| #!/usr/bin/python |
| # |
| |
| # Copyright (C) 2011, 2013 Google Inc. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # 1. Redistributions of source code must retain the above copyright notice, |
| # this list of conditions and the following disclaimer. |
| # |
| # 2. Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| # IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
| # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| # PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| |
| """Script for testing ganeti.hypervisor.hv_xen""" |
| |
| import string # pylint: disable=W0402 |
| import unittest |
| import tempfile |
| import shutil |
| import random |
| import os |
| import mock |
| |
| from ganeti import constants |
| from ganeti import objects |
| from ganeti import pathutils |
| from ganeti import hypervisor |
| from ganeti import utils |
| from ganeti import errors |
| from ganeti import compat |
| |
| from ganeti.hypervisor import hv_base |
| from ganeti.hypervisor import hv_xen |
| |
| import testutils |
| |
| |
| # Map from hypervisor class to hypervisor name |
| HVCLASS_TO_HVNAME = utils.InvertDict(hypervisor._HYPERVISOR_MAP) |
| |
| |
| class TestConsole(unittest.TestCase): |
| def test(self): |
| hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
| for cls in [hv_xen.XenPvmHypervisor(), hv_xen.XenHvmHypervisor()]: |
| instance = objects.Instance(name="xen.example.com", |
| primary_node="node24828-uuid") |
| node = objects.Node(name="node24828", uuid="node24828-uuid", |
| ndparams={}) |
| group = objects.NodeGroup(name="group52341", ndparams={}) |
| cons = cls.GetInstanceConsole(instance, node, group, hvparams, {}) |
| self.assertEqual(cons.Validate(), None) |
| self.assertEqual(cons.kind, constants.CONS_SSH) |
| self.assertEqual(cons.host, node.name) |
| self.assertEqual(cons.command[-1], instance.name) |
| |
| |
| class TestCreateConfigCpus(unittest.TestCase): |
| def testEmpty(self): |
| for cpu_mask in [None, ""]: |
| self.assertEqual(hv_xen._CreateConfigCpus(cpu_mask), |
| "cpus = [ ]") |
| |
| def testAll(self): |
| self.assertEqual(hv_xen._CreateConfigCpus(constants.CPU_PINNING_ALL), |
| None) |
| |
| def testOne(self): |
| self.assertEqual(hv_xen._CreateConfigCpus("9"), "cpu = \"9\"") |
| |
| def testMultiple(self): |
| self.assertEqual(hv_xen._CreateConfigCpus("0-2,4,5-5:3:all"), |
| ("cpus = [ \"0,1,2,4,5\", \"3\", \"%s\" ]" % |
| constants.CPU_PINNING_ALL_XEN)) |
| |
| |
| class TestGetCommand(testutils.GanetiTestCase): |
| def testCommandExplicit(self): |
| """Test the case when the command is given as class parameter explicitly. |
| |
| """ |
| expected_cmd = "xl" |
| hv = hv_xen.XenHypervisor(_cmd=constants.XEN_CMD_XL) |
| self.assertEqual(hv._GetCommand(None), expected_cmd) |
| |
| def testCommandInvalid(self): |
| """Test the case an invalid command is given as class parameter explicitly. |
| |
| """ |
| hv = hv_xen.XenHypervisor(_cmd="invalidcommand") |
| self.assertRaises(errors.ProgrammerError, hv._GetCommand, None) |
| |
| def testCommandHvparams(self): |
| expected_cmd = "xl" |
| test_hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
| hv = hv_xen.XenHypervisor() |
| self.assertEqual(hv._GetCommand(test_hvparams), expected_cmd) |
| |
| def testCommandHvparamsInvalid(self): |
| test_hvparams = {} |
| hv = hv_xen.XenHypervisor() |
| self.assertRaises(errors.HypervisorError, hv._GetCommand, test_hvparams) |
| |
| def testCommandHvparamsCmdInvalid(self): |
| test_hvparams = {constants.HV_XEN_CMD: "invalidcommand"} |
| hv = hv_xen.XenHypervisor() |
| self.assertRaises(errors.ProgrammerError, hv._GetCommand, test_hvparams) |
| |
| |
| class TestParseInstanceList(testutils.GanetiTestCase): |
| def test(self): |
| data = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt") |
| |
| # Exclude node |
| self.assertEqual(hv_xen._ParseInstanceList(data.splitlines(), False), []) |
| |
| # Include node |
| result = hv_xen._ParseInstanceList(data.splitlines(), True) |
| self.assertEqual(len(result), 1) |
| self.assertEqual(len(result[0]), 6) |
| |
| # Name |
| self.assertEqual(result[0][0], hv_xen._DOM0_NAME) |
| |
| # ID |
