Synnefo » snf-ganeti

#!/usr/bin/python

#

# Copyright (C) 2007 Google Inc.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

"""Script for doing QA on Ganeti.

You can create the required known_hosts file using ssh-keyscan. It's mandatory

to use the full name of a node (FQDN). For security reasons, verify the keys

before using them.

Example: ssh-keyscan -t rsa node{1,2,3,4}.example.com > known_hosts

"""

import sys

import datetime

import optparse

import qa_cluster

import qa_config

import qa_daemon

import qa_env

import qa_instance

import qa_node

import qa_os

import qa_other

import qa_tags

import qa_utils

def RunTest(fn, *args):

  """Runs a test after printing a header.

  """

  if fn.__doc__:

    desc = fn.__doc__.splitlines()[0].strip()

  else:

    desc = '%r' % fn

  now = str(datetime.datetime.now())

  print

  print '---', now, ('-' * (55 - len(now)))

  print desc

  print '-' * 60

  return fn(*args)

def RunEnvTests():

  """Run several environment tests.

  """

  if not qa_config.TestEnabled('env'):

    return

  RunTest(qa_env.TestSshConnection)

  RunTest(qa_env.TestIcmpPing)

  RunTest(qa_env.TestGanetiCommands)

def SetupCluster():

  """Initializes the cluster.

  """

  RunTest(qa_cluster.TestClusterInit)

  RunTest(qa_node.TestNodeAddAll)

  if qa_config.TestEnabled('node-info'):

    RunTest(qa_node.TestNodeInfo)

def RunClusterTests():

  """Runs tests related to gnt-cluster.

  """

  if qa_config.TestEnabled('cluster-verify'):

    RunTest(qa_cluster.TestClusterVerify)

  if qa_config.TestEnabled('cluster-rename'):

    RunTest(qa_cluster.TestClusterRename)

  if qa_config.TestEnabled('cluster-info'):

    RunTest(qa_cluster.TestClusterVersion)

    RunTest(qa_cluster.TestClusterInfo)

    RunTest(qa_cluster.TestClusterGetmaster)

  if qa_config.TestEnabled('cluster-copyfile'):

    RunTest(qa_cluster.TestClusterCopyfile)

  if qa_config.TestEnabled('cluster-command'):

    RunTest(qa_cluster.TestClusterCommand)

  if qa_config.TestEnabled('cluster-burnin'):

    RunTest(qa_cluster.TestClusterBurnin)

  if qa_config.TestEnabled('cluster-master-failover'):

    RunTest(qa_cluster.TestClusterMasterFailover)

def RunOsTests():

  """Runs all tests related to gnt-os.

  """

  if not qa_config.TestEnabled('os'):

    return

  RunTest(qa_os.TestOsList)

  RunTest(qa_os.TestOsDiagnose)

  RunTest(qa_os.TestOsValid)

  RunTest(qa_os.TestOsInvalid)

  RunTest(qa_os.TestOsPartiallyValid)

def RunCommonInstanceTests(instance):

  """Runs a few tests that are common to all disk types.

  """

  if qa_config.TestEnabled('instance-shutdown'):

    RunTest(qa_instance.TestInstanceShutdown, instance)

    RunTest(qa_instance.TestInstanceStartup, instance)

  if qa_config.TestEnabled('instance-list'):

    RunTest(qa_instance.TestInstanceList)

  if qa_config.TestEnabled('instance-info'):

    RunTest(qa_instance.TestInstanceInfo, instance)

  if qa_config.TestEnabled('instance-modify'):

    RunTest(qa_instance.TestInstanceModify, instance)

  if qa_config.TestEnabled('instance-console'):

    RunTest(qa_instance.TestInstanceConsole, instance)

  if qa_config.TestEnabled('instance-reinstall'):

    RunTest(qa_instance.TestInstanceShutdown, instance)

    RunTest(qa_instance.TestInstanceReinstall, instance)

    RunTest(qa_instance.TestInstanceStartup, instance)

  if qa_config.TestEnabled('tags'):

    RunTest(qa_tags.TestInstanceTags, instance)

  if qa_config.TestEnabled('node-volumes'):

    RunTest(qa_node.TestNodeVolumes)

def RunExportImportTests(instance, pnode):

  """Tries to export and import the instance.

  """

  if qa_config.TestEnabled('instance-export'):

    expnode = qa_config.AcquireNode(exclude=pnode)

    try:

      name = RunTest(qa_instance.TestInstanceExport, instance, expnode)

      RunTest(qa_instance.TestBackupList, expnode)

      if qa_config.TestEnabled('instance-import'):

        newinst = qa_config.AcquireInstance()

        try:

          RunTest(qa_instance.TestInstanceImport, pnode, newinst,

                  expnode, name)

          RunTest(qa_instance.TestInstanceRemove, newinst)

        finally:

          qa_config.ReleaseInstance(newinst)

    finally:

      qa_config.ReleaseNode(expnode)

def RunDaemonTests(instance, pnode):

  """Test the ganeti-watcher script.

