root / lib / hypervisor / hv_xen.py @ 78411c60
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1 | 65a6f9b7 | Michael Hanselmann | #
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2 | 65a6f9b7 | Michael Hanselmann | #
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3 | 65a6f9b7 | Michael Hanselmann | |
4 | 65a6f9b7 | Michael Hanselmann | # Copyright (C) 2006, 2007, 2008 Google Inc.
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5 | 65a6f9b7 | Michael Hanselmann | #
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6 | 65a6f9b7 | Michael Hanselmann | # This program is free software; you can redistribute it and/or modify
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7 | 65a6f9b7 | Michael Hanselmann | # it under the terms of the GNU General Public License as published by
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8 | 65a6f9b7 | Michael Hanselmann | # the Free Software Foundation; either version 2 of the License, or
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9 | 65a6f9b7 | Michael Hanselmann | # (at your option) any later version.
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10 | 65a6f9b7 | Michael Hanselmann | #
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11 | 65a6f9b7 | Michael Hanselmann | # This program is distributed in the hope that it will be useful, but
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12 | 65a6f9b7 | Michael Hanselmann | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 65a6f9b7 | Michael Hanselmann | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 65a6f9b7 | Michael Hanselmann | # General Public License for more details.
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15 | 65a6f9b7 | Michael Hanselmann | #
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16 | 65a6f9b7 | Michael Hanselmann | # You should have received a copy of the GNU General Public License
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17 | 65a6f9b7 | Michael Hanselmann | # along with this program; if not, write to the Free Software
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18 | 65a6f9b7 | Michael Hanselmann | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | 65a6f9b7 | Michael Hanselmann | # 02110-1301, USA.
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20 | 65a6f9b7 | Michael Hanselmann | |
21 | 65a6f9b7 | Michael Hanselmann | |
22 | 65a6f9b7 | Michael Hanselmann | """Xen hypervisors
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23 | 65a6f9b7 | Michael Hanselmann |
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24 | 65a6f9b7 | Michael Hanselmann | """
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25 | 65a6f9b7 | Michael Hanselmann | |
26 | 65a6f9b7 | Michael Hanselmann | import os |
27 | 65a6f9b7 | Michael Hanselmann | import os.path |
28 | b48909c8 | Iustin Pop | import logging |
29 | 65a6f9b7 | Michael Hanselmann | from cStringIO import StringIO |
30 | 65a6f9b7 | Michael Hanselmann | |
31 | 65a6f9b7 | Michael Hanselmann | from ganeti import constants |
32 | 65a6f9b7 | Michael Hanselmann | from ganeti import errors |
33 | 65a6f9b7 | Michael Hanselmann | from ganeti import utils |
34 | a2d32034 | Michael Hanselmann | from ganeti.hypervisor import hv_base |
35 | 65a6f9b7 | Michael Hanselmann | |
36 | 65a6f9b7 | Michael Hanselmann | |
37 | a2d32034 | Michael Hanselmann | class XenHypervisor(hv_base.BaseHypervisor): |
38 | 65a6f9b7 | Michael Hanselmann | """Xen generic hypervisor interface
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39 | 65a6f9b7 | Michael Hanselmann |
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40 | 65a6f9b7 | Michael Hanselmann | This is the Xen base class used for both Xen PVM and HVM. It contains
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41 | 65a6f9b7 | Michael Hanselmann | all the functionality that is identical for both.
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42 | 65a6f9b7 | Michael Hanselmann |
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43 | 65a6f9b7 | Michael Hanselmann | """
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44 | 7dd106d3 | Iustin Pop | REBOOT_RETRY_COUNT = 60
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45 | 7dd106d3 | Iustin Pop | REBOOT_RETRY_INTERVAL = 10
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46 | 65a6f9b7 | Michael Hanselmann | |
47 | 3680f662 | Guido Trotter | ANCILLARY_FILES = [ |
48 | 3680f662 | Guido Trotter | '/etc/xen/xend-config.sxp',
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49 | 3680f662 | Guido Trotter | '/etc/xen/scripts/vif-bridge',
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50 | 3680f662 | Guido Trotter | ] |
51 | 3680f662 | Guido Trotter | |
52 | 5661b908 | Iustin Pop | @classmethod
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53 | 07813a9e | Iustin Pop | def _WriteConfigFile(cls, instance, block_devices): |
54 | 65a6f9b7 | Michael Hanselmann | """Write the Xen config file for the instance.
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55 | 65a6f9b7 | Michael Hanselmann |
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56 | 65a6f9b7 | Michael Hanselmann | """
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57 | 65a6f9b7 | Michael Hanselmann | raise NotImplementedError |
58 | 65a6f9b7 | Michael Hanselmann | |
59 | 65a6f9b7 | Michael Hanselmann | @staticmethod
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60 | 4390ccff | Guido Trotter | def _WriteConfigFileStatic(instance_name, data): |
61 | 4390ccff | Guido Trotter | """Write the Xen config file for the instance.
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62 | 4390ccff | Guido Trotter |
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63 | 4390ccff | Guido Trotter | This version of the function just writes the config file from static data.
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64 | 4390ccff | Guido Trotter |
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65 | 4390ccff | Guido Trotter | """
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66 | 4390ccff | Guido Trotter | utils.WriteFile("/etc/xen/%s" % instance_name, data=data)
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67 | 4390ccff | Guido Trotter | |
68 | 4390ccff | Guido Trotter | @staticmethod
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69 | 4390ccff | Guido Trotter | def _ReadConfigFile(instance_name): |
70 | 4390ccff | Guido Trotter | """Returns the contents of the instance config file.
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71 | 4390ccff | Guido Trotter |
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72 | 4390ccff | Guido Trotter | """
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73 | 4390ccff | Guido Trotter | try:
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74 | 4390ccff | Guido Trotter | file_content = utils.ReadFile("/etc/xen/%s" % instance_name)
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75 | 4390ccff | Guido Trotter | except EnvironmentError, err: |
76 | 4390ccff | Guido Trotter | raise errors.HypervisorError("Failed to load Xen config file: %s" % err) |
77 | 4390ccff | Guido Trotter | return file_content
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78 | 4390ccff | Guido Trotter | |
79 | 4390ccff | Guido Trotter | @staticmethod
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80 | 53c776b5 | Iustin Pop | def _RemoveConfigFile(instance_name): |
81 | 65a6f9b7 | Michael Hanselmann | """Remove the xen configuration file.
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82 | 65a6f9b7 | Michael Hanselmann |
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83 | 65a6f9b7 | Michael Hanselmann | """
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84 | 53c776b5 | Iustin Pop | utils.RemoveFile("/etc/xen/%s" % instance_name)
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85 | 65a6f9b7 | Michael Hanselmann | |
86 | 65a6f9b7 | Michael Hanselmann | @staticmethod
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87 | 06b78e8b | Michael Hanselmann | def _RunXmList(xmlist_errors): |
88 | 06b78e8b | Michael Hanselmann | """Helper function for L{_GetXMList} to run "xm list".
