root / lib / hypervisor / hv_xen.py @ f3aebf6f
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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 | 1a63f285 | Iustin Pop | # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 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 | b48909c8 | Iustin Pop | import logging |
27 | 397b7844 | Dimitris Aragiorgis | import errno |
28 | d0bb3f24 | Michael Hanselmann | import string # pylint: disable=W0402 |
29 | 397b7844 | Dimitris Aragiorgis | import shutil |
30 | 65a6f9b7 | Michael Hanselmann | from cStringIO import StringIO |
31 | 65a6f9b7 | Michael Hanselmann | |
32 | 65a6f9b7 | Michael Hanselmann | from ganeti import constants |
33 | 65a6f9b7 | Michael Hanselmann | from ganeti import errors |
34 | 65a6f9b7 | Michael Hanselmann | from ganeti import utils |
35 | a2d32034 | Michael Hanselmann | from ganeti.hypervisor import hv_base |
36 | a744b676 | Manuel Franceschini | from ganeti import netutils |
37 | 55cc0a44 | Michael Hanselmann | from ganeti import objects |
38 | 9d9bded1 | Michael Hanselmann | from ganeti import pathutils |
39 | 65a6f9b7 | Michael Hanselmann | |
40 | 65a6f9b7 | Michael Hanselmann | |
41 | a8e8c0c6 | Michael Hanselmann | XEND_CONFIG_FILE = utils.PathJoin(pathutils.XEN_CONFIG_DIR, "xend-config.sxp")
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42 | a8e8c0c6 | Michael Hanselmann | XL_CONFIG_FILE = utils.PathJoin(pathutils.XEN_CONFIG_DIR, "xen/xl.conf")
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43 | a8e8c0c6 | Michael Hanselmann | VIF_BRIDGE_SCRIPT = utils.PathJoin(pathutils.XEN_CONFIG_DIR, |
44 | a8e8c0c6 | Michael Hanselmann | "scripts/vif-bridge")
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45 | 18bf85b1 | Michael Hanselmann | _DOM0_NAME = "Domain-0"
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46 | d0bb3f24 | Michael Hanselmann | _DISK_LETTERS = string.ascii_lowercase |
47 | d0bb3f24 | Michael Hanselmann | |
48 | d0bb3f24 | Michael Hanselmann | _FILE_DRIVER_MAP = { |
49 | d0bb3f24 | Michael Hanselmann | constants.FD_LOOP: "file",
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50 | d0bb3f24 | Michael Hanselmann | constants.FD_BLKTAP: "tap:aio",
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51 | 7bc2c097 | Michele Tartara | constants.FD_BLKTAP2: "tap2:tapdisk:aio",
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52 | d0bb3f24 | Michael Hanselmann | } |
53 | 22d568c2 | Guido Trotter | |
54 | 22d568c2 | Guido Trotter | |
55 | 347fa0f1 | Michael Hanselmann | def _CreateConfigCpus(cpu_mask): |
56 | 347fa0f1 | Michael Hanselmann | """Create a CPU config string for Xen's config file.
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57 | 347fa0f1 | Michael Hanselmann |
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58 | 347fa0f1 | Michael Hanselmann | """
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59 | 347fa0f1 | Michael Hanselmann | # Convert the string CPU mask to a list of list of int's
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60 | 347fa0f1 | Michael Hanselmann | cpu_list = utils.ParseMultiCpuMask(cpu_mask) |
61 | 347fa0f1 | Michael Hanselmann | |
62 | 347fa0f1 | Michael Hanselmann | if len(cpu_list) == 1: |
63 | 347fa0f1 | Michael Hanselmann | all_cpu_mapping = cpu_list[0]
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64 | 347fa0f1 | Michael Hanselmann | if all_cpu_mapping == constants.CPU_PINNING_OFF:
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65 | 347fa0f1 | Michael Hanselmann | # If CPU pinning has 1 entry that's "all", then remove the
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66 | 347fa0f1 | Michael Hanselmann | # parameter from the config file
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67 | 347fa0f1 | Michael Hanselmann | return None |
68 | 347fa0f1 | Michael Hanselmann | else:
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69 | 347fa0f1 | Michael Hanselmann | # If CPU pinning has one non-all entry, mapping all vCPUS (the entire
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70 | 347fa0f1 | Michael Hanselmann | # VM) to one physical CPU, using format 'cpu = "C"'
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71 | 347fa0f1 | Michael Hanselmann | return "cpu = \"%s\"" % ",".join(map(str, all_cpu_mapping)) |
72 | 347fa0f1 | Michael Hanselmann | else:
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73 | 347fa0f1 | Michael Hanselmann | |
74 | 347fa0f1 | Michael Hanselmann | def _GetCPUMap(vcpu): |
75 | 347fa0f1 | Michael Hanselmann | if vcpu[0] == constants.CPU_PINNING_ALL_VAL: |
76 | 347fa0f1 | Michael Hanselmann | cpu_map = constants.CPU_PINNING_ALL_XEN |
77 | 347fa0f1 | Michael Hanselmann | else:
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78 | 347fa0f1 | Michael Hanselmann | cpu_map = ",".join(map(str, vcpu)) |
79 | 347fa0f1 | Michael Hanselmann | return "\"%s\"" % cpu_map |
80 | 347fa0f1 | Michael Hanselmann | |
81 | 347fa0f1 | Michael Hanselmann | # build the result string in format 'cpus = [ "c", "c", "c" ]',
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82 | 347fa0f1 | Michael Hanselmann | # where each c is a physical CPU number, a range, a list, or any
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83 | 347fa0f1 | Michael Hanselmann | # combination
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84 | 347fa0f1 | Michael Hanselmann | return "cpus = [ %s ]" % ", ".join(map(_GetCPUMap, cpu_list)) |
85 | 347fa0f1 | Michael Hanselmann | |
86 | 347fa0f1 | Michael Hanselmann | |
87 | ff19ac20 | Helga Velroyen | def _RunInstanceList(fn, instance_list_errors): |
88 | 9d22cc90 | Jose A. Lopes | """Helper function for L{_GetAllInstanceList} to retrieve the list
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89 | 9d22cc90 | Jose A. Lopes | of instances from xen.
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90 | b255379d | Michael Hanselmann |
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91 | b255379d | Michael Hanselmann | @type fn: callable
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92 | ff19ac20 | Helga Velroyen | @param fn: Function to query xen for the list of instances
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93 | ff19ac20 | Helga Velroyen | @type instance_list_errors: list
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94 | ff19ac20 | Helga Velroyen | @param instance_list_errors: Error list
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95 | b255379d | Michael Hanselmann | @rtype: list
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96 | b255379d | Michael Hanselmann |
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97 | b255379d | Michael Hanselmann | """
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98 | b255379d | Michael Hanselmann | result = fn() |
99 | b255379d | Michael Hanselmann | if result.failed:
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100 | ff19ac20 | Helga Velroyen | logging.error("Retrieving the instance list from xen failed (%s): %s",
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101 | ff19ac20 | Helga Velroyen | result.fail_reason, result.output) |
102 | ff19ac20 | Helga Velroyen | instance_list_errors.append(result) |
103 | b255379d | Michael Hanselmann | raise utils.RetryAgain()
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104 | b255379d | Michael Hanselmann | |
105 | b255379d | Michael Hanselmann | # skip over the heading
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106 | b255379d | Michael Hanselmann | return result.stdout.splitlines()
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107 | b255379d | Michael Hanselmann | |
108 | b255379d | Michael Hanselmann | |
109 | 2609da63 | Helga Velroyen | def _ParseInstanceList(lines, include_node): |
110 | 2609da63 | Helga Velroyen | """Parses the output of listing instances by xen.
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111 | b255379d | Michael Hanselmann |
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112 | b255379d | Michael Hanselmann | @type lines: list
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113 | 2609da63 | Helga Velroyen | @param lines: Result of retrieving the instance list from xen
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114 | b255379d | Michael Hanselmann | @type include_node: boolean
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115 | b255379d | Michael Hanselmann | @param include_node: If True, return information for Dom0
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116 | b255379d | Michael Hanselmann | @return: list of tuple containing (name, id, memory, vcpus, state, time
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117 | b255379d | Michael Hanselmann | spent)
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118 | b255379d | Michael Hanselmann |
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119 | b255379d | Michael Hanselmann | """
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120 | b255379d | Michael Hanselmann | result = [] |
121 | b255379d | Michael Hanselmann | |
122 | b255379d | Michael Hanselmann | # Iterate through all lines while ignoring header
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123 | b255379d | Michael Hanselmann | for line in lines[1:]: |
124 | b255379d | Michael Hanselmann | # The format of lines is:
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125 | b255379d | Michael Hanselmann | # Name ID Mem(MiB) VCPUs State Time(s)
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126 | b255379d | Michael Hanselmann | # Domain-0 0 3418 4 r----- 266.2
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127 | b255379d | Michael Hanselmann | data = line.split() |
128 | b255379d | Michael Hanselmann | if len(data) != 6: |
129 | 2609da63 | Helga Velroyen | raise errors.HypervisorError("Can't parse instance list," |
130 | b255379d | Michael Hanselmann | " line: %s" % line)
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131 | b255379d | Michael Hanselmann | try:
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132 | b255379d | Michael Hanselmann | data[1] = int(data[1]) |
133 | b255379d | Michael Hanselmann | data[2] = int(data[2]) |
134 | b255379d | Michael Hanselmann | data[3] = int(data[3]) |
135 | 9d22cc90 | Jose A. Lopes | data[4] = _XenToHypervisorInstanceState(data[4]) |
136 | b255379d | Michael Hanselmann | data[5] = float(data[5]) |
137 | b255379d | Michael Hanselmann | except (TypeError, ValueError), err: |
138 | 2609da63 | Helga Velroyen | raise errors.HypervisorError("Can't parse instance list," |
139 | b255379d | Michael Hanselmann | " line: %s, error: %s" % (line, err))
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140 | b255379d | Michael Hanselmann | |
141 | b255379d | Michael Hanselmann | # skip the Domain-0 (optional)
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142 | b255379d | Michael Hanselmann | if include_node or data[0] != _DOM0_NAME: |
143 | b255379d | Michael Hanselmann | result.append(data) |
144 | b255379d | Michael Hanselmann | |
145 | b255379d | Michael Hanselmann | return result
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146 | b255379d | Michael Hanselmann | |
147 | b255379d | Michael Hanselmann | |
148 | 9d22cc90 | Jose A. Lopes | def _GetAllInstanceList(fn, include_node, _timeout=5): |
149 | 9d22cc90 | Jose A. Lopes | """Return the list of instances including running and shutdown.
