root / test / py / ganeti.hypervisor.hv_xen_unittest.py @ cd3b4ff4
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#!/usr/bin/python
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#
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# Copyright (C) 2011, 2013 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Script for testing ganeti.hypervisor.hv_xen"""
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import string # pylint: disable=W0402 |
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import unittest |
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import tempfile |
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import shutil |
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import random |
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import os |
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import mock |
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from ganeti import constants |
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from ganeti import objects |
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from ganeti import pathutils |
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from ganeti import hypervisor |
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from ganeti import utils |
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from ganeti import errors |
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from ganeti import compat |
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from ganeti.hypervisor import hv_xen |
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import testutils |
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# Map from hypervisor class to hypervisor name
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HVCLASS_TO_HVNAME = utils.InvertDict(hypervisor._HYPERVISOR_MAP) |
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class TestConsole(unittest.TestCase): |
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def test(self): |
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL}
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for cls in [hv_xen.XenPvmHypervisor(), hv_xen.XenHvmHypervisor()]: |
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instance = objects.Instance(name="xen.example.com",
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primary_node="node24828-uuid")
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node = objects.Node(name="node24828", uuid="node24828-uuid") |
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cons = cls.GetInstanceConsole(instance, node, hvparams, {})
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self.assertTrue(cons.Validate())
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self.assertEqual(cons.kind, constants.CONS_SSH)
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self.assertEqual(cons.host, node.name)
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self.assertEqual(cons.command[-1], instance.name) |
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class TestCreateConfigCpus(unittest.TestCase): |
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def testEmpty(self): |
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for cpu_mask in [None, ""]: |
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self.assertEqual(hv_xen._CreateConfigCpus(cpu_mask),
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"cpus = [ ]")
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def testAll(self): |
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self.assertEqual(hv_xen._CreateConfigCpus(constants.CPU_PINNING_ALL),
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None)
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def testOne(self): |
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self.assertEqual(hv_xen._CreateConfigCpus("9"), "cpu = \"9\"") |
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def testMultiple(self): |
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self.assertEqual(hv_xen._CreateConfigCpus("0-2,4,5-5:3:all"), |
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("cpus = [ \"0,1,2,4,5\", \"3\", \"%s\" ]" %
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constants.CPU_PINNING_ALL_XEN)) |
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class TestGetCommand(testutils.GanetiTestCase): |
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def testCommandExplicit(self): |
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"""Test the case when the command is given as class parameter explicitly.
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"""
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expected_cmd = "xl"
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hv = hv_xen.XenHypervisor(_cmd=constants.XEN_CMD_XL) |
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self.assertEqual(hv._GetCommand(None), expected_cmd) |
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def testCommandInvalid(self): |
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"""Test the case an invalid command is given as class parameter explicitly.
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"""
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hv = hv_xen.XenHypervisor(_cmd="invalidcommand")
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self.assertRaises(errors.ProgrammerError, hv._GetCommand, None) |
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def testCommandHvparams(self): |
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expected_cmd = "xl"
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test_hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL}
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hv = hv_xen.XenHypervisor() |
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self.assertEqual(hv._GetCommand(test_hvparams), expected_cmd)
