root / qa / qa_group.py @ ec996117
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# Copyright (C) 2010, 2011, 2012 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""QA tests for node groups.
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"""
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from ganeti import constants |
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from ganeti import query |
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from ganeti import utils |
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import qa_config |
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import qa_utils |
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from qa_utils import AssertCommand, AssertEqual, GetCommandOutput |
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def GetDefaultGroup(): |
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"""Returns the default node group.
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"""
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groups = qa_config.get("groups", {})
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return groups.get("group-with-nodes", constants.INITIAL_NODE_GROUP_NAME) |
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def TestGroupAddRemoveRename(): |
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"""gnt-group add/remove/rename"""
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existing_group_with_nodes = GetDefaultGroup() |
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(group1, group2, group3) = qa_utils.GetNonexistentGroups(3)
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AssertCommand(["gnt-group", "add", group1]) |
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AssertCommand(["gnt-group", "add", group2]) |
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AssertCommand(["gnt-group", "add", group2], fail=True) |
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AssertCommand(["gnt-group", "add", existing_group_with_nodes], fail=True) |
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AssertCommand(["gnt-group", "rename", group1, group2], fail=True) |
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AssertCommand(["gnt-group", "rename", group1, group3]) |
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try:
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AssertCommand(["gnt-group", "rename", existing_group_with_nodes, group1]) |
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AssertCommand(["gnt-group", "remove", group2]) |
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AssertCommand(["gnt-group", "remove", group3]) |
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AssertCommand(["gnt-group", "remove", group1], fail=True) |
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finally:
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# Try to ensure idempotency re groups that already existed.
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AssertCommand(["gnt-group", "rename", group1, existing_group_with_nodes]) |
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def TestGroupAddWithOptions(): |
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"""gnt-group add with options"""
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(group1, ) = qa_utils.GetNonexistentGroups(1)
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AssertCommand(["gnt-group", "add", "--alloc-policy", "notvalid", group1], |
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fail=True)
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AssertCommand(["gnt-group", "add", "--alloc-policy", "last_resort", |
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"--node-parameters", "oob_program=/bin/true", group1]) |
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AssertCommand(["gnt-group", "remove", group1]) |
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def _GetGroupIPolicy(groupname): |
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"""Return the run-time values of the cluster-level instance policy.
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@type groupname: string
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@param groupname: node group name
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@rtype: tuple
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@return: (policy, specs), where:
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- policy is a dictionary of the policy values, instance specs excluded
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- specs is dict of dict, specs[key][par] is a spec value, where key is
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"min" or "max"
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"""
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info = qa_utils.GetObjectInfo(["gnt-group", "info", groupname]) |
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assert len(info) == 1 |
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policy = info[0]["Instance policy"] |
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(ret_policy, ret_specs) = qa_utils.ParseIPolicy(policy) |
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# Sanity checks
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assert "min" in ret_specs and "max" in ret_specs |
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assert len(ret_policy) > 0 |
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return (ret_policy, ret_specs)
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def _TestGroupSetISpecs(groupname, new_specs=None, diff_specs=None, |
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fail=False, old_values=None): |
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"""Change instance specs on a group.
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At most one of new_specs or diff_specs can be specified.
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@type groupname: string
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@param groupname: group name
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@type new_specs: dict
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@param new_specs: new complete specs, in the same format returned by
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L{_GetGroupIPolicy}
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@type diff_specs: dict
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@param diff_specs: diff_specs[key][par], where key is "min", "max". It
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can be an incomplete specifications or an empty dictionary.
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@type fail: bool
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@param fail: if the change is expected to fail
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@type old_values: tuple
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@param old_values: (old_policy, old_specs), as returned by
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L{_GetGroupIPolicy}
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@return: same as L{_GetGroupIPolicy}
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"""
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build_cmd = lambda opts: ["gnt-group", "modify"] + opts + [groupname] |
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get_policy = lambda: _GetGroupIPolicy(groupname)
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return qa_utils.TestSetISpecs(
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new_specs=new_specs, diff_specs=diff_specs, |
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get_policy_fn=get_policy, build_cmd_fn=build_cmd, |
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fail=fail, old_values=old_values) |
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def _TestGroupModifyISpecs(groupname): |
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# This test is built on the assumption that the default ipolicy holds for
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# the node group under test
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old_values = _GetGroupIPolicy(groupname) |
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samevals = dict((p, 4) for p in constants.ISPECS_PARAMETERS) |
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base_specs = {"min": samevals, "max": samevals} |
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mod_values = _TestGroupSetISpecs(groupname, new_specs=base_specs, |
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old_values=old_values) |
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for par in constants.ISPECS_PARAMETERS: |
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# First make sure that the test works with good values
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good_specs = {"min": {par: 8}, "max": {par: 8}} |
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mod_values = _TestGroupSetISpecs(groupname, diff_specs=good_specs, |
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old_values=mod_values) |
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bad_specs = {"min": {par: 8}, "max": {par: 4}} |
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_TestGroupSetISpecs(groupname, diff_specs=bad_specs, fail=True,