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89 | 06b78e8b | Michael Hanselmann |
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90 | 06b78e8b | Michael Hanselmann | """
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91 | 06b78e8b | Michael Hanselmann | result = utils.RunCmd(["xm", "list"]) |
92 | 06b78e8b | Michael Hanselmann | if result.failed:
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93 | 06b78e8b | Michael Hanselmann | logging.error("xm list failed (%s): %s", result.fail_reason,
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94 | 06b78e8b | Michael Hanselmann | result.output) |
95 | 06b78e8b | Michael Hanselmann | xmlist_errors.append(result) |
96 | 06b78e8b | Michael Hanselmann | raise utils.RetryAgain()
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97 | 06b78e8b | Michael Hanselmann | |
98 | 06b78e8b | Michael Hanselmann | # skip over the heading
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99 | 06b78e8b | Michael Hanselmann | return result.stdout.splitlines()[1:] |
100 | 06b78e8b | Michael Hanselmann | |
101 | 06b78e8b | Michael Hanselmann | @classmethod
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102 | 06b78e8b | Michael Hanselmann | def _GetXMList(cls, include_node): |
103 | 65a6f9b7 | Michael Hanselmann | """Return the list of running instances.
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104 | 65a6f9b7 | Michael Hanselmann |
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105 | c41eea6e | Iustin Pop | If the include_node argument is True, then we return information
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106 | 65a6f9b7 | Michael Hanselmann | for dom0 also, otherwise we filter that from the return value.
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107 | 65a6f9b7 | Michael Hanselmann |
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108 | c41eea6e | Iustin Pop | @return: list of (name, id, memory, vcpus, state, time spent)
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109 | 65a6f9b7 | Michael Hanselmann |
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110 | 65a6f9b7 | Michael Hanselmann | """
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111 | 06b78e8b | Michael Hanselmann | xmlist_errors = [] |
112 | 06b78e8b | Michael Hanselmann | try:
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113 | 06b78e8b | Michael Hanselmann | lines = utils.Retry(cls._RunXmList, 1, 5, args=(xmlist_errors, )) |
114 | 06b78e8b | Michael Hanselmann | except utils.RetryTimeout:
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115 | 06b78e8b | Michael Hanselmann | if xmlist_errors:
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116 | 06b78e8b | Michael Hanselmann | xmlist_result = xmlist_errors.pop() |
117 | 65a6f9b7 | Michael Hanselmann | |
118 | 06b78e8b | Michael Hanselmann | errmsg = ("xm list failed, timeout exceeded (%s): %s" %
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119 | 06b78e8b | Michael Hanselmann | (xmlist_result.fail_reason, xmlist_result.output)) |
120 | 06b78e8b | Michael Hanselmann | else:
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121 | 06b78e8b | Michael Hanselmann | errmsg = "xm list failed"
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122 | 06b78e8b | Michael Hanselmann | |
123 | 06b78e8b | Michael Hanselmann | raise errors.HypervisorError(errmsg)
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124 | 65a6f9b7 | Michael Hanselmann | |
125 | 65a6f9b7 | Michael Hanselmann | result = [] |
126 | 65a6f9b7 | Michael Hanselmann | for line in lines: |
127 | 65a6f9b7 | Michael Hanselmann | # The format of lines is:
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128 | 65a6f9b7 | Michael Hanselmann | # Name ID Mem(MiB) VCPUs State Time(s)
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129 | 65a6f9b7 | Michael Hanselmann | # Domain-0 0 3418 4 r----- 266.2
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130 | 65a6f9b7 | Michael Hanselmann | data = line.split() |
131 | 65a6f9b7 | Michael Hanselmann | if len(data) != 6: |
132 | 65a6f9b7 | Michael Hanselmann | raise errors.HypervisorError("Can't parse output of xm list," |
133 | 65a6f9b7 | Michael Hanselmann | " line: %s" % line)
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134 | 65a6f9b7 | Michael Hanselmann | try:
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135 | 65a6f9b7 | Michael Hanselmann | data[1] = int(data[1]) |
136 | 65a6f9b7 | Michael Hanselmann | data[2] = int(data[2]) |
137 | 65a6f9b7 | Michael Hanselmann | data[3] = int(data[3]) |
138 | 65a6f9b7 | Michael Hanselmann | data[5] = float(data[5]) |
139 | 65a6f9b7 | Michael Hanselmann | except ValueError, err: |
140 | 65a6f9b7 | Michael Hanselmann | raise errors.HypervisorError("Can't parse output of xm list," |
141 | 65a6f9b7 | Michael Hanselmann | " line: %s, error: %s" % (line, err))
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142 | 65a6f9b7 | Michael Hanselmann | |
143 | 65a6f9b7 | Michael Hanselmann | # skip the Domain-0 (optional)
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144 | 65a6f9b7 | Michael Hanselmann | if include_node or data[0] != 'Domain-0': |
145 | 65a6f9b7 | Michael Hanselmann | result.append(data) |
146 | 65a6f9b7 | Michael Hanselmann | |
147 | 65a6f9b7 | Michael Hanselmann | return result
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148 | 65a6f9b7 | Michael Hanselmann | |
149 | 65a6f9b7 | Michael Hanselmann | def ListInstances(self): |
150 | 65a6f9b7 | Michael Hanselmann | """Get the list of running instances.
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151 | 65a6f9b7 | Michael Hanselmann |
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152 | 65a6f9b7 | Michael Hanselmann | """
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153 | 65a6f9b7 | Michael Hanselmann | xm_list = self._GetXMList(False) |
154 | 65a6f9b7 | Michael Hanselmann | names = [info[0] for info in xm_list] |
155 | 65a6f9b7 | Michael Hanselmann | return names
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156 | 65a6f9b7 | Michael Hanselmann | |
157 | 65a6f9b7 | Michael Hanselmann | def GetInstanceInfo(self, instance_name): |
158 | 65a6f9b7 | Michael Hanselmann | """Get instance properties.
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159 | 65a6f9b7 | Michael Hanselmann |
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160 | c41eea6e | Iustin Pop | @param instance_name: the instance name
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161 | c41eea6e | Iustin Pop |
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162 | c41eea6e | Iustin Pop | @return: tuple (name, id, memory, vcpus, stat, times)
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163 | 65a6f9b7 | Michael Hanselmann |
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164 | 65a6f9b7 | Michael Hanselmann | """
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165 | 65a6f9b7 | Michael Hanselmann | xm_list = self._GetXMList(instance_name=="Domain-0") |
166 | 65a6f9b7 | Michael Hanselmann | result = None
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167 | 65a6f9b7 | Michael Hanselmann | for data in xm_list: |
168 | 65a6f9b7 | Michael Hanselmann | if data[0] == instance_name: |
169 | 65a6f9b7 | Michael Hanselmann | result = data |
170 | 65a6f9b7 | Michael Hanselmann | break
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171 | 65a6f9b7 | Michael Hanselmann | return result
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172 | 65a6f9b7 | Michael Hanselmann | |
173 | 65a6f9b7 | Michael Hanselmann | def GetAllInstancesInfo(self): |
174 | 65a6f9b7 | Michael Hanselmann | """Get properties of all instances.
