root / qa / qa_config.py @ 99f5fa44
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1 | c68d1f43 | Michael Hanselmann | #
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2 | c68d1f43 | Michael Hanselmann | #
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3 | c68d1f43 | Michael Hanselmann | |
4 | 906a0346 | Bernardo Dal Seno | # Copyright (C) 2007, 2011, 2012, 2013 Google Inc.
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5 | cec9845c | Michael Hanselmann | #
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6 | cec9845c | Michael Hanselmann | # This program is free software; you can redistribute it and/or modify
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7 | cec9845c | Michael Hanselmann | # it under the terms of the GNU General Public License as published by
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8 | cec9845c | Michael Hanselmann | # the Free Software Foundation; either version 2 of the License, or
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9 | cec9845c | Michael Hanselmann | # (at your option) any later version.
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10 | cec9845c | Michael Hanselmann | #
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11 | cec9845c | Michael Hanselmann | # This program is distributed in the hope that it will be useful, but
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12 | cec9845c | Michael Hanselmann | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | cec9845c | Michael Hanselmann | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | cec9845c | Michael Hanselmann | # General Public License for more details.
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15 | cec9845c | Michael Hanselmann | #
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16 | cec9845c | Michael Hanselmann | # You should have received a copy of the GNU General Public License
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17 | cec9845c | Michael Hanselmann | # along with this program; if not, write to the Free Software
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18 | cec9845c | Michael Hanselmann | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | cec9845c | Michael Hanselmann | # 02110-1301, USA.
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20 | cec9845c | Michael Hanselmann | |
21 | cec9845c | Michael Hanselmann | |
22 | cec9845c | Michael Hanselmann | """QA configuration.
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23 | cec9845c | Michael Hanselmann |
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24 | cec9845c | Michael Hanselmann | """
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25 | cec9845c | Michael Hanselmann | |
26 | c9e05005 | Michael Hanselmann | import os |
27 | cec9845c | Michael Hanselmann | |
28 | e7b6183b | Michael Hanselmann | from ganeti import constants |
29 | a705dc05 | Michael Hanselmann | from ganeti import utils |
30 | a705dc05 | Michael Hanselmann | from ganeti import serializer |
31 | 7d88f255 | Iustin Pop | from ganeti import compat |
32 | cec9845c | Michael Hanselmann | |
33 | cec9845c | Michael Hanselmann | import qa_error |
34 | cec9845c | Michael Hanselmann | |
35 | cec9845c | Michael Hanselmann | |
36 | c9e05005 | Michael Hanselmann | _INSTANCE_CHECK_KEY = "instance-check"
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37 | e7b6183b | Michael Hanselmann | _ENABLED_HV_KEY = "enabled-hypervisors"
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38 | f9329a6c | Michael Hanselmann | |
39 | 8a96c5a6 | Michael Hanselmann | #: QA configuration (L{_QaConfig})
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40 | 8a96c5a6 | Michael Hanselmann | _config = None
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41 | cec9845c | Michael Hanselmann | |
42 | cec9845c | Michael Hanselmann | |
43 | 6a654276 | Michael Hanselmann | class _QaInstance(object): |
44 | 6a654276 | Michael Hanselmann | __slots__ = [ |
45 | 6a654276 | Michael Hanselmann | "name",
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46 | 6a654276 | Michael Hanselmann | "nicmac",
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47 | 6a654276 | Michael Hanselmann | "used",
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48 | 6a654276 | Michael Hanselmann | "disk_template",
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49 | 6a654276 | Michael Hanselmann | ] |
50 | 6a654276 | Michael Hanselmann | |
51 | 6a654276 | Michael Hanselmann | def __init__(self, name, nicmac): |
52 | 6a654276 | Michael Hanselmann | """Initializes instances of this class.
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53 | 6a654276 | Michael Hanselmann |
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54 | 6a654276 | Michael Hanselmann | """
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55 | 6a654276 | Michael Hanselmann | self.name = name
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56 | 6a654276 | Michael Hanselmann | self.nicmac = nicmac
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57 | 6a654276 | Michael Hanselmann | self.used = None |
58 | 6a654276 | Michael Hanselmann | self.disk_template = None |
59 | 6a654276 | Michael Hanselmann | |
60 | 6a654276 | Michael Hanselmann | @classmethod
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61 | 6a654276 | Michael Hanselmann | def FromDict(cls, data): |
62 | 6a654276 | Michael Hanselmann | """Creates instance object from JSON dictionary.
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63 | 6a654276 | Michael Hanselmann |
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64 | 6a654276 | Michael Hanselmann | """
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65 | 6a654276 | Michael Hanselmann | nicmac = [] |
66 | 6a654276 | Michael Hanselmann | |
67 | 6a654276 | Michael Hanselmann | macaddr = data.get("nic.mac/0")
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68 | 6a654276 | Michael Hanselmann | if macaddr:
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69 | 6a654276 | Michael Hanselmann | nicmac.append(macaddr) |
70 | 6a654276 | Michael Hanselmann | |
71 | 6a654276 | Michael Hanselmann | return cls(name=data["name"], nicmac=nicmac) |
72 | 6a654276 | Michael Hanselmann | |
73 | 6f88e076 | Michael Hanselmann | def Release(self): |
74 | 6f88e076 | Michael Hanselmann | """Releases instance and makes it available again.
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75 | 6f88e076 | Michael Hanselmann |
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76 | 6f88e076 | Michael Hanselmann | """
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77 | 6f88e076 | Michael Hanselmann | assert self.used, \ |
78 | 6f88e076 | Michael Hanselmann | ("Instance '%s' was never acquired or released more than once" %
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79 | 6f88e076 | Michael Hanselmann | self.name)
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80 | 6f88e076 | Michael Hanselmann | |
81 | 6f88e076 | Michael Hanselmann | self.used = False |
82 | 6f88e076 | Michael Hanselmann | self.disk_template = None |
83 | 6f88e076 | Michael Hanselmann | |
84 | 6a654276 | Michael Hanselmann | def GetNicMacAddr(self, idx, default): |
85 | 6a654276 | Michael Hanselmann | """Returns MAC address for NIC.