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def testCommandHvparamsInvalid(self): |
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test_hvparams = {}
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hv = hv_xen.XenHypervisor() |
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self.assertRaises(errors.HypervisorError, hv._GetCommand, test_hvparams)
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def testCommandHvparamsCmdInvalid(self): |
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test_hvparams = {constants.HV_XEN_CMD: "invalidcommand"}
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hv = hv_xen.XenHypervisor() |
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self.assertRaises(errors.ProgrammerError, hv._GetCommand, test_hvparams)
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class TestParseInstanceList(testutils.GanetiTestCase): |
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def test(self): |
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data = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
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# Exclude node
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self.assertEqual(hv_xen._ParseInstanceList(data.splitlines(), False), []) |
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# Include node
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result = hv_xen._ParseInstanceList(data.splitlines(), True)
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self.assertEqual(len(result), 1) |
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self.assertEqual(len(result[0]), 6) |
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# Name
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self.assertEqual(result[0][0], hv_xen._DOM0_NAME) |
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# ID
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self.assertEqual(result[0][1], 0) |
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# Memory
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self.assertEqual(result[0][2], 1023) |
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# VCPUs
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self.assertEqual(result[0][3], 1) |
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# State
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self.assertEqual(result[0][4], "r-----") |
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# Time
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self.assertAlmostEqual(result[0][5], 121152.6) |
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def testWrongLineFormat(self): |
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tests = [ |
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["three fields only"],
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["name InvalidID 128 1 r----- 12345"],
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] |
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for lines in tests: |
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try:
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hv_xen._ParseInstanceList(["Header would be here"] + lines, False) |
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except errors.HypervisorError, err:
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self.assertTrue("Can't parse instance list" in str(err)) |
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else:
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self.fail("Exception was not raised") |
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class TestGetInstanceList(testutils.GanetiTestCase): |
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def _Fail(self): |
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return utils.RunResult(constants.EXIT_FAILURE, None, |
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"stdout", "stderr", None, |
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NotImplemented, NotImplemented) |
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def testTimeout(self): |
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fn = testutils.CallCounter(self._Fail)
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try:
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hv_xen._GetInstanceList(fn, False, _timeout=0.1) |
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except errors.HypervisorError, err:
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self.assertTrue("timeout exceeded" in str(err)) |
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else:
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self.fail("Exception was not raised") |
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self.assertTrue(fn.Count() < 10, |
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msg="'xm list' was called too many times")
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def _Success(self, stdout): |
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return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
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NotImplemented, NotImplemented) |
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def testSuccess(self): |
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data = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
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fn = testutils.CallCounter(compat.partial(self._Success, data))
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result = hv_xen._GetInstanceList(fn, True, _timeout=0.1) |
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self.assertEqual(len(result), 4) |
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self.assertEqual(map(compat.fst, result), [ |
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"Domain-0",
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"server01.example.com",
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"web3106215069.example.com",
