root / lib / hypervisor.py @ c05bcecf
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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | a8083063 | Iustin Pop | """Module that abstracts the virtualisation interface
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23 | a8083063 | Iustin Pop |
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24 | a8083063 | Iustin Pop | """
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25 | a8083063 | Iustin Pop | |
26 | a8083063 | Iustin Pop | import time |
27 | a8083063 | Iustin Pop | import os |
28 | a8083063 | Iustin Pop | from cStringIO import StringIO |
29 | a8083063 | Iustin Pop | |
30 | a8083063 | Iustin Pop | from ganeti import utils |
31 | a8083063 | Iustin Pop | from ganeti import logger |
32 | a8083063 | Iustin Pop | from ganeti import ssconf |
33 | f00b46bc | Michael Hanselmann | from ganeti import constants |
34 | 2a6469d5 | Alexander Schreiber | from ganeti import errors |
35 | a8083063 | Iustin Pop | from ganeti.errors import HypervisorError |
36 | a8083063 | Iustin Pop | |
37 | a8083063 | Iustin Pop | |
38 | a8083063 | Iustin Pop | def GetHypervisor(): |
39 | a8083063 | Iustin Pop | """Return a Hypervisor instance.
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40 | a8083063 | Iustin Pop |
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41 | a8083063 | Iustin Pop | This function parses the cluster hypervisor configuration file and
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42 | a8083063 | Iustin Pop | instantiates a class based on the value of this file.
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43 | a8083063 | Iustin Pop |
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44 | a8083063 | Iustin Pop | """
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45 | a8083063 | Iustin Pop | ht_kind = ssconf.SimpleStore().GetHypervisorType() |
46 | 631eb662 | Alexander Schreiber | if ht_kind == constants.HT_XEN_PVM30:
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47 | 631eb662 | Alexander Schreiber | cls = XenPvmHypervisor |
48 | 2584d4a4 | Alexander Schreiber | elif ht_kind == constants.HT_FAKE:
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49 | a8083063 | Iustin Pop | cls = FakeHypervisor |
50 | 2a6469d5 | Alexander Schreiber | elif ht_kind == constants.HT_XEN_HVM31:
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51 | 2a6469d5 | Alexander Schreiber | cls = XenHvmHypervisor |
52 | a8083063 | Iustin Pop | else:
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53 | 3ecf6786 | Iustin Pop | raise HypervisorError("Unknown hypervisor type '%s'" % ht_kind) |
54 | a8083063 | Iustin Pop | return cls()
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55 | a8083063 | Iustin Pop | |
56 | a8083063 | Iustin Pop | |
57 | a8083063 | Iustin Pop | class BaseHypervisor(object): |
58 | a8083063 | Iustin Pop | """Abstract virtualisation technology interface
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59 | a8083063 | Iustin Pop |
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60 | a8083063 | Iustin Pop | The goal is that all aspects of the virtualisation technology must
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61 | a8083063 | Iustin Pop | be abstracted away from the rest of code.
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62 | a8083063 | Iustin Pop |
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63 | a8083063 | Iustin Pop | """
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64 | a8083063 | Iustin Pop | def __init__(self): |
65 | a8083063 | Iustin Pop | pass
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66 | a8083063 | Iustin Pop | |
67 | a8083063 | Iustin Pop | def StartInstance(self, instance, block_devices, extra_args): |
68 | a8083063 | Iustin Pop | """Start an instance."""
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69 | a8083063 | Iustin Pop | raise NotImplementedError |
70 | a8083063 | Iustin Pop | |
71 | a8083063 | Iustin Pop | def StopInstance(self, instance, force=False): |
72 | a8083063 | Iustin Pop | """Stop an instance."""
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73 | a8083063 | Iustin Pop | raise NotImplementedError |
74 | a8083063 | Iustin Pop | |
75 | 7e1394dc | Alexander Schreiber | def RebootInstance(self, instance): |
76 | 7e1394dc | Alexander Schreiber | """Reboot an instance."""
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77 | 7e1394dc | Alexander Schreiber | raise NotImplementedError |
78 | 7e1394dc | Alexander Schreiber | |
79 | a8083063 | Iustin Pop | def ListInstances(self): |
80 | a8083063 | Iustin Pop | """Get the list of running instances."""
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81 | a8083063 | Iustin Pop | raise NotImplementedError |
82 | a8083063 | Iustin Pop | |
83 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
84 | a8083063 | Iustin Pop | """Get instance properties.
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85 | a8083063 | Iustin Pop |
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86 | a8083063 | Iustin Pop | Args:
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87 | a8083063 | Iustin Pop | instance_name: the instance name
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88 | a8083063 | Iustin Pop |
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89 | a8083063 | Iustin Pop | Returns:
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90 | a8083063 | Iustin Pop | (name, id, memory, vcpus, state, times)
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91 | a8083063 | Iustin Pop |
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92 | a8083063 | Iustin Pop | """
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93 | a8083063 | Iustin Pop | raise NotImplementedError |
94 | a8083063 | Iustin Pop | |
95 | a8083063 | Iustin Pop | def GetAllInstancesInfo(self): |
96 | a8083063 | Iustin Pop | """Get properties of all instances.
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97 | a8083063 | Iustin Pop |
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98 | a8083063 | Iustin Pop | Returns:
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99 | a8083063 | Iustin Pop | [(name, id, memory, vcpus, stat, times),...]
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100 | a8083063 | Iustin Pop | """
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101 | a8083063 | Iustin Pop | raise NotImplementedError |
102 | a8083063 | Iustin Pop | |
103 | a8083063 | Iustin Pop | def GetNodeInfo(self): |
104 | a8083063 | Iustin Pop | """Return information about the node.
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105 | a8083063 | Iustin Pop |
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106 | a8083063 | Iustin Pop | The return value is a dict, which has to have the following items:
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107 | a8083063 | Iustin Pop | (all values in MiB)
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108 | a8083063 | Iustin Pop | - memory_total: the total memory size on the node
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109 | a8083063 | Iustin Pop | - memory_free: the available memory on the node for instances
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110 | a8083063 | Iustin Pop | - memory_dom0: the memory used by the node itself, if available
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111 | a8083063 | Iustin Pop |
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112 | a8083063 | Iustin Pop | """
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113 | a8083063 | Iustin Pop | raise NotImplementedError |
114 | a8083063 | Iustin Pop | |
115 | a8083063 | Iustin Pop | @staticmethod
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116 | 30989e69 | Alexander Schreiber | def GetShellCommandForConsole(instance): |
117 | a8083063 | Iustin Pop | """Return a command for connecting to the console of an instance.