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old_values=mod_values) |
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AssertCommand(["gnt-group", "modify", "--ipolicy-bounds-specs", "default", |
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groupname]) |
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AssertEqual(_GetGroupIPolicy(groupname), old_values) |
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# Get the ipolicy command (from the cluster config)
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mnode = qa_config.GetMasterNode() |
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addcmd = GetCommandOutput(mnode.primary, utils.ShellQuoteArgs([ |
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"gnt-group", "show-ispecs-cmd", "--include-defaults", groupname, |
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])) |
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modcmd = ["gnt-group", "modify"] |
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opts = addcmd.split() |
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assert opts[0:2] == ["gnt-group", "add"] |
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for k in range(2, len(opts) - 1): |
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if opts[k].startswith("--ipolicy-"): |
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assert k + 2 <= len(opts) |
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modcmd.extend(opts[k:k + 2])
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modcmd.append(groupname) |
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# Apply the ipolicy to the group and verify the result
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AssertCommand(modcmd) |
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new_addcmd = GetCommandOutput(mnode.primary, utils.ShellQuoteArgs([ |
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"gnt-group", "show-ispecs-cmd", groupname, |
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])) |
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AssertEqual(addcmd, new_addcmd) |
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def _TestGroupModifyIPolicy(groupname): |
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_TestGroupModifyISpecs(groupname) |
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# We assume that the default ipolicy holds
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(old_policy, old_specs) = _GetGroupIPolicy(groupname) |
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for (par, setval, iname, expval) in [ |
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("vcpu-ratio", 1.5, None, 1.5), |
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("spindle-ratio", 1.5, None, 1.5), |
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("disk-templates", constants.DT_PLAIN,
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"enabled disk templates", constants.DT_PLAIN)
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]: |
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if not iname: |
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iname = par |
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build_cmdline = lambda val: ["gnt-group", "modify", "--ipolicy-" + par, |
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str(val), groupname]
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AssertCommand(build_cmdline(setval)) |
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(new_policy, new_specs) = _GetGroupIPolicy(groupname) |
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AssertEqual(new_specs, old_specs) |
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for (p, val) in new_policy.items(): |
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if p == iname:
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AssertEqual(val, expval) |
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else:
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AssertEqual(val, old_policy[p]) |
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AssertCommand(build_cmdline("default"))
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(new_policy, new_specs) = _GetGroupIPolicy(groupname) |
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AssertEqual(new_specs, old_specs) |
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AssertEqual(new_policy, old_policy) |
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def TestGroupModify(): |
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"""gnt-group modify"""
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(group1, ) = qa_utils.GetNonexistentGroups(1)
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AssertCommand(["gnt-group", "add", group1]) |
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try:
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_TestGroupModifyIPolicy(group1) |
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AssertCommand(["gnt-group", "modify", "--alloc-policy", "unallocable", |
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"--node-parameters", "oob_program=/bin/false", group1]) |
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AssertCommand(["gnt-group", "modify", |
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"--alloc-policy", "notvalid", group1], fail=True) |
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AssertCommand(["gnt-group", "modify", |
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"--node-parameters", "spindle_count=10", group1]) |
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if qa_config.TestEnabled("htools"): |
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AssertCommand(["hbal", "-L", "-G", group1]) |
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AssertCommand(["gnt-group", "modify", |
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"--node-parameters", "spindle_count=default", group1]) |
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finally:
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AssertCommand(["gnt-group", "remove", group1]) |
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def TestGroupList(): |
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"""gnt-group list"""
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qa_utils.GenericQueryTest("gnt-group", query.GROUP_FIELDS.keys())
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def TestGroupListFields(): |
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"""gnt-group list-fields"""
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qa_utils.GenericQueryFieldsTest("gnt-group", query.GROUP_FIELDS.keys())
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def TestAssignNodesIncludingSplit(orig_group, node1, node2): |
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"""gnt-group assign-nodes --force
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Expects node1 and node2 to be primary and secondary for a common instance.
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"""
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assert node1 != node2
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(other_group, ) = qa_utils.GetNonexistentGroups(1)
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master_node = qa_config.GetMasterNode().primary |
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def AssertInGroup(group, nodes): |
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real_output = GetCommandOutput(master_node, |
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"gnt-node list --no-headers -o group " +
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utils.ShellQuoteArgs(nodes)) |
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AssertEqual(real_output.splitlines(), [group] * len(nodes))
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AssertInGroup(orig_group, [node1, node2]) |
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AssertCommand(["gnt-group", "add", other_group]) |
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try:
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AssertCommand(["gnt-group", "assign-nodes", other_group, node1, node2]) |
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AssertInGroup(other_group, [node1, node2]) |
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# This should fail because moving node1 to orig_group would leave their
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# common instance split between orig_group and other_group.
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AssertCommand(["gnt-group", "assign-nodes", orig_group, node1], fail=True) |
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AssertInGroup(other_group, [node1, node2]) |
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AssertCommand(["gnt-group", "assign-nodes", "--force", orig_group, node1]) |
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AssertInGroup(orig_group, [node1]) |
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AssertInGroup(other_group, [node2]) |
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AssertCommand(["gnt-group", "assign-nodes", orig_group, node2]) |
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AssertInGroup(orig_group, [node1, node2]) |
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finally:
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AssertCommand(["gnt-group", "remove", other_group]) |