Synnefo » snf-ganeti

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# Copyright (C) 2007, 2011 Google Inc.

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# General Public License for more details.

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# 02110-1301, USA.

"""Node-related QA tests.

"""

from ganeti import utils

from ganeti import constants

from ganeti import query

from ganeti import serializer

import qa_config

import qa_error

import qa_utils

from qa_utils import AssertCommand, AssertEqual

def _NodeAdd(node, readd=False):

  if not readd and node.get('_added', False):

    raise qa_error.Error("Node %s already in cluster" % node['primary'])

  elif readd and not node.get('_added', False):

    raise qa_error.Error("Node %s not yet in cluster" % node['primary'])

  cmd = ['gnt-node', 'add', "--no-ssh-key-check"]

  if node.get('secondary', None):

    cmd.append('--secondary-ip=%s' % node['secondary'])

  if readd:

    cmd.append('--readd')

  cmd.append(node['primary'])

  AssertCommand(cmd)

  node['_added'] = True

def _NodeRemove(node):

  AssertCommand(["gnt-node", "remove", node["primary"]])

  node['_added'] = False

def TestNodeAddAll():

  """Adding all nodes to cluster."""

  master = qa_config.GetMasterNode()

  for node in qa_config.get('nodes'):

    if node != master:

      _NodeAdd(node, readd=False)

def MarkNodeAddedAll():

  """Mark all nodes as added.

  This is useful if we don't create the cluster ourselves (in qa).

  """

  master = qa_config.GetMasterNode()

  for node in qa_config.get('nodes'):

    if node != master:

      node['_added'] = True

def TestNodeRemoveAll():

  """Removing all nodes from cluster."""

  master = qa_config.GetMasterNode()

  for node in qa_config.get('nodes'):

    if node != master:

      _NodeRemove(node)

def TestNodeReadd(node):

  """gnt-node add --readd"""

  _NodeAdd(node, readd=True)

def TestNodeInfo():

  """gnt-node info"""

  AssertCommand(["gnt-node", "info"])

def TestNodeVolumes():

  """gnt-node volumes"""

  AssertCommand(["gnt-node", "volumes"])

def TestNodeStorage():

  """gnt-node storage"""

  master = qa_config.GetMasterNode()

  for storage_type in constants.VALID_STORAGE_TYPES:

    # Test simple list

    AssertCommand(["gnt-node", "list-storage", "--storage-type", storage_type])

    # Test all storage fields

    cmd = ["gnt-node", "list-storage", "--storage-type", storage_type,

           "--output=%s" % ",".join(list(constants.VALID_STORAGE_FIELDS) +

                                    [constants.SF_NODE, constants.SF_TYPE])]

    AssertCommand(cmd)

    # Get list of valid storage devices

    cmd = ["gnt-node", "list-storage", "--storage-type", storage_type,

           "--output=node,name,allocatable", "--separator=|",

           "--no-headers"]

    output = qa_utils.GetCommandOutput(master["primary"],

                                       utils.ShellQuoteArgs(cmd))

    # Test with up to two devices

    testdevcount = 2

    for line in output.splitlines()[:testdevcount]:

      (node_name, st_name, st_allocatable) = line.split("|")

      # Dummy modification without any changes

      cmd = ["gnt-node", "modify-storage", node_name, storage_type, st_name]

      AssertCommand(cmd)

      # Make sure we end up with the same value as before

      if st_allocatable.lower() == "y":

        test_allocatable = ["no", "yes"]

      else:

        test_allocatable = ["yes", "no"]

      fail = (constants.SF_ALLOCATABLE not in

              constants.MODIFIABLE_STORAGE_FIELDS.get(storage_type, []))

      for i in test_allocatable:

        AssertCommand(["gnt-node", "modify-storage", "--allocatable", i,

                       node_name, storage_type, st_name], fail=fail)

        # Verify list output

        cmd = ["gnt-node", "list-storage", "--storage-type", storage_type,

               "--output=name,allocatable", "--separator=|",

               "--no-headers", node_name]

        listout = qa_utils.GetCommandOutput(master["primary"],

                                            utils.ShellQuoteArgs(cmd))

        for line in listout.splitlines():

          (vfy_name, vfy_allocatable) = line.split("|")

          if vfy_name == st_name and not fail:

            AssertEqual(vfy_allocatable, i[0].upper())

          else:

            AssertEqual(vfy_allocatable, st_allocatable)

      # Test repair functionality

      fail = (constants.SO_FIX_CONSISTENCY not in

              constants.VALID_STORAGE_OPERATIONS.get(storage_type, []))

      AssertCommand(["gnt-node", "repair-storage", node_name,

                     storage_type, st_name], fail=fail)

def TestNodeFailover(node, node2):

  """gnt-node failover"""

  if qa_utils.GetNodeInstances(node2, secondaries=False):

    raise qa_error.UnusableNodeError("Secondary node has at least one"

                                     " primary instance. This test requires"

                                     " it to have no primary instances.")