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118 | a8083063 | Iustin Pop |
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119 | a8083063 | Iustin Pop | """
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120 | a8083063 | Iustin Pop | raise NotImplementedError |
121 | a8083063 | Iustin Pop | |
122 | a8083063 | Iustin Pop | def Verify(self): |
123 | a8083063 | Iustin Pop | """Verify the hypervisor.
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124 | a8083063 | Iustin Pop |
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125 | a8083063 | Iustin Pop | """
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126 | a8083063 | Iustin Pop | raise NotImplementedError |
127 | a8083063 | Iustin Pop | |
128 | a8083063 | Iustin Pop | |
129 | a8083063 | Iustin Pop | class XenHypervisor(BaseHypervisor): |
130 | 631eb662 | Alexander Schreiber | """Xen generic hypervisor interface
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131 | 631eb662 | Alexander Schreiber |
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132 | 631eb662 | Alexander Schreiber | This is the Xen base class used for both Xen PVM and HVM. It contains
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133 | 631eb662 | Alexander Schreiber | all the functionality that is identical for both.
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134 | 631eb662 | Alexander Schreiber |
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135 | 631eb662 | Alexander Schreiber | """
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136 | a8083063 | Iustin Pop | |
137 | a8083063 | Iustin Pop | @staticmethod
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138 | a8083063 | Iustin Pop | def _WriteConfigFile(instance, block_devices, extra_args): |
139 | 03abdbe8 | Iustin Pop | """Write the Xen config file for the instance.
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140 | a8083063 | Iustin Pop |
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141 | a8083063 | Iustin Pop | """
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142 | 631eb662 | Alexander Schreiber | raise NotImplementedError |
143 | a8083063 | Iustin Pop | |
144 | a8083063 | Iustin Pop | @staticmethod
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145 | a8083063 | Iustin Pop | def _RemoveConfigFile(instance): |
146 | a8083063 | Iustin Pop | """Remove the xen configuration file.
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147 | a8083063 | Iustin Pop |
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148 | a8083063 | Iustin Pop | """
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149 | a8083063 | Iustin Pop | utils.RemoveFile("/etc/xen/%s" % instance.name)
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150 | a8083063 | Iustin Pop | |
151 | a8083063 | Iustin Pop | @staticmethod
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152 | a8083063 | Iustin Pop | def _GetXMList(include_node): |
153 | a8083063 | Iustin Pop | """Return the list of running instances.
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154 | a8083063 | Iustin Pop |
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155 | a8083063 | Iustin Pop | If the `include_node` argument is True, then we return information
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156 | a8083063 | Iustin Pop | for dom0 also, otherwise we filter that from the return value.
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157 | a8083063 | Iustin Pop |
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158 | a8083063 | Iustin Pop | The return value is a list of (name, id, memory, vcpus, state, time spent)
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159 | a8083063 | Iustin Pop |
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160 | a8083063 | Iustin Pop | """
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161 | a8083063 | Iustin Pop | for dummy in range(5): |
162 | a8083063 | Iustin Pop | result = utils.RunCmd(["xm", "list"]) |
163 | a8083063 | Iustin Pop | if not result.failed: |
164 | a8083063 | Iustin Pop | break
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165 | a8083063 | Iustin Pop | logger.Error("xm list failed (%s): %s" % (result.fail_reason,
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166 | a8083063 | Iustin Pop | result.output)) |
167 | a8083063 | Iustin Pop | time.sleep(1)
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168 | a8083063 | Iustin Pop | |
169 | a8083063 | Iustin Pop | if result.failed:
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170 | a8083063 | Iustin Pop | raise HypervisorError("xm list failed, retries exceeded (%s): %s" % |
171 | a8083063 | Iustin Pop | (result.fail_reason, result.stderr)) |
172 | a8083063 | Iustin Pop | |
173 | a8083063 | Iustin Pop | # skip over the heading and the domain 0 line (optional)
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174 | a8083063 | Iustin Pop | if include_node:
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175 | a8083063 | Iustin Pop | to_skip = 1
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176 | a8083063 | Iustin Pop | else:
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177 | a8083063 | Iustin Pop | to_skip = 2
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178 | a8083063 | Iustin Pop | lines = result.stdout.splitlines()[to_skip:] |
179 | a8083063 | Iustin Pop | result = [] |
180 | a8083063 | Iustin Pop | for line in lines: |
181 | a8083063 | Iustin Pop | # The format of lines is:
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182 | a8083063 | Iustin Pop | # Name ID Mem(MiB) VCPUs State Time(s)
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183 | a8083063 | Iustin Pop | # Domain-0 0 3418 4 r----- 266.2
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184 | a8083063 | Iustin Pop | data = line.split() |
185 | a8083063 | Iustin Pop | if len(data) != 6: |
186 | a8083063 | Iustin Pop | raise HypervisorError("Can't parse output of xm list, line: %s" % line) |
187 | a8083063 | Iustin Pop | try:
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188 | a8083063 | Iustin Pop | data[1] = int(data[1]) |
189 | a8083063 | Iustin Pop | data[2] = int(data[2]) |
190 | a8083063 | Iustin Pop | data[3] = int(data[3]) |
191 | a8083063 | Iustin Pop | data[5] = float(data[5]) |
192 | a8083063 | Iustin Pop | except ValueError, err: |
193 | a8083063 | Iustin Pop | raise HypervisorError("Can't parse output of xm list," |
194 | a8083063 | Iustin Pop | " line: %s, error: %s" % (line, err))
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195 | a8083063 | Iustin Pop | result.append(data) |
196 | a8083063 | Iustin Pop | return result
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197 | a8083063 | Iustin Pop | |
198 | a8083063 | Iustin Pop | def ListInstances(self): |
199 | a8083063 | Iustin Pop | """Get the list of running instances.
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200 | a8083063 | Iustin Pop |
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201 | a8083063 | Iustin Pop | """
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202 | a8083063 | Iustin Pop | xm_list = self._GetXMList(False) |
203 | a8083063 | Iustin Pop | names = [info[0] for info in xm_list] |
204 | a8083063 | Iustin Pop | return names
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205 | a8083063 | Iustin Pop | |
206 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
207 | a8083063 | Iustin Pop | """Get instance properties.