| self.assertEqual(result[0][1], 0) |
| |
| # Memory |
| self.assertEqual(result[0][2], 1023) |
| |
| # VCPUs |
| self.assertEqual(result[0][3], 1) |
| |
| # State |
| self.assertEqual(result[0][4], hv_base.HvInstanceState.RUNNING) |
| |
| # Time |
| self.assertAlmostEqual(result[0][5], 121152.6) |
| |
| def testWrongLineFormat(self): |
| tests = [ |
| ["three fields only"], |
| ["name InvalidID 128 1 r----- 12345"], |
| ] |
| |
| for lines in tests: |
| try: |
| hv_xen._ParseInstanceList(["Header would be here"] + lines, False) |
| except errors.HypervisorError, err: |
| self.assertTrue("Can't parse instance list" in str(err)) |
| else: |
| self.fail("Exception was not raised") |
| |
| |
| class TestInstanceStateParsing(unittest.TestCase): |
| def testRunningStates(self): |
| states = [ |
| "r-----", |
| "r-p---", |
| "rb----", |
| "rbp---", |
| "-b----", |
| "-bp---", |
| "-----d", |
| "--p--d", |
| "------", |
| "--p---", |
| "r--ss-", |
| "r-pss-", |
| "rb-ss-", |
| "rbpss-", |
| "-b-ss-", |
| "-bpss-", |
| "---ss-", |
| "r--sr-", |
| "r-psr-", |
| "rb-sr-", |
| "rbpsr-", |
| "-b-sr-", |
| "-bpsr-", |
| "---sr-", |
| ] |
| for state in states: |
| self.assertEqual(hv_xen._XenToHypervisorInstanceState(state), |
| hv_base.HvInstanceState.RUNNING) |
| |
| def testShutdownStates(self): |
| states = [ |
| "---s--", |
| "--ps--", |
| "---s-d", |
| "--ps-d", |
| ] |
| for state in states: |
| self.assertEqual(hv_xen._XenToHypervisorInstanceState(state), |
| hv_base.HvInstanceState.SHUTDOWN) |
| |
| def testCrashingStates(self): |
| states = [ |
| "--psc-", |
| "---sc-", |
| "---scd", |
| "--p-c-", |
| "----c-", |
| "----cd", |
| ] |
| for state in states: |
| self.assertRaises(hv_xen._InstanceCrashed, |
| hv_xen._XenToHypervisorInstanceState, state) |
| |
| |
| class TestGetInstanceList(testutils.GanetiTestCase): |
| def _Fail(self): |
| return utils.RunResult(constants.EXIT_FAILURE, None, |
| "stdout", "stderr", None, |
| NotImplemented, NotImplemented) |
| |
| def testTimeout(self): |
| fn = testutils.CallCounter(self._Fail) |
| try: |
| hv_xen._GetRunningInstanceList(fn, False, delays=(0.02, 1.0, 0.03), |
| timeout=0.1) |
| except errors.HypervisorError, err: |
| self.assertTrue("timeout exceeded" in str(err)) |
| else: |
| self.fail("Exception was not raised") |
| |
| self.assertTrue(fn.Count() < 10, |
| msg="'xm list' was called too many times") |
| |
| def _Success(self, stdout): |
| return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
| NotImplemented, NotImplemented) |
| |
| def testSuccess(self): |
| data = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt") |
| |
| fn = testutils.CallCounter(compat.partial(self._Success, data)) |
| |
| result = hv_xen._GetRunningInstanceList(fn, True, delays=(0.02, 1.0, 0.03), |
| timeout=0.1) |
| |
| self.assertEqual(len(result), 4) |
| |
| self.assertEqual(map(compat.fst, result), [ |
| "Domain-0", |
| "server01.example.com", |
| "web3106215069.example.com", |
| "testinstance.example.com", |
| ]) |
| |
| self.assertEqual(fn.Count(), 1) |
| |
| def testOmitCrashed(self): |
| data = testutils.ReadTestData("xen-xl-list-4.4-crashed-instances.txt") |
| |
| fn = testutils.CallCounter(compat.partial(self._Success, data)) |
| |
| result = hv_xen._GetAllInstanceList(fn, True, delays=(0.02, 1.0, 0.03), |
| timeout=0.1) |
| |
| self.assertEqual(len(result), 2) |
| |
| self.assertEqual(map(compat.fst, result), [ |
| "Domain-0", |
| "server01.example.com", |
| ]) |
| |
| self.assertEqual(fn.Count(), 1) |
| |
| |
| class TestParseNodeInfo(testutils.GanetiTestCase): |
| def testEmpty(self): |
| self.assertEqual(hv_xen._ParseNodeInfo(""), {}) |
| |
| def testUnknownInput(self): |
| data = "\n".join([ |
| "foo bar", |
| "something else goes", |
| "here", |
| ]) |
| self.assertEqual(hv_xen._ParseNodeInfo(data), {}) |
| |
| def testBasicInfo(self): |
| data = testutils.ReadTestData("xen-xm-info-4.0.1.txt") |
| result = hv_xen._ParseNodeInfo(data) |
| self.assertEqual(result, { |
| "cpu_nodes": 1, |
| "cpu_sockets": 2, |
| "cpu_total": 4, |
| "hv_version": (4, 0), |
| "memory_free": 8004, |
| "memory_total": 16378, |
| }) |
| |
| |
