Synnefo » snf-ganeti

	test/cfgupgrade_unittest.py \

#!/usr/bin/python

#

# Copyright (C) 2010 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 testing tools/cfgupgrade"""

import os

import sys

import unittest

import shutil

import tempfile

import operator

from ganeti import constants

from ganeti import utils

from ganeti import errors

from ganeti import serializer

import testutils

def _RunUpgrade(path, dry_run, no_verify):

  cmd = [sys.executable, "%s/tools/cfgupgrade" % testutils.GetSourceDir(),

         "--debug", "--force", "--path=%s" % path]

  if dry_run:

    cmd.append("--dry-run")

  if no_verify:

    cmd.append("--no-verify")

  result = utils.RunCmd(cmd, cwd=os.getcwd())

  if result.failed:

    raise Exception("cfgupgrade failed: %s, output %r" %

                    (result.fail_reason, result.output))

class TestCfgupgrade(unittest.TestCase):

  def setUp(self):

    self.tmpdir = tempfile.mkdtemp()

    self.config_path = utils.PathJoin(self.tmpdir, "config.data")

    self.noded_cert_path = utils.PathJoin(self.tmpdir, "server.pem")

    self.rapi_cert_path = utils.PathJoin(self.tmpdir, "rapi.pem")

    self.known_hosts_path = utils.PathJoin(self.tmpdir, "known_hosts")

    self.confd_hmac_path = utils.PathJoin(self.tmpdir, "hmac.key")

    self.cds_path = utils.PathJoin(self.tmpdir, "cluster-domain-secret")

  def tearDown(self):

    shutil.rmtree(self.tmpdir)

  def _LoadConfig(self):

    return serializer.LoadJson(utils.ReadFile(self.config_path))

  def _CreateValidConfigDir(self):

    utils.WriteFile(self.noded_cert_path, data="")

    utils.WriteFile(self.known_hosts_path, data="")

  def testNoConfigDir(self):

    self.assertFalse(utils.ListVisibleFiles(self.tmpdir))

    self.assertRaises(Exception, _RunUpgrade, self.tmpdir, False, True)

    self.assertRaises(Exception, _RunUpgrade, self.tmpdir, True, True)

  def testInconsistentConfig(self):

    self._CreateValidConfigDir()

    # There should be no "config_version"

    cfg = {

      "version": 0,

      "cluster": {

        "config_version": 0,

        },

      }

    utils.WriteFile(self.config_path, data=serializer.DumpJson(cfg))

    self.assertRaises(Exception, _RunUpgrade, self.tmpdir, False, True)

  def testInvalidConfig(self):

    self._CreateValidConfigDir()

    # Missing version from config

    utils.WriteFile(self.config_path, data=serializer.DumpJson({}))

    self.assertRaises(Exception, _RunUpgrade, self.tmpdir, False, True)

  def _TestSimpleUpgrade(self, from_version, dry_run):

    cfg = {

      "version": from_version,

      "cluster": {},

      }

    self._CreateValidConfigDir()

    utils.WriteFile(self.config_path, data=serializer.DumpJson(cfg))

    self.assertFalse(os.path.isfile(self.rapi_cert_path))

    self.assertFalse(os.path.isfile(self.confd_hmac_path))

    self.assertFalse(os.path.isfile(self.cds_path))

    _RunUpgrade(self.tmpdir, dry_run, True)

    if dry_run:

      expversion = from_version

      checkfn = operator.not_

    else:

      expversion = constants.CONFIG_VERSION

      checkfn = operator.truth

    self.assert_(checkfn(os.path.isfile(self.rapi_cert_path)))

    self.assert_(checkfn(os.path.isfile(self.confd_hmac_path)))

    self.assert_(checkfn(os.path.isfile(self.cds_path)))

    newcfg = self._LoadConfig()

    self.assertEqual(newcfg["version"], expversion)

  def testUpgradeFrom_2_0(self):

    self._TestSimpleUpgrade(constants.BuildVersion(2, 0, 0), False)

  def testUpgradeFrom_2_1(self):

    self._TestSimpleUpgrade(constants.BuildVersion(2, 1, 0), False)

  def testUpgradeCurrent(self):

    self._TestSimpleUpgrade(constants.CONFIG_VERSION, False)

  def testUpgradeDryRunFrom_2_0(self):

    self._TestSimpleUpgrade(constants.BuildVersion(2, 0, 0), True)

  def testUpgradeDryRunFrom_2_1(self):

    self._TestSimpleUpgrade(constants.BuildVersion(2, 1, 0), True)

  def testUpgradeCurrentDryRun(self):

    self._TestSimpleUpgrade(constants.CONFIG_VERSION, True)

if __name__ == "__main__":

  testutils.GanetiTestProgram()