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208 | a8083063 | Iustin Pop |
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209 | a8083063 | Iustin Pop | Args:
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210 | a8083063 | Iustin Pop | instance_name: the instance name
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211 | a8083063 | Iustin Pop |
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212 | a8083063 | Iustin Pop | Returns:
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213 | a8083063 | Iustin Pop | (name, id, memory, vcpus, stat, times)
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214 | a8083063 | Iustin Pop | """
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215 | a8083063 | Iustin Pop | xm_list = self._GetXMList(instance_name=="Domain-0") |
216 | a8083063 | Iustin Pop | result = None
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217 | a8083063 | Iustin Pop | for data in xm_list: |
218 | a8083063 | Iustin Pop | if data[0] == instance_name: |
219 | a8083063 | Iustin Pop | result = data |
220 | a8083063 | Iustin Pop | break
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221 | a8083063 | Iustin Pop | return result
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222 | a8083063 | Iustin Pop | |
223 | a8083063 | Iustin Pop | def GetAllInstancesInfo(self): |
224 | a8083063 | Iustin Pop | """Get properties of all instances.
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225 | a8083063 | Iustin Pop |
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226 | a8083063 | Iustin Pop | Returns:
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227 | a8083063 | Iustin Pop | [(name, id, memory, vcpus, stat, times),...]
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228 | a8083063 | Iustin Pop | """
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229 | a8083063 | Iustin Pop | xm_list = self._GetXMList(False) |
230 | a8083063 | Iustin Pop | return xm_list
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231 | a8083063 | Iustin Pop | |
232 | a8083063 | Iustin Pop | def StartInstance(self, instance, block_devices, extra_args): |
233 | a8083063 | Iustin Pop | """Start an instance."""
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234 | a8083063 | Iustin Pop | self._WriteConfigFile(instance, block_devices, extra_args)
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235 | a8083063 | Iustin Pop | result = utils.RunCmd(["xm", "create", instance.name]) |
236 | a8083063 | Iustin Pop | |
237 | a8083063 | Iustin Pop | if result.failed:
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238 | 523687d7 | Iustin Pop | raise HypervisorError("Failed to start instance %s: %s (%s)" % |
239 | 523687d7 | Iustin Pop | (instance.name, result.fail_reason, result.output)) |
240 | a8083063 | Iustin Pop | |
241 | a8083063 | Iustin Pop | def StopInstance(self, instance, force=False): |
242 | a8083063 | Iustin Pop | """Stop an instance."""
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243 | a8083063 | Iustin Pop | self._RemoveConfigFile(instance)
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244 | a8083063 | Iustin Pop | if force:
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245 | a8083063 | Iustin Pop | command = ["xm", "destroy", instance.name] |
246 | a8083063 | Iustin Pop | else:
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247 | a8083063 | Iustin Pop | command = ["xm", "shutdown", instance.name] |
248 | a8083063 | Iustin Pop | result = utils.RunCmd(command) |
249 | a8083063 | Iustin Pop | |
250 | a8083063 | Iustin Pop | if result.failed:
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251 | a8083063 | Iustin Pop | raise HypervisorError("Failed to stop instance %s: %s" % |
252 | a8083063 | Iustin Pop | (instance.name, result.fail_reason)) |
253 | a8083063 | Iustin Pop | |
254 | 7e1394dc | Alexander Schreiber | def RebootInstance(self, instance): |
255 | 7e1394dc | Alexander Schreiber | """Reboot an instance."""
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256 | 7e1394dc | Alexander Schreiber | result = utils.RunCmd(["xm", "reboot", instance.name]) |
257 | 7e1394dc | Alexander Schreiber | |
258 | 7e1394dc | Alexander Schreiber | if result.failed:
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259 | 7e1394dc | Alexander Schreiber | raise HypervisorError("Failed to reboot instance %s: %s" % |
260 | 7e1394dc | Alexander Schreiber | (instance.name, result.fail_reason)) |
261 | 7e1394dc | Alexander Schreiber | |
262 | a8083063 | Iustin Pop | def GetNodeInfo(self): |
263 | a8083063 | Iustin Pop | """Return information about the node.
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264 | a8083063 | Iustin Pop |
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265 | a8083063 | Iustin Pop | The return value is a dict, which has to have the following items:
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266 | a8083063 | Iustin Pop | (all values in MiB)
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267 | a8083063 | Iustin Pop | - memory_total: the total memory size on the node
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268 | a8083063 | Iustin Pop | - memory_free: the available memory on the node for instances
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269 | a8083063 | Iustin Pop | - memory_dom0: the memory used by the node itself, if available
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270 | a8083063 | Iustin Pop |
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271 | a8083063 | Iustin Pop | """
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272 | a8083063 | Iustin Pop | # note: in xen 3, memory has changed to total_memory
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273 | a8083063 | Iustin Pop | result = utils.RunCmd(["xm", "info"]) |
274 | a8083063 | Iustin Pop | if result.failed:
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275 | a8083063 | Iustin Pop | logger.Error("Can't run 'xm info': %s" % result.fail_reason)
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276 | a8083063 | Iustin Pop | return None |
277 | a8083063 | Iustin Pop | |
278 | a8083063 | Iustin Pop | xmoutput = result.stdout.splitlines() |
279 | a8083063 | Iustin Pop | result = {} |
280 | a8083063 | Iustin Pop | for line in xmoutput: |
281 | a8083063 | Iustin Pop | splitfields = line.split(":", 1) |
282 | a8083063 | Iustin Pop | |
283 | a8083063 | Iustin Pop | if len(splitfields) > 1: |
284 | a8083063 | Iustin Pop | key = splitfields[0].strip()
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285 | a8083063 | Iustin Pop | val = splitfields[1].strip()
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286 | a8083063 | Iustin Pop | if key == 'memory' or key == 'total_memory': |
287 | a8083063 | Iustin Pop | result['memory_total'] = int(val) |
288 | a8083063 | Iustin Pop | elif key == 'free_memory': |
289 | a8083063 | Iustin Pop | result['memory_free'] = int(val) |
290 | a8083063 | Iustin Pop | dom0_info = self.GetInstanceInfo("Domain-0") |
291 | a8083063 | Iustin Pop | if dom0_info is not None: |
292 | a8083063 | Iustin Pop | result['memory_dom0'] = dom0_info[2] |
293 | a8083063 | Iustin Pop | |
294 | a8083063 | Iustin Pop | return result
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295 | a8083063 | Iustin Pop | |
296 | a8083063 | Iustin Pop | @staticmethod
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297 | 30989e69 | Alexander Schreiber | def GetShellCommandForConsole(instance): |
298 | a8083063 | Iustin Pop | """Return a command for connecting to the console of an instance.