| class TestMergeInstanceInfo(testutils.GanetiTestCase): |
| def testEmpty(self): |
| self.assertEqual(hv_xen._MergeInstanceInfo({}, []), {}) |
| |
| def _FakeXmList(self, include_node): |
| return [ |
| (hv_xen._DOM0_NAME, NotImplemented, 4096, 7, NotImplemented, |
| NotImplemented), |
| ("inst1.example.com", NotImplemented, 2048, 4, NotImplemented, |
| NotImplemented), |
| ] |
| |
| def testMissingNodeInfo(self): |
| instance_list = self._FakeXmList(True) |
| result = hv_xen._MergeInstanceInfo({}, instance_list) |
| self.assertEqual(result, { |
| "memory_dom0": 4096, |
| "cpu_dom0": 7, |
| }) |
| |
| def testWithNodeInfo(self): |
| info = testutils.ReadTestData("xen-xm-info-4.0.1.txt") |
| instance_list = self._FakeXmList(True) |
| result = hv_xen._GetNodeInfo(info, instance_list) |
| self.assertEqual(result, { |
| "cpu_nodes": 1, |
| "cpu_sockets": 2, |
| "cpu_total": 4, |
| "cpu_dom0": 7, |
| "hv_version": (4, 0), |
| "memory_dom0": 4096, |
| "memory_free": 8004, |
| "memory_hv": 2230, |
| "memory_total": 16378, |
| }) |
| |
| |
| class TestGetConfigFileDiskData(unittest.TestCase): |
| def testLetterCount(self): |
| self.assertEqual(len(hv_xen._DISK_LETTERS), 26) |
| |
| def testNoDisks(self): |
| self.assertEqual(hv_xen._GetConfigFileDiskData([], "hd"), []) |
| |
| def testManyDisks(self): |
| for offset in [0, 1, 10]: |
| disks = [(objects.Disk(dev_type=constants.DT_PLAIN), |
| "/tmp/disk/%s" % idx, |
| NotImplemented) |
| for idx in range(len(hv_xen._DISK_LETTERS) + offset)] |
| |
| if offset == 0: |
| result = hv_xen._GetConfigFileDiskData(disks, "hd") |
| self.assertEqual(result, [ |
| "'phy:/tmp/disk/%s,hd%s,r'" % (idx, string.ascii_lowercase[idx]) |
| for idx in range(len(hv_xen._DISK_LETTERS) + offset) |
| ]) |
| else: |
| try: |
| hv_xen._GetConfigFileDiskData(disks, "hd") |
| except errors.HypervisorError, err: |
| self.assertEqual(str(err), "Too many disks") |
| else: |
| self.fail("Exception was not raised") |
| |
| def testTwoLvDisksWithMode(self): |
| disks = [ |
| (objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDWR), |
| "/tmp/diskFirst", |
| NotImplemented), |
| (objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDONLY), |
| "/tmp/diskLast", |
| NotImplemented), |
| ] |
| |
| result = hv_xen._GetConfigFileDiskData(disks, "hd") |
| self.assertEqual(result, [ |
| "'phy:/tmp/diskFirst,hda,w'", |
| "'phy:/tmp/diskLast,hdb,r'", |
| ]) |
| |
| def testFileDisks(self): |
| disks = [ |
| (objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
| logical_id=[constants.FD_LOOP]), |
| "/tmp/diskFirst", |
| NotImplemented), |
| (objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDONLY, |
| logical_id=[constants.FD_BLKTAP]), |
| "/tmp/diskTwo", |
| NotImplemented), |
| (objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
| logical_id=[constants.FD_LOOP]), |
| "/tmp/diskThree", |
| NotImplemented), |
| (objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDONLY, |
| logical_id=[constants.FD_BLKTAP2]), |
| "/tmp/diskFour", |
| NotImplemented), |
| (objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
| logical_id=[constants.FD_BLKTAP]), |
| "/tmp/diskLast", |
| NotImplemented), |
| ] |
| |
| result = hv_xen._GetConfigFileDiskData(disks, "sd") |
| self.assertEqual(result, [ |
| "'file:/tmp/diskFirst,sda,w'", |
| "'tap:aio:/tmp/diskTwo,sdb,r'", |
| "'file:/tmp/diskThree,sdc,w'", |
| "'tap2:tapdisk:aio:/tmp/diskFour,sdd,r'", |
| "'tap:aio:/tmp/diskLast,sde,w'", |
| ]) |
| |
| def testInvalidFileDisk(self): |
| disks = [ |
| (objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
| logical_id=["#unknown#"]), |
| "/tmp/diskinvalid", |
| NotImplemented), |
| ] |
| |
| self.assertRaises(KeyError, hv_xen._GetConfigFileDiskData, disks, "sd") |
| |
| |
| class TestXenHypervisorRunXen(unittest.TestCase): |
| |
| XEN_SUB_CMD = "help" |
| |
| def testCommandUnknown(self): |
| cmd = "#unknown command#" |
| self.assertFalse(cmd in constants.KNOWN_XEN_COMMANDS) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=NotImplemented, |
| _cmd=cmd) |
| self.assertRaises(errors.ProgrammerError, hv._RunXen, [], None) |
| |