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"testinstance.example.com",
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]) |
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self.assertEqual(fn.Count(), 1) |
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class TestParseNodeInfo(testutils.GanetiTestCase): |
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def testEmpty(self): |
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self.assertEqual(hv_xen._ParseNodeInfo(""), {}) |
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def testUnknownInput(self): |
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data = "\n".join([
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"foo bar",
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"something else goes",
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"here",
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]) |
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self.assertEqual(hv_xen._ParseNodeInfo(data), {})
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def testBasicInfo(self): |
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data = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
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result = hv_xen._ParseNodeInfo(data) |
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self.assertEqual(result, {
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"cpu_nodes": 1, |
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"cpu_sockets": 2, |
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"cpu_total": 4, |
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"hv_version": (4, 0), |
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"memory_free": 8004, |
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"memory_total": 16378, |
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}) |
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class TestMergeInstanceInfo(testutils.GanetiTestCase): |
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def testEmpty(self): |
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self.assertEqual(hv_xen._MergeInstanceInfo({}, []), {})
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def _FakeXmList(self, include_node): |
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return [
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(hv_xen._DOM0_NAME, NotImplemented, 4096, 7, NotImplemented, |
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NotImplemented),
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("inst1.example.com", NotImplemented, 2048, 4, NotImplemented, |
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NotImplemented),
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] |
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def testMissingNodeInfo(self): |
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instance_list = self._FakeXmList(True) |
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result = hv_xen._MergeInstanceInfo({}, instance_list)
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self.assertEqual(result, {
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"memory_dom0": 4096, |
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"cpu_dom0": 7, |
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}) |
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def testWithNodeInfo(self): |
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info = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
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instance_list = self._FakeXmList(True) |
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result = hv_xen._GetNodeInfo(info, instance_list) |
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self.assertEqual(result, {
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"cpu_nodes": 1, |
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"cpu_sockets": 2, |
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"cpu_total": 4, |
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"cpu_dom0": 7, |
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"hv_version": (4, 0), |
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"memory_dom0": 4096, |
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"memory_free": 8004, |
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"memory_hv": 2230, |
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"memory_total": 16378, |
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}) |
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class TestGetConfigFileDiskData(unittest.TestCase): |
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def testLetterCount(self): |
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self.assertEqual(len(hv_xen._DISK_LETTERS), 26) |
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def testNoDisks(self): |
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self.assertEqual(hv_xen._GetConfigFileDiskData([], "hd"), []) |
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def testManyDisks(self): |
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for offset in [0, 1, 10]: |
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disks = [(objects.Disk(dev_type=constants.DT_PLAIN), "/tmp/disk/%s" % idx)
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for idx in range(len(hv_xen._DISK_LETTERS) + offset)] |
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if offset == 0: |
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result = hv_xen._GetConfigFileDiskData(disks, "hd")
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self.assertEqual(result, [
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"'phy:/tmp/disk/%s,hd%s,r'" % (idx, string.ascii_lowercase[idx])
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for idx in range(len(hv_xen._DISK_LETTERS) + offset) |