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299 | a8083063 | Iustin Pop |
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300 | a8083063 | Iustin Pop | """
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301 | 631eb662 | Alexander Schreiber | raise NotImplementedError |
302 | a8083063 | Iustin Pop | |
303 | a8083063 | Iustin Pop | |
304 | a8083063 | Iustin Pop | def Verify(self): |
305 | a8083063 | Iustin Pop | """Verify the hypervisor.
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306 | a8083063 | Iustin Pop |
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307 | a8083063 | Iustin Pop | For Xen, this verifies that the xend process is running.
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308 | a8083063 | Iustin Pop |
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309 | a8083063 | Iustin Pop | """
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310 | a8083063 | Iustin Pop | if not utils.CheckDaemonAlive('/var/run/xend.pid', 'xend'): |
311 | a8083063 | Iustin Pop | return "xend daemon is not running" |
312 | a8083063 | Iustin Pop | |
313 | a8083063 | Iustin Pop | |
314 | 631eb662 | Alexander Schreiber | class XenPvmHypervisor(XenHypervisor): |
315 | 631eb662 | Alexander Schreiber | """Xen PVM hypervisor interface"""
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316 | 631eb662 | Alexander Schreiber | |
317 | 631eb662 | Alexander Schreiber | @staticmethod
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318 | 631eb662 | Alexander Schreiber | def _WriteConfigFile(instance, block_devices, extra_args): |
319 | 03abdbe8 | Iustin Pop | """Write the Xen config file for the instance.
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320 | 631eb662 | Alexander Schreiber |
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321 | 631eb662 | Alexander Schreiber | """
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322 | 631eb662 | Alexander Schreiber | config = StringIO() |
323 | 631eb662 | Alexander Schreiber | config.write("# this is autogenerated by Ganeti, please do not edit\n#\n")
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324 | 03abdbe8 | Iustin Pop | |
325 | 03abdbe8 | Iustin Pop | # kernel handling
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326 | 03abdbe8 | Iustin Pop | if instance.kernel_path in (None, constants.VALUE_DEFAULT): |
327 | 03abdbe8 | Iustin Pop | kpath = constants.XEN_KERNEL |
328 | 03abdbe8 | Iustin Pop | else:
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329 | 03abdbe8 | Iustin Pop | if not os.path.exists(instance.kernel_path): |
330 | 03abdbe8 | Iustin Pop | raise errors.HypervisorError("The kernel %s for instance %s is" |
331 | 03abdbe8 | Iustin Pop | " missing" % (instance.kernel_path,
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332 | 03abdbe8 | Iustin Pop | instance.name)) |
333 | 03abdbe8 | Iustin Pop | kpath = instance.kernel_path |
334 | 03abdbe8 | Iustin Pop | config.write("kernel = '%s'\n" % kpath)
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335 | 03abdbe8 | Iustin Pop | |
336 | 03abdbe8 | Iustin Pop | # initrd handling
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337 | 03abdbe8 | Iustin Pop | if instance.initrd_path in (None, constants.VALUE_DEFAULT): |
338 | 03abdbe8 | Iustin Pop | if os.path.exists(constants.XEN_INITRD):
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339 | 03abdbe8 | Iustin Pop | initrd_path = constants.XEN_INITRD |
340 | 03abdbe8 | Iustin Pop | else:
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341 | 03abdbe8 | Iustin Pop | initrd_path = None
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342 | 03abdbe8 | Iustin Pop | elif instance.initrd_path == constants.VALUE_NONE:
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343 | 03abdbe8 | Iustin Pop | initrd_path = None
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344 | 03abdbe8 | Iustin Pop | else:
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345 | 03abdbe8 | Iustin Pop | if not os.path.exists(instance.initrd_path): |
346 | 03abdbe8 | Iustin Pop | raise errors.HypervisorError("The initrd %s for instance %s is" |
347 | 03abdbe8 | Iustin Pop | " missing" % (instance.initrd_path,
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348 | 03abdbe8 | Iustin Pop | instance.name)) |
349 | 03abdbe8 | Iustin Pop | initrd_path = instance.initrd_path |
350 | 03abdbe8 | Iustin Pop | |
351 | 03abdbe8 | Iustin Pop | if initrd_path:
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352 | 03abdbe8 | Iustin Pop | config.write("ramdisk = '%s'\n" % initrd_path)
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353 | 03abdbe8 | Iustin Pop | |
354 | 03abdbe8 | Iustin Pop | # rest of the settings
|
355 | 631eb662 | Alexander Schreiber | config.write("memory = %d\n" % instance.memory)
|
356 | 631eb662 | Alexander Schreiber | config.write("vcpus = %d\n" % instance.vcpus)
|
357 | 631eb662 | Alexander Schreiber | config.write("name = '%s'\n" % instance.name)
|
358 | 631eb662 | Alexander Schreiber | |
359 | 631eb662 | Alexander Schreiber | vif_data = [] |
360 | 631eb662 | Alexander Schreiber | for nic in instance.nics: |
361 | 631eb662 | Alexander Schreiber | nic_str = "mac=%s, bridge=%s" % (nic.mac, nic.bridge)
|
362 | 631eb662 | Alexander Schreiber | ip = getattr(nic, "ip", None) |