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86 | 6a654276 | Michael Hanselmann |
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87 | 6a654276 | Michael Hanselmann | @type idx: int
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88 | 6a654276 | Michael Hanselmann | @param idx: NIC index
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89 | 6a654276 | Michael Hanselmann | @param default: Default value
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90 | 6a654276 | Michael Hanselmann |
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91 | 6a654276 | Michael Hanselmann | """
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92 | 6a654276 | Michael Hanselmann | if len(self.nicmac) > idx: |
93 | 6a654276 | Michael Hanselmann | return self.nicmac[idx] |
94 | 6a654276 | Michael Hanselmann | else:
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95 | 6a654276 | Michael Hanselmann | return default
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96 | 6a654276 | Michael Hanselmann | |
97 | 6a654276 | Michael Hanselmann | |
98 | dbdb0594 | Michael Hanselmann | class _QaNode(object): |
99 | dbdb0594 | Michael Hanselmann | __slots__ = [ |
100 | dbdb0594 | Michael Hanselmann | "primary",
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101 | dbdb0594 | Michael Hanselmann | "secondary",
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102 | dbdb0594 | Michael Hanselmann | "_added",
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103 | 565cb4bf | Michael Hanselmann | "_use_count",
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104 | dbdb0594 | Michael Hanselmann | ] |
105 | dbdb0594 | Michael Hanselmann | |
106 | dbdb0594 | Michael Hanselmann | def __init__(self, primary, secondary): |
107 | dbdb0594 | Michael Hanselmann | """Initializes instances of this class.
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108 | dbdb0594 | Michael Hanselmann |
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109 | dbdb0594 | Michael Hanselmann | """
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110 | dbdb0594 | Michael Hanselmann | self.primary = primary
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111 | dbdb0594 | Michael Hanselmann | self.secondary = secondary
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112 | dbdb0594 | Michael Hanselmann | self._added = False |
113 | 565cb4bf | Michael Hanselmann | self._use_count = 0 |
114 | dbdb0594 | Michael Hanselmann | |
115 | dbdb0594 | Michael Hanselmann | @classmethod
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116 | dbdb0594 | Michael Hanselmann | def FromDict(cls, data): |
117 | dbdb0594 | Michael Hanselmann | """Creates node object from JSON dictionary.
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118 | dbdb0594 | Michael Hanselmann |
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119 | dbdb0594 | Michael Hanselmann | """
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120 | dbdb0594 | Michael Hanselmann | return cls(primary=data["primary"], secondary=data.get("secondary")) |
121 | dbdb0594 | Michael Hanselmann | |
122 | dbdb0594 | Michael Hanselmann | def Use(self): |
123 | dbdb0594 | Michael Hanselmann | """Marks a node as being in use.
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124 | dbdb0594 | Michael Hanselmann |
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125 | dbdb0594 | Michael Hanselmann | """
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126 | 565cb4bf | Michael Hanselmann | assert self._use_count >= 0 |
127 | dbdb0594 | Michael Hanselmann | |
128 | 565cb4bf | Michael Hanselmann | self._use_count += 1 |
129 | dbdb0594 | Michael Hanselmann | |
130 | dbdb0594 | Michael Hanselmann | return self |
131 | dbdb0594 | Michael Hanselmann | |
132 | 565cb4bf | Michael Hanselmann | def Release(self): |
133 | 565cb4bf | Michael Hanselmann | """Release a node (opposite of L{Use}).
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134 | 565cb4bf | Michael Hanselmann |
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135 | 565cb4bf | Michael Hanselmann | """
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136 | 565cb4bf | Michael Hanselmann | assert self.use_count > 0 |
137 | 565cb4bf | Michael Hanselmann | |
138 | 565cb4bf | Michael Hanselmann | self._use_count -= 1 |
139 | 565cb4bf | Michael Hanselmann | |
140 | dbdb0594 | Michael Hanselmann | def MarkAdded(self): |
141 | dbdb0594 | Michael Hanselmann | """Marks node as having been added to a cluster.
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142 | dbdb0594 | Michael Hanselmann |
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143 | dbdb0594 | Michael Hanselmann | """
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144 | dbdb0594 | Michael Hanselmann | assert not self._added |
145 | dbdb0594 | Michael Hanselmann | self._added = True |
146 | dbdb0594 | Michael Hanselmann | |
147 | dbdb0594 | Michael Hanselmann | def MarkRemoved(self): |
148 | dbdb0594 | Michael Hanselmann | """Marks node as having been removed from a cluster.
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149 | dbdb0594 | Michael Hanselmann |
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150 | dbdb0594 | Michael Hanselmann | """
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151 | dbdb0594 | Michael Hanselmann | assert self._added |
152 | dbdb0594 | Michael Hanselmann | self._added = False |
153 | dbdb0594 | Michael Hanselmann | |
154 | dbdb0594 | Michael Hanselmann | @property
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155 | dbdb0594 | Michael Hanselmann | def added(self): |
156 | dbdb0594 | Michael Hanselmann | """Returns whether a node is part of a cluster.
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157 | dbdb0594 | Michael Hanselmann |
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158 | dbdb0594 | Michael Hanselmann | """
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159 | dbdb0594 | Michael Hanselmann | return self._added |
160 | dbdb0594 | Michael Hanselmann | |
161 | 565cb4bf | Michael Hanselmann | @property
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162 | 565cb4bf | Michael Hanselmann | def use_count(self): |
163 | 565cb4bf | Michael Hanselmann | """Returns number of current uses (controlled by L{Use} and L{Release}).
