfgfile))
|
755 |
|
756 |
if fail:
|
757 |
try:
|
758 |
hv._StopInstance(name, force, None)
|
759 |
except errors.HypervisorError, err:
|
760 |
self.assertTrue(str(err).startswith("Failed to stop instance")) |
761 |
else:
|
762 |
self.fail("Exception was not raised") |
763 |
self.assertEqual(utils.ReadFile(cfgfile), cfgdata,
|
764 |
msg=("Configuration was removed when stopping"
|
765 |
" instance failed"))
|
766 |
else:
|
767 |
hv._StopInstance(name, force, None)
|
768 |
self.assertFalse(os.path.exists(cfgfile))
|
769 |
|
770 |
def _MigrateNonRunningInstCmd(self, cmd): |
771 |
if cmd == [self.CMD, "list"]: |
772 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
|
773 |
else:
|
774 |
self.fail("Unhandled command: %s" % (cmd, )) |
775 |
|
776 |
return self._SuccessCommand(output, cmd) |
777 |
|
778 |
def testMigrateInstanceNotRunning(self): |
779 |
name = "nonexistinginstance.example.com"
|
780 |
target = constants.IP4_ADDRESS_LOCALHOST |
781 |
port = 14618
|
782 |
|
783 |
hv = self._GetHv(run_cmd=self._MigrateNonRunningInstCmd) |
784 |
|
785 |
for live in [False, True]: |
786 |
try:
|
787 |
hv._MigrateInstance(NotImplemented, name, target, port, live,
|
788 |
self.VALID_HVPARAMS, _ping_fn=NotImplemented) |
789 |
except errors.HypervisorError, err:
|
790 |
self.assertEqual(str(err), "Instance not running, cannot migrate") |
791 |
else:
|
792 |
self.fail("Exception was not raised") |
793 |
|
794 |
def _MigrateInstTargetUnreachCmd(self, cmd): |
795 |
if cmd == [self.CMD, "list"]: |
796 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
797 |
else:
|
798 |
self.fail("Unhandled command: %s" % (cmd, )) |
799 |
|
800 |
return self._SuccessCommand(output, cmd) |
801 |
|
802 |
def testMigrateTargetUnreachable(self): |
803 |
name = "server01.example.com"
|
804 |
target = constants.IP4_ADDRESS_LOCALHOST |
805 |
port = 28349
|
806 |
|
807 |
hv = self._GetHv(run_cmd=self._MigrateInstTargetUnreachCmd) |
808 |
hvparams = {constants.HV_XEN_CMD: self.CMD}
|
809 |
|
810 |
for live in [False, True]: |
811 |
if self.CMD == constants.XEN_CMD_XL: |
812 |
# TODO: Detect unreachable targets
|
813 |
pass
|
814 |
else:
|
815 |
try:
|
816 |
hv._MigrateInstance(NotImplemented, name, target, port, live,
|
817 |
hvparams, |
818 |
_ping_fn=compat.partial(self._FakeTcpPing,
|
819 |
(target, port), False))
|
820 |
except errors.HypervisorError, err:
|
821 |
wanted = "Remote host %s not" % target
|
822 |
self.assertTrue(str(err).startswith(wanted)) |
823 |
else:
|
824 |
self.fail("Exception was not raised") |
825 |
|
826 |
def _MigrateInstanceCmd(self, cluster_name, instance_name, target, port, |
827 |
live, fail, cmd): |
828 |
if cmd == [self.CMD, "list"]: |
829 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
830 |
elif cmd[:2] == [self.CMD, "migrate"]: |
831 |
if self.CMD == constants.XEN_CMD_XM: |
832 |
args = ["-p", str(port)] |
833 |
|
834 |
if live:
|
835 |
args.append("-l")
|
836 |
|
837 |
elif self.CMD == constants.XEN_CMD_XL: |
838 |
args = [ |
839 |
"-s", constants.XL_SSH_CMD % cluster_name,
|
840 |
"-C", utils.PathJoin(self.tmpdir, instance_name), |
841 |
] |
842 |
|
843 |
else:
|
844 |
self.fail("Unknown Xen command '%s'" % self.CMD) |
845 |
|
846 |
args.extend([instance_name, target]) |
847 |
self.assertEqual(cmd[2:], args) |
848 |
|
849 |
if fail:
|
850 |
return self._FailingCommand(cmd) |
851 |
|
852 |
output = ""
|
853 |
else:
|
854 |
self.fail("Unhandled command: %s" % (cmd, )) |
855 |
|
856 |
return self._SuccessCommand(output, cmd) |
857 |
|
858 |
def testMigrateInstance(self): |
859 |
clustername = "cluster.example.com"
|