363 | 631eb662 | Alexander Schreiber | if ip is not None: |
364 | 631eb662 | Alexander Schreiber | nic_str += ", ip=%s" % ip
|
365 | 631eb662 | Alexander Schreiber | vif_data.append("'%s'" % nic_str)
|
366 | 631eb662 | Alexander Schreiber | |
367 | 631eb662 | Alexander Schreiber | config.write("vif = [%s]\n" % ",".join(vif_data)) |
368 | 631eb662 | Alexander Schreiber | |
369 | 631eb662 | Alexander Schreiber | disk_data = ["'phy:%s,%s,w'" % (rldev.dev_path, cfdev.iv_name)
|
370 | 631eb662 | Alexander Schreiber | for cfdev, rldev in block_devices] |
371 | 631eb662 | Alexander Schreiber | config.write("disk = [%s]\n" % ",".join(disk_data)) |
372 | 631eb662 | Alexander Schreiber | |
373 | 631eb662 | Alexander Schreiber | config.write("root = '/dev/sda ro'\n")
|
374 | 631eb662 | Alexander Schreiber | config.write("on_poweroff = 'destroy'\n")
|
375 | 631eb662 | Alexander Schreiber | config.write("on_reboot = 'restart'\n")
|
376 | 631eb662 | Alexander Schreiber | config.write("on_crash = 'restart'\n")
|
377 | 631eb662 | Alexander Schreiber | if extra_args:
|
378 | 631eb662 | Alexander Schreiber | config.write("extra = '%s'\n" % extra_args)
|
379 | 631eb662 | Alexander Schreiber | # just in case it exists
|
380 | 631eb662 | Alexander Schreiber | utils.RemoveFile("/etc/xen/auto/%s" % instance.name)
|
381 | 01121d61 | Alexander Schreiber | try:
|
382 | 01121d61 | Alexander Schreiber | f = open("/etc/xen/%s" % instance.name, "w") |
383 | 01121d61 | Alexander Schreiber | try:
|
384 | 01121d61 | Alexander Schreiber | f.write(config.getvalue()) |
385 | 01121d61 | Alexander Schreiber | finally:
|
386 | 01121d61 | Alexander Schreiber | f.close() |
387 | 01121d61 | Alexander Schreiber | except IOError, err: |
388 | 01121d61 | Alexander Schreiber | raise errors.OpExecError("Cannot write Xen instance confile" |
389 | 01121d61 | Alexander Schreiber | " file /etc/xen/%s: %s" % (instance.name, err))
|
390 | 631eb662 | Alexander Schreiber | return True |
391 | 631eb662 | Alexander Schreiber | |
392 | 631eb662 | Alexander Schreiber | @staticmethod
|
393 | 631eb662 | Alexander Schreiber | def GetShellCommandForConsole(instance): |
394 | 631eb662 | Alexander Schreiber | """Return a command for connecting to the console of an instance.
|
395 | 631eb662 | Alexander Schreiber |
|
396 | 631eb662 | Alexander Schreiber | """
|
397 | 631eb662 | Alexander Schreiber | return "xm console %s" % instance.name |
398 | 631eb662 | Alexander Schreiber | |
399 | 631eb662 | Alexander Schreiber | |
400 | a8083063 | Iustin Pop | class FakeHypervisor(BaseHypervisor): |
401 | a8083063 | Iustin Pop | """Fake hypervisor interface.
|
402 | a8083063 | Iustin Pop |
|
403 | a8083063 | Iustin Pop | This can be used for testing the ganeti code without having to have
|
404 | a8083063 | Iustin Pop | a real virtualisation software installed.
|
405 | a8083063 | Iustin Pop |
|
406 | a8083063 | Iustin Pop | """
|
407 | 1ed70996 | Iustin Pop | _ROOT_DIR = constants.RUN_DIR + "/ganeti-fake-hypervisor"
|
408 | a8083063 | Iustin Pop | |
409 | a8083063 | Iustin Pop | def __init__(self): |
410 | a8083063 | Iustin Pop | BaseHypervisor.__init__(self)
|
411 | a8083063 | Iustin Pop | if not os.path.exists(self._ROOT_DIR): |
412 | a8083063 | Iustin Pop | os.mkdir(self._ROOT_DIR)
|
413 | a8083063 | Iustin Pop | |
414 | a8083063 | Iustin Pop | def ListInstances(self): |
415 | a8083063 | Iustin Pop | """Get the list of running instances.
|
416 | a8083063 | Iustin Pop |
|
417 | a8083063 | Iustin Pop | """
|
418 | a8083063 | Iustin Pop | return os.listdir(self._ROOT_DIR) |
419 | a8083063 | Iustin Pop | |
420 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
421 | a8083063 | Iustin Pop | """Get instance properties.
|
422 | a8083063 | Iustin Pop |
|
423 | a8083063 | Iustin Pop | Args:
|
424 | a8083063 | Iustin Pop | instance_name: the instance name
|
425 | a8083063 | Iustin Pop |
|
426 | a8083063 | Iustin Pop | Returns:
|
427 | a8083063 | Iustin Pop | (name, id, memory, vcpus, stat, times)
|
428 | a8083063 | Iustin Pop | """
|
429 | a8083063 | Iustin Pop | file_name = "%s/%s" % (self._ROOT_DIR, instance_name) |
430 | a8083063 | Iustin Pop | if not os.path.exists(file_name): |
431 | a8083063 | Iustin Pop | return None |
432 | a8083063 | Iustin Pop | try:
|
433 | a8083063 | Iustin Pop | fh = file(file_name, "r") |
434 | a8083063 | Iustin Pop | try:
|
435 | a8083063 | Iustin Pop | inst_id = fh.readline().strip() |
436 | a8083063 | Iustin Pop | memory = fh.readline().strip() |
437 | a8083063 | Iustin Pop | vcpus = fh.readline().strip() |
438 | a8083063 | Iustin Pop | stat = "---b-"
|
439 | a8083063 | Iustin Pop | times = "0"
|
440 | a8083063 | Iustin Pop | return (instance_name, inst_id, memory, vcpus, stat, times)
|
441 | a8083063 | Iustin Pop | finally:
|
442 | a8083063 | Iustin Pop | fh.close() |
443 | a8083063 | Iustin Pop | except IOError, err: |
444 | a8083063 | Iustin Pop | raise HypervisorError("Failed to list instance %s: %s" % |
445 | a8083063 | Iustin Pop | (instance_name, err)) |
446 | a8083063 | Iustin Pop | |
447 | a8083063 | Iustin Pop | def GetAllInstancesInfo(self): |
448 | a8083063 | Iustin Pop | """Get properties of all instances.
|
449 | a8083063 | Iustin Pop |
|
450 | a8083063 | Iustin Pop | Returns:
|
451 | a8083063 | Iustin Pop | [(name, id, memory, vcpus, stat, times),...]