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164 | 565cb4bf | Michael Hanselmann |
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165 | 565cb4bf | Michael Hanselmann | """
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166 | 565cb4bf | Michael Hanselmann | return self._use_count |
167 | 565cb4bf | Michael Hanselmann | |
168 | dbdb0594 | Michael Hanselmann | |
169 | 6a654276 | Michael Hanselmann | _RESOURCE_CONVERTER = { |
170 | 6a654276 | Michael Hanselmann | "instances": _QaInstance.FromDict,
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171 | dbdb0594 | Michael Hanselmann | "nodes": _QaNode.FromDict,
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172 | 6a654276 | Michael Hanselmann | } |
173 | 6a654276 | Michael Hanselmann | |
174 | 6a654276 | Michael Hanselmann | |
175 | 6a654276 | Michael Hanselmann | def _ConvertResources((key, value)): |
176 | 6a654276 | Michael Hanselmann | """Converts cluster resources in configuration to Python objects.
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177 | 6a654276 | Michael Hanselmann |
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178 | 6a654276 | Michael Hanselmann | """
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179 | 6a654276 | Michael Hanselmann | fn = _RESOURCE_CONVERTER.get(key, None)
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180 | 6a654276 | Michael Hanselmann | if fn:
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181 | 6a654276 | Michael Hanselmann | return (key, map(fn, value)) |
182 | 6a654276 | Michael Hanselmann | else:
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183 | 6a654276 | Michael Hanselmann | return (key, value)
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184 | 6a654276 | Michael Hanselmann | |
185 | 6a654276 | Michael Hanselmann | |
186 | 8a96c5a6 | Michael Hanselmann | class _QaConfig(object): |
187 | 8a96c5a6 | Michael Hanselmann | def __init__(self, data): |
188 | 8a96c5a6 | Michael Hanselmann | """Initializes instances of this class.
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189 | cec9845c | Michael Hanselmann |
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190 | 8a96c5a6 | Michael Hanselmann | """
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191 | 8a96c5a6 | Michael Hanselmann | self._data = data
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192 | 8a96c5a6 | Michael Hanselmann | |
193 | a08e181f | Michael Hanselmann | #: Cluster-wide run-time value of the exclusive storage flag
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194 | a08e181f | Michael Hanselmann | self._exclusive_storage = None |
195 | a08e181f | Michael Hanselmann | |
196 | 8a96c5a6 | Michael Hanselmann | @classmethod
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197 | 8a96c5a6 | Michael Hanselmann | def Load(cls, filename): |
198 | 8a96c5a6 | Michael Hanselmann | """Loads a configuration file and produces a configuration object.
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199 | 8a96c5a6 | Michael Hanselmann |
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200 | 8a96c5a6 | Michael Hanselmann | @type filename: string
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201 | 8a96c5a6 | Michael Hanselmann | @param filename: Path to configuration file
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202 | 8a96c5a6 | Michael Hanselmann | @rtype: L{_QaConfig}
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203 | 8a96c5a6 | Michael Hanselmann |
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204 | 8a96c5a6 | Michael Hanselmann | """
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205 | 8a96c5a6 | Michael Hanselmann | data = serializer.LoadJson(utils.ReadFile(filename)) |
206 | 8a96c5a6 | Michael Hanselmann | |
207 | 6a654276 | Michael Hanselmann | result = cls(dict(map(_ConvertResources, |
208 | 6a654276 | Michael Hanselmann | data.items()))) # pylint: disable=E1103
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209 | 8a96c5a6 | Michael Hanselmann | result.Validate() |
210 | 8a96c5a6 | Michael Hanselmann | |
211 | 8a96c5a6 | Michael Hanselmann | return result
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212 | 8a96c5a6 | Michael Hanselmann | |
213 | 8a96c5a6 | Michael Hanselmann | def Validate(self): |
214 | 8a96c5a6 | Michael Hanselmann | """Validates loaded configuration data.
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215 | 8a96c5a6 | Michael Hanselmann |
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216 | 8a96c5a6 | Michael Hanselmann | """
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217 | 8a96c5a6 | Michael Hanselmann | if not self.get("nodes"): |
218 | 8a96c5a6 | Michael Hanselmann | raise qa_error.Error("Need at least one node") |
219 | 8a96c5a6 | Michael Hanselmann | |
220 | 8a96c5a6 | Michael Hanselmann | if not self.get("instances"): |
221 | 8a96c5a6 | Michael Hanselmann | raise qa_error.Error("Need at least one instance") |
222 | 8a96c5a6 | Michael Hanselmann | |
223 | 8a96c5a6 | Michael Hanselmann | if (self.get("disk") is None or |
224 | 8a96c5a6 | Michael Hanselmann | self.get("disk-growth") is None or |
225 | 8a96c5a6 | Michael Hanselmann | len(self.get("disk")) != len(self.get("disk-growth"))): |
226 | 8a96c5a6 | Michael Hanselmann | raise qa_error.Error("Config options 'disk' and 'disk-growth' must exist" |
227 | 8a96c5a6 | Michael Hanselmann | " and have the same number of items")
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228 | 8a96c5a6 | Michael Hanselmann | |
229 | 8a96c5a6 | Michael Hanselmann | check = self.GetInstanceCheckScript()
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230 | 8a96c5a6 | Michael Hanselmann | if check:
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231 | 8a96c5a6 | Michael Hanselmann | try:
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232 | 8a96c5a6 | Michael Hanselmann | os.stat(check) |
233 | 8a96c5a6 | Michael Hanselmann | except EnvironmentError, err: |
234 | 8a96c5a6 | Michael Hanselmann | raise qa_error.Error("Can't find instance check script '%s': %s" % |
235 | 8a96c5a6 | Michael Hanselmann | (check, err)) |
236 | 8a96c5a6 | Michael Hanselmann | |
237 | 8a96c5a6 | Michael Hanselmann | enabled_hv = frozenset(self.GetEnabledHypervisors()) |
238 | 8a96c5a6 | Michael Hanselmann | if not enabled_hv: |
239 | 8a96c5a6 | Michael Hanselmann | raise qa_error.Error("No hypervisor is enabled") |
240 | 8a96c5a6 | Michael Hanselmann | |
241 | 8a96c5a6 | Michael Hanselmann | difference = enabled_hv - constants.HYPER_TYPES |
242 | 8a96c5a6 | Michael Hanselmann | if difference:
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243 | 8a96c5a6 | Michael Hanselmann | raise qa_error.Error("Unknown hypervisor(s) enabled: %s" % |
244 | 8a96c5a6 | Michael Hanselmann | utils.CommaJoin(difference)) |
245 | 8a96c5a6 | Michael Hanselmann | |
246 | 8a96c5a6 | Michael Hanselmann | def __getitem__(self, name): |
247 | 8a96c5a6 | Michael Hanselmann | """Returns configuration value.