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150 | b255379d | Michael Hanselmann |
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151 | 2609da63 | Helga Velroyen | See L{_RunInstanceList} and L{_ParseInstanceList} for parameter details.
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152 | b255379d | Michael Hanselmann |
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153 | b255379d | Michael Hanselmann | """
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154 | ff19ac20 | Helga Velroyen | instance_list_errors = [] |
155 | b255379d | Michael Hanselmann | try:
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156 | ff19ac20 | Helga Velroyen | lines = utils.Retry(_RunInstanceList, (0.3, 1.5, 1.0), _timeout, |
157 | ff19ac20 | Helga Velroyen | args=(fn, instance_list_errors)) |
158 | b255379d | Michael Hanselmann | except utils.RetryTimeout:
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159 | ff19ac20 | Helga Velroyen | if instance_list_errors:
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160 | ff19ac20 | Helga Velroyen | instance_list_result = instance_list_errors.pop() |
161 | b255379d | Michael Hanselmann | |
162 | ff19ac20 | Helga Velroyen | errmsg = ("listing instances failed, timeout exceeded (%s): %s" %
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163 | ff19ac20 | Helga Velroyen | (instance_list_result.fail_reason, instance_list_result.output)) |
164 | b255379d | Michael Hanselmann | else:
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165 | ff19ac20 | Helga Velroyen | errmsg = "listing instances failed"
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166 | b255379d | Michael Hanselmann | |
167 | b255379d | Michael Hanselmann | raise errors.HypervisorError(errmsg)
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168 | b255379d | Michael Hanselmann | |
169 | 2609da63 | Helga Velroyen | return _ParseInstanceList(lines, include_node)
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170 | b255379d | Michael Hanselmann | |
171 | b255379d | Michael Hanselmann | |
172 | fd201010 | Jose A. Lopes | # Determine whether an instance is running
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173 | fd201010 | Jose A. Lopes | #
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174 | fd201010 | Jose A. Lopes | # An instance is running if it is in the following Xen states:
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175 | fd201010 | Jose A. Lopes | # running, blocked, or paused.
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176 | 9d22cc90 | Jose A. Lopes | def _IsInstanceRunning(instance_info): |
177 | 9d22cc90 | Jose A. Lopes | return instance_info == "r-----" \ |
178 | fd201010 | Jose A. Lopes | or instance_info == "-b----" \ |
179 | fd201010 | Jose A. Lopes | or instance_info == "--p---" |
180 | 9d22cc90 | Jose A. Lopes | |
181 | 9d22cc90 | Jose A. Lopes | |
182 | 9d22cc90 | Jose A. Lopes | def _IsInstanceShutdown(instance_info): |
183 | 9d22cc90 | Jose A. Lopes | return instance_info == "---s--" |
184 | 9d22cc90 | Jose A. Lopes | |
185 | 9d22cc90 | Jose A. Lopes | |
186 | 9d22cc90 | Jose A. Lopes | def _XenToHypervisorInstanceState(instance_info): |
187 | 9d22cc90 | Jose A. Lopes | if _IsInstanceRunning(instance_info):
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188 | 9d22cc90 | Jose A. Lopes | return hv_base.HvInstanceState.RUNNING
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189 | 9d22cc90 | Jose A. Lopes | elif _IsInstanceShutdown(instance_info):
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190 | 9d22cc90 | Jose A. Lopes | return hv_base.HvInstanceState.SHUTDOWN
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191 | 9d22cc90 | Jose A. Lopes | else:
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192 | 9d22cc90 | Jose A. Lopes | raise errors.HypervisorError("hv_xen._XenToHypervisorInstanceState:" |
193 | 9d22cc90 | Jose A. Lopes | " unhandled Xen instance state '%s'" %
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194 | 9d22cc90 | Jose A. Lopes | instance_info) |
195 | 9d22cc90 | Jose A. Lopes | |
196 | 9d22cc90 | Jose A. Lopes | |
197 | 9d22cc90 | Jose A. Lopes | def _GetRunningInstanceList(fn, include_node, _timeout=5): |
198 | 9d22cc90 | Jose A. Lopes | """Return the list of running instances.
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199 | 9d22cc90 | Jose A. Lopes |
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200 | 9d22cc90 | Jose A. Lopes | See L{_GetAllInstanceList} for parameter details.
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201 | 9d22cc90 | Jose A. Lopes |
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202 | 9d22cc90 | Jose A. Lopes | """
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203 | 9d22cc90 | Jose A. Lopes | instances = _GetAllInstanceList(fn, include_node, _timeout) |
204 | 9d22cc90 | Jose A. Lopes | return [i for i in instances if hv_base.HvInstanceState.IsRunning(i[4])] |
205 | 9d22cc90 | Jose A. Lopes | |
206 | 9d22cc90 | Jose A. Lopes | |
207 | 9d22cc90 | Jose A. Lopes | def _GetShutdownInstanceList(fn, include_node, _timeout=5): |
208 | 9d22cc90 | Jose A. Lopes | """Return the list of shutdown instances.
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209 | 9d22cc90 | Jose A. Lopes |
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210 | 9d22cc90 | Jose A. Lopes | See L{_GetAllInstanceList} for parameter details.
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211 | 9d22cc90 | Jose A. Lopes |
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212 | 9d22cc90 | Jose A. Lopes | """
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213 | 9d22cc90 | Jose A. Lopes | instances = _GetAllInstanceList(fn, include_node, _timeout) |
214 | 9d22cc90 | Jose A. Lopes | return [i for i in instances if hv_base.HvInstanceState.IsShutdown(i[4])] |
215 | 9d22cc90 | Jose A. Lopes | |
216 | 9d22cc90 | Jose A. Lopes | |
217 | 06c9a520 | Michael Hanselmann | def _ParseNodeInfo(info): |
218 | 06c9a520 | Michael Hanselmann | """Return information about the node.
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219 | 06c9a520 | Michael Hanselmann |
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220 | 06c9a520 | Michael Hanselmann | @return: a dict with the following keys (memory values in MiB):
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221 | 06c9a520 | Michael Hanselmann | - memory_total: the total memory size on the node
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222 | 06c9a520 | Michael Hanselmann | - memory_free: the available memory on the node for instances
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223 | 06c9a520 | Michael Hanselmann | - nr_cpus: total number of CPUs
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224 | 06c9a520 | Michael Hanselmann | - nr_nodes: in a NUMA system, the number of domains
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225 | 06c9a520 | Michael Hanselmann | - nr_sockets: the number of physical CPU sockets in the node
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226 | 06c9a520 | Michael Hanselmann | - hv_version: the hypervisor version in the form (major, minor)
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227 | 06c9a520 | Michael Hanselmann |
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228 | 06c9a520 | Michael Hanselmann | """
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229 | 06c9a520 | Michael Hanselmann | result = {} |
230 | 06c9a520 | Michael Hanselmann | cores_per_socket = threads_per_core = nr_cpus = None
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231 | 06c9a520 | Michael Hanselmann | xen_major, xen_minor = None, None |
232 | 06c9a520 | Michael Hanselmann | memory_total = None
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233 | 06c9a520 | Michael Hanselmann | memory_free = None
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234 | 06c9a520 | Michael Hanselmann | |
235 | 06c9a520 | Michael Hanselmann | for line in info.splitlines(): |
236 | 06c9a520 | Michael Hanselmann | fields = line.split(":", 1) |
237 | 06c9a520 | Michael Hanselmann | |
238 | 06c9a520 | Michael Hanselmann | if len(fields) < 2: |
239 | 06c9a520 | Michael Hanselmann | continue
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240 | 06c9a520 | Michael Hanselmann | |
241 | 06c9a520 | Michael Hanselmann | (key, val) = map(lambda s: s.strip(), fields) |
242 | 06c9a520 | Michael Hanselmann | |
243 | 06c9a520 | Michael Hanselmann | # Note: in Xen 3, memory has changed to total_memory
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244 | 06c9a520 | Michael Hanselmann | if key in ("memory", "total_memory"): |
245 | 06c9a520 | Michael Hanselmann | memory_total = int(val)
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246 | 06c9a520 | Michael Hanselmann | elif key == "free_memory": |
247 | 06c9a520 | Michael Hanselmann | memory_free = int(val)
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248 | 06c9a520 | Michael Hanselmann | elif key == "nr_cpus": |
249 | 06c9a520 | Michael Hanselmann | nr_cpus = result["cpu_total"] = int(val) |
250 | 06c9a520 | Michael Hanselmann | elif key == "nr_nodes": |
251 | 06c9a520 | Michael Hanselmann | result["cpu_nodes"] = int(val) |
252 | 06c9a520 | Michael Hanselmann | elif key == "cores_per_socket": |
253 | 06c9a520 | Michael Hanselmann | cores_per_socket = int(val)
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254 | 06c9a520 | Michael Hanselmann | elif key == "threads_per_core": |
255 | 06c9a520 | Michael Hanselmann | threads_per_core = int(val)
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256 | 06c9a520 | Michael Hanselmann | elif key == "xen_major": |
257 | 06c9a520 | Michael Hanselmann | xen_major = int(val)
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258 | 06c9a520 | Michael Hanselmann | elif key == "xen_minor": |
259 | 06c9a520 | Michael Hanselmann | xen_minor = int(val)
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260 | 06c9a520 | Michael Hanselmann | |
261 | 06c9a520 | Michael Hanselmann | if None not in [cores_per_socket, threads_per_core, nr_cpus]: |
262 | 06c9a520 | Michael Hanselmann | result["cpu_sockets"] = nr_cpus / (cores_per_socket * threads_per_core)
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263 | 06c9a520 | Michael Hanselmann | |
264 | 06c9a520 | Michael Hanselmann | if memory_free is not None: |
265 | 06c9a520 | Michael Hanselmann | result["memory_free"] = memory_free
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266 | 06c9a520 | Michael Hanselmann | |
267 | 06c9a520 | Michael Hanselmann | if memory_total is not None: |
268 | 06c9a520 | Michael Hanselmann | result["memory_total"] = memory_total
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269 | 06c9a520 | Michael Hanselmann | |
270 | 06c9a520 | Michael Hanselmann | if not (xen_major is None or xen_minor is None): |
271 | 06c9a520 | Michael Hanselmann | result[constants.HV_NODEINFO_KEY_VERSION] = (xen_major, xen_minor) |
272 | 06c9a520 | Michael Hanselmann | |
273 | 06c9a520 | Michael Hanselmann | return result
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274 | 06c9a520 | Michael Hanselmann | |
275 | 06c9a520 | Michael Hanselmann | |
276 | fac489a5 | Helga Velroyen | def _MergeInstanceInfo(info, instance_list): |
277 | 06c9a520 | Michael Hanselmann | """Updates node information from L{_ParseNodeInfo} with instance info.
