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#!/usr/bin/python -u
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#
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# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 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 doing QA on Ganeti.
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"""
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# pylint: disable=C0103
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# due to invalid name
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import sys
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import datetime
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import optparse
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import qa_cluster
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import qa_config
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import qa_daemon
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import qa_env
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import qa_error
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import qa_group
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import qa_instance
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import qa_node
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import qa_os
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import qa_job
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import qa_rapi
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import qa_tags
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import qa_utils
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from ganeti import utils
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from ganeti import rapi # pylint: disable=W0611
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from ganeti import constants
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import ganeti.rapi.client # pylint: disable=W0611
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from ganeti.rapi.client import UsesRapiClient
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def _FormatHeader(line, end=72):
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  """Fill a line up to the end column.
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  """
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  line = "---- " + line + " "
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  line += "-" * (end - len(line))
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  line = line.rstrip()
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  return line
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def _DescriptionOf(fn):
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  """Computes the description of an item.
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  """
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  if fn.__doc__:
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    desc = fn.__doc__.splitlines()[0].strip()
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  else:
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    desc = "%r" % fn
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  return desc.rstrip(".")
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def RunTest(fn, *args, **kwargs):
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  """Runs a test after printing a header.
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  """
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  tstart = datetime.datetime.now()
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  desc = _DescriptionOf(fn)
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  print
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  print _FormatHeader("%s start %s" % (tstart, desc))
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  try:
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    retval = fn(*args, **kwargs)
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    return retval
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  finally:
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    tstop = datetime.datetime.now()
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    tdelta = tstop - tstart
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    print _FormatHeader("%s time=%s %s" % (tstop, tdelta, desc))
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def RunTestIf(testnames, fn, *args, **kwargs):
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  """Runs a test conditionally.
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  @param testnames: either a single test name in the configuration
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      file, or a list of testnames (which will be AND-ed together)
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  """
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  if qa_config.TestEnabled(testnames):
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    RunTest(fn, *args, **kwargs)
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  else:
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    tstart = datetime.datetime.now()
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    desc = _DescriptionOf(fn)
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    print _FormatHeader("%s skipping %s, test(s) %s disabled" %
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                        (tstart, desc, testnames))
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def RunEnvTests():
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  """Run several environment tests.
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  """
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  RunTestIf("env", qa_env.TestSshConnection)
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  RunTestIf("env", qa_env.TestIcmpPing)
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  RunTestIf("env", qa_env.TestGanetiCommands)
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def SetupCluster(rapi_user, rapi_secret):
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  """Initializes the cluster.
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  @param rapi_user: Login user for RAPI
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  @param rapi_secret: Login secret for RAPI
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  """
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  RunTestIf("create-cluster", qa_cluster.TestClusterInit,
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            rapi_user, rapi_secret)
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  # Test on empty cluster
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  RunTestIf("node-list", qa_node.TestNodeList)
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  RunTestIf("instance-list", qa_instance.TestInstanceList)
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  RunTestIf("job-list", qa_job.TestJobList)
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  RunTestIf("create-cluster", qa_node.TestNodeAddAll)
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  if not qa_config.TestEnabled("create-cluster"):
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    # consider the nodes are already there
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    qa_node.MarkNodeAddedAll()
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  RunTestIf("test-jobqueue", qa_cluster.TestJobqueue)
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  # enable the watcher (unconditionally)
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  RunTest(qa_daemon.TestResumeWatcher)
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  RunTestIf("node-list", qa_node.TestNodeList)
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  # Test listing fields
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  RunTestIf("node-list", qa_node.TestNodeListFields)
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  RunTestIf("instance-list", qa_instance.TestInstanceListFields)
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  RunTestIf("job-list", qa_job.TestJobListFields)
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  RunTestIf("instance-export", qa_instance.TestBackupListFields)
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  RunTestIf("node-info", qa_node.TestNodeInfo)
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def RunClusterTests():
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  """Runs tests related to gnt-cluster.
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  """
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  for test, fn in [
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    ("create-cluster", qa_cluster.TestClusterInitDisk),
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    ("cluster-renew-crypto", qa_cluster.TestClusterRenewCrypto),
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    ("cluster-verify", qa_cluster.TestClusterVerify),
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    ("cluster-reserved-lvs", qa_cluster.TestClusterReservedLvs),
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    # TODO: add more cluster modify tests
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    ("cluster-modify", qa_cluster.TestClusterModifyEmpty),
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    ("cluster-modify", qa_cluster.TestClusterModifyBe),
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    ("cluster-modify", qa_cluster.TestClusterModifyDisk),
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    ("cluster-rename", qa_cluster.TestClusterRename),
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    ("cluster-info", qa_cluster.TestClusterVersion),
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    ("cluster-info", qa_cluster.TestClusterInfo),
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    ("cluster-info", qa_cluster.TestClusterGetmaster),
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    ("cluster-redist-conf", qa_cluster.TestClusterRedistConf),
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    ("cluster-copyfile", qa_cluster.TestClusterCopyfile),
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    ("cluster-command", qa_cluster.TestClusterCommand),
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    ("cluster-burnin", qa_cluster.TestClusterBurnin),
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    ("cluster-master-failover", qa_cluster.TestClusterMasterFailover),
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    ("cluster-master-failover",
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     qa_cluster.TestClusterMasterFailoverWithDrainedQueue),
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    ("cluster-oob", qa_cluster.TestClusterOob),
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    ("rapi", qa_rapi.TestVersion),
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    ("rapi", qa_rapi.TestEmptyCluster),
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    ("rapi", qa_rapi.TestRapiQuery),
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    ]:
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    RunTestIf(test, fn)
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def RunRepairDiskSizes():
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  """Run the repair disk-sizes test.
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  """
195
  RunTestIf("cluster-repair-disk-sizes", qa_cluster.TestClusterRepairDiskSizes)
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197