| def testCommandNoHvparams(self): |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=NotImplemented) |
| hvparams = None |
| self.assertRaises(errors.HypervisorError, hv._RunXen, [self.XEN_SUB_CMD], |
| hvparams) |
| |
| def testCommandFromHvparams(self): |
| expected_xen_cmd = "xl" |
| hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
| mock_run_cmd = mock.Mock() |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| hv._RunXen([self.XEN_SUB_CMD], hvparams=hvparams) |
| mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_SUB_CMD]) |
| |
| |
| class TestXenHypervisorGetInstanceList(unittest.TestCase): |
| |
| RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
| XEN_LIST = "list" |
| |
| def testNoHvparams(self): |
| expected_xen_cmd = "xm" |
| mock_run_cmd = mock.Mock(return_value=self.RESULT_OK) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| self.assertRaises(errors.HypervisorError, hv._GetInstanceList, True, None) |
| |
| def testFromHvparams(self): |
| expected_xen_cmd = "xl" |
| hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
| mock_run_cmd = mock.Mock(return_value=self.RESULT_OK) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| hv._GetInstanceList(True, hvparams) |
| mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST]) |
| |
| |
| class TestXenHypervisorListInstances(unittest.TestCase): |
| |
| RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
| XEN_LIST = "list" |
| |
| def testNoHvparams(self): |
| expected_xen_cmd = "xm" |
| mock_run_cmd = mock.Mock(return_value=self.RESULT_OK) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| self.assertRaises(errors.HypervisorError, hv.ListInstances) |
| |
| def testHvparamsXl(self): |
| expected_xen_cmd = "xl" |
| hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
| mock_run_cmd = mock.Mock(return_value=self.RESULT_OK) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| hv.ListInstances(hvparams=hvparams) |
| mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST]) |
| |
| |
| class TestXenHypervisorCheckToolstack(unittest.TestCase): |
| |
| def setUp(self): |
| self.tmpdir = tempfile.mkdtemp() |
| self.cfg_name = "xen_config" |
| self.cfg_path = utils.PathJoin(self.tmpdir, self.cfg_name) |
| self.hv = hv_xen.XenHypervisor() |
| |
| def tearDown(self): |
| shutil.rmtree(self.tmpdir) |
| |
| def testBinaryNotFound(self): |
| RESULT_FAILED = utils.RunResult(1, None, "", "", "", None, None) |
| mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| result = hv._CheckToolstackBinary("xl") |
| self.assertFalse(result) |
| |
| def testCheckToolstackXlConfigured(self): |
| RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
| mock_run_cmd = mock.Mock(return_value=RESULT_OK) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| result = hv._CheckToolstackXlConfigured() |
| self.assertTrue(result) |
| |
| def testCheckToolstackXlNotConfigured(self): |
| RESULT_FAILED = utils.RunResult( |
| 1, None, "", |
| "ERROR: A different toolstack (xm) has been selected!", |
| "", None, None) |
| mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| result = hv._CheckToolstackXlConfigured() |
| self.assertFalse(result) |
| |
| def testCheckToolstackXlFails(self): |
| RESULT_FAILED = utils.RunResult( |
| 1, None, "", |
| "ERROR: The pink bunny hid the binary.", |
| "", None, None) |
| mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| self.assertRaises(errors.HypervisorError, hv._CheckToolstackXlConfigured) |
| |
| |
| class TestXenHypervisorWriteConfigFile(unittest.TestCase): |
| def setUp(self): |
| self.tmpdir = tempfile.mkdtemp() |
| |
| def tearDown(self): |
| shutil.rmtree(self.tmpdir) |
| |
| def testWriteError(self): |
| cfgdir = utils.PathJoin(self.tmpdir, "foobar") |
| |
| hv = hv_xen.XenHypervisor(_cfgdir=cfgdir, |
| _run_cmd_fn=NotImplemented, |
| _cmd=NotImplemented) |
| |
| self.assertFalse(os.path.exists(cfgdir)) |
| |
| try: |
| hv._WriteConfigFile("name", "data") |
| except errors.HypervisorError, err: |
| self.assertTrue(str(err).startswith("Cannot write Xen instance")) |
| else: |
| self.fail("Exception was not raised") |
| |
| |
| class TestXenHypervisorVerify(unittest.TestCase): |