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]) |
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else:
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try:
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hv_xen._GetConfigFileDiskData(disks, "hd")
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except errors.HypervisorError, err:
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self.assertEqual(str(err), "Too many disks") |
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else:
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self.fail("Exception was not raised") |
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def testTwoLvDisksWithMode(self): |
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disks = [ |
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(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDWR), |
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"/tmp/diskFirst"),
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(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDONLY), |
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"/tmp/diskLast"),
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] |
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result = hv_xen._GetConfigFileDiskData(disks, "hd")
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self.assertEqual(result, [
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"'phy:/tmp/diskFirst,hda,w'",
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"'phy:/tmp/diskLast,hdb,r'",
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]) |
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def testFileDisks(self): |
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disks = [ |
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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physical_id=[constants.FD_LOOP]), |
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"/tmp/diskFirst"),
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDONLY, |
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physical_id=[constants.FD_BLKTAP]), |
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"/tmp/diskTwo"),
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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physical_id=[constants.FD_LOOP]), |
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"/tmp/diskThree"),
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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physical_id=[constants.FD_BLKTAP]), |
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"/tmp/diskLast"),
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] |
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result = hv_xen._GetConfigFileDiskData(disks, "sd")
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self.assertEqual(result, [
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"'file:/tmp/diskFirst,sda,w'",
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"'tap:aio:/tmp/diskTwo,sdb,r'",
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"'file:/tmp/diskThree,sdc,w'",
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"'tap:aio:/tmp/diskLast,sdd,w'",
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]) |
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def testInvalidFileDisk(self): |
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disks = [ |
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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physical_id=["#unknown#"]),
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"/tmp/diskinvalid"),
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] |
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self.assertRaises(KeyError, hv_xen._GetConfigFileDiskData, disks, "sd") |
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class TestXenHypervisorRunXen(unittest.TestCase): |
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XEN_SUB_CMD = "help"
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def testCommandUnknown(self): |
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cmd = "#unknown command#"
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self.assertFalse(cmd in constants.KNOWN_XEN_COMMANDS) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=NotImplemented,
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_cmd=cmd) |
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self.assertRaises(errors.ProgrammerError, hv._RunXen, [], None) |
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def testCommandNoHvparams(self): |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=NotImplemented)
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hvparams = None
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self.assertRaises(errors.HypervisorError, hv._RunXen, [self.XEN_SUB_CMD], |
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hvparams) |
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def testCommandFromHvparams(self): |
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expected_xen_cmd = "xl"
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL}
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mock_run_cmd = mock.Mock() |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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hv._RunXen([self.XEN_SUB_CMD], hvparams=hvparams)
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mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_SUB_CMD])
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class TestXenHypervisorGetInstanceList(unittest.TestCase): |
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RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
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XEN_LIST = "list"
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def testNoHvparams(self): |