  # Fail over to secondary node

  AssertCommand(["gnt-node", "failover", "-f", node["primary"]])

  # ... and back again.

  AssertCommand(["gnt-node", "failover", "-f", node2["primary"]])

def TestNodeEvacuate(node, node2):

  """gnt-node evacuate"""

  node3 = qa_config.AcquireNode(exclude=[node, node2])

  try:

    if qa_utils.GetNodeInstances(node3, secondaries=True):

      raise qa_error.UnusableNodeError("Evacuation node has at least one"

                                       " secondary instance. This test requires"

                                       " it to have no secondary instances.")

    # Evacuate all secondary instances

    AssertCommand(["gnt-node", "evacuate", "-f",

                   "--new-secondary=%s" % node3["primary"], node2["primary"]])

    # ... and back again.

    AssertCommand(["gnt-node", "evacuate", "-f",

                   "--new-secondary=%s" % node2["primary"], node3["primary"]])

  finally:

    qa_config.ReleaseNode(node3)

def TestNodeModify(node):

  """gnt-node modify"""

  for flag in ["master-candidate", "drained", "offline"]:

    for value in ["yes", "no"]:

      AssertCommand(["gnt-node", "modify", "--force",

                     "--%s=%s" % (flag, value), node["primary"]])

  AssertCommand(["gnt-node", "modify", "--master-candidate=yes",

                 "--auto-promote", node["primary"]])

def _CreateOobScriptStructure():

  """Create a simple OOB handling script and its structure."""

  master = qa_config.GetMasterNode()

  data_path = qa_utils.UploadData(master["primary"], "")

  verify_path = qa_utils.UploadData(master["primary"], "")

  exit_code_path = qa_utils.UploadData(master["primary"], "")

  oob_script = (("#!/bin/bash\n"

                 "echo \"$@\" > %s\n"

                 "cat %s\n"

                 "exit $(< %s)\n") %

                (utils.ShellQuote(verify_path), utils.ShellQuote(data_path),

                 utils.ShellQuote(exit_code_path)))

  oob_path = qa_utils.UploadData(master["primary"], oob_script, mode=0700)

  return [oob_path, verify_path, data_path, exit_code_path]

def _UpdateOobFile(path, data):

  """Updates the data file with data."""

  master = qa_config.GetMasterNode()

  qa_utils.UploadData(master["primary"], data, filename=path)

def _AssertOobCall(verify_path, expected_args):

  """Assert the OOB call was performed with expetected args."""

  master = qa_config.GetMasterNode()

  verify_output_cmd = utils.ShellQuoteArgs(["cat", verify_path])

  output = qa_utils.GetCommandOutput(master["primary"], verify_output_cmd)

  AssertEqual(expected_args, output.strip())

def TestOutOfBand():

  """gnt-node power"""

  master = qa_config.GetMasterNode()

  node = qa_config.AcquireNode(exclude=master)

  node_name = node["primary"]

  full_node_name = qa_utils.ResolveNodeName(node)

  (oob_path, verify_path,

   data_path, exit_code_path) = _CreateOobScriptStructure()

  try:

    AssertCommand(["gnt-cluster", "modify", "--node-parameters",

                   "oob_program=%s" % oob_path])

    # No data, exit 0

    _UpdateOobFile(exit_code_path, "0")

    AssertCommand(["gnt-node", "power", "on", node_name])

    _AssertOobCall(verify_path, "power-on %s" % full_node_name)

    AssertCommand(["gnt-node", "power", "off", node_name])

    _AssertOobCall(verify_path, "power-off %s" % full_node_name)

    # Verify we can't transform back to online when not yet powered on

    AssertCommand(["gnt-node", "modify", "-O", "no", node_name],

                  fail=True)