| |
| def setUp(self): |
| output = testutils.ReadTestData("xen-xm-info-4.0.1.txt") |
| self._result_ok = utils.RunResult(0, None, output, "", "", None, None) |
| |
| def testVerify(self): |
| hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL} |
| mock_run_cmd = mock.Mock(return_value=self._result_ok) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| hv._CheckToolstack = mock.Mock(return_value=True) |
| result = hv.Verify(hvparams) |
| self.assertTrue(result is None) |
| |
| def testVerifyToolstackNotOk(self): |
| hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL} |
| mock_run_cmd = mock.Mock(return_value=self._result_ok) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| hv._CheckToolstack = mock.Mock() |
| hv._CheckToolstack.side_effect = errors.HypervisorError("foo") |
| result = hv.Verify(hvparams) |
| self.assertTrue(result is not None) |
| |
| def testVerifyFailing(self): |
| result_failed = utils.RunResult(1, None, "", "", "", None, None) |
| mock_run_cmd = mock.Mock(return_value=result_failed) |
| hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented, |
| _run_cmd_fn=mock_run_cmd) |
| hv._CheckToolstack = mock.Mock(return_value=True) |
| result = hv.Verify() |
| self.assertTrue(result is not None) |
| |
| |
| class _TestXenHypervisor(object): |
| TARGET = NotImplemented |
| CMD = NotImplemented |
| HVNAME = NotImplemented |
| VALID_HVPARAMS = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
| |
| def setUp(self): |
| super(_TestXenHypervisor, self).setUp() |
| |
| self.tmpdir = tempfile.mkdtemp() |
| |
| self.vncpw = "".join(random.sample(string.ascii_letters, 10)) |
| |
| self._xen_delay = self.TARGET._INSTANCE_LIST_DELAYS |
| self.TARGET._INSTANCE_LIST_DELAYS = (0.01, 1.0, 0.05) |
| |
| self._list_timeout = self.TARGET._INSTANCE_LIST_TIMEOUT |
| self.TARGET._INSTANCE_LIST_TIMEOUT = 0.1 |
| |
| self.vncpw_path = utils.PathJoin(self.tmpdir, "vncpw") |
| utils.WriteFile(self.vncpw_path, data=self.vncpw) |
| |
| def tearDown(self): |
| super(_TestXenHypervisor, self).tearDown() |
| |
| shutil.rmtree(self.tmpdir) |
| |
| self.TARGET._INSTANCE_LIST_DELAYS = self._xen_delay |
| self.TARGET._INSTANCE_LIST_TIMEOUT = self._list_timeout |
| |
| def _GetHv(self, run_cmd=NotImplemented): |
| return self.TARGET(_cfgdir=self.tmpdir, _run_cmd_fn=run_cmd, _cmd=self.CMD) |
| |
| def _SuccessCommand(self, stdout, cmd): |
| self.assertEqual(cmd[0], self.CMD) |
| |
| return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
| NotImplemented, NotImplemented) |
| |
| def _FailingCommand(self, cmd): |
| self.assertEqual(cmd[0], self.CMD) |
| |
| return utils.RunResult(constants.EXIT_FAILURE, None, |
| "", "This command failed", None, |
| NotImplemented, NotImplemented) |
| |
| def _FakeTcpPing(self, expected, result, target, port, **kwargs): |
| self.assertEqual((target, port), expected) |
| return result |
| |
| def testReadingNonExistentConfigFile(self): |
| hv = self._GetHv() |
| |
| try: |
| hv._ReadConfigFile("inst15780.example.com") |
| except errors.HypervisorError, err: |
| self.assertTrue(str(err).startswith("Failed to load Xen config file:")) |
| else: |
| self.fail("Exception was not raised") |
| |
| def testRemovingAutoConfigFile(self): |
| name = "inst8206.example.com" |
| cfgfile = utils.PathJoin(self.tmpdir, name) |
| autodir = utils.PathJoin(self.tmpdir, "auto") |
| autocfgfile = utils.PathJoin(autodir, name) |
| |
| os.mkdir(autodir) |
| |
| utils.WriteFile(autocfgfile, data="") |
| |
| hv = self._GetHv() |
| |
| self.assertTrue(os.path.isfile(autocfgfile)) |
| hv._WriteConfigFile(name, "content") |
| self.assertFalse(os.path.exists(autocfgfile)) |
| self.assertEqual(utils.ReadFile(cfgfile), "content") |
| |
| def _XenList(self, cmd): |
| self.assertEqual(cmd, [self.CMD, "list"]) |
| |
| # TODO: Use actual data from "xl" command |
| output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt") |
| |
| return self._SuccessCommand(output, cmd) |
| |
| def testGetInstanceInfo(self): |
| hv = self._GetHv(run_cmd=self._XenList) |
| |
| (name, instid, memory, vcpus, state, runtime) = \ |
| hv.GetInstanceInfo("server01.example.com") |
| |