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175 | 65a6f9b7 | Michael Hanselmann |
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176 | c41eea6e | Iustin Pop | @return: list of tuples (name, id, memory, vcpus, stat, times)
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177 | c41eea6e | Iustin Pop |
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178 | 65a6f9b7 | Michael Hanselmann | """
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179 | 65a6f9b7 | Michael Hanselmann | xm_list = self._GetXMList(False) |
180 | 65a6f9b7 | Michael Hanselmann | return xm_list
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181 | 65a6f9b7 | Michael Hanselmann | |
182 | 07813a9e | Iustin Pop | def StartInstance(self, instance, block_devices): |
183 | c41eea6e | Iustin Pop | """Start an instance.
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184 | c41eea6e | Iustin Pop |
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185 | c41eea6e | Iustin Pop | """
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186 | 07813a9e | Iustin Pop | self._WriteConfigFile(instance, block_devices)
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187 | 65a6f9b7 | Michael Hanselmann | result = utils.RunCmd(["xm", "create", instance.name]) |
188 | 65a6f9b7 | Michael Hanselmann | |
189 | 65a6f9b7 | Michael Hanselmann | if result.failed:
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190 | 65a6f9b7 | Michael Hanselmann | raise errors.HypervisorError("Failed to start instance %s: %s (%s)" % |
191 | 65a6f9b7 | Michael Hanselmann | (instance.name, result.fail_reason, |
192 | 65a6f9b7 | Michael Hanselmann | result.output)) |
193 | 65a6f9b7 | Michael Hanselmann | |
194 | 07b49e41 | Guido Trotter | def StopInstance(self, instance, force=False, retry=False): |
195 | c41eea6e | Iustin Pop | """Stop an instance.
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196 | c41eea6e | Iustin Pop |
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197 | c41eea6e | Iustin Pop | """
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198 | 53c776b5 | Iustin Pop | self._RemoveConfigFile(instance.name)
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199 | 65a6f9b7 | Michael Hanselmann | if force:
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200 | 65a6f9b7 | Michael Hanselmann | command = ["xm", "destroy", instance.name] |
201 | 65a6f9b7 | Michael Hanselmann | else:
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202 | 65a6f9b7 | Michael Hanselmann | command = ["xm", "shutdown", instance.name] |
203 | 65a6f9b7 | Michael Hanselmann | result = utils.RunCmd(command) |
204 | 65a6f9b7 | Michael Hanselmann | |
205 | 65a6f9b7 | Michael Hanselmann | if result.failed:
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206 | 3213d3c8 | Iustin Pop | raise errors.HypervisorError("Failed to stop instance %s: %s, %s" % |
207 | 3213d3c8 | Iustin Pop | (instance.name, result.fail_reason, |
208 | 3213d3c8 | Iustin Pop | result.output)) |
209 | 65a6f9b7 | Michael Hanselmann | |
210 | 65a6f9b7 | Michael Hanselmann | def RebootInstance(self, instance): |
211 | c41eea6e | Iustin Pop | """Reboot an instance.
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212 | c41eea6e | Iustin Pop |
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213 | c41eea6e | Iustin Pop | """
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214 | 7dd106d3 | Iustin Pop | ini_info = self.GetInstanceInfo(instance.name)
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215 | 65a6f9b7 | Michael Hanselmann | |
216 | 06b78e8b | Michael Hanselmann | result = utils.RunCmd(["xm", "reboot", instance.name]) |
217 | 65a6f9b7 | Michael Hanselmann | if result.failed:
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218 | 3213d3c8 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s: %s, %s" % |
219 | 3213d3c8 | Iustin Pop | (instance.name, result.fail_reason, |
220 | 3213d3c8 | Iustin Pop | result.output)) |
221 | 06b78e8b | Michael Hanselmann | |
222 | 06b78e8b | Michael Hanselmann | def _CheckInstance(): |
223 | 7dd106d3 | Iustin Pop | new_info = self.GetInstanceInfo(instance.name)
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224 | 06b78e8b | Michael Hanselmann | |
225 | 06b78e8b | Michael Hanselmann | # check if the domain ID has changed or the run time has decreased
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226 | 7dd106d3 | Iustin Pop | if new_info[1] != ini_info[1] or new_info[5] < ini_info[5]: |
227 | 06b78e8b | Michael Hanselmann | return
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228 | 7dd106d3 | Iustin Pop | |
229 | 06b78e8b | Michael Hanselmann | raise utils.RetryAgain()
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230 | 06b78e8b | Michael Hanselmann | |
231 | 06b78e8b | Michael Hanselmann | try:
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232 | 06b78e8b | Michael Hanselmann | utils.Retry(_CheckInstance, self.REBOOT_RETRY_INTERVAL,
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233 | 06b78e8b | Michael Hanselmann | self.REBOOT_RETRY_INTERVAL * self.REBOOT_RETRY_COUNT) |
234 | 06b78e8b | Michael Hanselmann | except utils.RetryTimeout:
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235 | 7dd106d3 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s: instance" |
236 | 7dd106d3 | Iustin Pop | " did not reboot in the expected interval" %
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237 | 7dd106d3 | Iustin Pop | (instance.name, )) |
238 | 65a6f9b7 | Michael Hanselmann | |
239 | 65a6f9b7 | Michael Hanselmann | def GetNodeInfo(self): |
240 | 65a6f9b7 | Michael Hanselmann | """Return information about the node.