    
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def RunOsTests():
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  """Runs all tests related to gnt-os.
200

201
  """
202
  if qa_config.TestEnabled("rapi"):
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    rapi_getos = qa_rapi.GetOperatingSystems
204
  else:
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    rapi_getos = None
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207
  for fn in [
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    qa_os.TestOsList,
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    qa_os.TestOsDiagnose,
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    ]:
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    RunTestIf("os", fn)
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  for fn in [
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    qa_os.TestOsValid,
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    qa_os.TestOsInvalid,
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    qa_os.TestOsPartiallyValid,
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    ]:
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    RunTestIf("os", fn, rapi_getos)
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220
  for fn in [
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    qa_os.TestOsModifyValid,
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    qa_os.TestOsModifyInvalid,
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    qa_os.TestOsStatesNonExisting,
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    ]:
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    RunTestIf("os", fn)
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def RunCommonInstanceTests(instance):
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  """Runs a few tests that are common to all disk types.
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  """
232
  RunTestIf("instance-shutdown", qa_instance.TestInstanceShutdown, instance)
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  RunTestIf(["instance-shutdown", "instance-console", "rapi"],
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            qa_rapi.TestRapiStoppedInstanceConsole, instance)
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  RunTestIf(["instance-shutdown", "instance-modify"],
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            qa_instance.TestInstanceStoppedModify, instance)
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  RunTestIf("instance-shutdown", qa_instance.TestInstanceStartup, instance)
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  # Test shutdown/start via RAPI
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  RunTestIf(["instance-shutdown", "rapi"],
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            qa_rapi.TestRapiInstanceShutdown, instance)
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  RunTestIf(["instance-shutdown", "rapi"],
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            qa_rapi.TestRapiInstanceStartup, instance)
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  RunTestIf("instance-list", qa_instance.TestInstanceList)
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  RunTestIf("instance-info", qa_instance.TestInstanceInfo, instance)
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  RunTestIf("instance-modify", qa_instance.TestInstanceModify, instance)
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  RunTestIf(["instance-modify", "rapi"],
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            qa_rapi.TestRapiInstanceModify, instance)
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  RunTestIf("instance-console", qa_instance.TestInstanceConsole, instance)
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  RunTestIf(["instance-console", "rapi"],
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            qa_rapi.TestRapiInstanceConsole, instance)
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  DOWN_TESTS = qa_config.Either([
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    "instance-reinstall",
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    "instance-rename",
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    "instance-grow-disk",
261
    ])
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  # shutdown instance for any 'down' tests
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  RunTestIf(DOWN_TESTS, qa_instance.TestInstanceShutdown, instance)
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  # now run the 'down' state tests
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  RunTestIf("instance-reinstall", qa_instance.TestInstanceReinstall, instance)
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  RunTestIf(["instance-reinstall", "rapi"],
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            qa_rapi.TestRapiInstanceReinstall, instance)
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  if qa_config.TestEnabled("instance-rename"):
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    tgt_instance = qa_config.AcquireInstance()
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    try:
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      rename_source = instance["name"]
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      rename_target = tgt_instance["name"]
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      # perform instance rename to the same name
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      RunTest(qa_instance.TestInstanceRenameAndBack,
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              rename_source, rename_source)
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      RunTestIf("rapi", qa_rapi.TestRapiInstanceRenameAndBack,
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                rename_source, rename_source)
281
      if rename_target is not None:
282
        # perform instance rename to a different name, if we have one configured
283
        RunTest(qa_instance.TestInstanceRenameAndBack,
284
                rename_source, rename_target)
285
        RunTestIf("rapi", qa_rapi.TestRapiInstanceRenameAndBack,
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                  rename_source, rename_target)
287
    finally:
288
      qa_config.ReleaseInstance(tgt_instance)
289