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248 | 8a96c5a6 | Michael Hanselmann |
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249 | 8a96c5a6 | Michael Hanselmann | @type name: string
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250 | 8a96c5a6 | Michael Hanselmann | @param name: Name of configuration entry
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251 | 8a96c5a6 | Michael Hanselmann |
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252 | 8a96c5a6 | Michael Hanselmann | """
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253 | 8a96c5a6 | Michael Hanselmann | return self._data[name] |
254 | 8a96c5a6 | Michael Hanselmann | |
255 | 8a96c5a6 | Michael Hanselmann | def get(self, name, default=None): |
256 | 8a96c5a6 | Michael Hanselmann | """Returns configuration value.
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257 | 8a96c5a6 | Michael Hanselmann |
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258 | 8a96c5a6 | Michael Hanselmann | @type name: string
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259 | 8a96c5a6 | Michael Hanselmann | @param name: Name of configuration entry
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260 | 8a96c5a6 | Michael Hanselmann | @param default: Default value
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261 | 8a96c5a6 | Michael Hanselmann |
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262 | 8a96c5a6 | Michael Hanselmann | """
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263 | 8a96c5a6 | Michael Hanselmann | return self._data.get(name, default) |
264 | cec9845c | Michael Hanselmann | |
265 | 8a96c5a6 | Michael Hanselmann | def GetMasterNode(self): |
266 | 8a96c5a6 | Michael Hanselmann | """Returns the default master node for the cluster.
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267 | cec9845c | Michael Hanselmann |
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268 | 8a96c5a6 | Michael Hanselmann | """
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269 | 8a96c5a6 | Michael Hanselmann | return self["nodes"][0] |
270 | 8a96c5a6 | Michael Hanselmann | |
271 | 8a96c5a6 | Michael Hanselmann | def GetInstanceCheckScript(self): |
272 | 8a96c5a6 | Michael Hanselmann | """Returns path to instance check script or C{None}.
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273 | 8a96c5a6 | Michael Hanselmann |
|
274 | 8a96c5a6 | Michael Hanselmann | """
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275 | 8a96c5a6 | Michael Hanselmann | return self._data.get(_INSTANCE_CHECK_KEY, None) |
276 | cec9845c | Michael Hanselmann | |
277 | 8a96c5a6 | Michael Hanselmann | def GetEnabledHypervisors(self): |
278 | 8a96c5a6 | Michael Hanselmann | """Returns list of enabled hypervisors.
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279 | cec9845c | Michael Hanselmann |
|
280 | 8a96c5a6 | Michael Hanselmann | @rtype: list
|
281 | cec9845c | Michael Hanselmann |
|
282 | 8a96c5a6 | Michael Hanselmann | """
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283 | c9e05005 | Michael Hanselmann | try:
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284 | 8a96c5a6 | Michael Hanselmann | value = self._data[_ENABLED_HV_KEY]
|
285 | 8a96c5a6 | Michael Hanselmann | except KeyError: |
286 | 8a96c5a6 | Michael Hanselmann | return [constants.DEFAULT_ENABLED_HYPERVISOR]
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287 | 8a96c5a6 | Michael Hanselmann | else:
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288 | 8a96c5a6 | Michael Hanselmann | if value is None: |
289 | 8a96c5a6 | Michael Hanselmann | return []
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290 | 8a96c5a6 | Michael Hanselmann | elif isinstance(value, basestring): |
291 | 8a96c5a6 | Michael Hanselmann | # The configuration key ("enabled-hypervisors") implies there can be
|
292 | 8a96c5a6 | Michael Hanselmann | # multiple values. Multiple hypervisors are comma-separated on the
|
293 | 8a96c5a6 | Michael Hanselmann | # command line option to "gnt-cluster init", so we need to handle them
|
294 | 8a96c5a6 | Michael Hanselmann | # equally here.
|
295 | 8a96c5a6 | Michael Hanselmann | return value.split(",") |
296 | 8a96c5a6 | Michael Hanselmann | else:
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297 | 8a96c5a6 | Michael Hanselmann | return value
|
298 | 8a96c5a6 | Michael Hanselmann | |
299 | 8a96c5a6 | Michael Hanselmann | def GetDefaultHypervisor(self): |
300 | 8a96c5a6 | Michael Hanselmann | """Returns the default hypervisor to be used.
|
301 | 8a96c5a6 | Michael Hanselmann |
|
302 | 8a96c5a6 | Michael Hanselmann | """
|
303 | 8a96c5a6 | Michael Hanselmann | return self.GetEnabledHypervisors()[0] |
304 | 8a96c5a6 | Michael Hanselmann | |
305 | a08e181f | Michael Hanselmann | def SetExclusiveStorage(self, value): |
306 | a08e181f | Michael Hanselmann | """Set the expected value of the C{exclusive_storage} flag for the cluster.