  """

  automatic_restart = \

    qa_config.TestEnabled('instance-automatic-restart')

  consecutive_failures = \

    qa_config.TestEnabled('instance-consecutive-failures')

  if automatic_restart or consecutive_failures:

    qa_daemon.PrintCronWarning()

    if automatic_restart:

      RunTest(qa_daemon.TestInstanceAutomaticRestart, pnode, instance)

    if consecutive_failures:

      RunTest(qa_daemon.TestInstanceConsecutiveFailures, pnode, instance)

def RunHardwareFailureTests(instance, pnode, snode):

  """Test cluster internal hardware failure recovery.

  """

  if qa_config.TestEnabled('instance-failover'):

    RunTest(qa_instance.TestInstanceFailover, instance)

  if qa_config.TestEnabled('instance-replace-disks'):

    othernode = qa_config.AcquireNode(exclude=pnode)

    try:

      RunTest(qa_instance.TestReplaceDisks,

              instance, pnode, snode, othernode)

    finally:

      qa_config.ReleaseNode(othernode)

  if qa_config.TestEnabled('node-evacuate'):

    RunTest(qa_node.TestNodeEvacuate, pnode, snode)

  if qa_config.TestEnabled('node-failover'):

    RunTest(qa_node.TestNodeFailover, pnode, snode)

  if qa_config.TestEnabled('instance-disk-failure'):

    RunTest(qa_instance.TestInstanceMasterDiskFailure,

            instance, pnode, snode)

    RunTest(qa_instance.TestInstanceSecondaryDiskFailure,

            instance, pnode, snode)

def main():

  """Main program.

  """

  parser = optparse.OptionParser(usage="%prog [options] <config-file>"

                                       " <known-hosts-file>")

  parser.add_option('--dry-run', dest='dry_run',

      action="store_true",

      help="Show what would be done")

  parser.add_option('--yes-do-it', dest='yes_do_it',

      action="store_true",

      help="Really execute the tests")

  (qa_config.options, args) = parser.parse_args()

  if len(args) == 2:

    (config_file, known_hosts_file) = args

  else:

    parser.error("Not enough arguments.")

  if not qa_config.options.yes_do_it:

    print ("Executing this script irreversibly destroys any Ganeti\n"

           "configuration on all nodes involved. If you really want\n"

           "to start testing, supply the --yes-do-it option.")

    sys.exit(1)

  qa_config.Load(config_file)

  qa_utils.LoadHooks()

  RunTest(qa_other.UploadKnownHostsFile, known_hosts_file)

  RunEnvTests()

  SetupCluster()

  RunClusterTests()

  RunOsTests()

  if qa_config.TestEnabled('tags'):

    RunTest(qa_tags.TestClusterTags)

  if qa_config.TestEnabled('node-readd'):

    master = qa_config.GetMasterNode()

    pnode = qa_config.AcquireNode(exclude=master)

    try:

      RunTest(qa_node.TestNodeReadd, pnode)

    finally:

      qa_config.ReleaseNode(pnode)

  pnode = qa_config.AcquireNode()

  try:

    if qa_config.TestEnabled('tags'):

      RunTest(qa_tags.TestNodeTags, pnode)

    if qa_config.TestEnabled('instance-add-plain-disk'):

      instance = RunTest(qa_instance.TestInstanceAddWithPlainDisk, pnode)

      RunCommonInstanceTests(instance)

      RunExportImportTests(instance, pnode)

      RunDaemonTests(instance, pnode)

      RunTest(qa_instance.TestInstanceRemove, instance)

      del instance

    multinode_tests = [

      ('instance-add-drbd-disk',

       qa_instance.TestInstanceAddWithDrbdDisk),

    ]

    for name, func in multinode_tests:

      if qa_config.TestEnabled(name):

        snode = qa_config.AcquireNode(exclude=pnode)

        try:

          instance = RunTest(func, pnode, snode)

          RunCommonInstanceTests(instance)

          RunExportImportTests(instance, pnode)

          RunHardwareFailureTests(instance, pnode, snode)

          RunTest(qa_instance.TestInstanceRemove, instance)

          del instance

        finally:

          qa_config.ReleaseNode(snode)

  finally:

    qa_config.ReleaseNode(pnode)

  RunTest(qa_node.TestNodeRemoveAll)

  if qa_config.TestEnabled('cluster-destroy'):

    RunTest(qa_cluster.TestClusterDestroy)

if __name__ == '__main__':

  main()