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expected_xen_cmd = "xm"
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mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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self.assertRaises(errors.HypervisorError, hv._GetInstanceList, True, None) |
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def testFromHvparams(self): |
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expected_xen_cmd = "xl"
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL}
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mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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hv._GetInstanceList(True, hvparams)
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mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST])
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class TestXenHypervisorListInstances(unittest.TestCase): |
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RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
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XEN_LIST = "list"
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def testNoHvparams(self): |
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expected_xen_cmd = "xm"
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mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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self.assertRaises(errors.HypervisorError, hv.ListInstances)
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def testHvparamsXl(self): |
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expected_xen_cmd = "xl"
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL}
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mock_run_cmd = mock.Mock( return_value=self.RESULT_OK )
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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hv.ListInstances(hvparams=hvparams) |
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mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST])
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class TestXenHypervisorCheckToolstack(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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self.cfg_name = "xen_config" |
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self.cfg_path = utils.PathJoin(self.tmpdir, self.cfg_name) |
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self.hv = hv_xen.XenHypervisor()
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
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def testBinaryNotFound(self): |
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RESULT_FAILED = utils.RunResult(1, None, "", "", "", None, None) |
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mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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result = hv._CheckToolstackBinary("xl")
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self.assertFalse(result)
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def testCheckToolstackXlConfigured(self): |
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RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
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mock_run_cmd = mock.Mock(return_value=RESULT_OK) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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result = hv._CheckToolstackXlConfigured() |
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self.assertTrue(result)
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|
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def testCheckToolstackXlNotConfigured(self): |
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RESULT_FAILED = utils.RunResult( |
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1, None, "", |
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"ERROR: A different toolstack (xm) have been selected!",
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"", None, None) |
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mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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result = hv._CheckToolstackXlConfigured() |
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self.assertFalse(result)
|
| 447 |
|
| 448 |
def testCheckToolstackXlFails(self): |
| 449 |
RESULT_FAILED = utils.RunResult( |
| 450 |
1, None, "", |
| 451 |
"ERROR: The pink bunny hid the binary.",
|
| 452 |
"", None, None) |
| 453 |
mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
| 454 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
| 455 |
_run_cmd_fn=mock_run_cmd) |
| 456 |
self.assertRaises(errors.HypervisorError, hv._CheckToolstackXlConfigured)
|
| 457 |
|
| 458 |
|
| 459 |
class TestXenHypervisorWriteConfigFile(unittest.TestCase): |
| 460 |
def setUp(self): |
| 461 |
self.tmpdir = tempfile.mkdtemp()
|
| 462 |
|
| 463 |
def tearDown(self): |
| 464 |
shutil.rmtree(self.tmpdir)
|
| 465 |
|
| 466 |
def testWriteError(self): |
| 467 |
cfgdir = utils.PathJoin(self.tmpdir, "foobar") |
| 468 |
|
| 469 |
hv = hv_xen.XenHypervisor(_cfgdir=cfgdir, |
| 470 |
_run_cmd_fn=NotImplemented,
|
| 471 |
_cmd=NotImplemented)
|
| 472 |
|
| 473 |
self.assertFalse(os.path.exists(cfgdir))
|
| 474 |
|
| 475 |
try:
|
| 476 |
hv._WriteConfigFile("name", "data") |
| 477 |
except errors.HypervisorError, err:
|
| 478 |
self.assertTrue(str(err).startswith("Cannot write Xen instance")) |
| 479 |
else:
|
| 480 |
self.fail("Exception was not raised") |
| 481 |
|
| 482 |
|
| 483 |
class TestXenHypervisorVerify(unittest.TestCase): |
| 484 |
|
| 485 |
def setUp(self): |
| 486 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
| 487 |
self._result_ok = utils.RunResult(0, None, output, "", "", None, None) |
| 488 |
|
| 489 |
def testVerify(self): |
| 490 |
hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL}
|
| 491 |
mock_run_cmd = mock.Mock(return_value=self._result_ok)
|
| 492 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
| 493 |
_run_cmd_fn=mock_run_cmd) |
| 494 |
hv._CheckToolstack = mock.Mock(return_value=True)
|
| 495 |
result = hv.Verify(hvparams) |
| 496 |
self.assertTrue(result is None) |
| 497 |
|
| 498 |
def testVerifyToolstackNotOk(self): |
| 499 |
hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL}
|
| 500 |
mock_run_cmd = mock.Mock(return_value=self._result_ok)
|
| 501 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
| 502 |
_run_cmd_fn=mock_run_cmd) |
| 503 |
hv._CheckToolstack = mock.Mock() |
| 504 |
hv._CheckToolstack.side_effect = errors.HypervisorError("foo")
|
| 505 |
result = hv.Verify(hvparams) |
| 506 |
self.assertTrue(result is not None) |
| 507 |
|
| 508 |
def testVerifyFailing(self): |
| 509 |
result_failed = utils.RunResult(1, None, "", "", "", None, None) |
| 510 |
mock_run_cmd = mock.Mock(return_value=result_failed) |
| 511 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
| 512 |
_run_cmd_fn=mock_run_cmd) |
| 513 |
hv._CheckToolstack = mock.Mock(return_value=True)
|
| 514 |
result = hv.Verify() |
| 515 |
self.assertTrue(result is not None) |
| 516 |
|
| 517 |
|
| 518 |
class _TestXenHypervisor(object): |
| 519 |
TARGET = NotImplemented
|
| 520 |
CMD = NotImplemented
|
| 521 |
HVNAME = NotImplemented
|
| 522 |
VALID_HVPARAMS = {constants.HV_XEN_CMD: constants.XEN_CMD_XL}
|
| 523 |
|
| 524 |
def setUp(self): |
| 525 |
super(_TestXenHypervisor, self).setUp() |
| 526 |
|
| 527 |
self.tmpdir = tempfile.mkdtemp()
|
| 528 |
|
| 529 |
self.vncpw = "".join(random.sample(string.ascii_letters, 10)) |
| 530 |
|
| 531 |
self.vncpw_path = utils.PathJoin(self.tmpdir, "vncpw") |
| 532 |
utils.WriteFile(self.vncpw_path, data=self.vncpw) |
| 533 |
|
| 534 |
def tearDown(self): |
| 535 |
super(_TestXenHypervisor, self).tearDown() |
| 536 |
|
| 537 |
shutil.rmtree(self.tmpdir)
|
| 538 |
|
| 539 |
def _GetHv(self, run_cmd=NotImplemented): |
| 540 |
return self.TARGET(_cfgdir=self.tmpdir, _run_cmd_fn=run_cmd, _cmd=self.CMD) |
| 541 |
|
| 542 |
def _SuccessCommand(self, stdout, cmd): |
| 543 |
self.assertEqual(cmd[0], self.CMD) |
| 544 |
|
| 545 |
return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
| 546 |
NotImplemented, NotImplemented) |
| 547 |
|
| 548 |
def _FailingCommand(self, cmd): |
| 549 |
self.assertEqual(cmd[0], self.CMD) |
| 550 |
|
| 551 |
return utils.RunResult(constants.EXIT_FAILURE, None, |
| 552 |
"", "This command failed", None, |
| 553 |
NotImplemented, NotImplemented) |
| 554 |
|
| 555 |
def _FakeTcpPing(self, expected, result, target, port, **kwargs): |
| 556 |
self.assertEqual((target, port), expected)
|
| 557 |
return result
|
| 558 |
|
| 559 |
def testReadingNonExistentConfigFile(self): |
| 560 |
hv = self._GetHv()
|
| 561 |
|
| 562 |
try:
|
| 563 |
hv._ReadConfigFile("inst15780.example.com")
|
| 564 |
except errors.HypervisorError, err:
|
| 565 |
self.assertTrue(str(err).startswith("Failed to load Xen config file:")) |
| 566 |
else:
|
| 567 |
self.fail("Exception was not raised") |
| 568 |
|
| 569 |
def testRemovingAutoConfigFile(self): |
| 570 |
name = "inst8206.example.com"
|
| 571 |
cfgfile = utils.PathJoin(self.tmpdir, name)
|
| 572 |
autodir = utils.PathJoin(self.tmpdir, "auto") |
| 573 |
autocfgfile = utils.PathJoin(autodir, name) |
| 574 |
|
| 575 |
os.mkdir(autodir) |
| 576 |
|
| 577 |
utils.WriteFile(autocfgfile, data="")
|
| 578 |
|
| 579 |
hv = self._GetHv()
|
| 580 |
|
| 581 |
self.assertTrue(os.path.isfile(autocfgfile))
|
| 582 |
hv._WriteConfigFile(name, "content")
|
| 583 |
self.assertFalse(os.path.exists(autocfgfile))
|
| 584 |
self.assertEqual(utils.ReadFile(cfgfile), "content") |
| 585 |
|
| 586 |
def _XenList(self, cmd): |
| 587 |
self.assertEqual(cmd, [self.CMD, "list"]) |
| 588 |
|
| 589 |
# TODO: Use actual data from "xl" command
|
| 590 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
| 591 |
|
| 592 |
return self._SuccessCommand(output, cmd) |
| 593 |
|
| 594 |
def testGetInstanceInfo(self): |
| 595 |
hv = self._GetHv(run_cmd=self._XenList) |
| 596 |
|
| 597 |
(name, instid, memory, vcpus, state, runtime) = \ |
| 598 |
hv.GetInstanceInfo("server01.example.com")
|
| 599 |
|
| 600 |
self.assertEqual(name, "server01.example.com") |
| 601 |
self.assertEqual(instid, 1) |
| 602 |
self.assertEqual(memory, 1024) |
| 603 |
self.assertEqual(vcpus, 1) |
| 604 |
self.assertEqual(state, "-b----") |
| 605 |
self.assertAlmostEqual(runtime, 167643.2) |
| 606 |
|
| 607 |
def testGetInstanceInfoDom0(self): |
| 608 |
hv = self._GetHv(run_cmd=self._XenList) |
| 609 |
|
| 610 |
# TODO: Not sure if this is actually used anywhere (can't find it), but the
|
| 611 |
# code supports querying for Dom0
|
| 612 |
(name, instid, memory, vcpus, state, runtime) = \ |
| 613 |
hv.GetInstanceInfo(hv_xen._DOM0_NAME) |
| 614 |
|
| 615 |
self.assertEqual(name, "Domain-0") |
| 616 |
self.assertEqual(instid, 0) |
| 617 |
self.assertEqual(memory, 1023) |
| 618 |
self.assertEqual(vcpus, 1) |
| 619 |
self.assertEqual(state, "r-----") |
| 620 |
self.assertAlmostEqual(runtime, 154706.1) |
| 621 |
|
| 622 |
def testGetInstanceInfoUnknown(self): |
| 623 |
hv = self._GetHv(run_cmd=self._XenList) |
| 624 |
|
| 625 |
result = hv.GetInstanceInfo("unknown.example.com")
|
| 626 |
self.assertTrue(result is None) |
| 627 |
|
| 628 |
def testGetAllInstancesInfo(self): |
| 629 |
hv = self._GetHv(run_cmd=self._XenList) |
| 630 |
|
| 631 |
result = hv.GetAllInstancesInfo() |
| 632 |
|
| 633 |
self.assertEqual(map(compat.fst, result), [ |
| 634 |
"server01.example.com",
|
| 635 |
"web3106215069.example.com",
|
| 636 |
"testinstance.example.com",
|
| 637 |
]) |
| 638 |
|
| 639 |
def testListInstances(self): |
| 640 |
hv = self._GetHv(run_cmd=self._XenList) |
| 641 |
|
| 642 |
self.assertEqual(hv.ListInstances(), [
|
| 643 |