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278 | 06c9a520 | Michael Hanselmann |
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279 | 06c9a520 | Michael Hanselmann | @type info: dict
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280 | 06c9a520 | Michael Hanselmann | @param info: Result from L{_ParseNodeInfo}
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281 | fac489a5 | Helga Velroyen | @type instance_list: list of tuples
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282 | fac489a5 | Helga Velroyen | @param instance_list: list of instance information; one tuple per instance
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283 | 06c9a520 | Michael Hanselmann | @rtype: dict
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284 | 06c9a520 | Michael Hanselmann |
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285 | 06c9a520 | Michael Hanselmann | """
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286 | 06c9a520 | Michael Hanselmann | total_instmem = 0
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287 | 06c9a520 | Michael Hanselmann | |
288 | fac489a5 | Helga Velroyen | for (name, _, mem, vcpus, _, _) in instance_list: |
289 | 06c9a520 | Michael Hanselmann | if name == _DOM0_NAME:
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290 | 06c9a520 | Michael Hanselmann | info["memory_dom0"] = mem
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291 | ff05ff94 | Bernardo Dal Seno | info["cpu_dom0"] = vcpus
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292 | 06c9a520 | Michael Hanselmann | |
293 | 06c9a520 | Michael Hanselmann | # Include Dom0 in total memory usage
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294 | 06c9a520 | Michael Hanselmann | total_instmem += mem |
295 | 06c9a520 | Michael Hanselmann | |
296 | 06c9a520 | Michael Hanselmann | memory_free = info.get("memory_free")
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297 | 06c9a520 | Michael Hanselmann | memory_total = info.get("memory_total")
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298 | 06c9a520 | Michael Hanselmann | |
299 | 06c9a520 | Michael Hanselmann | # Calculate memory used by hypervisor
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300 | 06c9a520 | Michael Hanselmann | if None not in [memory_total, memory_free, total_instmem]: |
301 | 06c9a520 | Michael Hanselmann | info["memory_hv"] = memory_total - memory_free - total_instmem
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302 | 06c9a520 | Michael Hanselmann | |
303 | 06c9a520 | Michael Hanselmann | return info
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304 | 06c9a520 | Michael Hanselmann | |
305 | 06c9a520 | Michael Hanselmann | |
306 | fac489a5 | Helga Velroyen | def _GetNodeInfo(info, instance_list): |
307 | 06c9a520 | Michael Hanselmann | """Combines L{_MergeInstanceInfo} and L{_ParseNodeInfo}.
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308 | 06c9a520 | Michael Hanselmann |
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309 | fac489a5 | Helga Velroyen | @type instance_list: list of tuples
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310 | fac489a5 | Helga Velroyen | @param instance_list: list of instance information; one tuple per instance
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311 | fac489a5 | Helga Velroyen |
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312 | 06c9a520 | Michael Hanselmann | """
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313 | fac489a5 | Helga Velroyen | return _MergeInstanceInfo(_ParseNodeInfo(info), instance_list)
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314 | 06c9a520 | Michael Hanselmann | |
315 | 06c9a520 | Michael Hanselmann | |
316 | d0bb3f24 | Michael Hanselmann | def _GetConfigFileDiskData(block_devices, blockdev_prefix, |
317 | d0bb3f24 | Michael Hanselmann | _letters=_DISK_LETTERS): |
318 | d0bb3f24 | Michael Hanselmann | """Get disk directives for Xen config file.
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319 | d0bb3f24 | Michael Hanselmann |
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320 | d0bb3f24 | Michael Hanselmann | This method builds the xen config disk directive according to the
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321 | d0bb3f24 | Michael Hanselmann | given disk_template and block_devices.
|
322 | d0bb3f24 | Michael Hanselmann |
|
323 | d0bb3f24 | Michael Hanselmann | @param block_devices: list of tuples (cfdev, rldev):
|
324 | d0bb3f24 | Michael Hanselmann | - cfdev: dict containing ganeti config disk part
|
325 | ce9283c1 | Thomas Thrainer | - rldev: ganeti.block.bdev.BlockDev object
|
326 | d0bb3f24 | Michael Hanselmann | @param blockdev_prefix: a string containing blockdevice prefix,
|
327 | d0bb3f24 | Michael Hanselmann | e.g. "sd" for /dev/sda
|
328 | d0bb3f24 | Michael Hanselmann |
|
329 | d0bb3f24 | Michael Hanselmann | @return: string containing disk directive for xen instance config file
|
330 | d0bb3f24 | Michael Hanselmann |
|
331 | d0bb3f24 | Michael Hanselmann | """
|
332 | d0bb3f24 | Michael Hanselmann | if len(block_devices) > len(_letters): |
333 | d0bb3f24 | Michael Hanselmann | raise errors.HypervisorError("Too many disks") |
334 | d0bb3f24 | Michael Hanselmann | |
335 | d0bb3f24 | Michael Hanselmann | disk_data = [] |
336 | d0bb3f24 | Michael Hanselmann | |
337 | 117a85a0 | Raffa Santi | for sd_suffix, (cfdev, dev_path, _) in zip(_letters, block_devices): |
338 | d0bb3f24 | Michael Hanselmann | sd_name = blockdev_prefix + sd_suffix |
339 | d0bb3f24 | Michael Hanselmann | |
340 | d0bb3f24 | Michael Hanselmann | if cfdev.mode == constants.DISK_RDWR:
|
341 | d0bb3f24 | Michael Hanselmann | mode = "w"
|
342 | d0bb3f24 | Michael Hanselmann | else:
|
343 | d0bb3f24 | Michael Hanselmann | mode = "r"
|
344 | d0bb3f24 | Michael Hanselmann | |
345 | a09639d1 | Santi Raffa | if cfdev.dev_type in constants.DTS_FILEBASED: |
346 | a57e502a | Thomas Thrainer | driver = _FILE_DRIVER_MAP[cfdev.logical_id[0]]
|
347 | d0bb3f24 | Michael Hanselmann | else:
|
348 | d0bb3f24 | Michael Hanselmann | driver = "phy"
|
349 | d0bb3f24 | Michael Hanselmann | |
350 | d0bb3f24 | Michael Hanselmann | disk_data.append("'%s:%s,%s,%s'" % (driver, dev_path, sd_name, mode))
|
351 | d0bb3f24 | Michael Hanselmann | |
352 | d0bb3f24 | Michael Hanselmann | return disk_data
|
353 | d0bb3f24 | Michael Hanselmann | |
354 | d0bb3f24 | Michael Hanselmann | |
355 | 295ed29b | Santi Raffa | def _QuoteCpuidField(data): |
356 | 295ed29b | Santi Raffa | """Add quotes around the CPUID field only if necessary.
|
357 | 295ed29b | Santi Raffa |
|
358 | 295ed29b | Santi Raffa | Xen CPUID fields come in two shapes: LIBXL strings, which need quotes around
|
359 | 295ed29b | Santi Raffa | them, and lists of XEND strings, which don't.
|
360 | 295ed29b | Santi Raffa |
|
361 | 295ed29b | Santi Raffa | @param data: Either type of parameter.
|
362 | 295ed29b | Santi Raffa | @return: The quoted version thereof.
|
363 | 295ed29b | Santi Raffa |
|
364 | 295ed29b | Santi Raffa | """
|
365 | 295ed29b | Santi Raffa | return "'%s'" % data if data.startswith("host") else data |
366 | 295ed29b | Santi Raffa | |
367 | 295ed29b | Santi Raffa | |
368 | a2d32034 | Michael Hanselmann | class XenHypervisor(hv_base.BaseHypervisor): |
369 | 65a6f9b7 | Michael Hanselmann | """Xen generic hypervisor interface
|
370 | 65a6f9b7 | Michael Hanselmann |
|
371 | 65a6f9b7 | Michael Hanselmann | This is the Xen base class used for both Xen PVM and HVM. It contains
|
372 | 65a6f9b7 | Michael Hanselmann | all the functionality that is identical for both.