| self.assertEqual(name, "server01.example.com") |
| self.assertEqual(instid, 1) |
| self.assertEqual(memory, 1024) |
| self.assertEqual(vcpus, 1) |
| self.assertEqual(state, hv_base.HvInstanceState.RUNNING) |
| self.assertAlmostEqual(runtime, 167643.2) |
| |
| def testGetInstanceInfoDom0(self): |
| hv = self._GetHv(run_cmd=self._XenList) |
| |
| # TODO: Not sure if this is actually used anywhere (can't find it), but the |
| # code supports querying for Dom0 |
| (name, instid, memory, vcpus, state, runtime) = \ |
| hv.GetInstanceInfo(hv_xen._DOM0_NAME) |
| |
| self.assertEqual(name, "Domain-0") |
| self.assertEqual(instid, 0) |
| self.assertEqual(memory, 1023) |
| self.assertEqual(vcpus, 1) |
| self.assertEqual(state, hv_base.HvInstanceState.RUNNING) |
| self.assertAlmostEqual(runtime, 154706.1) |
| |
| def testGetInstanceInfoUnknown(self): |
| hv = self._GetHv(run_cmd=self._XenList) |
| |
| result = hv.GetInstanceInfo("unknown.example.com") |
| self.assertTrue(result is None) |
| |
| def testGetAllInstancesInfo(self): |
| hv = self._GetHv(run_cmd=self._XenList) |
| |
| result = hv.GetAllInstancesInfo() |
| |
| self.assertEqual(map(compat.fst, result), [ |
| "server01.example.com", |
| "web3106215069.example.com", |
| "testinstance.example.com", |
| ]) |
| |
| def testListInstances(self): |
| hv = self._GetHv(run_cmd=self._XenList) |
| |
| self.assertEqual(hv.ListInstances(), [ |
| "server01.example.com", |
| "web3106215069.example.com", |
| "testinstance.example.com", |
| ]) |
| |
| def _StartInstanceCommand(self, inst, paused, failcreate, cmd): |
| if cmd == [self.CMD, "info"]: |
| output = testutils.ReadTestData("xen-xm-info-4.0.1.txt") |
| elif cmd == [self.CMD, "list"]: |
| output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt") |
| elif cmd[:2] == [self.CMD, "create"]: |
| args = cmd[2:] |
| cfgfile = utils.PathJoin(self.tmpdir, inst.name) |
| |
| if paused: |
| self.assertEqual(args, ["-p", cfgfile]) |
| else: |
| self.assertEqual(args, [cfgfile]) |
| |
| if failcreate: |
| return self._FailingCommand(cmd) |
| |
| output = "" |
| else: |
| self.fail("Unhandled command: %s" % (cmd, )) |
| |
| return self._SuccessCommand(output, cmd) |
| |
| def _MakeInstance(self): |
| # Copy default parameters |
| bep = objects.FillDict(constants.BEC_DEFAULTS, {}) |
| hvp = objects.FillDict(constants.HVC_DEFAULTS[self.HVNAME], {}) |
| |
| # Override default VNC password file path |
| if constants.HV_VNC_PASSWORD_FILE in hvp: |
| hvp[constants.HV_VNC_PASSWORD_FILE] = self.vncpw_path |
| |
| disks = [ |
| (objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDWR), |
| utils.PathJoin(self.tmpdir, "disk0"), |
| NotImplemented), |
| (objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDONLY), |
| utils.PathJoin(self.tmpdir, "disk1"), |
| NotImplemented), |
| ] |
| |
| inst = objects.Instance(name="server01.example.com", |
| hvparams=hvp, beparams=bep, |
| osparams={}, nics=[], os="deb1", |
| disks=map(compat.fst, disks)) |
| inst.UpgradeConfig() |
| |
| return (inst, disks) |
| |
| def testStartInstance(self): |
| (inst, disks) = self._MakeInstance() |
| pathutils.LOG_XEN_DIR = self.tmpdir |
| |
| for failcreate in [False, True]: |
| for paused in [False, True]: |
| run_cmd = compat.partial(self._StartInstanceCommand, |
| inst, paused, failcreate) |
| |
| hv = self._GetHv(run_cmd=run_cmd) |
| |
| # Ensure instance is not listed |
| self.assertTrue(inst.name not in hv.ListInstances()) |
| |
| # Remove configuration |
| cfgfile = utils.PathJoin(self.tmpdir, inst.name) |
| utils.RemoveFile(cfgfile) |
| |
| if failcreate: |
| self.assertRaises(errors.HypervisorError, hv.StartInstance, |
| inst, disks, paused) |
| # Check whether a stale config file is left behind |
| self.assertFalse(os.path.exists(cfgfile)) |
| else: |
| hv.StartInstance(inst, disks, paused) |
| # Check if configuration was updated |
| lines = utils.ReadFile(cfgfile).splitlines() |
| |
| if constants.HV_VNC_PASSWORD_FILE in inst.hvparams: |
| self.assertTrue(("vncpasswd = '%s'" % self.vncpw) in lines) |
| else: |
| extra = inst.hvparams[constants.HV_KERNEL_ARGS] |
| self.assertTrue(("extra = '%s'" % extra) in lines) |