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241 | 65a6f9b7 | Michael Hanselmann |
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242 | 0105bad3 | Iustin Pop | @return: a dict with the following keys (memory values in MiB):
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243 | c41eea6e | Iustin Pop | - memory_total: the total memory size on the node
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244 | c41eea6e | Iustin Pop | - memory_free: the available memory on the node for instances
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245 | c41eea6e | Iustin Pop | - memory_dom0: the memory used by the node itself, if available
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246 | 0105bad3 | Iustin Pop | - nr_cpus: total number of CPUs
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247 | 0105bad3 | Iustin Pop | - nr_nodes: in a NUMA system, the number of domains
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248 | 0105bad3 | Iustin Pop | - nr_sockets: the number of physical CPU sockets in the node
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249 | 65a6f9b7 | Michael Hanselmann |
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250 | 65a6f9b7 | Michael Hanselmann | """
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251 | 65a6f9b7 | Michael Hanselmann | # note: in xen 3, memory has changed to total_memory
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252 | 65a6f9b7 | Michael Hanselmann | result = utils.RunCmd(["xm", "info"]) |
253 | 65a6f9b7 | Michael Hanselmann | if result.failed:
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254 | b48909c8 | Iustin Pop | logging.error("Can't run 'xm info' (%s): %s", result.fail_reason,
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255 | b48909c8 | Iustin Pop | result.output) |
256 | 65a6f9b7 | Michael Hanselmann | return None |
257 | 65a6f9b7 | Michael Hanselmann | |
258 | 65a6f9b7 | Michael Hanselmann | xmoutput = result.stdout.splitlines() |
259 | 65a6f9b7 | Michael Hanselmann | result = {} |
260 | 0105bad3 | Iustin Pop | cores_per_socket = threads_per_core = nr_cpus = None
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261 | 65a6f9b7 | Michael Hanselmann | for line in xmoutput: |
262 | 65a6f9b7 | Michael Hanselmann | splitfields = line.split(":", 1) |
263 | 65a6f9b7 | Michael Hanselmann | |
264 | 65a6f9b7 | Michael Hanselmann | if len(splitfields) > 1: |
265 | 65a6f9b7 | Michael Hanselmann | key = splitfields[0].strip()
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266 | 65a6f9b7 | Michael Hanselmann | val = splitfields[1].strip()
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267 | 65a6f9b7 | Michael Hanselmann | if key == 'memory' or key == 'total_memory': |
268 | 65a6f9b7 | Michael Hanselmann | result['memory_total'] = int(val) |
269 | 65a6f9b7 | Michael Hanselmann | elif key == 'free_memory': |
270 | 65a6f9b7 | Michael Hanselmann | result['memory_free'] = int(val) |
271 | e8a4c138 | Iustin Pop | elif key == 'nr_cpus': |
272 | 0105bad3 | Iustin Pop | nr_cpus = result['cpu_total'] = int(val) |
273 | 0105bad3 | Iustin Pop | elif key == 'nr_nodes': |
274 | 0105bad3 | Iustin Pop | result['cpu_nodes'] = int(val) |
275 | 0105bad3 | Iustin Pop | elif key == 'cores_per_socket': |
276 | 0105bad3 | Iustin Pop | cores_per_socket = int(val)
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277 | 0105bad3 | Iustin Pop | elif key == 'threads_per_core': |
278 | 0105bad3 | Iustin Pop | threads_per_core = int(val)
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279 | 0105bad3 | Iustin Pop | |
280 | 0105bad3 | Iustin Pop | if (cores_per_socket is not None and |
281 | 0105bad3 | Iustin Pop | threads_per_core is not None and nr_cpus is not None): |
282 | 0105bad3 | Iustin Pop | result['cpu_sockets'] = nr_cpus / (cores_per_socket * threads_per_core)
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283 | 0105bad3 | Iustin Pop | |
284 | 65a6f9b7 | Michael Hanselmann | dom0_info = self.GetInstanceInfo("Domain-0") |
285 | 65a6f9b7 | Michael Hanselmann | if dom0_info is not None: |
286 | 65a6f9b7 | Michael Hanselmann | result['memory_dom0'] = dom0_info[2] |
287 | 65a6f9b7 | Michael Hanselmann | |
288 | 65a6f9b7 | Michael Hanselmann | return result
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289 | 65a6f9b7 | Michael Hanselmann | |
290 | 637ce7f9 | Guido Trotter | @classmethod
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291 | 5431b2e4 | Guido Trotter | def GetShellCommandForConsole(cls, instance, hvparams, beparams): |
292 | 65a6f9b7 | Michael Hanselmann | """Return a command for connecting to the console of an instance.
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293 | 65a6f9b7 | Michael Hanselmann |
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294 | 65a6f9b7 | Michael Hanselmann | """
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295 | 04c4330c | Alexander Schreiber | return "xm console %s" % instance.name |
296 | 04c4330c | Alexander Schreiber | |
297 | 65a6f9b7 | Michael Hanselmann | |
298 | 65a6f9b7 | Michael Hanselmann | def Verify(self): |
299 | 65a6f9b7 | Michael Hanselmann | """Verify the hypervisor.
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300 | 65a6f9b7 | Michael Hanselmann |
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301 | 65a6f9b7 | Michael Hanselmann | For Xen, this verifies that the xend process is running.
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302 | 65a6f9b7 | Michael Hanselmann |
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303 | 65a6f9b7 | Michael Hanselmann | """
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304 | e3e66f02 | Michael Hanselmann | result = utils.RunCmd(["xm", "info"]) |
305 | e3e66f02 | Michael Hanselmann | if result.failed:
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306 | 3213d3c8 | Iustin Pop | return "'xm info' failed: %s, %s" % (result.fail_reason, result.output) |
307 | 65a6f9b7 | Michael Hanselmann | |
308 | 65a6f9b7 | Michael Hanselmann | @staticmethod
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309 | 65a6f9b7 | Michael Hanselmann | def _GetConfigFileDiskData(disk_template, block_devices): |
310 | 65a6f9b7 | Michael Hanselmann | """Get disk directive for xen config file.
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311 | 65a6f9b7 | Michael Hanselmann |
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312 | 65a6f9b7 | Michael Hanselmann | This method builds the xen config disk directive according to the
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313 | 65a6f9b7 | Michael Hanselmann | given disk_template and block_devices.
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314 | 65a6f9b7 | Michael Hanselmann |
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315 | c41eea6e | Iustin Pop | @param disk_template: string containing instance disk template
|
316 | c41eea6e | Iustin Pop | @param block_devices: list of tuples (cfdev, rldev):
|
317 | c41eea6e | Iustin Pop | - cfdev: dict containing ganeti config disk part
|
318 | c41eea6e | Iustin Pop | - rldev: ganeti.bdev.BlockDev object
|
319 | 65a6f9b7 | Michael Hanselmann |
|
320 | c41eea6e | Iustin Pop | @return: string containing disk directive for xen instance config file
|
321 | 65a6f9b7 | Michael Hanselmann |
|
322 | 65a6f9b7 | Michael Hanselmann | """
|
323 | 65a6f9b7 | Michael Hanselmann | FILE_DRIVER_MAP = { |
324 | 65a6f9b7 | Michael Hanselmann | constants.FD_LOOP: "file",
|
325 | 65a6f9b7 | Michael Hanselmann | constants.FD_BLKTAP: "tap:aio",
|
326 | 65a6f9b7 | Michael Hanselmann | } |
327 | 65a6f9b7 | Michael Hanselmann | disk_data = [] |
328 | 2864f2d9 | Iustin Pop | if len(block_devices) > 24: |
329 | 2864f2d9 | Iustin Pop | # 'z' - 'a' = 24
|
330 | 2864f2d9 | Iustin Pop | raise errors.HypervisorError("Too many disks") |
331 | 2864f2d9 | Iustin Pop | # FIXME: instead of this hardcoding here, each of PVM/HVM should
|
332 | 2864f2d9 | Iustin Pop | # directly export their info (currently HVM will just sed this info)
|
333 | 2864f2d9 | Iustin Pop | namespace = ["sd" + chr(i + ord('a')) for i in range(24)] |
334 | 069cfbf1 | Iustin Pop | for sd_name, (cfdev, dev_path) in zip(namespace, block_devices): |
335 | d34b16d7 | Iustin Pop | if cfdev.mode == constants.DISK_RDWR:
|
336 | d34b16d7 | Iustin Pop | mode = "w"
|
337 | d34b16d7 | Iustin Pop | else:
|
338 | d34b16d7 | Iustin Pop | mode = "r"
|
339 | 65a6f9b7 | Michael Hanselmann | if cfdev.dev_type == constants.LD_FILE:
|
340 | d34b16d7 | Iustin Pop | line = "'%s:%s,%s,%s'" % (FILE_DRIVER_MAP[cfdev.physical_id[0]], |
341 | d34b16d7 | Iustin Pop | dev_path, sd_name, mode) |
342 | 65a6f9b7 | Michael Hanselmann | else:
|
343 | d34b16d7 | Iustin Pop | line = "'phy:%s,%s,%s'" % (dev_path, sd_name, mode)
|
344 | 65a6f9b7 | Michael Hanselmann | disk_data.append(line) |
345 | 65a6f9b7 | Michael Hanselmann | |
346 | 65a6f9b7 | Michael Hanselmann | return disk_data
|
347 | 65a6f9b7 | Michael Hanselmann | |
348 | 4390ccff | Guido Trotter | def MigrationInfo(self, instance): |
349 | 4390ccff | Guido Trotter | """Get instance information to perform a migration.