    
290
  RunTestIf(["instance-grow-disk"], qa_instance.TestInstanceGrowDisk, instance)
291

    
292
  # and now start the instance again
293
  RunTestIf(DOWN_TESTS, qa_instance.TestInstanceStartup, instance)
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295
  RunTestIf("instance-reboot", qa_instance.TestInstanceReboot, instance)
296

    
297
  RunTestIf("tags", qa_tags.TestInstanceTags, instance)
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  RunTestIf("cluster-verify", qa_cluster.TestClusterVerify)
300

    
301
  RunTestIf("rapi", qa_rapi.TestInstance, instance)
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303
  # Lists instances, too
304
  RunTestIf("node-list", qa_node.TestNodeList)
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306
  # Some jobs have been run, let's test listing them
307
  RunTestIf("job-list", qa_job.TestJobList)
308

    
309

    
310
def RunCommonNodeTests():
311
  """Run a few common node tests.
312

313
  """
314
  RunTestIf("node-volumes", qa_node.TestNodeVolumes)
315
  RunTestIf("node-storage", qa_node.TestNodeStorage)
316
  RunTestIf("node-oob", qa_node.TestOutOfBand)
317

    
318

    
319
def RunGroupListTests():
320
  """Run tests for listing node groups.
321

322
  """
323
  RunTestIf("group-list", qa_group.TestGroupList)
324
  RunTestIf("group-list", qa_group.TestGroupListFields)
325

    
326

    
327
def RunGroupRwTests():
328
  """Run tests for adding/removing/renaming groups.
329

330
  """
331
  RunTestIf("group-rwops", qa_group.TestGroupAddRemoveRename)
332
  RunTestIf("group-rwops", qa_group.TestGroupAddWithOptions)
333
  RunTestIf("group-rwops", qa_group.TestGroupModify)
334
  RunTestIf(["group-rwops", "rapi"], qa_rapi.TestRapiNodeGroups)
335
  RunTestIf(["group-rwops", "tags"], qa_tags.TestGroupTags,
336
            qa_group.GetDefaultGroup())
337

    
338

    
339
def RunExportImportTests(instance, pnode, snode):
340
  """Tries to export and import the instance.
341

342
  @param pnode: current primary node of the instance
343
  @param snode: current secondary node of the instance, if any,
344
      otherwise None
345

346
  """
347
  if qa_config.TestEnabled("instance-export"):
348
    RunTest(qa_instance.TestInstanceExportNoTarget, instance)
349

    
350
    expnode = qa_config.AcquireNode(exclude=pnode)
351
    try:
352
      name = RunTest(qa_instance.TestInstanceExport, instance, expnode)
353

    
354
      RunTest(qa_instance.TestBackupList, expnode)
355

    
356
      if qa_config.TestEnabled("instance-import"):
357
        newinst = qa_config.AcquireInstance()
358
        try:
359
          RunTest(qa_instance.TestInstanceImport, newinst, pnode,
360
                  expnode, name)
361
          # Check if starting the instance works
362
          RunTest(qa_instance.TestInstanceStartup, newinst)
363
          RunTest(qa_instance.TestInstanceRemove, newinst)
364
        finally:
365
          qa_config.ReleaseInstance(newinst)
366
    finally:
367
      qa_config.ReleaseNode(expnode)
368