| |
| def _StopInstanceCommand(self, instance_name, force, fail, full_cmd): |
| # Remove the timeout (and its number of seconds) if it's there |
| if full_cmd[:1][0] == "timeout": |
| cmd = full_cmd[2:] |
| else: |
| cmd = full_cmd |
| |
| # Test the actual command |
| if (cmd == [self.CMD, "list"]): |
| output = "Name ID Mem VCPUs State Time(s)\n" \ |
| "Domain-0 0 1023 1 r----- 142691.0\n" \ |
| "%s 417 128 1 r----- 3.2\n" % instance_name |
| elif cmd[:2] == [self.CMD, "destroy"]: |
| self.assertEqual(cmd[2:], [instance_name]) |
| output = "" |
| elif not force and cmd[:3] == [self.CMD, "shutdown", "-w"]: |
| self.assertEqual(cmd[3:], [instance_name]) |
| output = "" |
| else: |
| self.fail("Unhandled command: %s" % (cmd, )) |
| |
| if fail: |
| # Simulate a failing command |
| return self._FailingCommand(cmd) |
| else: |
| return self._SuccessCommand(output, cmd) |
| |
| def testStopInstance(self): |
| name = "inst4284.example.com" |
| cfgfile = utils.PathJoin(self.tmpdir, name) |
| cfgdata = "config file content\n" |
| |
| for force in [False, True]: |
| for fail in [False, True]: |
| utils.WriteFile(cfgfile, data=cfgdata) |
| |
| run_cmd = compat.partial(self._StopInstanceCommand, name, force, fail) |
| |
| hv = self._GetHv(run_cmd=run_cmd) |
| |
| self.assertTrue(os.path.isfile(cfgfile)) |
| |
| if fail: |
| try: |
| hv._StopInstance(name, force, None, |
| constants.DEFAULT_SHUTDOWN_TIMEOUT) |
| except errors.HypervisorError, err: |
| self.assertTrue(str(err).startswith("listing instances failed"), |
| msg=str(err)) |
| else: |
| self.fail("Exception was not raised") |
| self.assertEqual(utils.ReadFile(cfgfile), cfgdata, |
| msg=("Configuration was removed when stopping" |
| " instance failed")) |
| else: |
| hv._StopInstance(name, force, None, |
| constants.DEFAULT_SHUTDOWN_TIMEOUT) |
| self.assertFalse(os.path.exists(cfgfile)) |
| |
| def _MigrateNonRunningInstCmd(self, cmd): |
| if cmd == [self.CMD, "list"]: |
| output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt") |
| else: |
| self.fail("Unhandled command: %s" % (cmd, )) |
| |
| return self._SuccessCommand(output, cmd) |
| |
| def testMigrateInstanceNotRunning(self): |
| name = "nonexistinginstance.example.com" |
| target = constants.IP4_ADDRESS_LOCALHOST |
| port = 14618 |
| |
| hv = self._GetHv(run_cmd=self._MigrateNonRunningInstCmd) |
| |
| for live in [False, True]: |
| try: |
| hv._MigrateInstance(name, target, port, live, self.VALID_HVPARAMS, |
| _ping_fn=NotImplemented) |
| except errors.HypervisorError, err: |
| self.assertEqual(str(err), "Instance not running, cannot migrate") |
| else: |
| self.fail("Exception was not raised") |
| |
| def _MigrateInstTargetUnreachCmd(self, cmd): |
| if cmd == [self.CMD, "list"]: |
| output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt") |
| else: |
| self.fail("Unhandled command: %s" % (cmd, )) |
| |
| return self._SuccessCommand(output, cmd) |
| |
| def testMigrateTargetUnreachable(self): |
| name = "server01.example.com" |
| target = constants.IP4_ADDRESS_LOCALHOST |
| port = 28349 |
| |
| hv = self._GetHv(run_cmd=self._MigrateInstTargetUnreachCmd) |
| hvparams = {constants.HV_XEN_CMD: self.CMD} |
| |
| for live in [False, True]: |
| if self.CMD == constants.XEN_CMD_XL: |
| # TODO: Detect unreachable targets |
| pass |
| else: |
| try: |
| hv._MigrateInstance(name, target, port, live, hvparams, |
| _ping_fn=compat.partial(self._FakeTcpPing, |
| (target, port), False)) |
| except errors.HypervisorError, err: |
| wanted = "Remote host %s not" % target |
| self.assertTrue(str(err).startswith(wanted)) |
| else: |
| self.fail("Exception was not raised") |
| |
| def _MigrateInstanceCmd(self, instance_name, target, port, |
| live, fail, cmd): |
| if cmd == [self.CMD, "list"]: |
| output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt") |
| elif cmd[:2] == [self.CMD, "migrate"]: |
| if self.CMD == constants.XEN_CMD_XM: |
| args = ["-p", str(port)] |
| |
| if live: |
| args.append("-l") |
| |
| elif self.CMD == constants.XEN_CMD_XL: |
| args = [ |
| "-s", constants.XL_SOCAT_CMD % (target, port), |
| "-C", utils.PathJoin(self.tmpdir, instance_name), |