|
307 | a08e181f | Michael Hanselmann |
|
308 | a08e181f | Michael Hanselmann | """
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309 | a08e181f | Michael Hanselmann | self._exclusive_storage = bool(value) |
310 | a08e181f | Michael Hanselmann | |
311 | a08e181f | Michael Hanselmann | def GetExclusiveStorage(self): |
312 | a08e181f | Michael Hanselmann | """Get the expected value of the C{exclusive_storage} flag for the cluster.
|
313 | a08e181f | Michael Hanselmann |
|
314 | a08e181f | Michael Hanselmann | """
|
315 | a08e181f | Michael Hanselmann | value = self._exclusive_storage
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316 | a08e181f | Michael Hanselmann | assert value is not None |
317 | a08e181f | Michael Hanselmann | return value
|
318 | a08e181f | Michael Hanselmann | |
319 | a08e181f | Michael Hanselmann | def IsTemplateSupported(self, templ): |
320 | a08e181f | Michael Hanselmann | """Is the given disk template supported by the current configuration?
|
321 | a08e181f | Michael Hanselmann |
|
322 | a08e181f | Michael Hanselmann | """
|
323 | cf62af3a | Michael Hanselmann | return (not self.GetExclusiveStorage() or |
324 | cf62af3a | Michael Hanselmann | templ in constants.DTS_EXCL_STORAGE)
|
325 | a08e181f | Michael Hanselmann | |
326 | 8a96c5a6 | Michael Hanselmann | |
327 | 8a96c5a6 | Michael Hanselmann | def Load(path): |
328 | 8a96c5a6 | Michael Hanselmann | """Loads the passed configuration file.
|
329 | 8a96c5a6 | Michael Hanselmann |
|
330 | 8a96c5a6 | Michael Hanselmann | """
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331 | 8a96c5a6 | Michael Hanselmann | global _config # pylint: disable=W0603 |
332 | 8a96c5a6 | Michael Hanselmann | |
333 | 8a96c5a6 | Michael Hanselmann | _config = _QaConfig.Load(path) |
334 | c9e05005 | Michael Hanselmann | |
335 | e7b6183b | Michael Hanselmann | |
336 | 8a96c5a6 | Michael Hanselmann | def GetConfig(): |
337 | 8a96c5a6 | Michael Hanselmann | """Returns the configuration object.
|
338 | 8a96c5a6 | Michael Hanselmann |
|
339 | 8a96c5a6 | Michael Hanselmann | """
|
340 | 8a96c5a6 | Michael Hanselmann | if _config is None: |
341 | 8a96c5a6 | Michael Hanselmann | raise RuntimeError("Configuration not yet loaded") |
342 | 8a96c5a6 | Michael Hanselmann | |
343 | 8a96c5a6 | Michael Hanselmann | return _config
|
344 | e7b6183b | Michael Hanselmann | |
345 | cec9845c | Michael Hanselmann | |
346 | cec9845c | Michael Hanselmann | def get(name, default=None): |
347 | 8a96c5a6 | Michael Hanselmann | """Wrapper for L{_QaConfig.get}.
|
348 | 8a96c5a6 | Michael Hanselmann |
|
349 | 8a96c5a6 | Michael Hanselmann | """
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350 | 8a96c5a6 | Michael Hanselmann | return GetConfig().get(name, default=default)
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351 | cec9845c | Michael Hanselmann | |
352 | cec9845c | Michael Hanselmann | |
353 | a0c3e726 | Michael Hanselmann | class Either: |
354 | a0c3e726 | Michael Hanselmann | def __init__(self, tests): |
355 | a0c3e726 | Michael Hanselmann | """Initializes this class.
|
356 | a0c3e726 | Michael Hanselmann |
|
357 | a0c3e726 | Michael Hanselmann | @type tests: list or string
|
358 | a0c3e726 | Michael Hanselmann | @param tests: List of test names
|
359 | a0c3e726 | Michael Hanselmann | @see: L{TestEnabled} for details
|
360 | a0c3e726 | Michael Hanselmann |
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361 | a0c3e726 | Michael Hanselmann | """
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362 | a0c3e726 | Michael Hanselmann | self.tests = tests
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363 | a0c3e726 | Michael Hanselmann | |
364 | a0c3e726 | Michael Hanselmann | |
365 | a0c3e726 | Michael Hanselmann | def _MakeSequence(value): |
366 | a0c3e726 | Michael Hanselmann | """Make sequence of single argument.
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367 | a0c3e726 | Michael Hanselmann |
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368 | a0c3e726 | Michael Hanselmann | If the single argument is not already a list or tuple, a list with the
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369 | a0c3e726 | Michael Hanselmann | argument as a single item is returned.
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370 | a0c3e726 | Michael Hanselmann |
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371 | a0c3e726 | Michael Hanselmann | """
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372 | a0c3e726 | Michael Hanselmann | if isinstance(value, (list, tuple)): |
373 | a0c3e726 | Michael Hanselmann | return value
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374 | a0c3e726 | Michael Hanselmann | else:
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375 | a0c3e726 | Michael Hanselmann | return [value]
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376 | a0c3e726 | Michael Hanselmann | |
377 | a0c3e726 | Michael Hanselmann | |
378 | a0c3e726 | Michael Hanselmann | def _TestEnabledInner(check_fn, names, fn): |
379 | a0c3e726 | Michael Hanselmann | """Evaluate test conditions.