|
452 | a8083063 | Iustin Pop | """
|
453 | a8083063 | Iustin Pop | data = [] |
454 | a8083063 | Iustin Pop | for file_name in os.listdir(self._ROOT_DIR): |
455 | a8083063 | Iustin Pop | try:
|
456 | a8083063 | Iustin Pop | fh = file(self._ROOT_DIR+"/"+file_name, "r") |
457 | a8083063 | Iustin Pop | inst_id = "-1"
|
458 | a8083063 | Iustin Pop | memory = "0"
|
459 | a8083063 | Iustin Pop | stat = "-----"
|
460 | a8083063 | Iustin Pop | times = "-1"
|
461 | a8083063 | Iustin Pop | try:
|
462 | a8083063 | Iustin Pop | inst_id = fh.readline().strip() |
463 | a8083063 | Iustin Pop | memory = fh.readline().strip() |
464 | a8083063 | Iustin Pop | vcpus = fh.readline().strip() |
465 | a8083063 | Iustin Pop | stat = "---b-"
|
466 | a8083063 | Iustin Pop | times = "0"
|
467 | a8083063 | Iustin Pop | finally:
|
468 | a8083063 | Iustin Pop | fh.close() |
469 | a8083063 | Iustin Pop | data.append((file_name, inst_id, memory, vcpus, stat, times)) |
470 | a8083063 | Iustin Pop | except IOError, err: |
471 | a8083063 | Iustin Pop | raise HypervisorError("Failed to list instances: %s" % err) |
472 | a8083063 | Iustin Pop | return data
|
473 | a8083063 | Iustin Pop | |
474 | a8083063 | Iustin Pop | def StartInstance(self, instance, force, extra_args): |
475 | a8083063 | Iustin Pop | """Start an instance.
|
476 | a8083063 | Iustin Pop |
|
477 | a8083063 | Iustin Pop | For the fake hypervisor, it just creates a file in the base dir,
|
478 | a8083063 | Iustin Pop | creating an exception if it already exists. We don't actually
|
479 | a8083063 | Iustin Pop | handle race conditions properly, since these are *FAKE* instances.
|
480 | a8083063 | Iustin Pop |
|
481 | a8083063 | Iustin Pop | """
|
482 | a8083063 | Iustin Pop | file_name = self._ROOT_DIR + "/%s" % instance.name |
483 | a8083063 | Iustin Pop | if os.path.exists(file_name):
|
484 | a8083063 | Iustin Pop | raise HypervisorError("Failed to start instance %s: %s" % |
485 | a8083063 | Iustin Pop | (instance.name, "already running"))
|
486 | a8083063 | Iustin Pop | try:
|
487 | a8083063 | Iustin Pop | fh = file(file_name, "w") |
488 | a8083063 | Iustin Pop | try:
|
489 | a8083063 | Iustin Pop | fh.write("0\n%d\n%d\n" % (instance.memory, instance.vcpus))
|
490 | a8083063 | Iustin Pop | finally:
|
491 | a8083063 | Iustin Pop | fh.close() |
492 | a8083063 | Iustin Pop | except IOError, err: |
493 | a8083063 | Iustin Pop | raise HypervisorError("Failed to start instance %s: %s" % |
494 | a8083063 | Iustin Pop | (instance.name, err)) |
495 | a8083063 | Iustin Pop | |
496 | a8083063 | Iustin Pop | def StopInstance(self, instance, force=False): |
497 | a8083063 | Iustin Pop | """Stop an instance.
|
498 | a8083063 | Iustin Pop |
|
499 | a8083063 | Iustin Pop | For the fake hypervisor, this just removes the file in the base
|
500 | a8083063 | Iustin Pop | dir, if it exist, otherwise we raise an exception.
|
501 | a8083063 | Iustin Pop |
|
502 | a8083063 | Iustin Pop | """
|
503 | a8083063 | Iustin Pop | file_name = self._ROOT_DIR + "/%s" % instance.name |
504 | a8083063 | Iustin Pop | if not os.path.exists(file_name): |
505 | a8083063 | Iustin Pop | raise HypervisorError("Failed to stop instance %s: %s" % |
506 | a8083063 | Iustin Pop | (instance.name, "not running"))
|
507 | a8083063 | Iustin Pop | utils.RemoveFile(file_name) |
508 | a8083063 | Iustin Pop | |
509 | 7e1394dc | Alexander Schreiber | def RebootInstance(self, instance): |
510 | 7e1394dc | Alexander Schreiber | """Reboot an instance.
|
511 | 7e1394dc | Alexander Schreiber |
|
512 | 7e1394dc | Alexander Schreiber | For the fake hypervisor, this does nothing.
|
513 | 7e1394dc | Alexander Schreiber |
|
514 | 7e1394dc | Alexander Schreiber | """
|
515 | 7e1394dc | Alexander Schreiber | return
|
516 | 7e1394dc | Alexander Schreiber | |
517 | a8083063 | Iustin Pop | def GetNodeInfo(self): |
518 | a8083063 | Iustin Pop | """Return information about the node.