|
373 | 65a6f9b7 | Michael Hanselmann |
|
374 | 65a6f9b7 | Michael Hanselmann | """
|
375 | d271c6fd | Iustin Pop | CAN_MIGRATE = True
|
376 | 7dd106d3 | Iustin Pop | REBOOT_RETRY_COUNT = 60
|
377 | 7dd106d3 | Iustin Pop | REBOOT_RETRY_INTERVAL = 10
|
378 | 397b7844 | Dimitris Aragiorgis | _ROOT_DIR = pathutils.RUN_DIR + "/xen-hypervisor"
|
379 | 397b7844 | Dimitris Aragiorgis | _NICS_DIR = _ROOT_DIR + "/nic" # contains NICs' info |
380 | 397b7844 | Dimitris Aragiorgis | _DIRS = [_ROOT_DIR, _NICS_DIR] |
381 | 65a6f9b7 | Michael Hanselmann | |
382 | 3680f662 | Guido Trotter | ANCILLARY_FILES = [ |
383 | 22d568c2 | Guido Trotter | XEND_CONFIG_FILE, |
384 | 22d568c2 | Guido Trotter | XL_CONFIG_FILE, |
385 | 22d568c2 | Guido Trotter | VIF_BRIDGE_SCRIPT, |
386 | 3680f662 | Guido Trotter | ] |
387 | 69ab2e12 | Guido Trotter | ANCILLARY_FILES_OPT = [ |
388 | 69ab2e12 | Guido Trotter | XL_CONFIG_FILE, |
389 | 3680f662 | Guido Trotter | ] |
390 | 3680f662 | Guido Trotter | |
391 | 3d942d8b | Michael Hanselmann | def __init__(self, _cfgdir=None, _run_cmd_fn=None, _cmd=None): |
392 | 0a903309 | Michael Hanselmann | hv_base.BaseHypervisor.__init__(self)
|
393 | 0a903309 | Michael Hanselmann | |
394 | 0a903309 | Michael Hanselmann | if _cfgdir is None: |
395 | 0a903309 | Michael Hanselmann | self._cfgdir = pathutils.XEN_CONFIG_DIR
|
396 | 0a903309 | Michael Hanselmann | else:
|
397 | 0a903309 | Michael Hanselmann | self._cfgdir = _cfgdir
|
398 | 0a903309 | Michael Hanselmann | |
399 | 3d942d8b | Michael Hanselmann | if _run_cmd_fn is None: |
400 | 3d942d8b | Michael Hanselmann | self._run_cmd_fn = utils.RunCmd
|
401 | 3d942d8b | Michael Hanselmann | else:
|
402 | 3d942d8b | Michael Hanselmann | self._run_cmd_fn = _run_cmd_fn
|
403 | 3d942d8b | Michael Hanselmann | |
404 | 3d942d8b | Michael Hanselmann | self._cmd = _cmd
|
405 | 3d942d8b | Michael Hanselmann | |
406 | f92d9674 | Helga Velroyen | @staticmethod
|
407 | f92d9674 | Helga Velroyen | def _GetCommandFromHvparams(hvparams): |
408 | f92d9674 | Helga Velroyen | """Returns the Xen command extracted from the given hvparams.
|
409 | f92d9674 | Helga Velroyen |
|
410 | f92d9674 | Helga Velroyen | @type hvparams: dict of strings
|
411 | f92d9674 | Helga Velroyen | @param hvparams: hypervisor parameters
|
412 | f92d9674 | Helga Velroyen |
|
413 | f92d9674 | Helga Velroyen | """
|
414 | f92d9674 | Helga Velroyen | if hvparams is None or constants.HV_XEN_CMD not in hvparams: |
415 | f92d9674 | Helga Velroyen | raise errors.HypervisorError("Cannot determine xen command.") |
416 | f92d9674 | Helga Velroyen | else:
|
417 | f92d9674 | Helga Velroyen | return hvparams[constants.HV_XEN_CMD]
|
418 | f92d9674 | Helga Velroyen | |
419 | 398fd4f6 | Helga Velroyen | def _GetCommand(self, hvparams): |
420 | d8784f7d | Michael Hanselmann | """Returns Xen command to use.
|
421 | d8784f7d | Michael Hanselmann |
|
422 | 51a95d00 | Helga Velroyen | @type hvparams: dict of strings
|
423 | 51a95d00 | Helga Velroyen | @param hvparams: hypervisor parameters
|
424 | 51a95d00 | Helga Velroyen |
|
425 | d8784f7d | Michael Hanselmann | """
|
426 | 3d942d8b | Michael Hanselmann | if self._cmd is None: |
427 | f92d9674 | Helga Velroyen | cmd = XenHypervisor._GetCommandFromHvparams(hvparams) |
428 | 3d942d8b | Michael Hanselmann | else:
|
429 | 3d942d8b | Michael Hanselmann | cmd = self._cmd
|
430 | 3d942d8b | Michael Hanselmann | |
431 | 3d942d8b | Michael Hanselmann | if cmd not in constants.KNOWN_XEN_COMMANDS: |
432 | 3d942d8b | Michael Hanselmann | raise errors.ProgrammerError("Unknown Xen command '%s'" % cmd) |
433 | 3d942d8b | Michael Hanselmann | |
434 | 3d942d8b | Michael Hanselmann | return cmd
|
435 | 3d942d8b | Michael Hanselmann | |
436 | 398fd4f6 | Helga Velroyen | def _RunXen(self, args, hvparams): |
437 | 81124130 | Michael Hanselmann | """Wrapper around L{utils.process.RunCmd} to run Xen command.
|
438 | 3d942d8b | Michael Hanselmann |
|
439 | 58e356a9 | Helga Velroyen | @type hvparams: dict of strings
|
440 | 58e356a9 | Helga Velroyen | @param hvparams: dictionary of hypervisor params
|
441 | 81124130 | Michael Hanselmann | @see: L{utils.process.RunCmd}
|
442 | 3d942d8b | Michael Hanselmann |
|
443 | 3d942d8b | Michael Hanselmann | """
|
444 | 398fd4f6 | Helga Velroyen | cmd = [self._GetCommand(hvparams)]
|
445 | 3d942d8b | Michael Hanselmann | cmd.extend(args) |
446 | 3d942d8b | Michael Hanselmann | |
447 | 3d942d8b | Michael Hanselmann | return self._run_cmd_fn(cmd) |
448 | 3d942d8b | Michael Hanselmann | |
449 | 0a903309 | Michael Hanselmann | def _ConfigFileName(self, instance_name): |
450 | c2be2532 | Guido Trotter | """Get the config file name for an instance.
|
451 | c2be2532 | Guido Trotter |
|
452 | c2be2532 | Guido Trotter | @param instance_name: instance name
|
453 | c2be2532 | Guido Trotter | @type instance_name: str
|
454 | c2be2532 | Guido Trotter | @return: fully qualified path to instance config file
|
455 | c2be2532 | Guido Trotter | @rtype: str
|
456 | c2be2532 | Guido Trotter |
|
457 | c2be2532 | Guido Trotter | """
|
458 | 0a903309 | Michael Hanselmann | return utils.PathJoin(self._cfgdir, instance_name) |
459 | c2be2532 | Guido Trotter | |
460 | 5661b908 | Iustin Pop | @classmethod
|
461 | 2a3bbbaa | Dimitris Aragiorgis | def _WriteNICInfoFile(cls, instance, idx, nic): |
462 | 397b7844 | Dimitris Aragiorgis | """Write the Xen config file for the instance.
|
463 | 397b7844 | Dimitris Aragiorgis |
|
464 | 397b7844 | Dimitris Aragiorgis | This version of the function just writes the config file from static data.
|
465 | 397b7844 | Dimitris Aragiorgis |
|
466 | 397b7844 | Dimitris Aragiorgis | """
|
467 | 2a3bbbaa | Dimitris Aragiorgis | instance_name = instance.name |
468 | 397b7844 | Dimitris Aragiorgis | dirs = [(dname, constants.RUN_DIRS_MODE) |
469 | 397b7844 | Dimitris Aragiorgis | for dname in cls._DIRS + [cls._InstanceNICDir(instance_name)]] |
470 | 397b7844 | Dimitris Aragiorgis | utils.EnsureDirs(dirs) |
471 | 397b7844 | Dimitris Aragiorgis | |
472 | 397b7844 | Dimitris Aragiorgis | cfg_file = cls._InstanceNICFile(instance_name, idx) |
473 | 397b7844 | Dimitris Aragiorgis | data = StringIO() |
474 | 397b7844 | Dimitris Aragiorgis | |
475 | 4a65d4fd | Thomas Thrainer | data.write("TAGS=%s\n" % r"\ ".join(instance.GetTags())) |
476 | 397b7844 | Dimitris Aragiorgis | if nic.netinfo:
|
477 | 397b7844 | Dimitris Aragiorgis | netinfo = objects.Network.FromDict(nic.netinfo) |
478 | 884ec6d4 | Dimitris Aragiorgis | for k, v in netinfo.HooksDict().iteritems(): |
479 | 884ec6d4 | Dimitris Aragiorgis | data.write("%s=%s\n" % (k, v))
|
480 | 397b7844 | Dimitris Aragiorgis | |
481 | 397b7844 | Dimitris Aragiorgis | data.write("MAC=%s\n" % nic.mac)
|
482 | cc6fd3da | Dimitris Aragiorgis | if nic.ip:
|
483 | cc6fd3da | Dimitris Aragiorgis | data.write("IP=%s\n" % nic.ip)
|
484 | cc6fd3da | Dimitris Aragiorgis | data.write("INTERFACE_INDEX=%s\n" % str(idx)) |
485 | cc6fd3da | Dimitris Aragiorgis | if nic.name:
|
486 | cc6fd3da | Dimitris Aragiorgis | data.write("INTERFACE_NAME=%s\n" % nic.name)
|
487 | cc6fd3da | Dimitris Aragiorgis | data.write("INTERFACE_UUID=%s\n" % nic.uuid)
|
488 | 397b7844 | Dimitris Aragiorgis | data.write("MODE=%s\n" % nic.nicparams[constants.NIC_MODE])
|
489 | 397b7844 | Dimitris Aragiorgis | data.write("LINK=%s\n" % nic.nicparams[constants.NIC_LINK])
|
490 | 397b7844 | Dimitris Aragiorgis | |
491 | 397b7844 | Dimitris Aragiorgis | try:
|
492 | 397b7844 | Dimitris Aragiorgis | utils.WriteFile(cfg_file, data=data.getvalue()) |
493 | 397b7844 | Dimitris Aragiorgis | except EnvironmentError, err: |
494 | 397b7844 | Dimitris Aragiorgis | raise errors.HypervisorError("Cannot write Xen instance configuration" |
495 | 397b7844 | Dimitris Aragiorgis | " file %s: %s" % (cfg_file, err))
|
496 | 397b7844 | Dimitris Aragiorgis | |
497 | 397b7844 | Dimitris Aragiorgis | @classmethod
|
498 | 397b7844 | Dimitris Aragiorgis | def _InstanceNICDir(cls, instance_name): |
499 | 397b7844 | Dimitris Aragiorgis | """Returns the directory holding the tap device files for a given instance.