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380 | a0c3e726 | Michael Hanselmann |
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381 | a0c3e726 | Michael Hanselmann | @type check_fn: callable
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382 | a0c3e726 | Michael Hanselmann | @param check_fn: Callback to check whether a test is enabled
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383 | a0c3e726 | Michael Hanselmann | @type names: sequence or string
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384 | a0c3e726 | Michael Hanselmann | @param names: Test name(s)
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385 | a0c3e726 | Michael Hanselmann | @type fn: callable
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386 | a0c3e726 | Michael Hanselmann | @param fn: Aggregation function
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387 | a0c3e726 | Michael Hanselmann | @rtype: bool
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388 | a0c3e726 | Michael Hanselmann | @return: Whether test is enabled
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389 | a0c3e726 | Michael Hanselmann |
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390 | a0c3e726 | Michael Hanselmann | """
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391 | a0c3e726 | Michael Hanselmann | names = _MakeSequence(names) |
392 | a0c3e726 | Michael Hanselmann | |
393 | a0c3e726 | Michael Hanselmann | result = [] |
394 | a0c3e726 | Michael Hanselmann | |
395 | a0c3e726 | Michael Hanselmann | for name in names: |
396 | a0c3e726 | Michael Hanselmann | if isinstance(name, Either): |
397 | a0c3e726 | Michael Hanselmann | value = _TestEnabledInner(check_fn, name.tests, compat.any) |
398 | a0c3e726 | Michael Hanselmann | elif isinstance(name, (list, tuple)): |
399 | a0c3e726 | Michael Hanselmann | value = _TestEnabledInner(check_fn, name, compat.all) |
400 | a0c3e726 | Michael Hanselmann | else:
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401 | a0c3e726 | Michael Hanselmann | value = check_fn(name) |
402 | a0c3e726 | Michael Hanselmann | |
403 | a0c3e726 | Michael Hanselmann | result.append(value) |
404 | a0c3e726 | Michael Hanselmann | |
405 | a0c3e726 | Michael Hanselmann | return fn(result)
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406 | a0c3e726 | Michael Hanselmann | |
407 | a0c3e726 | Michael Hanselmann | |
408 | a0c3e726 | Michael Hanselmann | def TestEnabled(tests, _cfg=None): |
409 | 7d88f255 | Iustin Pop | """Returns True if the given tests are enabled.
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410 | 7d88f255 | Iustin Pop |
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411 | a0c3e726 | Michael Hanselmann | @param tests: A single test as a string, or a list of tests to check; can
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412 | a0c3e726 | Michael Hanselmann | contain L{Either} for OR conditions, AND is default
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413 | 1010ec70 | Michael Hanselmann |
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414 | 1010ec70 | Michael Hanselmann | """
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415 | a0c3e726 | Michael Hanselmann | if _cfg is None: |
416 | 8a96c5a6 | Michael Hanselmann | cfg = GetConfig() |
417 | 8a96c5a6 | Michael Hanselmann | else:
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418 | 8a96c5a6 | Michael Hanselmann | cfg = _cfg |
419 | 59a8fe48 | Michael Hanselmann | |
420 | 59a8fe48 | Michael Hanselmann | # Get settings for all tests
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421 | 8a96c5a6 | Michael Hanselmann | cfg_tests = cfg.get("tests", {})
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422 | 59a8fe48 | Michael Hanselmann | |
423 | 59a8fe48 | Michael Hanselmann | # Get default setting
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424 | a0c3e726 | Michael Hanselmann | default = cfg_tests.get("default", True) |
425 | 59a8fe48 | Michael Hanselmann | |
426 | a0c3e726 | Michael Hanselmann | return _TestEnabledInner(lambda name: cfg_tests.get(name, default), |
427 | a0c3e726 | Michael Hanselmann | tests, compat.all) |
428 | cec9845c | Michael Hanselmann | |
429 | cec9845c | Michael Hanselmann | |
430 | 8a96c5a6 | Michael Hanselmann | def GetInstanceCheckScript(*args): |
431 | 8a96c5a6 | Michael Hanselmann | """Wrapper for L{_QaConfig.GetInstanceCheckScript}.
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432 | c9e05005 | Michael Hanselmann |
|
433 | c9e05005 | Michael Hanselmann | """
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434 | 8a96c5a6 | Michael Hanselmann | return GetConfig().GetInstanceCheckScript(*args)
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435 | c9e05005 | Michael Hanselmann | |
436 | e7b6183b | Michael Hanselmann | |
437 | 8a96c5a6 | Michael Hanselmann | def GetEnabledHypervisors(*args): |
438 | 8a96c5a6 | Michael Hanselmann | """Wrapper for L{_QaConfig.GetEnabledHypervisors}.
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439 | e7b6183b | Michael Hanselmann |
|
440 | e7b6183b | Michael Hanselmann | """
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441 | 8a96c5a6 | Michael Hanselmann | return GetConfig().GetEnabledHypervisors(*args)
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442 | e7b6183b | Michael Hanselmann | |
443 | e7b6183b | Michael Hanselmann | |
444 | 8a96c5a6 | Michael Hanselmann | def GetDefaultHypervisor(*args): |
445 | 8a96c5a6 | Michael Hanselmann | """Wrapper for L{_QaConfig.GetDefaultHypervisor}.
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446 | e7b6183b | Michael Hanselmann |
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447 | e7b6183b | Michael Hanselmann | """
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448 | 8a96c5a6 | Michael Hanselmann | return GetConfig().GetDefaultHypervisor(*args)
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449 | e7b6183b | Michael Hanselmann | |
450 | e7b6183b | Michael Hanselmann | |
451 | f346a7d9 | Michael Hanselmann | def GetInstanceNicMac(inst, default=None): |
452 | f346a7d9 | Michael Hanselmann | """Returns MAC address for instance's network interface.
