Synnefo » snf-ganeti

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"""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, group=None):

  if not readd and node.added:

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

  elif readd and not node.added:

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

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

  if node.secondary:

    cmd.append("--secondary-ip=%s" % node.secondary)

  if readd:

    cmd.append("--readd")

  if group is not None:

    cmd.extend(["--node-group", group])

  cmd.append(node.primary)

  AssertCommand(cmd)

  if readd:

    assert node.added

  else:

    node.MarkAdded()

def NodeRemove(node):

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

  node.MarkRemoved()

def MakeNodeOffline(node, value):

  """gnt-node modify --offline=value"""

  # value in ["yes", "no"]

  AssertCommand(["gnt-node", "modify", "--offline", value, node.primary])

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.MarkAdded()

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()

  # FIXME: test all storage_types in constants.STORAGE_TYPES

  # as soon as they are implemented.

  enabled_storage_types = qa_config.GetEnabledStorageTypes()

  testable_storage_types = list(set(enabled_storage_types).intersection(

      set([constants.ST_FILE, constants.ST_LVM_VG, constants.ST_LVM_PV])))

  for storage_type in testable_storage_types:

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

    # Test simple list

    AssertCommand(cmd)

    # Test all storage fields

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

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

    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 TestNodeMigrate(node, node2):

  """gnt-node migrate"""

  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.")

  # Migrate to secondary node

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

  # ... and back again.

  AssertCommand(["gnt-node", "migrate", "-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:

    node3.Release()

def TestNodeModify(node):

  """gnt-node modify"""

  # make sure enough master candidates will be available by disabling the

  # master candidate role first with --auto-promote

  AssertCommand(["gnt-node", "modify", "--master-candidate=no",

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

  # now it's save to force-remove the master candidate role

  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", node.primary])

  # Test setting secondary IP address

  AssertCommand(["gnt-node", "modify", "--secondary-ip=%s" % node.secondary,

                 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,

                                     tty=False)

  AssertEqual(expected_args, output.strip())

def TestOutOfBand():

  """gnt-node power"""

  master = qa_config.GetMasterNode()

  node = qa_config.AcquireNode(exclude=master)

  master_name = master.primary

  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", "-f", "off", node_name])

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

    # Power off on master without options should fail

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

    # With force master it should still fail

    AssertCommand(["gnt-node", "power", "-f", "--ignore-status", "off",

                   master_name],

                  fail=True)

    # 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", "-f", "cycle", node_name])

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

    # Those commands should fail as they expect output which isn't provided yet

    # But they 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)

    AssertCommand(["gnt-node", "health", node_name],

                  fail=True)

    _AssertOobCall(verify_path, "health %s" % full_node_name)

    AssertCommand(["gnt-node", "health"], fail=True)

    # Correct 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)

    _UpdateOobFile(data_path, serializer.DumpJson([["temp", "OK"],

                                                   ["disk0", "CRITICAL"]]))

    AssertCommand(["gnt-node", "health", node_name])

    _AssertOobCall(verify_path, "health %s" % full_node_name)

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

    # Those commands should fail as they expect no data regardless of exit 0

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

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

    try:

      AssertCommand(["gnt-node", "power", "-f", "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", "-f", "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", "-f", "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", "-f", "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)

    AssertCommand(["gnt-node", "health", node_name],

                  fail=True)

    _AssertOobCall(verify_path, "health %s" % full_node_name)

    AssertCommand(["gnt-node", "health"], fail=True)

    # 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", "-f", "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", "-f", "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)

    AssertCommand(["gnt-node", "health", node_name],

                  fail=True)

    _AssertOobCall(verify_path, "health %s" % full_node_name)

    AssertCommand(["gnt-node", "health"], fail=True)

    # 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())

def TestNodeListDrbd(node):

  """gnt-node list-drbd"""

  AssertCommand(["gnt-node", "list-drbd", node.primary])

def _BuildSetESCmd(action, value, node_name):

  cmd = ["gnt-node"]

  if action == "add":

    cmd.extend(["add", "--readd"])

  else:

    cmd.append("modify")

  cmd.extend(["--node-parameters", "exclusive_storage=%s" % value, node_name])

  return cmd

def TestExclStorSingleNode(node):

  """gnt-node add/modify cannot change the exclusive_storage flag.

  """

  for action in ["add", "modify"]:

    for value in (True, False, "default"):

      AssertCommand(_BuildSetESCmd(action, value, node.primary), fail=True)