|
500 | 397b7844 | Dimitris Aragiorgis |
|
501 | 397b7844 | Dimitris Aragiorgis | """
|
502 | 397b7844 | Dimitris Aragiorgis | return utils.PathJoin(cls._NICS_DIR, instance_name)
|
503 | 397b7844 | Dimitris Aragiorgis | |
504 | 397b7844 | Dimitris Aragiorgis | @classmethod
|
505 | 397b7844 | Dimitris Aragiorgis | def _InstanceNICFile(cls, instance_name, seq): |
506 | 397b7844 | Dimitris Aragiorgis | """Returns the name of the file containing the tap device for a given NIC
|
507 | 397b7844 | Dimitris Aragiorgis |
|
508 | 397b7844 | Dimitris Aragiorgis | """
|
509 | 397b7844 | Dimitris Aragiorgis | return utils.PathJoin(cls._InstanceNICDir(instance_name), str(seq)) |
510 | 397b7844 | Dimitris Aragiorgis | |
511 | 397b7844 | Dimitris Aragiorgis | @classmethod
|
512 | c3d839f5 | Michael Hanselmann | def _GetConfig(cls, instance, startup_memory, block_devices): |
513 | c3d839f5 | Michael Hanselmann | """Build Xen configuration for an instance.
|
514 | 65a6f9b7 | Michael Hanselmann |
|
515 | 65a6f9b7 | Michael Hanselmann | """
|
516 | 65a6f9b7 | Michael Hanselmann | raise NotImplementedError |
517 | 65a6f9b7 | Michael Hanselmann | |
518 | c3d839f5 | Michael Hanselmann | def _WriteConfigFile(self, instance_name, data): |
519 | 4390ccff | Guido Trotter | """Write the Xen config file for the instance.
|
520 | 4390ccff | Guido Trotter |
|
521 | 4390ccff | Guido Trotter | This version of the function just writes the config file from static data.
|
522 | 4390ccff | Guido Trotter |
|
523 | 4390ccff | Guido Trotter | """
|
524 | 1a63f285 | Iustin Pop | # just in case it exists
|
525 | 0a903309 | Michael Hanselmann | utils.RemoveFile(utils.PathJoin(self._cfgdir, "auto", instance_name)) |
526 | a8e8c0c6 | Michael Hanselmann | |
527 | 0a903309 | Michael Hanselmann | cfg_file = self._ConfigFileName(instance_name)
|
528 | 1a63f285 | Iustin Pop | try:
|
529 | 1a63f285 | Iustin Pop | utils.WriteFile(cfg_file, data=data) |
530 | 1a63f285 | Iustin Pop | except EnvironmentError, err: |
531 | 1a63f285 | Iustin Pop | raise errors.HypervisorError("Cannot write Xen instance configuration" |
532 | 1a63f285 | Iustin Pop | " file %s: %s" % (cfg_file, err))
|
533 | 4390ccff | Guido Trotter | |
534 | 0a903309 | Michael Hanselmann | def _ReadConfigFile(self, instance_name): |
535 | 4390ccff | Guido Trotter | """Returns the contents of the instance config file.
|
536 | 4390ccff | Guido Trotter |
|
537 | 4390ccff | Guido Trotter | """
|
538 | 0a903309 | Michael Hanselmann | filename = self._ConfigFileName(instance_name)
|
539 | 76c364d9 | Michael Hanselmann | |
540 | 4390ccff | Guido Trotter | try:
|
541 | 76c364d9 | Michael Hanselmann | file_content = utils.ReadFile(filename) |
542 | 4390ccff | Guido Trotter | except EnvironmentError, err: |
543 | 4390ccff | Guido Trotter | raise errors.HypervisorError("Failed to load Xen config file: %s" % err) |
544 | 76c364d9 | Michael Hanselmann | |
545 | 4390ccff | Guido Trotter | return file_content
|
546 | 4390ccff | Guido Trotter | |
547 | 0a903309 | Michael Hanselmann | def _RemoveConfigFile(self, instance_name): |
548 | 65a6f9b7 | Michael Hanselmann | """Remove the xen configuration file.
|
549 | 65a6f9b7 | Michael Hanselmann |
|
550 | 65a6f9b7 | Michael Hanselmann | """
|
551 | 0a903309 | Michael Hanselmann | utils.RemoveFile(self._ConfigFileName(instance_name))
|
552 | 397b7844 | Dimitris Aragiorgis | try:
|
553 | 397b7844 | Dimitris Aragiorgis | shutil.rmtree(self._InstanceNICDir(instance_name))
|
554 | 397b7844 | Dimitris Aragiorgis | except OSError, err: |
555 | 397b7844 | Dimitris Aragiorgis | if err.errno != errno.ENOENT:
|
556 | 397b7844 | Dimitris Aragiorgis | raise
|
557 | 65a6f9b7 | Michael Hanselmann | |
558 | 48bba9de | Balazs Lecz | def _StashConfigFile(self, instance_name): |
559 | 48bba9de | Balazs Lecz | """Move the Xen config file to the log directory and return its new path.
|
560 | 48bba9de | Balazs Lecz |
|
561 | 48bba9de | Balazs Lecz | """
|
562 | 48bba9de | Balazs Lecz | old_filename = self._ConfigFileName(instance_name)
|
563 | 48bba9de | Balazs Lecz | base = ("%s-%s" %
|
564 | 48bba9de | Balazs Lecz | (instance_name, utils.TimestampForFilename())) |
565 | 48bba9de | Balazs Lecz | new_filename = utils.PathJoin(pathutils.LOG_XEN_DIR, base) |
566 | 48bba9de | Balazs Lecz | utils.RenameFile(old_filename, new_filename) |
567 | 48bba9de | Balazs Lecz | return new_filename
|
568 | 48bba9de | Balazs Lecz | |
569 | 398fd4f6 | Helga Velroyen | def _GetInstanceList(self, include_node, hvparams): |
570 | 9d22cc90 | Jose A. Lopes | """Wrapper around module level L{_GetAllInstanceList}.
|
571 | 06b78e8b | Michael Hanselmann |
|
572 | 398fd4f6 | Helga Velroyen | @type hvparams: dict of strings
|
573 | 398fd4f6 | Helga Velroyen | @param hvparams: hypervisor parameters to be used on this node
|
574 | 398fd4f6 | Helga Velroyen |
|
575 | 06b78e8b | Michael Hanselmann | """
|
576 | 9d22cc90 | Jose A. Lopes | return _GetAllInstanceList(lambda: self._RunXen(["list"], hvparams), |
577 | 9d22cc90 | Jose A. Lopes | include_node) |
578 | 65a6f9b7 | Michael Hanselmann | |
579 | 58e356a9 | Helga Velroyen | def ListInstances(self, hvparams=None): |
580 | 65a6f9b7 | Michael Hanselmann | """Get the list of running instances.
|
581 | 65a6f9b7 | Michael Hanselmann |
|
582 | 65a6f9b7 | Michael Hanselmann | """
|
583 | 398fd4f6 | Helga Velroyen | instance_list = self._GetInstanceList(False, hvparams) |
584 | 36bebc53 | Helga Velroyen | names = [info[0] for info in instance_list] |
585 | 65a6f9b7 | Michael Hanselmann | return names
|
586 | 65a6f9b7 | Michael Hanselmann | |
587 | 0bbec3af | Helga Velroyen | def GetInstanceInfo(self, instance_name, hvparams=None): |
588 | 65a6f9b7 | Michael Hanselmann | """Get instance properties.