|
350 | 4390ccff | Guido Trotter |
|
351 | 4390ccff | Guido Trotter | @type instance: L{objects.Instance}
|
352 | 4390ccff | Guido Trotter | @param instance: instance to be migrated
|
353 | 4390ccff | Guido Trotter | @rtype: string
|
354 | 4390ccff | Guido Trotter | @return: content of the xen config file
|
355 | 4390ccff | Guido Trotter |
|
356 | 4390ccff | Guido Trotter | """
|
357 | 4390ccff | Guido Trotter | return self._ReadConfigFile(instance.name) |
358 | 4390ccff | Guido Trotter | |
359 | 4390ccff | Guido Trotter | def AcceptInstance(self, instance, info, target): |
360 | 4390ccff | Guido Trotter | """Prepare to accept an instance.
|
361 | 4390ccff | Guido Trotter |
|
362 | 4390ccff | Guido Trotter | @type instance: L{objects.Instance}
|
363 | 4390ccff | Guido Trotter | @param instance: instance to be accepted
|
364 | 4390ccff | Guido Trotter | @type info: string
|
365 | 4390ccff | Guido Trotter | @param info: content of the xen config file on the source node
|
366 | 4390ccff | Guido Trotter | @type target: string
|
367 | 4390ccff | Guido Trotter | @param target: target host (usually ip), on this node
|
368 | 4390ccff | Guido Trotter |
|
369 | 4390ccff | Guido Trotter | """
|
370 | 4390ccff | Guido Trotter | pass
|
371 | 4390ccff | Guido Trotter | |
372 | 4390ccff | Guido Trotter | def FinalizeMigration(self, instance, info, success): |
373 | 4390ccff | Guido Trotter | """Finalize an instance migration.
|
374 | 4390ccff | Guido Trotter |
|
375 | 4390ccff | Guido Trotter | After a successful migration we write the xen config file.
|
376 | 4390ccff | Guido Trotter | We do nothing on a failure, as we did not change anything at accept time.
|
377 | 4390ccff | Guido Trotter |
|
378 | 4390ccff | Guido Trotter | @type instance: L{objects.Instance}
|
379 | 4390ccff | Guido Trotter | @param instance: instance whose migration is being aborted
|
380 | 4390ccff | Guido Trotter | @type info: string
|
381 | 4390ccff | Guido Trotter | @param info: content of the xen config file on the source node
|
382 | 4390ccff | Guido Trotter | @type success: boolean
|
383 | 4390ccff | Guido Trotter | @param success: whether the migration was a success or a failure
|
384 | 4390ccff | Guido Trotter |
|
385 | 4390ccff | Guido Trotter | """
|
386 | 4390ccff | Guido Trotter | if success:
|
387 | 4390ccff | Guido Trotter | self._WriteConfigFileStatic(instance.name, info)
|
388 | 4390ccff | Guido Trotter | |
389 | 6e7275c0 | Iustin Pop | def MigrateInstance(self, instance, target, live): |
390 | 6e7275c0 | Iustin Pop | """Migrate an instance to a target node.
|
391 | 6e7275c0 | Iustin Pop |
|
392 | 6e7275c0 | Iustin Pop | The migration will not be attempted if the instance is not
|
393 | 6e7275c0 | Iustin Pop | currently running.
|
394 | 6e7275c0 | Iustin Pop |
|
395 | 58d38b02 | Iustin Pop | @type instance: L{objects.Instance}
|
396 | 58d38b02 | Iustin Pop | @param instance: the instance to be migrated
|
397 | fdf7f055 | Guido Trotter | @type target: string
|
398 | fdf7f055 | Guido Trotter | @param target: ip address of the target node
|
399 | fdf7f055 | Guido Trotter | @type live: boolean
|
400 | fdf7f055 | Guido Trotter | @param live: perform a live migration
|
401 | fdf7f055 | Guido Trotter |
|
402 | 6e7275c0 | Iustin Pop | """
|
403 | 58d38b02 | Iustin Pop | if self.GetInstanceInfo(instance.name) is None: |
404 | 6e7275c0 | Iustin Pop | raise errors.HypervisorError("Instance not running, cannot migrate") |
405 | 6e7275c0 | Iustin Pop | args = ["xm", "migrate"] |
406 | 6e7275c0 | Iustin Pop | if live:
|
407 | 6e7275c0 | Iustin Pop | args.append("-l")
|
408 | 58d38b02 | Iustin Pop | args.extend([instance.name, target]) |
409 | 6e7275c0 | Iustin Pop | result = utils.RunCmd(args) |
410 | 6e7275c0 | Iustin Pop | if result.failed:
|
411 | 6e7275c0 | Iustin Pop | raise errors.HypervisorError("Failed to migrate instance %s: %s" % |
412 | 58d38b02 | Iustin Pop | (instance.name, result.output)) |
413 | 53c776b5 | Iustin Pop | # remove old xen file after migration succeeded
|
414 | 53c776b5 | Iustin Pop | try:
|
415 | 58d38b02 | Iustin Pop | self._RemoveConfigFile(instance.name)
|
416 | c979d253 | Iustin Pop | except EnvironmentError: |
417 | c979d253 | Iustin Pop | logging.exception("Failure while removing instance config file")
|
418 | 6e7275c0 | Iustin Pop | |
419 | f5118ade | Iustin Pop | @classmethod
|
420 | f5118ade | Iustin Pop | def PowercycleNode(cls): |
421 | f5118ade | Iustin Pop | """Xen-specific powercycle.
|
422 | f5118ade | Iustin Pop |
|
423 | f5118ade | Iustin Pop | This first does a Linux reboot (which triggers automatically a Xen
|
424 | f5118ade | Iustin Pop | reboot), and if that fails it tries to do a Xen reboot. The reason
|
425 | f5118ade | Iustin Pop | we don't try a Xen reboot first is that the xen reboot launches an
|
426 | f5118ade | Iustin Pop | external command which connects to the Xen hypervisor, and that
|
427 | f5118ade | Iustin Pop | won't work in case the root filesystem is broken and/or the xend
|
428 | f5118ade | Iustin Pop | daemon is not working.