860 |
instname = "server01.example.com"
|
861 |
target = constants.IP4_ADDRESS_LOCALHOST |
862 |
port = 22364
|
863 |
|
864 |
hvparams = {constants.HV_XEN_CMD: self.CMD}
|
865 |
|
866 |
for live in [False, True]: |
867 |
for fail in [False, True]: |
868 |
ping_fn = \ |
869 |
testutils.CallCounter(compat.partial(self._FakeTcpPing,
|
870 |
(target, port), True))
|
871 |
|
872 |
run_cmd = \ |
873 |
compat.partial(self._MigrateInstanceCmd,
|
874 |
clustername, instname, target, port, live, |
875 |
fail) |
876 |
|
877 |
hv = self._GetHv(run_cmd=run_cmd)
|
878 |
|
879 |
if fail:
|
880 |
try:
|
881 |
hv._MigrateInstance(clustername, instname, target, port, live, |
882 |
hvparams, _ping_fn=ping_fn) |
883 |
except errors.HypervisorError, err:
|
884 |
self.assertTrue(str(err).startswith("Failed to migrate instance")) |
885 |
else:
|
886 |
self.fail("Exception was not raised") |
887 |
else:
|
888 |
hv._MigrateInstance(clustername, instname, target, port, live, |
889 |
hvparams, _ping_fn=ping_fn) |
890 |
|
891 |
if self.CMD == constants.XEN_CMD_XM: |
892 |
expected_pings = 1
|
893 |
else:
|
894 |
expected_pings = 0
|
895 |
|
896 |
self.assertEqual(ping_fn.Count(), expected_pings)
|
897 |
|
898 |
def _GetNodeInfoCmd(self, fail, cmd): |
899 |
if cmd == [self.CMD, "info"]: |
900 |
if fail:
|
901 |
return self._FailingCommand(cmd) |
902 |
else:
|
903 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
904 |
elif cmd == [self.CMD, "list"]: |
905 |
if fail:
|
906 |
self.fail("'xm list' shouldn't be called when 'xm info' failed") |
907 |
else:
|
908 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
909 |
else:
|
910 |
self.fail("Unhandled command: %s" % (cmd, )) |
911 |
|
912 |
return self._SuccessCommand(output, cmd) |
913 |
|
914 |
def testGetNodeInfo(self): |
915 |
run_cmd = compat.partial(self._GetNodeInfoCmd, False) |
916 |
hv = self._GetHv(run_cmd=run_cmd)
|
917 |
result = hv.GetNodeInfo() |
918 |
|
919 |
self.assertEqual(result["hv_version"], (4, 0)) |
920 |
self.assertEqual(result["memory_free"], 8004) |
921 |
|
922 |
def testGetNodeInfoFailing(self): |
923 |
run_cmd = compat.partial(self._GetNodeInfoCmd, True) |
924 |
hv = self._GetHv(run_cmd=run_cmd)
|
925 |
self.assertTrue(hv.GetNodeInfo() is None) |
926 |
|
927 |
|
928 |
def _MakeTestClass(cls, cmd): |
929 |
"""Makes a class for testing.
|
930 |
|
931 |
The returned class has structure as shown in the following pseudo code:
|
932 |
|
933 |
class Test{cls.__name__}{cmd}(_TestXenHypervisor, unittest.TestCase):
|
934 |
TARGET = {cls}
|
935 |
CMD = {cmd}
|
936 |
HVNAME = {Hypervisor name retrieved using class}
|
937 |
|
938 |
@type cls: class
|
939 |
@param cls: Hypervisor class to be tested
|
940 |
@type cmd: string
|
941 |
@param cmd: Hypervisor command
|
942 |
@rtype: tuple
|
943 |
@return: Class name and class object (not instance)
|
944 |
|
945 |
"""
|
946 |
name = "Test%sCmd%s" % (cls.__name__, cmd.title())
|
947 |
bases = (_TestXenHypervisor, unittest.TestCase) |
948 |
hvname = HVCLASS_TO_HVNAME[cls] |
949 |
|
950 |
return (name, type(name, bases, dict(TARGET=cls, CMD=cmd, HVNAME=hvname))) |
951 |
|
952 |
|
953 |
# Create test classes programmatically instead of manually to reduce the risk
|
954 |
# of forgetting some combinations
|
955 |
for cls in [hv_xen.XenPvmHypervisor, hv_xen.XenHvmHypervisor]: |
956 |
for cmd in constants.KNOWN_XEN_COMMANDS: |
957 |
(name, testcls) = _MakeTestClass(cls, cmd) |
958 |
|
959 |
assert name not in locals() |
960 |
|
961 |
locals()[name] = testcls
|
962 |
|
963 |
|
964 |
if __name__ == "__main__": |
965 |
testutils.GanetiTestProgram() |