|
589 | 65a6f9b7 | Michael Hanselmann |
|
590 | 0bbec3af | Helga Velroyen | @type instance_name: string
|
591 | c41eea6e | Iustin Pop | @param instance_name: the instance name
|
592 | 0bbec3af | Helga Velroyen | @type hvparams: dict of strings
|
593 | 0bbec3af | Helga Velroyen | @param hvparams: the instance's hypervisor params
|
594 | c41eea6e | Iustin Pop |
|
595 | c41eea6e | Iustin Pop | @return: tuple (name, id, memory, vcpus, stat, times)
|
596 | 65a6f9b7 | Michael Hanselmann |
|
597 | 65a6f9b7 | Michael Hanselmann | """
|
598 | 398fd4f6 | Helga Velroyen | instance_list = self._GetInstanceList(instance_name == _DOM0_NAME, hvparams)
|
599 | 65a6f9b7 | Michael Hanselmann | result = None
|
600 | 36bebc53 | Helga Velroyen | for data in instance_list: |
601 | 65a6f9b7 | Michael Hanselmann | if data[0] == instance_name: |
602 | 65a6f9b7 | Michael Hanselmann | result = data |
603 | 65a6f9b7 | Michael Hanselmann | break
|
604 | 65a6f9b7 | Michael Hanselmann | return result
|
605 | 65a6f9b7 | Michael Hanselmann | |
606 | 0200a1af | Helga Velroyen | def GetAllInstancesInfo(self, hvparams=None): |
607 | 65a6f9b7 | Michael Hanselmann | """Get properties of all instances.
|
608 | 65a6f9b7 | Michael Hanselmann |
|
609 | 0200a1af | Helga Velroyen | @type hvparams: dict of strings
|
610 | 0200a1af | Helga Velroyen | @param hvparams: hypervisor parameters
|
611 | 9d22cc90 | Jose A. Lopes |
|
612 | 9d22cc90 | Jose A. Lopes | @rtype: (string, string, int, int, HypervisorInstanceState, int)
|
613 | 9d22cc90 | Jose A. Lopes | @return: list of tuples (name, id, memory, vcpus, state, times)
|
614 | c41eea6e | Iustin Pop |
|
615 | 65a6f9b7 | Michael Hanselmann | """
|
616 | 398fd4f6 | Helga Velroyen | return self._GetInstanceList(False, hvparams) |
617 | 65a6f9b7 | Michael Hanselmann | |
618 | c3d839f5 | Michael Hanselmann | def _MakeConfigFile(self, instance, startup_memory, block_devices): |
619 | c3d839f5 | Michael Hanselmann | """Gather configuration details and write to disk.
|
620 | c3d839f5 | Michael Hanselmann |
|
621 | c3d839f5 | Michael Hanselmann | See L{_GetConfig} for arguments.
|
622 | c3d839f5 | Michael Hanselmann |
|
623 | c3d839f5 | Michael Hanselmann | """
|
624 | c3d839f5 | Michael Hanselmann | buf = StringIO() |
625 | c3d839f5 | Michael Hanselmann | buf.write("# Automatically generated by Ganeti. Do not edit!\n")
|
626 | c3d839f5 | Michael Hanselmann | buf.write("\n")
|
627 | c3d839f5 | Michael Hanselmann | buf.write(self._GetConfig(instance, startup_memory, block_devices))
|
628 | c3d839f5 | Michael Hanselmann | buf.write("\n")
|
629 | c3d839f5 | Michael Hanselmann | |
630 | c3d839f5 | Michael Hanselmann | self._WriteConfigFile(instance.name, buf.getvalue())
|
631 | c3d839f5 | Michael Hanselmann | |
632 | 323f9095 | Stephen Shirley | def StartInstance(self, instance, block_devices, startup_paused): |
633 | c41eea6e | Iustin Pop | """Start an instance.
|
634 | c41eea6e | Iustin Pop |
|
635 | c41eea6e | Iustin Pop | """
|
636 | 30b12688 | Jose A. Lopes | startup_memory = self._InstanceStartupMemory(instance)
|
637 | c3d839f5 | Michael Hanselmann | |
638 | c3d839f5 | Michael Hanselmann | self._MakeConfigFile(instance, startup_memory, block_devices)
|
639 | c3d839f5 | Michael Hanselmann | |
640 | 3d942d8b | Michael Hanselmann | cmd = ["create"]
|
641 | 323f9095 | Stephen Shirley | if startup_paused:
|
642 | 3d942d8b | Michael Hanselmann | cmd.append("-p")
|
643 | 3d942d8b | Michael Hanselmann | cmd.append(self._ConfigFileName(instance.name))
|
644 | 65a6f9b7 | Michael Hanselmann | |
645 | 398fd4f6 | Helga Velroyen | result = self._RunXen(cmd, instance.hvparams)
|
646 | 65a6f9b7 | Michael Hanselmann | if result.failed:
|
647 | 48bba9de | Balazs Lecz | # Move the Xen configuration file to the log directory to avoid
|
648 | 48bba9de | Balazs Lecz | # leaving a stale config file behind.
|
649 | 48bba9de | Balazs Lecz | stashed_config = self._StashConfigFile(instance.name)
|
650 | 48bba9de | Balazs Lecz | raise errors.HypervisorError("Failed to start instance %s: %s (%s). Moved" |
651 | 48bba9de | Balazs Lecz | " config file to %s" %
|
652 | 65a6f9b7 | Michael Hanselmann | (instance.name, result.fail_reason, |
653 | 48bba9de | Balazs Lecz | result.output, stashed_config)) |
654 | 65a6f9b7 | Michael Hanselmann | |
655 | bbcf7ad0 | Iustin Pop | def StopInstance(self, instance, force=False, retry=False, name=None): |
656 | c41eea6e | Iustin Pop | """Stop an instance.
|
657 | c41eea6e | Iustin Pop |
|
658 | c41eea6e | Iustin Pop | """
|
659 | bbcf7ad0 | Iustin Pop | if name is None: |
660 | bbcf7ad0 | Iustin Pop | name = instance.name |
661 | 4b8b172d | Michael Hanselmann | |
662 | 58e356a9 | Helga Velroyen | return self._StopInstance(name, force, instance.hvparams) |
663 | 31da5ab5 | Michael Hanselmann | |
664 | affe1792 | Klaus Aehlig | def _ShutdownInstance(self, name, hvparams): |
665 | 364c350f | Jose A. Lopes | """Shutdown an instance if the instance is running.
|
666 | 364c350f | Jose A. Lopes |
|
667 | 364c350f | Jose A. Lopes | @type name: string
|
668 | 364c350f | Jose A. Lopes | @param name: name of the instance to stop
|
669 | affe1792 | Klaus Aehlig | @type hvparams: dict of string
|
670 | affe1792 | Klaus Aehlig | @param hvparams: hypervisor parameters of the instance
|
671 | 364c350f | Jose A. Lopes |
|
672 | 364c350f | Jose A. Lopes | The '-w' flag waits for shutdown to complete which avoids the need
|
673 | 364c350f | Jose A. Lopes | to poll in the case where we want to destroy the domain
|
674 | 364c350f | Jose A. Lopes | immediately after shutdown.
|
675 | 364c350f | Jose A. Lopes |
|
676 | 364c350f | Jose A. Lopes | """
|
677 | 3d680d45 | Klaus Aehlig | instance_info = self.GetInstanceInfo(name, hvparams=hvparams)
|
678 | 364c350f | Jose A. Lopes | |
679 | 364c350f | Jose A. Lopes | if instance_info is None or _IsInstanceShutdown(instance_info[4]): |
680 | 364c350f | Jose A. Lopes | logging.info("Failed to shutdown instance %s, not running", name)
|
681 | 364c350f | Jose A. Lopes | return None |
682 | 364c350f | Jose A. Lopes | |
683 | affe1792 | Klaus Aehlig | return self._RunXen(["shutdown", "-w", name], hvparams) |
684 | 9d22cc90 | Jose A. Lopes | |
685 | 9d22cc90 | Jose A. Lopes | def _DestroyInstance(self, name, hvparams): |
686 | 364c350f | Jose A. Lopes | """Destroy an instance if the instance if the instance exists.
|
687 | 70d8491f | Jose A. Lopes |
|
688 | 364c350f | Jose A. Lopes | @type name: string
|
689 | 364c350f | Jose A. Lopes | @param name: name of the instance to destroy
|
690 | affe1792 | Klaus Aehlig | @type hvparams: dict of string
|
691 | affe1792 | Klaus Aehlig | @param hvparams: hypervisor parameters of the instance
|
692 | 364c350f | Jose A. Lopes |
|
693 | 364c350f | Jose A. Lopes | """
|
694 | 3d680d45 | Klaus Aehlig | instance_info = self.GetInstanceInfo(name, hvparams=hvparams)
|
695 | 364c350f | Jose A. Lopes | |
696 | 364c350f | Jose A. Lopes | if instance_info is None: |
697 | 364c350f | Jose A. Lopes | logging.info("Failed to destroy instance %s, does not exist", name)
|
698 | 364c350f | Jose A. Lopes | return None |
699 | 364c350f | Jose A. Lopes | |
700 | affe1792 | Klaus Aehlig | return self._RunXen(["destroy", name], hvparams) |
701 | 9d22cc90 | Jose A. Lopes | |
702 | 70d8491f | Jose A. Lopes | # Destroy a domain only if necessary
|
703 | 70d8491f | Jose A. Lopes | #
|
704 | 70d8491f | Jose A. Lopes | # This method checks if the domain has already been destroyed before
|
705 | 70d8491f | Jose A. Lopes | # issuing the 'destroy' command. This step is necessary to handle
|
706 | 70d8491f | Jose A. Lopes | # domains created by other versions of Ganeti. For example, an
|
707 | 70d8491f | Jose A. Lopes | # instance created with 2.10 will be destroy by the
|
708 | 70d8491f | Jose A. Lopes | # '_ShutdownInstance', thus not requiring an additional destroy,
|
709 | 70d8491f | Jose A. Lopes | # which would cause an error if issued. See issue 619.