|
429 | f5118ade | Iustin Pop |
|
430 | f5118ade | Iustin Pop | """
|
431 | f5118ade | Iustin Pop | try:
|
432 | f5118ade | Iustin Pop | cls.LinuxPowercycle() |
433 | f5118ade | Iustin Pop | finally:
|
434 | f5118ade | Iustin Pop | utils.RunCmd(["xm", "debug", "R"]) |
435 | f5118ade | Iustin Pop | |
436 | 65a6f9b7 | Michael Hanselmann | |
437 | 65a6f9b7 | Michael Hanselmann | class XenPvmHypervisor(XenHypervisor): |
438 | 65a6f9b7 | Michael Hanselmann | """Xen PVM hypervisor interface"""
|
439 | 65a6f9b7 | Michael Hanselmann | |
440 | 205ab586 | Iustin Pop | PARAMETERS = { |
441 | 2f2dbb4b | Jun Futagawa | constants.HV_USE_BOOTLOADER: hv_base.NO_CHECK, |
442 | 2f2dbb4b | Jun Futagawa | constants.HV_BOOTLOADER_PATH: hv_base.OPT_FILE_CHECK, |
443 | 2f2dbb4b | Jun Futagawa | constants.HV_BOOTLOADER_ARGS: hv_base.NO_CHECK, |
444 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.REQ_FILE_CHECK, |
445 | 205ab586 | Iustin Pop | constants.HV_INITRD_PATH: hv_base.OPT_FILE_CHECK, |
446 | 205ab586 | Iustin Pop | constants.HV_ROOT_PATH: hv_base.REQUIRED_CHECK, |
447 | 205ab586 | Iustin Pop | constants.HV_KERNEL_ARGS: hv_base.NO_CHECK, |
448 | 78411c60 | Iustin Pop | constants.HV_MIGRATION_PORT: hv_base.NET_PORT_CHECK, |
449 | 205ab586 | Iustin Pop | } |
450 | f48148c3 | Iustin Pop | |
451 | 65a6f9b7 | Michael Hanselmann | @classmethod
|
452 | 07813a9e | Iustin Pop | def _WriteConfigFile(cls, instance, block_devices): |
453 | 65a6f9b7 | Michael Hanselmann | """Write the Xen config file for the instance.
|
454 | 65a6f9b7 | Michael Hanselmann |
|
455 | 65a6f9b7 | Michael Hanselmann | """
|
456 | a985b417 | Iustin Pop | hvp = instance.hvparams |
457 | 65a6f9b7 | Michael Hanselmann | config = StringIO() |
458 | 65a6f9b7 | Michael Hanselmann | config.write("# this is autogenerated by Ganeti, please do not edit\n#\n")
|
459 | 65a6f9b7 | Michael Hanselmann | |
460 | 2f2dbb4b | Jun Futagawa | # if bootloader is True, use bootloader instead of kernel and ramdisk
|
461 | 2f2dbb4b | Jun Futagawa | # parameters.
|
462 | 2f2dbb4b | Jun Futagawa | if hvp[constants.HV_USE_BOOTLOADER]:
|
463 | 2f2dbb4b | Jun Futagawa | # bootloader handling
|
464 | 2f2dbb4b | Jun Futagawa | bootloader_path = hvp[constants.HV_BOOTLOADER_PATH] |
465 | 2f2dbb4b | Jun Futagawa | if bootloader_path:
|
466 | 2f2dbb4b | Jun Futagawa | config.write("bootloader = '%s'\n" % bootloader_path)
|
467 | 2f2dbb4b | Jun Futagawa | else:
|
468 | 2f2dbb4b | Jun Futagawa | raise errors.HypervisorError("Bootloader enabled, but missing" |
469 | 2f2dbb4b | Jun Futagawa | " bootloader path")
|
470 | 65a6f9b7 | Michael Hanselmann | |
471 | 2f2dbb4b | Jun Futagawa | bootloader_args = hvp[constants.HV_BOOTLOADER_ARGS] |
472 | 2f2dbb4b | Jun Futagawa | if bootloader_args:
|
473 | 2f2dbb4b | Jun Futagawa | config.write("bootargs = '%s'\n" % bootloader_args)
|
474 | 2f2dbb4b | Jun Futagawa | else:
|
475 | 2f2dbb4b | Jun Futagawa | # kernel handling
|
476 | 2f2dbb4b | Jun Futagawa | kpath = hvp[constants.HV_KERNEL_PATH] |
477 | 2f2dbb4b | Jun Futagawa | config.write("kernel = '%s'\n" % kpath)
|
478 | 2f2dbb4b | Jun Futagawa | |
479 | 2f2dbb4b | Jun Futagawa | # initrd handling
|
480 | 2f2dbb4b | Jun Futagawa | initrd_path = hvp[constants.HV_INITRD_PATH] |
481 | 2f2dbb4b | Jun Futagawa | if initrd_path:
|
482 | 2f2dbb4b | Jun Futagawa | config.write("ramdisk = '%s'\n" % initrd_path)
|
483 | 65a6f9b7 | Michael Hanselmann | |
484 | 65a6f9b7 | Michael Hanselmann | # rest of the settings
|
485 | 8b3fd458 | Iustin Pop | config.write("memory = %d\n" % instance.beparams[constants.BE_MEMORY])
|
486 | 8b3fd458 | Iustin Pop | config.write("vcpus = %d\n" % instance.beparams[constants.BE_VCPUS])
|
487 | 65a6f9b7 | Michael Hanselmann | config.write("name = '%s'\n" % instance.name)
|
488 | 65a6f9b7 | Michael Hanselmann | |
489 | 65a6f9b7 | Michael Hanselmann | vif_data = [] |
490 | 65a6f9b7 | Michael Hanselmann | for nic in instance.nics: |
491 | 503b97a9 | Guido Trotter | nic_str = "mac=%s" % (nic.mac)
|
492 | 65a6f9b7 | Michael Hanselmann | ip = getattr(nic, "ip", None) |
493 | 65a6f9b7 | Michael Hanselmann | if ip is not None: |
494 | 65a6f9b7 | Michael Hanselmann | nic_str += ", ip=%s" % ip
|
495 | 65a6f9b7 | Michael Hanselmann | vif_data.append("'%s'" % nic_str)
|
496 | 503b97a9 | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
497 | 503b97a9 | Guido Trotter | nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK]
|
498 | 65a6f9b7 | Michael Hanselmann | |
499 | 65a6f9b7 | Michael Hanselmann | config.write("vif = [%s]\n" % ",".join(vif_data)) |
500 | 65a6f9b7 | Michael Hanselmann | config.write("disk = [%s]\n" % ",".join( |
501 | 65a6f9b7 | Michael Hanselmann | cls._GetConfigFileDiskData(instance.disk_template, |
502 | 65a6f9b7 | Michael Hanselmann | block_devices))) |
503 | 074ca009 | Guido Trotter | |
504 | 07813a9e | Iustin Pop | config.write("root = '%s'\n" % hvp[constants.HV_ROOT_PATH])
|
505 | 65a6f9b7 | Michael Hanselmann | config.write("on_poweroff = 'destroy'\n")
|
506 | 65a6f9b7 | Michael Hanselmann | config.write("on_reboot = 'restart'\n")