|
519 | a8083063 | Iustin Pop |
|
520 | a8083063 | Iustin Pop | The return value is a dict, which has to have the following items:
|
521 | a8083063 | Iustin Pop | (all values in MiB)
|
522 | a8083063 | Iustin Pop | - memory_total: the total memory size on the node
|
523 | a8083063 | Iustin Pop | - memory_free: the available memory on the node for instances
|
524 | a8083063 | Iustin Pop | - memory_dom0: the memory used by the node itself, if available
|
525 | a8083063 | Iustin Pop |
|
526 | a8083063 | Iustin Pop | """
|
527 | a8083063 | Iustin Pop | # global ram usage from the xm info command
|
528 | a8083063 | Iustin Pop | # memory : 3583
|
529 | a8083063 | Iustin Pop | # free_memory : 747
|
530 | a8083063 | Iustin Pop | # note: in xen 3, memory has changed to total_memory
|
531 | a8083063 | Iustin Pop | try:
|
532 | a8083063 | Iustin Pop | fh = file("/proc/meminfo") |
533 | a8083063 | Iustin Pop | try:
|
534 | a8083063 | Iustin Pop | data = fh.readlines() |
535 | a8083063 | Iustin Pop | finally:
|
536 | a8083063 | Iustin Pop | fh.close() |
537 | a8083063 | Iustin Pop | except IOError, err: |
538 | a8083063 | Iustin Pop | raise HypervisorError("Failed to list node info: %s" % err) |
539 | a8083063 | Iustin Pop | |
540 | a8083063 | Iustin Pop | result = {} |
541 | a8083063 | Iustin Pop | sum_free = 0
|
542 | a8083063 | Iustin Pop | for line in data: |
543 | a8083063 | Iustin Pop | splitfields = line.split(":", 1) |
544 | a8083063 | Iustin Pop | |
545 | a8083063 | Iustin Pop | if len(splitfields) > 1: |
546 | a8083063 | Iustin Pop | key = splitfields[0].strip()
|
547 | a8083063 | Iustin Pop | val = splitfields[1].strip()
|
548 | a8083063 | Iustin Pop | if key == 'MemTotal': |
549 | a8083063 | Iustin Pop | result['memory_total'] = int(val.split()[0])/1024 |
550 | a8083063 | Iustin Pop | elif key in ('MemFree', 'Buffers', 'Cached'): |
551 | a8083063 | Iustin Pop | sum_free += int(val.split()[0])/1024 |
552 | a8083063 | Iustin Pop | elif key == 'Active': |
553 | a8083063 | Iustin Pop | result['memory_dom0'] = int(val.split()[0])/1024 |
554 | a8083063 | Iustin Pop | |
555 | a8083063 | Iustin Pop | result['memory_free'] = sum_free
|
556 | a8083063 | Iustin Pop | return result
|
557 | a8083063 | Iustin Pop | |
558 | a8083063 | Iustin Pop | @staticmethod
|
559 | 30989e69 | Alexander Schreiber | def GetShellCommandForConsole(instance): |
560 | a8083063 | Iustin Pop | """Return a command for connecting to the console of an instance.
|
561 | a8083063 | Iustin Pop |
|
562 | a8083063 | Iustin Pop | """
|
563 | a8083063 | Iustin Pop | return "echo Console not available for fake hypervisor" |
564 | a8083063 | Iustin Pop | |
565 | a8083063 | Iustin Pop | def Verify(self): |
566 | a8083063 | Iustin Pop | """Verify the hypervisor.
|
567 | a8083063 | Iustin Pop |
|
568 | a8083063 | Iustin Pop | For the fake hypervisor, it just checks the existence of the base
|
569 | a8083063 | Iustin Pop | dir.
|
570 | a8083063 | Iustin Pop |
|
571 | a8083063 | Iustin Pop | """
|
572 | a8083063 | Iustin Pop | if not os.path.exists(self._ROOT_DIR): |
573 | a8083063 | Iustin Pop | return "The required directory '%s' does not exist." % self._ROOT_DIR |
574 | 2a6469d5 | Alexander Schreiber | |
575 | 2a6469d5 | Alexander Schreiber | |
576 | 2a6469d5 | Alexander Schreiber | class XenHvmHypervisor(XenHypervisor): |
577 | 2a6469d5 | Alexander Schreiber | """Xen HVM hypervisor interface"""
|
578 | 2a6469d5 | Alexander Schreiber | |
579 | 2a6469d5 | Alexander Schreiber | @staticmethod
|
580 | 2a6469d5 | Alexander Schreiber | def _WriteConfigFile(instance, block_devices, extra_args): |
581 | 2a6469d5 | Alexander Schreiber | """Create a Xen 3.1 HVM config file.
|
582 | 2a6469d5 | Alexander Schreiber |
|
583 | 2a6469d5 | Alexander Schreiber | """
|
584 | 2a6469d5 | Alexander Schreiber | config = StringIO() |
585 | 2a6469d5 | Alexander Schreiber | config.write("# this is autogenerated by Ganeti, please do not edit\n#\n")
|
586 | 2a6469d5 | Alexander Schreiber | config.write("kernel = '/usr/lib/xen/boot/hvmloader'\n")
|
587 | 2a6469d5 | Alexander Schreiber | config.write("builder = 'hvm'\n")
|
588 | 2a6469d5 | Alexander Schreiber | config.write("memory = %d\n" % instance.memory)
|
589 | 2a6469d5 | Alexander Schreiber | config.write("vcpus = %d\n" % instance.vcpus)
|
590 | 2a6469d5 | Alexander Schreiber | config.write("name = '%s'\n" % instance.name)
|
591 | 2a6469d5 | Alexander Schreiber | config.write("pae = 1\n")
|
592 | 2a6469d5 | Alexander Schreiber | config.write("acpi = 1\n")
|
593 | 2a6469d5 | Alexander Schreiber | config.write("apic = 1\n")
|
594 | 2a6469d5 | Alexander Schreiber | arch = os.uname()[4]
|
595 | 2a6469d5 | Alexander Schreiber | if '64' in arch: |
596 | 2a6469d5 | Alexander Schreiber | config.write("device_model = '/usr/lib64/xen/bin/qemu-dm'\n")
|
597 | 2a6469d5 | Alexander Schreiber | else:
|
598 | 2a6469d5 | Alexander Schreiber | config.write("device_model = '/usr/lib/xen/bin/qemu-dm'\n")
|
599 | 25c5878d | Alexander Schreiber | if instance.hvm_boot_order is None: |
600 | 25c5878d | Alexander Schreiber | config.write("boot = '%s'\n" % constants.HT_HVM_DEFAULT_BOOT_ORDER)
|
601 | 25c5878d | Alexander Schreiber | else:
|
602 | 25c5878d | Alexander Schreiber | config.write("boot = '%s'\n" % instance.hvm_boot_order)