    
369
  if qa_config.TestEnabled(["rapi", "inter-cluster-instance-move"]):
370
    newinst = qa_config.AcquireInstance()
371
    try:
372
      if snode is None:
373
        excl = [pnode]
374
      else:
375
        excl = [pnode, snode]
376
      tnode = qa_config.AcquireNode(exclude=excl)
377
      try:
378
        RunTest(qa_rapi.TestInterClusterInstanceMove, instance, newinst,
379
                pnode, snode, tnode)
380
      finally:
381
        qa_config.ReleaseNode(tnode)
382
    finally:
383
      qa_config.ReleaseInstance(newinst)
384

    
385

    
386
def RunDaemonTests(instance):
387
  """Test the ganeti-watcher script.
388

389
  """
390
  RunTest(qa_daemon.TestPauseWatcher)
391

    
392
  RunTestIf("instance-automatic-restart",
393
            qa_daemon.TestInstanceAutomaticRestart, instance)
394
  RunTestIf("instance-consecutive-failures",
395
            qa_daemon.TestInstanceConsecutiveFailures, instance)
396

    
397
  RunTest(qa_daemon.TestResumeWatcher)
398

    
399

    
400
def RunSingleHomedHardwareFailureTests(instance, pnode):
401
  """Test hardware failure recovery for single-homed instances.
402

403
  """
404
  if qa_config.TestEnabled("instance-recreate-disks"):
405
    othernode = qa_config.AcquireNode(exclude=[pnode])
406
    try:
407
      RunTest(qa_instance.TestRecreateDisks,
408
              instance, pnode, None, [othernode])
409
    finally:
410
      qa_config.ReleaseNode(othernode)
411

    
412

    
413
def RunHardwareFailureTests(instance, pnode, snode):
414
  """Test cluster internal hardware failure recovery.
415

416
  """
417
  RunTestIf("instance-failover", qa_instance.TestInstanceFailover, instance)
418
  RunTestIf(["instance-failover", "rapi"],
419
            qa_rapi.TestRapiInstanceFailover, instance)
420

    
421
  RunTestIf("instance-migrate", qa_instance.TestInstanceMigrate, instance)
422
  RunTestIf(["instance-migrate", "rapi"],
423
            qa_rapi.TestRapiInstanceMigrate, instance)
424

    
425
  if qa_config.TestEnabled("instance-replace-disks"):
426
    othernode = qa_config.AcquireNode(exclude=[pnode, snode])
427
    try:
428
      RunTestIf("rapi", qa_rapi.TestRapiInstanceReplaceDisks, instance)
429
      RunTest(qa_instance.TestReplaceDisks,
430
              instance, pnode, snode, othernode)
431
    finally:
432
      qa_config.ReleaseNode(othernode)
433

    
434
  if qa_config.TestEnabled("instance-recreate-disks"):
435
    othernode1 = qa_config.AcquireNode(exclude=[pnode, snode])
436
    try:
437
      othernode2 = qa_config.AcquireNode(exclude=[pnode, snode, othernode1])
438
    except qa_error.OutOfNodesError:
439
      # Let's reuse one of the nodes if the cluster is not big enough
440
      othernode2 = pnode
441
    try:
442
      RunTest(qa_instance.TestRecreateDisks,
443
              instance, pnode, snode, [othernode1, othernode2])
444
    finally:
445
      qa_config.ReleaseNode(othernode1)
446
      if othernode2 != pnode:
447
        qa_config.ReleaseNode(othernode2)
448

    
449
  RunTestIf("node-evacuate", qa_node.TestNodeEvacuate, pnode, snode)
450

    
451
  RunTestIf("node-failover", qa_node.TestNodeFailover, pnode, snode)
452

    
453
  RunTestIf("instance-disk-failure", qa_instance.TestInstanceMasterDiskFailure,
454
            instance, pnode, snode)
455
  RunTestIf("instance-disk-failure",
456
            qa_instance.TestInstanceSecondaryDiskFailure, instance,
457
            pnode, snode)
458

    
459

    
460
def RunExclusiveStorageTests():
461
  """Test exclusive storage."""
462
  if not qa_config.TestEnabled("cluster-exclusive-storage"):
463
    return
464