|
507 | 65a6f9b7 | Michael Hanselmann | config.write("on_crash = 'restart'\n")
|
508 | 07813a9e | Iustin Pop | config.write("extra = '%s'\n" % hvp[constants.HV_KERNEL_ARGS])
|
509 | 65a6f9b7 | Michael Hanselmann | # just in case it exists
|
510 | 65a6f9b7 | Michael Hanselmann | utils.RemoveFile("/etc/xen/auto/%s" % instance.name)
|
511 | 65a6f9b7 | Michael Hanselmann | try:
|
512 | a985b417 | Iustin Pop | utils.WriteFile("/etc/xen/%s" % instance.name, data=config.getvalue())
|
513 | 73cd67f4 | Guido Trotter | except EnvironmentError, err: |
514 | 73cd67f4 | Guido Trotter | raise errors.HypervisorError("Cannot write Xen instance confile" |
515 | 73cd67f4 | Guido Trotter | " file /etc/xen/%s: %s" %
|
516 | 73cd67f4 | Guido Trotter | (instance.name, err)) |
517 | 73cd67f4 | Guido Trotter | |
518 | 65a6f9b7 | Michael Hanselmann | return True |
519 | 65a6f9b7 | Michael Hanselmann | |
520 | 65a6f9b7 | Michael Hanselmann | |
521 | 65a6f9b7 | Michael Hanselmann | class XenHvmHypervisor(XenHypervisor): |
522 | 65a6f9b7 | Michael Hanselmann | """Xen HVM hypervisor interface"""
|
523 | 65a6f9b7 | Michael Hanselmann | |
524 | 69b99987 | Michael Hanselmann | ANCILLARY_FILES = XenHypervisor.ANCILLARY_FILES + [ |
525 | 69b99987 | Michael Hanselmann | constants.VNC_PASSWORD_FILE, |
526 | 69b99987 | Michael Hanselmann | ] |
527 | 3680f662 | Guido Trotter | |
528 | 205ab586 | Iustin Pop | PARAMETERS = { |
529 | 205ab586 | Iustin Pop | constants.HV_ACPI: hv_base.NO_CHECK, |
530 | 016d04b3 | Michael Hanselmann | constants.HV_BOOT_ORDER: (True, ) +
|
531 | 016d04b3 | Michael Hanselmann | (lambda x: x and len(x.strip("acdn")) == 0, |
532 | 016d04b3 | Michael Hanselmann | "Invalid boot order specified, must be one or more of [acdn]",
|
533 | 016d04b3 | Michael Hanselmann | None, None), |
534 | 205ab586 | Iustin Pop | constants.HV_CDROM_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
535 | 016d04b3 | Michael Hanselmann | constants.HV_DISK_TYPE: |
536 | 016d04b3 | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_HVM_VALID_DISK_TYPES),
|
537 | 016d04b3 | Michael Hanselmann | constants.HV_NIC_TYPE: |
538 | 016d04b3 | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_HVM_VALID_NIC_TYPES),
|
539 | 205ab586 | Iustin Pop | constants.HV_PAE: hv_base.NO_CHECK, |
540 | 016d04b3 | Michael Hanselmann | constants.HV_VNC_BIND_ADDRESS: |
541 | 016d04b3 | Michael Hanselmann | (False, utils.IsValidIP,
|
542 | 016d04b3 | Michael Hanselmann | "VNC bind address is not a valid IP address", None, None), |
543 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.REQ_FILE_CHECK, |
544 | 205ab586 | Iustin Pop | constants.HV_DEVICE_MODEL: hv_base.REQ_FILE_CHECK, |
545 | 6e6bb8d5 | Guido Trotter | constants.HV_VNC_PASSWORD_FILE: hv_base.REQ_FILE_CHECK, |
546 | 78411c60 | Iustin Pop | constants.HV_MIGRATION_PORT: hv_base.NET_PORT_CHECK, |
547 | 205ab586 | Iustin Pop | } |
548 | 09ea8710 | Iustin Pop | |
549 | 65a6f9b7 | Michael Hanselmann | @classmethod
|
550 | 07813a9e | Iustin Pop | def _WriteConfigFile(cls, instance, block_devices): |
551 | 65a6f9b7 | Michael Hanselmann | """Create a Xen 3.1 HVM config file.
|
552 | 65a6f9b7 | Michael Hanselmann |
|
553 | 65a6f9b7 | Michael Hanselmann | """
|
554 | a985b417 | Iustin Pop | hvp = instance.hvparams |
555 | a985b417 | Iustin Pop | |
556 | 65a6f9b7 | Michael Hanselmann | config = StringIO() |
557 | 65a6f9b7 | Michael Hanselmann | config.write("# this is autogenerated by Ganeti, please do not edit\n#\n")
|
558 | e2ee1cea | Iustin Pop | |
559 | e2ee1cea | Iustin Pop | # kernel handling
|
560 | e2ee1cea | Iustin Pop | kpath = hvp[constants.HV_KERNEL_PATH] |
561 | e2ee1cea | Iustin Pop | config.write("kernel = '%s'\n" % kpath)
|
562 | e2ee1cea | Iustin Pop | |
563 | 65a6f9b7 | Michael Hanselmann | config.write("builder = 'hvm'\n")
|
564 | 8b3fd458 | Iustin Pop | config.write("memory = %d\n" % instance.beparams[constants.BE_MEMORY])
|
565 | 8b3fd458 | Iustin Pop | config.write("vcpus = %d\n" % instance.beparams[constants.BE_VCPUS])
|
566 | 65a6f9b7 | Michael Hanselmann | config.write("name = '%s'\n" % instance.name)
|
567 | 09ea8710 | Iustin Pop | if hvp[constants.HV_PAE]:
|
568 | a21dda8b | Iustin Pop | config.write("pae = 1\n")
|
569 | a21dda8b | Iustin Pop | else:
|
570 | a21dda8b | Iustin Pop | config.write("pae = 0\n")
|
571 | 09ea8710 | Iustin Pop | if hvp[constants.HV_ACPI]:
|
572 | a21dda8b | Iustin Pop | config.write("acpi = 1\n")
|
573 | a21dda8b | Iustin Pop | else:
|
574 | a21dda8b | Iustin Pop | config.write("acpi = 0\n")
|
575 | 65a6f9b7 | Michael Hanselmann | config.write("apic = 1\n")
|
576 | 09ea8710 | Iustin Pop | config.write("device_model = '%s'\n" % hvp[constants.HV_DEVICE_MODEL])
|
577 | a985b417 | Iustin Pop | config.write("boot = '%s'\n" % hvp[constants.HV_BOOT_ORDER])
|
578 | 65a6f9b7 | Michael Hanselmann | config.write("sdl = 0\n")
|
579 | 97efde45 | Guido Trotter | config.write("usb = 1\n")
|
580 | 97efde45 | Guido Trotter | config.write("usbdevice = 'tablet'\n")
|