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453 | f346a7d9 | Michael Hanselmann |
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454 | f346a7d9 | Michael Hanselmann | """
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455 | 6a654276 | Michael Hanselmann | return inst.GetNicMacAddr(0, default) |
456 | f346a7d9 | Michael Hanselmann | |
457 | f346a7d9 | Michael Hanselmann | |
458 | cec9845c | Michael Hanselmann | def GetMasterNode(): |
459 | 8a96c5a6 | Michael Hanselmann | """Wrapper for L{_QaConfig.GetMasterNode}.
|
460 | 8a96c5a6 | Michael Hanselmann |
|
461 | 8a96c5a6 | Michael Hanselmann | """
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462 | 8a96c5a6 | Michael Hanselmann | return GetConfig().GetMasterNode()
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463 | cec9845c | Michael Hanselmann | |
464 | cec9845c | Michael Hanselmann | |
465 | 6a654276 | Michael Hanselmann | def AcquireInstance(_cfg=None): |
466 | cec9845c | Michael Hanselmann | """Returns an instance which isn't in use.
|
467 | cec9845c | Michael Hanselmann |
|
468 | cec9845c | Michael Hanselmann | """
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469 | 6a654276 | Michael Hanselmann | if _cfg is None: |
470 | 6a654276 | Michael Hanselmann | cfg = GetConfig() |
471 | 6a654276 | Michael Hanselmann | else:
|
472 | 6a654276 | Michael Hanselmann | cfg = _cfg |
473 | 6a654276 | Michael Hanselmann | |
474 | cec9845c | Michael Hanselmann | # Filter out unwanted instances
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475 | 6a654276 | Michael Hanselmann | instances = filter(lambda inst: not inst.used, cfg["instances"]) |
476 | cec9845c | Michael Hanselmann | |
477 | 6a654276 | Michael Hanselmann | if not instances: |
478 | cec9845c | Michael Hanselmann | raise qa_error.OutOfInstancesError("No instances left") |
479 | cec9845c | Michael Hanselmann | |
480 | cec9845c | Michael Hanselmann | inst = instances[0]
|
481 | 6a654276 | Michael Hanselmann | |
482 | 6a654276 | Michael Hanselmann | assert not inst.used |
483 | 6a654276 | Michael Hanselmann | assert inst.disk_template is None |
484 | 6a654276 | Michael Hanselmann | |
485 | 6a654276 | Michael Hanselmann | inst.used = True
|
486 | 6a654276 | Michael Hanselmann | |
487 | cec9845c | Michael Hanselmann | return inst
|
488 | cec9845c | Michael Hanselmann | |
489 | cec9845c | Michael Hanselmann | |
490 | 906a0346 | Bernardo Dal Seno | def GetInstanceTemplate(inst): |
491 | 906a0346 | Bernardo Dal Seno | """Return the disk template of an instance.
|
492 | 906a0346 | Bernardo Dal Seno |
|
493 | 906a0346 | Bernardo Dal Seno | """
|
494 | 6a654276 | Michael Hanselmann | templ = inst.disk_template |
495 | 906a0346 | Bernardo Dal Seno | assert templ is not None |
496 | 906a0346 | Bernardo Dal Seno | return templ
|
497 | 906a0346 | Bernardo Dal Seno | |
498 | 906a0346 | Bernardo Dal Seno | |
499 | 906a0346 | Bernardo Dal Seno | def SetInstanceTemplate(inst, template): |
500 | 906a0346 | Bernardo Dal Seno | """Set the disk template for an instance.
|
501 | 906a0346 | Bernardo Dal Seno |
|
502 | 906a0346 | Bernardo Dal Seno | """
|
503 | 6a654276 | Michael Hanselmann | inst.disk_template = template |
504 | 906a0346 | Bernardo Dal Seno | |
505 | 906a0346 | Bernardo Dal Seno | |
506 | 6a0f22e1 | Bernardo Dal Seno | def SetExclusiveStorage(value): |
507 | a08e181f | Michael Hanselmann | """Wrapper for L{_QaConfig.SetExclusiveStorage}.
|
508 | 6a0f22e1 | Bernardo Dal Seno |
|
509 | 6a0f22e1 | Bernardo Dal Seno | """
|
510 | a08e181f | Michael Hanselmann | return GetConfig().SetExclusiveStorage(value)
|
511 | 6a0f22e1 | Bernardo Dal Seno | |
512 | 6a0f22e1 | Bernardo Dal Seno | |
513 | 6a0f22e1 | Bernardo Dal Seno | def GetExclusiveStorage(): |
514 | a08e181f | Michael Hanselmann | """Wrapper for L{_QaConfig.GetExclusiveStorage}.
|
515 | 6a0f22e1 | Bernardo Dal Seno |
|
516 | 6a0f22e1 | Bernardo Dal Seno | """
|
517 | a08e181f | Michael Hanselmann | return GetConfig().GetExclusiveStorage()
|
518 | 6a0f22e1 | Bernardo Dal Seno | |
519 | 6a0f22e1 | Bernardo Dal Seno | |
520 | 27eba428 | Bernardo Dal Seno | def IsTemplateSupported(templ): |
521 | a08e181f | Michael Hanselmann | """Wrapper for L{_QaConfig.GetExclusiveStorage}.