    
465
  node = qa_config.AcquireNode()
466
  try:
467
    old_es = qa_cluster.TestSetExclStorCluster(True)
468
    if qa_config.TestEnabled("instance-add-plain-disk"):
469
      # Make sure that the cluster doesn't have any pre-existing problem
470
      qa_cluster.AssertClusterVerify()
471
      instance1 = qa_instance.TestInstanceAddWithPlainDisk(node)
472
      instance2 = qa_instance.TestInstanceAddWithPlainDisk(node)
473
      # cluster-verify checks that disks are allocated correctly
474
      qa_cluster.AssertClusterVerify()
475
      qa_instance.TestInstanceRemove(instance1)
476
      qa_instance.TestInstanceRemove(instance2)
477
    qa_cluster.TestSetExclStorCluster(old_es)
478
  finally:
479
    qa_config.ReleaseNode(node)
480

    
481

    
482
def RunQa():
483
  """Main QA body.
484

485
  """
486
  rapi_user = "ganeti-qa"
487
  rapi_secret = utils.GenerateSecret()
488

    
489
  RunEnvTests()
490
  SetupCluster(rapi_user, rapi_secret)
491

    
492
  # Load RAPI certificate
493
  qa_rapi.Setup(rapi_user, rapi_secret)
494

    
495
  RunClusterTests()
496
  RunOsTests()
497

    
498
  RunTestIf("tags", qa_tags.TestClusterTags)
499

    
500
  RunCommonNodeTests()
501
  RunGroupListTests()
502
  RunGroupRwTests()
503

    
504
  # The master shouldn't be readded or put offline; "delay" needs a non-master
505
  # node to test
506
  pnode = qa_config.AcquireNode(exclude=qa_config.GetMasterNode())
507
  try:
508
    RunTestIf("node-readd", qa_node.TestNodeReadd, pnode)
509
    RunTestIf("node-modify", qa_node.TestNodeModify, pnode)
510
    RunTestIf("delay", qa_cluster.TestDelay, pnode)
511
  finally:
512
    qa_config.ReleaseNode(pnode)
513

    
514
  pnode = qa_config.AcquireNode()
515
  try:
516
    RunTestIf("tags", qa_tags.TestNodeTags, pnode)
517

    
518
    if qa_rapi.Enabled():
519
      RunTest(qa_rapi.TestNode, pnode)
520

    
521
      if qa_config.TestEnabled("instance-add-plain-disk"):
522
        for use_client in [True, False]:
523
          rapi_instance = RunTest(qa_rapi.TestRapiInstanceAdd, pnode,
524
                                  use_client)
525
          if qa_config.TestEnabled("instance-plain-rapi-common-tests"):
526
            RunCommonInstanceTests(rapi_instance)
527
          RunTest(qa_rapi.TestRapiInstanceRemove, rapi_instance, use_client)
528
          del rapi_instance
529

    
530
    if qa_config.TestEnabled("instance-add-plain-disk"):
531
      instance = RunTest(qa_instance.TestInstanceAddWithPlainDisk, pnode)
532
      RunCommonInstanceTests(instance)
533
      RunGroupListTests()
534
      RunTestIf("cluster-epo", qa_cluster.TestClusterEpo)
535
      RunExportImportTests(instance, pnode, None)
536
      RunDaemonTests(instance)
537
      RunRepairDiskSizes()
538
      RunSingleHomedHardwareFailureTests(instance, pnode)
539
      RunTest(qa_instance.TestInstanceRemove, instance)
540
      del instance
541

    
542
    multinode_tests = [
543
      ("instance-add-drbd-disk",
544
       qa_instance.TestInstanceAddWithDrbdDisk),
545
    ]
546