581 | 65a6f9b7 | Michael Hanselmann | config.write("vnc = 1\n")
|
582 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_BIND_ADDRESS] is None: |
583 | d0c11cf7 | Alexander Schreiber | config.write("vnclisten = '%s'\n" % constants.VNC_DEFAULT_BIND_ADDRESS)
|
584 | d0c11cf7 | Alexander Schreiber | else:
|
585 | 6b405598 | Guido Trotter | config.write("vnclisten = '%s'\n" % hvp[constants.HV_VNC_BIND_ADDRESS])
|
586 | 65a6f9b7 | Michael Hanselmann | |
587 | 377d74c9 | Guido Trotter | if instance.network_port > constants.VNC_BASE_PORT:
|
588 | 377d74c9 | Guido Trotter | display = instance.network_port - constants.VNC_BASE_PORT |
589 | 65a6f9b7 | Michael Hanselmann | config.write("vncdisplay = %s\n" % display)
|
590 | 65a6f9b7 | Michael Hanselmann | config.write("vncunused = 0\n")
|
591 | 65a6f9b7 | Michael Hanselmann | else:
|
592 | 65a6f9b7 | Michael Hanselmann | config.write("# vncdisplay = 1\n")
|
593 | 65a6f9b7 | Michael Hanselmann | config.write("vncunused = 1\n")
|
594 | 65a6f9b7 | Michael Hanselmann | |
595 | 6e6bb8d5 | Guido Trotter | vnc_pwd_file = hvp[constants.HV_VNC_PASSWORD_FILE] |
596 | 65a6f9b7 | Michael Hanselmann | try:
|
597 | 6e6bb8d5 | Guido Trotter | password = utils.ReadFile(vnc_pwd_file) |
598 | 78f66a17 | Guido Trotter | except EnvironmentError, err: |
599 | 78f66a17 | Guido Trotter | raise errors.HypervisorError("Failed to open VNC password file %s: %s" % |
600 | 6e6bb8d5 | Guido Trotter | (vnc_pwd_file, err)) |
601 | 65a6f9b7 | Michael Hanselmann | |
602 | 65a6f9b7 | Michael Hanselmann | config.write("vncpasswd = '%s'\n" % password.rstrip())
|
603 | 65a6f9b7 | Michael Hanselmann | |
604 | 65a6f9b7 | Michael Hanselmann | config.write("serial = 'pty'\n")
|
605 | 65a6f9b7 | Michael Hanselmann | config.write("localtime = 1\n")
|
606 | 65a6f9b7 | Michael Hanselmann | |
607 | 65a6f9b7 | Michael Hanselmann | vif_data = [] |
608 | a985b417 | Iustin Pop | nic_type = hvp[constants.HV_NIC_TYPE] |
609 | f48148c3 | Iustin Pop | if nic_type is None: |
610 | f48148c3 | Iustin Pop | # ensure old instances don't change
|
611 | f48148c3 | Iustin Pop | nic_type_str = ", type=ioemu"
|
612 | d08f6067 | Guido Trotter | elif nic_type == constants.HT_NIC_PARAVIRTUAL:
|
613 | f48148c3 | Iustin Pop | nic_type_str = ", type=paravirtualized"
|
614 | f48148c3 | Iustin Pop | else:
|
615 | f48148c3 | Iustin Pop | nic_type_str = ", model=%s, type=ioemu" % nic_type
|
616 | 65a6f9b7 | Michael Hanselmann | for nic in instance.nics: |
617 | 503b97a9 | Guido Trotter | nic_str = "mac=%s%s" % (nic.mac, nic_type_str)
|
618 | 65a6f9b7 | Michael Hanselmann | ip = getattr(nic, "ip", None) |
619 | 65a6f9b7 | Michael Hanselmann | if ip is not None: |
620 | 65a6f9b7 | Michael Hanselmann | nic_str += ", ip=%s" % ip
|
621 | 65a6f9b7 | Michael Hanselmann | vif_data.append("'%s'" % nic_str)
|
622 | 503b97a9 | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
623 | 503b97a9 | Guido Trotter | nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK]
|
624 | 65a6f9b7 | Michael Hanselmann | |
625 | 65a6f9b7 | Michael Hanselmann | config.write("vif = [%s]\n" % ",".join(vif_data)) |
626 | a21dda8b | Iustin Pop | disk_data = cls._GetConfigFileDiskData(instance.disk_template, |
627 | a21dda8b | Iustin Pop | block_devices) |
628 | a985b417 | Iustin Pop | disk_type = hvp[constants.HV_DISK_TYPE] |
629 | d08f6067 | Guido Trotter | if disk_type in (None, constants.HT_DISK_IOEMU): |
630 | 5397e0b7 | Alexander Schreiber | replacement = ",ioemu:hd"
|
631 | 5397e0b7 | Alexander Schreiber | else:
|
632 | 5397e0b7 | Alexander Schreiber | replacement = ",hd"
|
633 | 5397e0b7 | Alexander Schreiber | disk_data = [line.replace(",sd", replacement) for line in disk_data] |
634 | a985b417 | Iustin Pop | iso_path = hvp[constants.HV_CDROM_IMAGE_PATH] |
635 | f48148c3 | Iustin Pop | if iso_path:
|
636 | f48148c3 | Iustin Pop | iso = "'file:%s,hdc:cdrom,r'" % iso_path
|
637 | a21dda8b | Iustin Pop | disk_data.append(iso) |
638 | a21dda8b | Iustin Pop | |
639 | a21dda8b | Iustin Pop | config.write("disk = [%s]\n" % (",".join(disk_data))) |
640 | a21dda8b | Iustin Pop | |
641 | 65a6f9b7 | Michael Hanselmann | config.write("on_poweroff = 'destroy'\n")
|
642 | 65a6f9b7 | Michael Hanselmann | config.write("on_reboot = 'restart'\n")
|
643 | 65a6f9b7 | Michael Hanselmann | config.write("on_crash = 'restart'\n")
|
644 | 65a6f9b7 | Michael Hanselmann | # just in case it exists
|
645 | 65a6f9b7 | Michael Hanselmann | utils.RemoveFile("/etc/xen/auto/%s" % instance.name)
|
646 | 65a6f9b7 | Michael Hanselmann | try:
|
647 | 73cd67f4 | Guido Trotter | utils.WriteFile("/etc/xen/%s" % instance.name,
|
648 | 73cd67f4 | Guido Trotter | data=config.getvalue()) |
649 | 73cd67f4 | Guido Trotter | except EnvironmentError, err: |
650 | 73cd67f4 | Guido Trotter | raise errors.HypervisorError("Cannot write Xen instance confile" |
651 | 73cd67f4 | Guido Trotter | " file /etc/xen/%s: %s" %
|
652 | 73cd67f4 | Guido Trotter | (instance.name, err)) |
653 | 73cd67f4 | Guido Trotter | |
654 | 65a6f9b7 | Michael Hanselmann | return True |