Synnefo » snf-ganeti » ganeti-local

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"""QA tests for node groups.

"""

from ganeti import constants

from ganeti import query

from ganeti import utils

import qa_config

import qa_utils

from qa_utils import AssertCommand, AssertEqual, GetCommandOutput

def GetDefaultGroup():

  """Returns the default node group.

  """

  groups = qa_config.get("groups", {})

  return groups.get("group-with-nodes", constants.INITIAL_NODE_GROUP_NAME)

def TestGroupAddRemoveRename():

  """gnt-group add/remove/rename"""

  existing_group_with_nodes = GetDefaultGroup()

  (group1, group2, group3) = qa_utils.GetNonexistentGroups(3)

  AssertCommand(["gnt-group", "add", group1])

  AssertCommand(["gnt-group", "add", group2])

  AssertCommand(["gnt-group", "add", group2], fail=True)

  AssertCommand(["gnt-group", "add", existing_group_with_nodes], fail=True)

  AssertCommand(["gnt-group", "rename", group1, group2], fail=True)

  AssertCommand(["gnt-group", "rename", group1, group3])

  try:

    AssertCommand(["gnt-group", "rename", existing_group_with_nodes, group1])

    AssertCommand(["gnt-group", "remove", group2])

    AssertCommand(["gnt-group", "remove", group3])

    AssertCommand(["gnt-group", "remove", group1], fail=True)

  finally:

    # Try to ensure idempotency re groups that already existed.

    AssertCommand(["gnt-group", "rename", group1, existing_group_with_nodes])

def TestGroupAddWithOptions():

  """gnt-group add with options"""

  (group1, ) = qa_utils.GetNonexistentGroups(1)

  AssertCommand(["gnt-group", "add", "--alloc-policy", "notvalid", group1],

                fail=True)

  AssertCommand(["gnt-group", "add", "--alloc-policy", "last_resort",

                 "--node-parameters", "oob_program=/bin/true", group1])

  AssertCommand(["gnt-group", "remove", group1])

def _TestGroupModifyISpecs(groupname):

  # Get the ipolicy command (from the cluster config)

  mnode = qa_config.GetMasterNode()

  addcmd = GetCommandOutput(mnode.primary, utils.ShellQuoteArgs([

    "gnt-group", "show-ispecs-cmd", "--include-defaults", groupname,

    ]))

  modcmd = ["gnt-group", "modify"]

  opts = addcmd.split()

  assert opts[0:2] == ["gnt-group", "add"]

  for k in range(2, len(opts) - 1):

    if opts[k].startswith("--ipolicy-"):

      assert k + 2 <= len(opts)

      modcmd.extend(opts[k:k + 2])

  modcmd.append(groupname)

  # Apply the ipolicy to the group and verify the result

  AssertCommand(modcmd)

  new_addcmd = GetCommandOutput(mnode.primary, utils.ShellQuoteArgs([

    "gnt-group", "show-ispecs-cmd", groupname,

    ]))

  AssertEqual(addcmd, new_addcmd)

def _TestGroupModifyIPolicy(groupname):

  _TestGroupModifyISpecs(groupname)

  AssertCommand(["gnt-group", "modify", "--ipolicy-vcpu-ratio",

                 "3.5", groupname])

  AssertCommand(["gnt-group", "modify", "--ipolicy-vcpu-ratio",

                 "default", groupname])

def TestGroupModify():

  """gnt-group modify"""

  (group1, ) = qa_utils.GetNonexistentGroups(1)

  AssertCommand(["gnt-group", "add", group1])

  try:

    _TestGroupModifyIPolicy(group1)

    AssertCommand(["gnt-group", "modify", "--alloc-policy", "unallocable",

                   "--node-parameters", "oob_program=/bin/false", group1])

    AssertCommand(["gnt-group", "modify",

                   "--alloc-policy", "notvalid", group1], fail=True)

    AssertCommand(["gnt-group", "modify",

                   "--node-parameters", "spindle_count=10", group1])

    if qa_config.TestEnabled("htools"):

      AssertCommand(["hbal", "-L", "-G", group1])

    AssertCommand(["gnt-group", "modify",

                   "--node-parameters", "spindle_count=default", group1])

  finally:

    AssertCommand(["gnt-group", "remove", group1])

def TestGroupList():

  """gnt-group list"""

  qa_utils.GenericQueryTest("gnt-group", query.GROUP_FIELDS.keys())

def TestGroupListFields():

  """gnt-group list-fields"""

  qa_utils.GenericQueryFieldsTest("gnt-group", query.GROUP_FIELDS.keys())

def TestAssignNodesIncludingSplit(orig_group, node1, node2):

  """gnt-group assign-nodes --force

  Expects node1 and node2 to be primary and secondary for a common instance.

  """

  assert node1 != node2

  (other_group, ) = qa_utils.GetNonexistentGroups(1)

  master_node = qa_config.GetMasterNode().primary

  def AssertInGroup(group, nodes):

    real_output = GetCommandOutput(master_node,

                                   "gnt-node list --no-headers -o group " +

                                   utils.ShellQuoteArgs(nodes))

    AssertEqual(real_output.splitlines(), [group] * len(nodes))

  AssertInGroup(orig_group, [node1, node2])

  AssertCommand(["gnt-group", "add", other_group])

  try:

    AssertCommand(["gnt-group", "assign-nodes", other_group, node1, node2])

    AssertInGroup(other_group, [node1, node2])

    # This should fail because moving node1 to orig_group would leave their

    # common instance split between orig_group and other_group.

    AssertCommand(["gnt-group", "assign-nodes", orig_group, node1], fail=True)

    AssertInGroup(other_group, [node1, node2])

    AssertCommand(["gnt-group", "assign-nodes", "--force", orig_group, node1])

    AssertInGroup(orig_group, [node1])

    AssertInGroup(other_group, [node2])

    AssertCommand(["gnt-group", "assign-nodes", orig_group, node2])

    AssertInGroup(orig_group, [node1, node2])

  finally:

    AssertCommand(["gnt-group", "remove", other_group])