|
710 | 70d8491f | Jose A. Lopes | def _DestroyInstanceIfAlive(self, name, hvparams): |
711 | 70d8491f | Jose A. Lopes | instance_info = self.GetInstanceInfo(name, hvparams=hvparams)
|
712 | 70d8491f | Jose A. Lopes | |
713 | 70d8491f | Jose A. Lopes | if instance_info is None: |
714 | 70d8491f | Jose A. Lopes | raise errors.HypervisorError("Failed to destroy instance %s, already" |
715 | 70d8491f | Jose A. Lopes | " destroyed" % name)
|
716 | 70d8491f | Jose A. Lopes | else:
|
717 | 70d8491f | Jose A. Lopes | self._DestroyInstance(name, hvparams)
|
718 | 70d8491f | Jose A. Lopes | |
719 | 58e356a9 | Helga Velroyen | def _StopInstance(self, name, force, hvparams): |
720 | 31da5ab5 | Michael Hanselmann | """Stop an instance.
|
721 | 31da5ab5 | Michael Hanselmann |
|
722 | 58e356a9 | Helga Velroyen | @type name: string
|
723 | 364c350f | Jose A. Lopes | @param name: name of the instance to destroy
|
724 | 364c350f | Jose A. Lopes |
|
725 | 58e356a9 | Helga Velroyen | @type force: boolean
|
726 | 364c350f | Jose A. Lopes | @param force: whether to do a "hard" stop (destroy)
|
727 | 364c350f | Jose A. Lopes |
|
728 | 58e356a9 | Helga Velroyen | @type hvparams: dict of string
|
729 | 58e356a9 | Helga Velroyen | @param hvparams: hypervisor parameters of the instance
|
730 | 58e356a9 | Helga Velroyen |
|
731 | 31da5ab5 | Michael Hanselmann | """
|
732 | 9d22cc90 | Jose A. Lopes | instance_info = self.GetInstanceInfo(name, hvparams=hvparams)
|
733 | 9d22cc90 | Jose A. Lopes | |
734 | 9d22cc90 | Jose A. Lopes | if instance_info is None: |
735 | 9d22cc90 | Jose A. Lopes | raise errors.HypervisorError("Failed to shutdown instance %s," |
736 | 9d22cc90 | Jose A. Lopes | " not running" % name)
|
737 | 9d22cc90 | Jose A. Lopes | |
738 | 65a6f9b7 | Michael Hanselmann | if force:
|
739 | f3ac6f36 | Klaus Aehlig | result = self._DestroyInstanceIfAlive(name, hvparams)
|
740 | 65a6f9b7 | Michael Hanselmann | else:
|
741 | affe1792 | Klaus Aehlig | self._ShutdownInstance(name, hvparams)
|
742 | f3ac6f36 | Klaus Aehlig | result = self._DestroyInstanceIfAlive(name, hvparams)
|
743 | 65a6f9b7 | Michael Hanselmann | |
744 | 364c350f | Jose A. Lopes | if result is not None and result.failed and \ |
745 | 3d680d45 | Klaus Aehlig | self.GetInstanceInfo(name, hvparams=hvparams) is not None: |
746 | 3213d3c8 | Iustin Pop | raise errors.HypervisorError("Failed to stop instance %s: %s, %s" % |
747 | bbcf7ad0 | Iustin Pop | (name, result.fail_reason, result.output)) |
748 | 65a6f9b7 | Michael Hanselmann | |
749 | 4b8b172d | Michael Hanselmann | # Remove configuration file if stopping/starting instance was successful
|
750 | 4b8b172d | Michael Hanselmann | self._RemoveConfigFile(name)
|
751 | 4b8b172d | Michael Hanselmann | |
752 | 65a6f9b7 | Michael Hanselmann | def RebootInstance(self, instance): |
753 | c41eea6e | Iustin Pop | """Reboot an instance.
|
754 | c41eea6e | Iustin Pop |
|
755 | c41eea6e | Iustin Pop | """
|
756 | 0bbec3af | Helga Velroyen | ini_info = self.GetInstanceInfo(instance.name, hvparams=instance.hvparams)
|
757 | 65a6f9b7 | Michael Hanselmann | |
758 | e0561198 | Iustin Pop | if ini_info is None: |
759 | e0561198 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s," |
760 | e0561198 | Iustin Pop | " not running" % instance.name)
|
761 | e0561198 | Iustin Pop | |
762 | 398fd4f6 | Helga Velroyen | result = self._RunXen(["reboot", instance.name], instance.hvparams) |
763 | 65a6f9b7 | Michael Hanselmann | if result.failed:
|
764 | 3213d3c8 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s: %s, %s" % |
765 | 3213d3c8 | Iustin Pop | (instance.name, result.fail_reason, |
766 | 3213d3c8 | Iustin Pop | result.output)) |
767 | 06b78e8b | Michael Hanselmann | |
768 | 06b78e8b | Michael Hanselmann | def _CheckInstance(): |
769 | 0bbec3af | Helga Velroyen | new_info = self.GetInstanceInfo(instance.name, hvparams=instance.hvparams)
|
770 | 06b78e8b | Michael Hanselmann | |
771 | 06b78e8b | Michael Hanselmann | # check if the domain ID has changed or the run time has decreased
|
772 | e0561198 | Iustin Pop | if (new_info is not None and |
773 | e0561198 | Iustin Pop | (new_info[1] != ini_info[1] or new_info[5] < ini_info[5])): |
774 | 06b78e8b | Michael Hanselmann | return
|
775 | 7dd106d3 | Iustin Pop | |
776 | 06b78e8b | Michael Hanselmann | raise utils.RetryAgain()
|
777 | 06b78e8b | Michael Hanselmann | |
778 | 06b78e8b | Michael Hanselmann | try:
|
779 | 06b78e8b | Michael Hanselmann | utils.Retry(_CheckInstance, self.REBOOT_RETRY_INTERVAL,
|
780 | 06b78e8b | Michael Hanselmann | self.REBOOT_RETRY_INTERVAL * self.REBOOT_RETRY_COUNT) |
781 | 06b78e8b | Michael Hanselmann | except utils.RetryTimeout:
|
782 | 7dd106d3 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s: instance" |
783 | 7dd106d3 | Iustin Pop | " did not reboot in the expected interval" %
|
784 | 7dd106d3 | Iustin Pop | (instance.name, )) |
785 | 65a6f9b7 | Michael Hanselmann | |
786 | 2c7a0373 | Guido Trotter | def BalloonInstanceMemory(self, instance, mem): |
787 | 2c7a0373 | Guido Trotter | """Balloon an instance memory to a certain value.
|
788 | 2c7a0373 | Guido Trotter |
|
789 | 2c7a0373 | Guido Trotter | @type instance: L{objects.Instance}
|
790 | 2c7a0373 | Guido Trotter | @param instance: instance to be accepted
|
791 | 2c7a0373 | Guido Trotter | @type mem: int
|
792 | 2c7a0373 | Guido Trotter | @param mem: actual memory size to use for instance runtime
|
793 | 2c7a0373 | Guido Trotter |
|
794 | 2c7a0373 | Guido Trotter | """
|
795 | 398fd4f6 | Helga Velroyen | result = self._RunXen(["mem-set", instance.name, mem], instance.hvparams) |
796 | 2c7a0373 | Guido Trotter | if result.failed:
|
797 | 2c7a0373 | Guido Trotter | raise errors.HypervisorError("Failed to balloon instance %s: %s (%s)" % |
798 | 2c7a0373 | Guido Trotter | (instance.name, result.fail_reason, |
799 | 2c7a0373 | Guido Trotter | result.output)) |
800 | 3d942d8b | Michael Hanselmann | |
801 | 3d942d8b | Michael Hanselmann | # Update configuration file
|
802 | 2c7a0373 | Guido Trotter | cmd = ["sed", "-ie", "s/^memory.*$/memory = %s/" % mem] |
803 | 0a903309 | Michael Hanselmann | cmd.append(self._ConfigFileName(instance.name))
|
804 | 3d942d8b | Michael Hanselmann | |
805 | 2c7a0373 | Guido Trotter | result = utils.RunCmd(cmd) |
806 | 2c7a0373 | Guido Trotter | if result.failed:
|
807 | 2c7a0373 | Guido Trotter | raise errors.HypervisorError("Failed to update memory for %s: %s (%s)" % |
808 | 2c7a0373 | Guido Trotter | (instance.name, result.fail_reason, |
809 | 2c7a0373 | Guido Trotter | result.output)) |
810 | 2c7a0373 | Guido Trotter | |
811 | fac489a5 | Helga Velroyen | def GetNodeInfo(self, hvparams=None): |
812 | 65a6f9b7 | Michael Hanselmann | """Return information about the node.
|
813 | 65a6f9b7 | Michael Hanselmann |
|
814 | 06c9a520 | Michael Hanselmann | @see: L{_GetNodeInfo} and L{_ParseNodeInfo}
|
815 | 65a6f9b7 | Michael Hanselmann |
|
816 | 65a6f9b7 | Michael Hanselmann | """
|
817 | 398fd4f6 | Helga Velroyen | result = self._RunXen(["info"], hvparams) |
818 | 65a6f9b7 | Michael Hanselmann | if result.failed:
|
819 | 2609da63 | Helga Velroyen | logging.error("Can't retrieve xen hypervisor information (%s): %s",
|
820 | 2609da63 | Helga Velroyen | result.fail_reason, result.output) |
821 | 65a6f9b7 | Michael Hanselmann | return None |
822 | 65a6f9b7 | Michael Hanselmann | |
823 | 398fd4f6 | Helga Velroyen | instance_list = self._GetInstanceList(True, hvparams) |
824 | fac489a5 | Helga Velroyen | return _GetNodeInfo(result.stdout, instance_list)
|
825 | 65a6f9b7 | Michael Hanselmann | |
826 | f92d9674 | Helga Velroyen | @classmethod
|
827 | a4417db4 | Thomas Thrainer | def GetInstanceConsole(cls, instance, primary_node, node_group, |
828 | c42be2c0 | Petr Pudlak | hvparams, beparams): |
829 | 65a6f9b7 | Michael Hanselmann | """Return a command for connecting to the console of an instance.