|
603 | 2a6469d5 | Alexander Schreiber | config.write("sdl = 0\n")
|
604 | cdeef2ca | Alexander Schreiber | config.write("usb = 1\n");
|
605 | cdeef2ca | Alexander Schreiber | config.write("usbdevice = 'tablet'\n");
|
606 | 2a6469d5 | Alexander Schreiber | config.write("vnc = 1\n")
|
607 | 2a6469d5 | Alexander Schreiber | config.write("vnclisten = '0.0.0.0'\n")
|
608 | 2a6469d5 | Alexander Schreiber | |
609 | 2a6469d5 | Alexander Schreiber | if instance.network_port > constants.HT_HVM_VNC_BASE_PORT:
|
610 | 2a6469d5 | Alexander Schreiber | display = instance.network_port - constants.HT_HVM_VNC_BASE_PORT |
611 | 2a6469d5 | Alexander Schreiber | config.write("vncdisplay = %s\n" % display)
|
612 | 2a6469d5 | Alexander Schreiber | config.write("vncunused = 0\n")
|
613 | 2a6469d5 | Alexander Schreiber | else:
|
614 | 2a6469d5 | Alexander Schreiber | config.write("# vncdisplay = 1\n")
|
615 | 2a6469d5 | Alexander Schreiber | config.write("vncunused = 1\n")
|
616 | 2a6469d5 | Alexander Schreiber | |
617 | 2a6469d5 | Alexander Schreiber | try:
|
618 | 2a6469d5 | Alexander Schreiber | password_file = open(constants.VNC_PASSWORD_FILE, "r") |
619 | 2a6469d5 | Alexander Schreiber | try:
|
620 | 2a6469d5 | Alexander Schreiber | password = password_file.readline() |
621 | 2a6469d5 | Alexander Schreiber | finally:
|
622 | 2a6469d5 | Alexander Schreiber | password_file.close() |
623 | 2a6469d5 | Alexander Schreiber | except IOError: |
624 | 2a6469d5 | Alexander Schreiber | raise errors.OpExecError("failed to open VNC password file %s " % |
625 | 2a6469d5 | Alexander Schreiber | constants.VNC_PASSWORD_FILE) |
626 | 2a6469d5 | Alexander Schreiber | |
627 | 2a6469d5 | Alexander Schreiber | config.write("vncpasswd = '%s'\n" % password.rstrip())
|
628 | 2a6469d5 | Alexander Schreiber | |
629 | 2a6469d5 | Alexander Schreiber | config.write("serial = 'pty'\n")
|
630 | 2a6469d5 | Alexander Schreiber | config.write("localtime = 1\n")
|
631 | 2a6469d5 | Alexander Schreiber | |
632 | 2a6469d5 | Alexander Schreiber | vif_data = [] |
633 | 2a6469d5 | Alexander Schreiber | for nic in instance.nics: |
634 | 2a6469d5 | Alexander Schreiber | nic_str = "mac=%s, bridge=%s, type=ioemu" % (nic.mac, nic.bridge)
|
635 | 2a6469d5 | Alexander Schreiber | ip = getattr(nic, "ip", None) |
636 | 2a6469d5 | Alexander Schreiber | if ip is not None: |
637 | 2a6469d5 | Alexander Schreiber | nic_str += ", ip=%s" % ip
|
638 | 2a6469d5 | Alexander Schreiber | vif_data.append("'%s'" % nic_str)
|
639 | 2a6469d5 | Alexander Schreiber | |
640 | 2a6469d5 | Alexander Schreiber | config.write("vif = [%s]\n" % ",".join(vif_data)) |
641 | 2a6469d5 | Alexander Schreiber | |
642 | 2a6469d5 | Alexander Schreiber | disk_data = ["'phy:%s,%s,w'" %
|
643 | 2a6469d5 | Alexander Schreiber | (rldev.dev_path, cfdev.iv_name.replace("sd", "ioemu:hd")) |
644 | 2a6469d5 | Alexander Schreiber | for cfdev, rldev in block_devices] |
645 | 2a6469d5 | Alexander Schreiber | iso = "'file:/srv/ganeti/iso/hvm-install.iso,hdc:cdrom,r'"
|
646 | 2a6469d5 | Alexander Schreiber | config.write("disk = [%s, %s]\n" % (",".join(disk_data), iso) ) |
647 | 2a6469d5 | Alexander Schreiber | |
648 | 2a6469d5 | Alexander Schreiber | config.write("on_poweroff = 'destroy'\n")
|
649 | 2a6469d5 | Alexander Schreiber | config.write("on_reboot = 'restart'\n")
|
650 | 2a6469d5 | Alexander Schreiber | config.write("on_crash = 'restart'\n")
|
651 | 2a6469d5 | Alexander Schreiber | if extra_args:
|
652 | 2a6469d5 | Alexander Schreiber | config.write("extra = '%s'\n" % extra_args)
|
653 | 2a6469d5 | Alexander Schreiber | # just in case it exists
|
654 | 2a6469d5 | Alexander Schreiber | utils.RemoveFile("/etc/xen/auto/%s" % instance.name)
|
655 | 2a6469d5 | Alexander Schreiber | try:
|
656 | 2a6469d5 | Alexander Schreiber | f = open("/etc/xen/%s" % instance.name, "w") |
657 | 2a6469d5 | Alexander Schreiber | try:
|
658 | 2a6469d5 | Alexander Schreiber | f.write(config.getvalue()) |
659 | 2a6469d5 | Alexander Schreiber | finally:
|
660 | 2a6469d5 | Alexander Schreiber | f.close() |
661 | 2a6469d5 | Alexander Schreiber | except IOError, err: |
662 | 2a6469d5 | Alexander Schreiber | raise errors.OpExecError("Cannot write Xen instance confile" |
663 | 2a6469d5 | Alexander Schreiber | " file /etc/xen/%s: %s" % (instance.name, err))
|
664 | 2a6469d5 | Alexander Schreiber | return True |
665 | 2a6469d5 | Alexander Schreiber | |
666 | 2a6469d5 | Alexander Schreiber | @staticmethod
|
667 | 2a6469d5 | Alexander Schreiber | def GetShellCommandForConsole(instance): |
668 | 2a6469d5 | Alexander Schreiber | """Return a command for connecting to the console of an instance.
|
669 | 2a6469d5 | Alexander Schreiber |
|
670 | 2a6469d5 | Alexander Schreiber | """
|
671 | 2a6469d5 | Alexander Schreiber | if instance.network_port is None: |
672 | 2a6469d5 | Alexander Schreiber | raise errors.OpExecError("no console port defined for %s" |
673 | 2a6469d5 | Alexander Schreiber | % instance.name) |
674 | 2a6469d5 | Alexander Schreiber | else:
|
675 | 2a6469d5 | Alexander Schreiber | raise errors.OpExecError("no PTY console, connect to %s:%s via VNC" |
676 | 2a6469d5 | Alexander Schreiber | % (instance.primary_node, |
677 | 2a6469d5 | Alexander Schreiber | instance.network_port)) |