    
547
    for name, func in multinode_tests:
548
      if qa_config.TestEnabled(name):
549
        snode = qa_config.AcquireNode(exclude=pnode)
550
        try:
551
          instance = RunTest(func, pnode, snode)
552
          RunTestIf("haskell-confd", qa_node.TestNodeListDrbd, pnode)
553
          RunTestIf("haskell-confd", qa_node.TestNodeListDrbd, snode)
554
          RunCommonInstanceTests(instance)
555
          RunGroupListTests()
556
          RunTestIf("group-rwops", qa_group.TestAssignNodesIncludingSplit,
557
                    constants.INITIAL_NODE_GROUP_NAME,
558
                    pnode["primary"], snode["primary"])
559
          if qa_config.TestEnabled("instance-convert-disk"):
560
            RunTest(qa_instance.TestInstanceShutdown, instance)
561
            RunTest(qa_instance.TestInstanceConvertDisk, instance, snode)
562
            RunTest(qa_instance.TestInstanceStartup, instance)
563
          RunExportImportTests(instance, pnode, snode)
564
          RunHardwareFailureTests(instance, pnode, snode)
565
          RunRepairDiskSizes()
566
          RunTest(qa_instance.TestInstanceRemove, instance)
567
          del instance
568
        finally:
569
          qa_config.ReleaseNode(snode)
570

    
571
  finally:
572
    qa_config.ReleaseNode(pnode)
573

    
574
  # Test removing instance with offline drbd secondary
575
  if qa_config.TestEnabled("instance-remove-drbd-offline"):
576
    # Make sure the master is not put offline
577
    snode = qa_config.AcquireNode(exclude=qa_config.GetMasterNode())
578
    try:
579
      pnode = qa_config.AcquireNode(exclude=snode)
580
      try:
581
        instance = qa_instance.TestInstanceAddWithDrbdDisk(pnode, snode)
582
        qa_node.MakeNodeOffline(snode, "yes")
583
        try:
584
          RunTest(qa_instance.TestInstanceRemove, instance)
585
        finally:
586
          qa_node.MakeNodeOffline(snode, "no")
587
      finally:
588
        qa_config.ReleaseNode(pnode)
589
    finally:
590
      qa_config.ReleaseNode(snode)
591

    
592
  pnode = qa_config.AcquireNode()
593
  try:
594
    if qa_config.TestEnabled(["instance-add-plain-disk", "instance-export"]):
595
      for shutdown in [False, True]:
596
        instance = RunTest(qa_instance.TestInstanceAddWithPlainDisk, pnode)
597
        expnode = qa_config.AcquireNode(exclude=pnode)
598
        try:
599
          if shutdown:
600
            # Stop instance before exporting and removing it
601
            RunTest(qa_instance.TestInstanceShutdown, instance)
602
          RunTest(qa_instance.TestInstanceExportWithRemove, instance, expnode)
603
          RunTest(qa_instance.TestBackupList, expnode)
604
        finally:
605
          qa_config.ReleaseNode(expnode)
606
        del expnode
607
        del instance
608

    
609
  finally:
610
    qa_config.ReleaseNode(pnode)
611

    
612
  RunExclusiveStorageTests()
613

    
614
  RunTestIf("create-cluster", qa_node.TestNodeRemoveAll)
615

    
616
  RunTestIf("cluster-destroy", qa_cluster.TestClusterDestroy)
617

    
618

    
619
@UsesRapiClient
620
def main():
621
  """Main program.
622

623
  """
624
  parser = optparse.OptionParser(usage="%prog [options] <config-file>")
625
  parser.add_option("--yes-do-it", dest="yes_do_it",
626
                    action="store_true",
627
                    help="Really execute the tests")
628
  (qa_config.options, args) = parser.parse_args()
629

    
630
  if len(args) == 1:
631
    (config_file, ) = args
632
  else:
633
    parser.error("Wrong number of arguments.")
634

    
635
  if not qa_config.options.yes_do_it:
636
    print ("Executing this script irreversibly destroys any Ganeti\n"
637
           "configuration on all nodes involved. If you really want\n"
638
           "to start testing, supply the --yes-do-it option.")
639
    sys.exit(1)
640

    
641
  qa_config.Load(config_file)
642

    
643
  primary = qa_config.GetMasterNode()["primary"]
644
  qa_utils.StartMultiplexer(primary)
645
  print ("SSH command for primary node: %s" %
646
         utils.ShellQuoteArgs(qa_utils.GetSSHCommand(primary, "")))
647
  print ("SSH command for other nodes: %s" %
648
         utils.ShellQuoteArgs(qa_utils.GetSSHCommand("NODE", "")))
649
  try:
650
    RunQa()
651
  finally:
652
    qa_utils.CloseMultiplexers()
653

    
654
if __name__ == "__main__":
655
  main()