"server01.example.com",
|
| 644 |
"web3106215069.example.com",
|
| 645 |
"testinstance.example.com",
|
| 646 |
]) |
| 647 |
|
| 648 |
def _StartInstanceCommand(self, inst, paused, failcreate, cmd): |
| 649 |
if cmd == [self.CMD, "info"]: |
| 650 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
| 651 |
elif cmd == [self.CMD, "list"]: |
| 652 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
|
| 653 |
elif cmd[:2] == [self.CMD, "create"]: |
| 654 |
args = cmd[2:]
|
| 655 |
cfgfile = utils.PathJoin(self.tmpdir, inst.name)
|
| 656 |
|
| 657 |
if paused:
|
| 658 |
self.assertEqual(args, ["-p", cfgfile]) |
| 659 |
else:
|
| 660 |
self.assertEqual(args, [cfgfile])
|
| 661 |
|
| 662 |
if failcreate:
|
| 663 |
return self._FailingCommand(cmd) |
| 664 |
|
| 665 |
output = ""
|
| 666 |
else:
|
| 667 |
self.fail("Unhandled command: %s" % (cmd, )) |
| 668 |
|
| 669 |
return self._SuccessCommand(output, cmd) |
| 670 |
|
| 671 |
def _MakeInstance(self): |
| 672 |
# Copy default parameters
|
| 673 |
bep = objects.FillDict(constants.BEC_DEFAULTS, {})
|
| 674 |
hvp = objects.FillDict(constants.HVC_DEFAULTS[self.HVNAME], {})
|
| 675 |
|
| 676 |
# Override default VNC password file path
|
| 677 |
if constants.HV_VNC_PASSWORD_FILE in hvp: |
| 678 |
hvp[constants.HV_VNC_PASSWORD_FILE] = self.vncpw_path
|
| 679 |
|
| 680 |
disks = [ |
| 681 |
(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDWR), |
| 682 |
utils.PathJoin(self.tmpdir, "disk0")), |
| 683 |
(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDONLY), |
| 684 |
utils.PathJoin(self.tmpdir, "disk1")), |
| 685 |
] |
| 686 |
|
| 687 |
inst = objects.Instance(name="server01.example.com",
|
| 688 |
hvparams=hvp, beparams=bep, |
| 689 |
osparams={}, nics=[], os="deb1",
|
| 690 |
disks=map(compat.fst, disks))
|
| 691 |
inst.UpgradeConfig() |
| 692 |
|
| 693 |
return (inst, disks)
|
| 694 |
|
| 695 |
def testStartInstance(self): |
| 696 |
(inst, disks) = self._MakeInstance()
|
| 697 |
pathutils.LOG_XEN_DIR = self.tmpdir
|
| 698 |
|
| 699 |
for failcreate in [False, True]: |
| 700 |
for paused in [False, True]: |
| 701 |
run_cmd = compat.partial(self._StartInstanceCommand,
|
| 702 |
inst, paused, failcreate) |
| 703 |
|
| 704 |
hv = self._GetHv(run_cmd=run_cmd)
|
| 705 |
|
| 706 |
# Ensure instance is not listed
|
| 707 |
self.assertTrue(inst.name not in hv.ListInstances()) |
| 708 |
|
| 709 |
# Remove configuration
|
| 710 |
cfgfile = utils.PathJoin(self.tmpdir, inst.name)
|
| 711 |
utils.RemoveFile(cfgfile) |
| 712 |
|
| 713 |
if failcreate:
|
| 714 |
self.assertRaises(errors.HypervisorError, hv.StartInstance,
|
| 715 |
inst, disks, paused) |
| 716 |
# Check whether a stale config file is left behind
|
| 717 |
self.assertFalse(os.path.exists(cfgfile))
|
| 718 |
else:
|
| 719 |
hv.StartInstance(inst, disks, paused) |
| 720 |
# Check if configuration was updated
|
| 721 |
lines = utils.ReadFile(cfgfile).splitlines() |
| 722 |
|
| 723 |
if constants.HV_VNC_PASSWORD_FILE in inst.hvparams: |
| 724 |
self.assertTrue(("vncpasswd = '%s'" % self.vncpw) in lines) |
| 725 |
else:
|
| 726 |
extra = inst.hvparams[constants.HV_KERNEL_ARGS] |
| 727 |
self.assertTrue(("extra = '%s'" % extra) in lines) |
| 728 |
|
| 729 |
def _StopInstanceCommand(self, instance_name, force, fail, cmd): |
| 730 |
if ((force and cmd[:2] == [self.CMD, "destroy"]) or |
| 731 |
(not force and cmd[:2] == [self.CMD, "shutdown"])): |
| 732 |
self.assertEqual(cmd[2:], [instance_name]) |
| 733 |
output = ""
|
| 734 |
else:
|
| 735 |
self.fail("Unhandled command: %s" % (cmd, )) |
| 736 |
|
| 737 |
if fail:
|
| 738 |
# Simulate a failing command
|
| 739 |
return self._FailingCommand(cmd) |
| 740 |
else:
|
| 741 |
return self._SuccessCommand(output, cmd) |
| 742 |
|
| 743 |
def testStopInstance(self): |
| 744 |
name = "inst4284.example.com"
|
| 745 |
cfgfile = utils.PathJoin(self.tmpdir, name)
|
| 746 |
cfgdata = "config file content\n"
|
| 747 |
|
| 748 |
for force in [False, True]: |
| 749 |
for fail in [False, True]: |
| 750 |
utils.WriteFile(cfgfile, data=cfgdata) |
| 751 |
|
| 752 |
run_cmd = compat.partial(self._StopInstanceCommand, name, force, fail)
|
| 753 |
|
| 754 |
hv = self._GetHv(run_cmd=run_cmd)
|
| 755 |
|
| 756 |
self.assertTrue(os.path.isfile(cfgfile))
|
| 757 |
|
| 758 |
if fail:
|
| 759 |
try:
|
| 760 |
hv._StopInstance(name, force, None)
|
| 761 |
except errors.HypervisorError, err:
|
| 762 |
self.assertTrue(str(err).startswith("Failed to stop instance")) |
| 763 |
else:
|
| 764 |
self.fail("Exception was not raised") |
| 765 |
self.assertEqual(utils.ReadFile(cfgfile), cfgdata,
|
| 766 |
msg=("Configuration was removed when stopping"
|
| 767 |
" instance failed"))
|
| 768 |
else:
|
| 769 |
hv._StopInstance(name, force, None)
|
| 770 |
self.assertFalse(os.path.exists(cfgfile))
|
| 771 |
|
| 772 |
def _MigrateNonRunningInstCmd(self, cmd): |
| 773 |
if cmd == [self.CMD, "list"]: |
| 774 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
|
| 775 |
else:
|
| 776 |
self.fail("Unhandled command: %s" % (cmd, )) |
| 777 |
|
| 778 |
return self._SuccessCommand(output, cmd) |
| 779 |
|
| 780 |
def testMigrateInstanceNotRunning(self): |
| 781 |
name = "nonexistinginstance.example.com"
|
| 782 |
target = constants.IP4_ADDRESS_LOCALHOST |
| 783 |
port = 14618
|
| 784 |
|
| 785 |
hv = self._GetHv(run_cmd=self._MigrateNonRunningInstCmd) |
| 786 |
|
| 787 |
for live in [False, True]: |
| 788 |
try:
|
| 789 |
hv._MigrateInstance(NotImplemented, name, target, port, live,
|
| 790 |
self.VALID_HVPARAMS, _ping_fn=NotImplemented) |
| 791 |
except errors.HypervisorError, err:
|
| 792 |
self.assertEqual(str(err), "Instance not running, cannot migrate") |
| 793 |
else:
|
| 794 |
self.fail("Exception was not raised") |
| 795 |
|
| 796 |
def _MigrateInstTargetUnreachCmd(self, cmd): |
| 797 |
if cmd == [self.CMD, "list"]: |
| 798 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
| 799 |
else:
|
| 800 |