| ] |
| |
| else: |
| self.fail("Unknown Xen command '%s'" % self.CMD) |
| |
| args.extend([instance_name, target]) |
| self.assertEqual(cmd[2:], args) |
| |
| if fail: |
| return self._FailingCommand(cmd) |
| |
| output = "" |
| else: |
| self.fail("Unhandled command: %s" % (cmd, )) |
| |
| return self._SuccessCommand(output, cmd) |
| |
| def testMigrateInstance(self): |
| instname = "server01.example.com" |
| target = constants.IP4_ADDRESS_LOCALHOST |
| port = 22364 |
| |
| hvparams = {constants.HV_XEN_CMD: self.CMD} |
| |
| for live in [False, True]: |
| for fail in [False, True]: |
| ping_fn = \ |
| testutils.CallCounter(compat.partial(self._FakeTcpPing, |
| (target, port), True)) |
| |
| run_cmd = \ |
| compat.partial(self._MigrateInstanceCmd, |
| instname, target, port, live, fail) |
| |
| hv = self._GetHv(run_cmd=run_cmd) |
| |
| if fail: |
| try: |
| hv._MigrateInstance(instname, target, port, live, hvparams, |
| _ping_fn=ping_fn) |
| except errors.HypervisorError, err: |
| self.assertTrue(str(err).startswith("Failed to migrate instance")) |
| else: |
| self.fail("Exception was not raised") |
| else: |
| hv._MigrateInstance(instname, target, port, live, |
| hvparams, _ping_fn=ping_fn) |
| |
| if self.CMD == constants.XEN_CMD_XM: |
| expected_pings = 1 |
| else: |
| expected_pings = 0 |
| |
| self.assertEqual(ping_fn.Count(), expected_pings) |
| |
| def _GetNodeInfoCmd(self, fail, cmd): |
| if cmd == [self.CMD, "info"]: |
| if fail: |
| return self._FailingCommand(cmd) |
| else: |
| output = testutils.ReadTestData("xen-xm-info-4.0.1.txt") |
| elif cmd == [self.CMD, "list"]: |
| if fail: |
| self.fail("'xm list' shouldn't be called when 'xm info' failed") |
| else: |
| output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt") |
| else: |
| self.fail("Unhandled command: %s" % (cmd, )) |
| |
| return self._SuccessCommand(output, cmd) |
| |
| def testGetNodeInfo(self): |
| run_cmd = compat.partial(self._GetNodeInfoCmd, False) |
| hv = self._GetHv(run_cmd=run_cmd) |
| result = hv.GetNodeInfo() |
| |
| self.assertEqual(result["hv_version"], (4, 0)) |
| self.assertEqual(result["memory_free"], 8004) |
| |
| def testGetNodeInfoFailing(self): |
| run_cmd = compat.partial(self._GetNodeInfoCmd, True) |
| hv = self._GetHv(run_cmd=run_cmd) |
| self.assertTrue(hv.GetNodeInfo() is None) |
| |
| |
| class TestXenVersionsSafeForMigration(unittest.TestCase): |
| def testHVVersionsLikelySafeForMigration(self): |
| hv = hv_xen.XenHypervisor() |
| self.assertTrue(hv.VersionsSafeForMigration([4, 0], [4, 1])) |
| self.assertFalse(hv.VersionsSafeForMigration([4, 1], [4, 0])) |
| self.assertFalse(hv.VersionsSafeForMigration([4, 0], [4, 2])) |
| self.assertTrue(hv.VersionsSafeForMigration([4, 2, 7], [4, 2, 9])) |
| self.assertTrue(hv.VersionsSafeForMigration([4, 2, 9], [4, 2, 7])) |
| self.assertTrue(hv.VersionsSafeForMigration([4], [4])) |
| self.assertFalse(hv.VersionsSafeForMigration([4], [5])) |
| |
| |
| def _MakeTestClass(cls, cmd): |
| """Makes a class for testing. |
| |
| The returned class has structure as shown in the following pseudo code: |
| |
| class Test{cls.__name__}{cmd}(_TestXenHypervisor, unittest.TestCase): |
| TARGET = {cls} |
| CMD = {cmd} |
| HVNAME = {Hypervisor name retrieved using class} |
| |
| @type cls: class |
| @param cls: Hypervisor class to be tested |
| @type cmd: string |
| @param cmd: Hypervisor command |
| @rtype: tuple |
| @return: Class name and class object (not instance) |
| |
| """ |
| name = "Test%sCmd%s" % (cls.__name__, cmd.title()) |
| bases = (_TestXenHypervisor, unittest.TestCase) |
| hvname = HVCLASS_TO_HVNAME[cls] |
| |
| return (name, type(name, bases, dict(TARGET=cls, CMD=cmd, HVNAME=hvname))) |
| |
| |
| # Create test classes programmatically instead of manually to reduce the risk |
| # of forgetting some combinations |
| for cls in [hv_xen.XenPvmHypervisor, hv_xen.XenHvmHypervisor]: |
| for cmd in constants.KNOWN_XEN_COMMANDS: |
| (name, testcls) = _MakeTestClass(cls, cmd) |
| |
| assert name not in locals() |
| |
| locals()[name] = testcls |
| |
| |
| if __name__ == "__main__": |
| testutils.GanetiTestProgram() |