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522 | 27eba428 | Bernardo Dal Seno |
|
523 | 27eba428 | Bernardo Dal Seno | """
|
524 | a08e181f | Michael Hanselmann | return GetConfig().IsTemplateSupported(templ)
|
525 | 27eba428 | Bernardo Dal Seno | |
526 | 27eba428 | Bernardo Dal Seno | |
527 | dbdb0594 | Michael Hanselmann | def AcquireNode(exclude=None, _cfg=None): |
528 | cec9845c | Michael Hanselmann | """Returns the least used node.
|
529 | cec9845c | Michael Hanselmann |
|
530 | cec9845c | Michael Hanselmann | """
|
531 | dbdb0594 | Michael Hanselmann | if _cfg is None: |
532 | dbdb0594 | Michael Hanselmann | cfg = GetConfig() |
533 | dbdb0594 | Michael Hanselmann | else:
|
534 | dbdb0594 | Michael Hanselmann | cfg = _cfg |
535 | dbdb0594 | Michael Hanselmann | |
536 | dbdb0594 | Michael Hanselmann | master = cfg.GetMasterNode() |
537 | cec9845c | Michael Hanselmann | |
538 | cec9845c | Michael Hanselmann | # Filter out unwanted nodes
|
539 | cec9845c | Michael Hanselmann | # TODO: Maybe combine filters
|
540 | cec9845c | Michael Hanselmann | if exclude is None: |
541 | d0c8c01d | Iustin Pop | nodes = cfg["nodes"][:]
|
542 | 4b62db14 | Michael Hanselmann | elif isinstance(exclude, (list, tuple)): |
543 | d0c8c01d | Iustin Pop | nodes = filter(lambda node: node not in exclude, cfg["nodes"]) |
544 | cec9845c | Michael Hanselmann | else:
|
545 | d0c8c01d | Iustin Pop | nodes = filter(lambda node: node != exclude, cfg["nodes"]) |
546 | cec9845c | Michael Hanselmann | |
547 | dbdb0594 | Michael Hanselmann | nodes = filter(lambda node: node.added or node == master, nodes) |
548 | cec9845c | Michael Hanselmann | |
549 | dbdb0594 | Michael Hanselmann | if not nodes: |
550 | cec9845c | Michael Hanselmann | raise qa_error.OutOfNodesError("No nodes left") |
551 | cec9845c | Michael Hanselmann | |
552 | cec9845c | Michael Hanselmann | # Get node with least number of uses
|
553 | dbdb0594 | Michael Hanselmann | # TODO: Switch to computing sort key instead of comparing directly
|
554 | cec9845c | Michael Hanselmann | def compare(a, b): |
555 | dbdb0594 | Michael Hanselmann | result = cmp(a.use_count, b.use_count)
|
556 | cec9845c | Michael Hanselmann | if result == 0: |
557 | dbdb0594 | Michael Hanselmann | result = cmp(a.primary, b.primary)
|
558 | cec9845c | Michael Hanselmann | return result
|
559 | cec9845c | Michael Hanselmann | |
560 | cec9845c | Michael Hanselmann | nodes.sort(cmp=compare) |
561 | cec9845c | Michael Hanselmann | |
562 | dbdb0594 | Michael Hanselmann | return nodes[0].Use() |
563 | cec9845c | Michael Hanselmann | |
564 | cec9845c | Michael Hanselmann | |
565 | 7d4f1b45 | Bernardo Dal Seno | def AcquireManyNodes(num, exclude=None): |
566 | 7d4f1b45 | Bernardo Dal Seno | """Return the least used nodes.
|
567 | 7d4f1b45 | Bernardo Dal Seno |
|
568 | 7d4f1b45 | Bernardo Dal Seno | @type num: int
|
569 | 7d4f1b45 | Bernardo Dal Seno | @param num: Number of nodes; can be 0.
|
570 | 7d4f1b45 | Bernardo Dal Seno | @type exclude: list of nodes or C{None}
|
571 | 7d4f1b45 | Bernardo Dal Seno | @param exclude: nodes to be excluded from the choice
|
572 | 7d4f1b45 | Bernardo Dal Seno | @rtype: list of nodes
|
573 | 7d4f1b45 | Bernardo Dal Seno | @return: C{num} different nodes
|
574 | 7d4f1b45 | Bernardo Dal Seno |
|
575 | 7d4f1b45 | Bernardo Dal Seno | """
|
576 | 7d4f1b45 | Bernardo Dal Seno | nodes = [] |
577 | 7d4f1b45 | Bernardo Dal Seno | if exclude is None: |
578 | 7d4f1b45 | Bernardo Dal Seno | exclude = [] |
579 | 7d4f1b45 | Bernardo Dal Seno | elif isinstance(exclude, (list, tuple)): |
580 | 7d4f1b45 | Bernardo Dal Seno | # Don't modify the incoming argument
|
581 | 7d4f1b45 | Bernardo Dal Seno | exclude = list(exclude)
|
582 | 7d4f1b45 | Bernardo Dal Seno | else:
|
583 | 7d4f1b45 | Bernardo Dal Seno | exclude = [exclude] |
584 | 7d4f1b45 | Bernardo Dal Seno | |
585 | 7d4f1b45 | Bernardo Dal Seno | try:
|
586 | 7d4f1b45 | Bernardo Dal Seno | for _ in range(0, num): |
587 | 7d4f1b45 | Bernardo Dal Seno | n = AcquireNode(exclude=exclude) |
588 | 7d4f1b45 | Bernardo Dal Seno | nodes.append(n) |
589 | 7d4f1b45 | Bernardo Dal Seno | exclude.append(n) |
590 | 7d4f1b45 | Bernardo Dal Seno | except qa_error.OutOfNodesError:
|
591 | 7d4f1b45 | Bernardo Dal Seno | ReleaseManyNodes(nodes) |
592 | 7d4f1b45 | Bernardo Dal Seno | raise
|
593 | 7d4f1b45 | Bernardo Dal Seno | return nodes
|
594 | 7d4f1b45 | Bernardo Dal Seno | |
595 | 7d4f1b45 | Bernardo Dal Seno | |
596 | 7d4f1b45 | Bernardo Dal Seno | def ReleaseManyNodes(nodes): |
597 | 565cb4bf | Michael Hanselmann | for node in nodes: |
598 | 565cb4bf | Michael Hanselmann | node.Release() |