self.fail("Unhandled command: %s" % (cmd, )) |
| 801 |
|
| 802 |
return self._SuccessCommand(output, cmd) |
| 803 |
|
| 804 |
def testMigrateTargetUnreachable(self): |
| 805 |
name = "server01.example.com"
|
| 806 |
target = constants.IP4_ADDRESS_LOCALHOST |
| 807 |
port = 28349
|
| 808 |
|
| 809 |
hv = self._GetHv(run_cmd=self._MigrateInstTargetUnreachCmd) |
| 810 |
hvparams = {constants.HV_XEN_CMD: self.CMD}
|
| 811 |
|
| 812 |
for live in [False, True]: |
| 813 |
if self.CMD == constants.XEN_CMD_XL: |
| 814 |
# TODO: Detect unreachable targets
|
| 815 |
pass
|
| 816 |
else:
|
| 817 |
try:
|
| 818 |
hv._MigrateInstance(NotImplemented, name, target, port, live,
|
| 819 |
hvparams, |
| 820 |
_ping_fn=compat.partial(self._FakeTcpPing,
|
| 821 |
(target, port), False))
|
| 822 |
except errors.HypervisorError, err:
|
| 823 |
wanted = "Remote host %s not" % target
|
| 824 |
self.assertTrue(str(err).startswith(wanted)) |
| 825 |
else:
|
| 826 |
self.fail("Exception was not raised") |
| 827 |
|
| 828 |
def _MigrateInstanceCmd(self, cluster_name, instance_name, target, port, |
| 829 |
live, fail, cmd): |
| 830 |
if cmd == [self.CMD, "list"]: |
| 831 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
| 832 |
elif cmd[:2] == [self.CMD, "migrate"]: |
| 833 |
if self.CMD == constants.XEN_CMD_XM: |
| 834 |
args = ["-p", str(port)] |
| 835 |
|
| 836 |
if live:
|
| 837 |
args.append("-l")
|
| 838 |
|
| 839 |
elif self.CMD == constants.XEN_CMD_XL: |
| 840 |
args = [ |
| 841 |
"-s", constants.XL_SSH_CMD % cluster_name,
|
| 842 |
"-C", utils.PathJoin(self.tmpdir, instance_name), |
| 843 |
] |
| 844 |
|
| 845 |
else:
|
| 846 |
self.fail("Unknown Xen command '%s'" % self.CMD) |
| 847 |
|
| 848 |
args.extend([instance_name, target]) |
| 849 |
self.assertEqual(cmd[2:], args) |
| 850 |
|
| 851 |
if fail:
|
| 852 |
return self._FailingCommand(cmd) |
| 853 |
|
| 854 |
output = ""
|
| 855 |
else:
|
| 856 |
self.fail("Unhandled command: %s" % (cmd, )) |
| 857 |
|
| 858 |
return self._SuccessCommand(output, cmd) |
| 859 |
|
| 860 |
def testMigrateInstance(self): |
| 861 |
clustername = "cluster.example.com"
|
| 862 |
instname = "server01.example.com"
|
| 863 |
target = constants.IP4_ADDRESS_LOCALHOST |
| 864 |
port = 22364
|
| 865 |
|
| 866 |
hvparams = {constants.HV_XEN_CMD: self.CMD}
|
| 867 |
|
| 868 |
for live in [False, True]: |
| 869 |
for fail in [False, True]: |
| 870 |
ping_fn = \ |
| 871 |
testutils.CallCounter(compat.partial(self._FakeTcpPing,
|
| 872 |
(target, port), True))
|
| 873 |
|
| 874 |
run_cmd = \ |
| 875 |
compat.partial(self._MigrateInstanceCmd,
|
| 876 |
clustername, instname, target, port, live, |
| 877 |
fail) |
| 878 |
|
| 879 |
hv = self._GetHv(run_cmd=run_cmd)
|
| 880 |
|
| 881 |
if fail:
|
| 882 |
try:
|
| 883 |
hv._MigrateInstance(clustername, instname, target, port, live, |
| 884 |
hvparams, _ping_fn=ping_fn) |
| 885 |
except errors.HypervisorError, err:
|
| 886 |
self.assertTrue(str(err).startswith("Failed to migrate instance")) |
| 887 |
else:
|
| 888 |
self.fail("Exception was not raised") |
| 889 |
else:
|
| 890 |
hv._MigrateInstance(clustername, instname, target, port, live, |
| 891 |
hvparams, _ping_fn=ping_fn) |
| 892 |
|
| 893 |
if self.CMD == constants.XEN_CMD_XM: |
| 894 |
expected_pings = 1
|
| 895 |
else:
|
| 896 |
expected_pings = 0
|
| 897 |
|
| 898 |
self.assertEqual(ping_fn.Count(), expected_pings)
|
| 899 |
|
| 900 |
def _GetNodeInfoCmd(self, fail, cmd): |
| 901 |
if cmd == [self.CMD, "info"]: |
| 902 |
if fail:
|
| 903 |
return self._FailingCommand(cmd) |
| 904 |
else:
|
| 905 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
| 906 |
elif cmd == [self.CMD, "list"]: |
| 907 |
if fail:
|
| 908 |
self.fail("'xm list' shouldn't be called when 'xm info' failed") |
| 909 |
else:
|
| 910 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
| 911 |
else:
|
| 912 |
self.fail("Unhandled command: %s" % (cmd, )) |
| 913 |
|
| 914 |
return self._SuccessCommand(output, cmd) |
| 915 |
|
| 916 |
def testGetNodeInfo(self): |
| 917 |
run_cmd = compat.partial(self._GetNodeInfoCmd, False) |
| 918 |
hv = self._GetHv(run_cmd=run_cmd)
|
| 919 |
result = hv.GetNodeInfo() |
| 920 |
|
| 921 |
self.assertEqual(result["hv_version"], (4, 0)) |
| 922 |
self.assertEqual(result["memory_free"], 8004) |
| 923 |
|
| 924 |
def testGetNodeInfoFailing(self): |
| 925 |
run_cmd = compat.partial(self._GetNodeInfoCmd, True) |
| 926 |
hv = self._GetHv(run_cmd=run_cmd)
|
| 927 |
self.assertTrue(hv.GetNodeInfo() is None) |
| 928 |
|
| 929 |
|
| 930 |
def _MakeTestClass(cls, cmd): |
| 931 |
"""Makes a class for testing.
|
| 932 |
|
| 933 |
The returned class has structure as shown in the following pseudo code:
|
| 934 |
|
| 935 |
class Test{cls.__name__}{cmd}(_TestXenHypervisor, unittest.TestCase):
|
| 936 |
TARGET = {cls}
|
| 937 |
CMD = {cmd}
|
| 938 |
HVNAME = {Hypervisor name retrieved using class}
|
| 939 |
|
| 940 |
@type cls: class
|
| 941 |
@param cls: Hypervisor class to be tested
|
| 942 |
@type cmd: string
|
| 943 |
@param cmd: Hypervisor command
|
| 944 |
@rtype: tuple
|
| 945 |
@return: Class name and class object (not instance)
|
| 946 |
|
| 947 |
"""
|
| 948 |
name = "Test%sCmd%s" % (cls.__name__, cmd.title())
|
| 949 |
bases = (_TestXenHypervisor, unittest.TestCase) |
| 950 |
hvname = HVCLASS_TO_HVNAME[cls] |
| 951 |
|
| 952 |
return (name, type(name, bases, dict(TARGET=cls, CMD=cmd, HVNAME=hvname))) |
| 953 |
|
| 954 |
|
| 955 |
# Create test classes programmatically instead of manually to reduce the risk
|
| 956 |
# of forgetting some combinations
|
| 957 |
for cls in [hv_xen.XenPvmHypervisor, hv_xen.XenHvmHypervisor]: |
| 958 |
for cmd in constants.KNOWN_XEN_COMMANDS: |
| 959 |
(name, testcls) = _MakeTestClass(cls, cmd) |
| 960 |
|
| 961 |
assert name not in locals() |
| 962 |
|
| 963 |
locals()[name] = testcls
|
| 964 |
|
| 965 |
|
| 966 |
if __name__ == "__main__": |
| 967 |
testutils.GanetiTestProgram() |