    # Now reset state

    AssertCommand(["gnt-node", "modify", "-O", "no", "--node-powered", "yes",

                   node_name])

    AssertCommand(["gnt-node", "power", "cycle", node_name])

    _AssertOobCall(verify_path, "power-cycle %s" % full_node_name)

    # This command should fail as it expects output which isn't provided yet

    # But it should have called the oob helper nevermind

    AssertCommand(["gnt-node", "power", "status", node_name],

                  fail=True)

    _AssertOobCall(verify_path, "power-status %s" % full_node_name)

    # Data, exit 0

    _UpdateOobFile(data_path, serializer.DumpJson({ "powered": True }))

    AssertCommand(["gnt-node", "power", "status", node_name])

    _AssertOobCall(verify_path, "power-status %s" % full_node_name)

    AssertCommand(["gnt-node", "power", "on", node_name], fail=True)

    _AssertOobCall(verify_path, "power-on %s" % full_node_name)

    try:

      AssertCommand(["gnt-node", "power", "off", node_name], fail=True)

      _AssertOobCall(verify_path, "power-off %s" % full_node_name)

    finally:

      AssertCommand(["gnt-node", "modify", "-O", "no", node_name])

    AssertCommand(["gnt-node", "power", "cycle", node_name], fail=True)

    _AssertOobCall(verify_path, "power-cycle %s" % full_node_name)

    # Data, exit 1 (all should fail)

    _UpdateOobFile(exit_code_path, "1")

    AssertCommand(["gnt-node", "power", "on", node_name], fail=True)

    _AssertOobCall(verify_path, "power-on %s" % full_node_name)

    try:

      AssertCommand(["gnt-node", "power", "off", node_name], fail=True)

      _AssertOobCall(verify_path, "power-off %s" % full_node_name)

    finally:

      AssertCommand(["gnt-node", "modify", "-O", "no", node_name])

    AssertCommand(["gnt-node", "power", "cycle", node_name], fail=True)

    _AssertOobCall(verify_path, "power-cycle %s" % full_node_name)

    AssertCommand(["gnt-node", "power", "status", node_name],

                  fail=True)

    _AssertOobCall(verify_path, "power-status %s" % full_node_name)

    # No data, exit 1 (all should fail)

    _UpdateOobFile(data_path, "")

    AssertCommand(["gnt-node", "power", "on", node_name], fail=True)

    _AssertOobCall(verify_path, "power-on %s" % full_node_name)

    try:

      AssertCommand(["gnt-node", "power", "off", node_name], fail=True)

      _AssertOobCall(verify_path, "power-off %s" % full_node_name)

    finally:

      AssertCommand(["gnt-node", "modify", "-O", "no", node_name])

    AssertCommand(["gnt-node", "power", "cycle", node_name], fail=True)

    _AssertOobCall(verify_path, "power-cycle %s" % full_node_name)

    AssertCommand(["gnt-node", "power", "status", node_name],

                  fail=True)

    _AssertOobCall(verify_path, "power-status %s" % full_node_name)

    # Different OOB script for node

    verify_path2 = qa_utils.UploadData(master["primary"], "")

    oob_script = ("#!/bin/sh\n"

                  "echo \"$@\" > %s\n") % verify_path2

    oob_path2 = qa_utils.UploadData(master["primary"], oob_script, mode=0700)

    try:

      AssertCommand(["gnt-node", "modify", "--node-parameters",

                     "oob_program=%s" % oob_path2, node_name])

      AssertCommand(["gnt-node", "power", "on", node_name])

      _AssertOobCall(verify_path2, "power-on %s" % full_node_name)

    finally:

      AssertCommand(["gnt-node", "modify", "--node-parameters",

                     "oob_program=default", node_name])

      AssertCommand(["rm", "-f", oob_path2, verify_path2])

  finally:

    AssertCommand(["gnt-cluster", "modify", "--node-parameters",

                   "oob_program="])

    AssertCommand(["rm", "-f", oob_path, verify_path, data_path,

                   exit_code_path])

def TestNodeList():

  """gnt-node list"""

  qa_utils.GenericQueryTest("gnt-node", query.NODE_FIELDS.keys())

def TestNodeListFields():

  """gnt-node list-fields"""

  qa_utils.GenericQueryFieldsTest("gnt-node", query.NODE_FIELDS.keys())