|
830 | 65a6f9b7 | Michael Hanselmann |
|
831 | 65a6f9b7 | Michael Hanselmann | """
|
832 | f92d9674 | Helga Velroyen | xen_cmd = XenHypervisor._GetCommandFromHvparams(hvparams) |
833 | c42be2c0 | Petr Pudlak | ndparams = node_group.FillND(primary_node) |
834 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
835 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_SSH, |
836 | 1c3231aa | Thomas Thrainer | host=primary_node.name, |
837 | c42be2c0 | Petr Pudlak | port=ndparams.get(constants.ND_SSH_PORT), |
838 | 052783ff | Michael Hanselmann | user=constants.SSH_CONSOLE_USER, |
839 | b9612abb | Iustin Pop | command=[pathutils.XEN_CONSOLE_WRAPPER, |
840 | 8ef418bb | Helga Velroyen | xen_cmd, instance.name]) |
841 | 65a6f9b7 | Michael Hanselmann | |
842 | 75bf3149 | Helga Velroyen | def Verify(self, hvparams=None): |
843 | 65a6f9b7 | Michael Hanselmann | """Verify the hypervisor.
|
844 | 65a6f9b7 | Michael Hanselmann |
|
845 | 65a6f9b7 | Michael Hanselmann | For Xen, this verifies that the xend process is running.
|
846 | 65a6f9b7 | Michael Hanselmann |
|
847 | 75bf3149 | Helga Velroyen | @type hvparams: dict of strings
|
848 | 75bf3149 | Helga Velroyen | @param hvparams: hypervisor parameters to be verified against
|
849 | 75bf3149 | Helga Velroyen |
|
850 | cd04dfd2 | Michael Hanselmann | @return: Problem description if something is wrong, C{None} otherwise
|
851 | cd04dfd2 | Michael Hanselmann |
|
852 | 65a6f9b7 | Michael Hanselmann | """
|
853 | 75bf3149 | Helga Velroyen | if hvparams is None: |
854 | 75bf3149 | Helga Velroyen | return "Could not verify the hypervisor, because no hvparams were" \ |
855 | 75bf3149 | Helga Velroyen | " provided."
|
856 | 75bf3149 | Helga Velroyen | |
857 | 75bf3149 | Helga Velroyen | if constants.HV_XEN_CMD in hvparams: |
858 | 75bf3149 | Helga Velroyen | xen_cmd = hvparams[constants.HV_XEN_CMD] |
859 | 75bf3149 | Helga Velroyen | try:
|
860 | 75bf3149 | Helga Velroyen | self._CheckToolstack(xen_cmd)
|
861 | 75bf3149 | Helga Velroyen | except errors.HypervisorError:
|
862 | 75bf3149 | Helga Velroyen | return "The configured xen toolstack '%s' is not available on this" \ |
863 | 75bf3149 | Helga Velroyen | " node." % xen_cmd
|
864 | 75bf3149 | Helga Velroyen | |
865 | 398fd4f6 | Helga Velroyen | result = self._RunXen(["info"], hvparams) |
866 | e3e66f02 | Michael Hanselmann | if result.failed:
|
867 | 75bf3149 | Helga Velroyen | return "Retrieving information from xen failed: %s, %s" % \ |
868 | 75bf3149 | Helga Velroyen | (result.fail_reason, result.output) |
869 | 65a6f9b7 | Michael Hanselmann | |
870 | cd04dfd2 | Michael Hanselmann | return None |
871 | cd04dfd2 | Michael Hanselmann | |
872 | 4390ccff | Guido Trotter | def MigrationInfo(self, instance): |
873 | 4390ccff | Guido Trotter | """Get instance information to perform a migration.
|
874 | 4390ccff | Guido Trotter |
|
875 | 4390ccff | Guido Trotter | @type instance: L{objects.Instance}
|
876 | 4390ccff | Guido Trotter | @param instance: instance to be migrated
|
877 | 4390ccff | Guido Trotter | @rtype: string
|
878 | 4390ccff | Guido Trotter | @return: content of the xen config file
|
879 | 4390ccff | Guido Trotter |
|
880 | 4390ccff | Guido Trotter | """
|
881 | 4390ccff | Guido Trotter | return self._ReadConfigFile(instance.name) |
882 | 4390ccff | Guido Trotter | |
883 | 4390ccff | Guido Trotter | def AcceptInstance(self, instance, info, target): |
884 | 4390ccff | Guido Trotter | """Prepare to accept an instance.
|
885 | 4390ccff | Guido Trotter |
|
886 | 4390ccff | Guido Trotter | @type instance: L{objects.Instance}
|
887 | 4390ccff | Guido Trotter | @param instance: instance to be accepted
|
888 | 4390ccff | Guido Trotter | @type info: string
|
889 | 4390ccff | Guido Trotter | @param info: content of the xen config file on the source node
|
890 | 4390ccff | Guido Trotter | @type target: string
|
891 | 4390ccff | Guido Trotter | @param target: target host (usually ip), on this node
|
892 | 4390ccff | Guido Trotter |
|
893 | 4390ccff | Guido Trotter | """
|
894 | 4390ccff | Guido Trotter | pass
|
895 | 4390ccff | Guido Trotter | |
896 | 60af751d | Andrea Spadaccini | def FinalizeMigrationDst(self, instance, info, success): |
897 | 4390ccff | Guido Trotter | """Finalize an instance migration.
|
898 | 4390ccff | Guido Trotter |
|
899 | 4390ccff | Guido Trotter | After a successful migration we write the xen config file.
|
900 | 4390ccff | Guido Trotter | We do nothing on a failure, as we did not change anything at accept time.
|
901 | 4390ccff | Guido Trotter |
|
902 | 4390ccff | Guido Trotter | @type instance: L{objects.Instance}
|
903 | fea922fa | Guido Trotter | @param instance: instance whose migration is being finalized
|
904 | 4390ccff | Guido Trotter | @type info: string
|
905 | 4390ccff | Guido Trotter | @param info: content of the xen config file on the source node
|
906 | 4390ccff | Guido Trotter | @type success: boolean
|
907 | 4390ccff | Guido Trotter | @param success: whether the migration was a success or a failure
|
908 | 4390ccff | Guido Trotter |
|
909 | 4390ccff | Guido Trotter | """
|
910 | 4390ccff | Guido Trotter | if success:
|
911 | c3d839f5 | Michael Hanselmann | self._WriteConfigFile(instance.name, info)
|
912 | 4390ccff | Guido Trotter | |
913 | bc0a2284 | Helga Velroyen | def MigrateInstance(self, cluster_name, instance, target, live): |
914 | 6e7275c0 | Iustin Pop | """Migrate an instance to a target node.
|
915 | 6e7275c0 | Iustin Pop |
|
916 | 6e7275c0 | Iustin Pop | The migration will not be attempted if the instance is not
|
917 | 6e7275c0 | Iustin Pop | currently running.
|
918 | 6e7275c0 | Iustin Pop |
|
919 | 58d38b02 | Iustin Pop | @type instance: L{objects.Instance}
|
920 | 58d38b02 | Iustin Pop | @param instance: the instance to be migrated
|
921 | fdf7f055 | Guido Trotter | @type target: string
|
922 | fdf7f055 | Guido Trotter | @param target: ip address of the target node
|
923 | fdf7f055 | Guido Trotter | @type live: boolean
|
924 | fdf7f055 | Guido Trotter | @param live: perform a live migration
|
925 | fdf7f055 | Guido Trotter |
|
926 | 6e7275c0 | Iustin Pop | """
|
927 | d8784f7d | Michael Hanselmann | port = instance.hvparams[constants.HV_MIGRATION_PORT] |
928 | d8784f7d | Michael Hanselmann | |
929 | d8784f7d | Michael Hanselmann | return self._MigrateInstance(cluster_name, instance.name, target, port, |
930 | 8351df2f | Helga Velroyen | live, instance.hvparams) |
931 | d8784f7d | Michael Hanselmann | |
932 | d8784f7d | Michael Hanselmann | def _MigrateInstance(self, cluster_name, instance_name, target, port, live, |
933 | 8351df2f | Helga Velroyen | hvparams, _ping_fn=netutils.TcpPing): |
934 | d8784f7d | Michael Hanselmann | """Migrate an instance to a target node.
|
935 | d8784f7d | Michael Hanselmann |
|
936 | d8784f7d | Michael Hanselmann | @see: L{MigrateInstance} for details
|
937 | d8784f7d | Michael Hanselmann |
|
938 | d8784f7d | Michael Hanselmann | """
|
939 | 8351df2f | Helga Velroyen | if hvparams is None: |
940 | 8351df2f | Helga Velroyen | raise errors.HypervisorError("No hvparams provided.") |
941 | 8351df2f | Helga Velroyen | |
942 | 8351df2f | Helga Velroyen | if self.GetInstanceInfo(instance_name, hvparams=hvparams) is None: |
943 | 6e7275c0 | Iustin Pop | raise errors.HypervisorError("Instance not running, cannot migrate") |
944 | 50716be0 | Iustin Pop | |
945 | 398fd4f6 | Helga Velroyen | cmd = self._GetCommand(hvparams)
|
946 | 50716be0 | Iustin Pop | |
947 | d8784f7d | Michael Hanselmann | if (cmd == constants.XEN_CMD_XM and |
948 | d8784f7d | Michael Hanselmann | not _ping_fn(target, port, live_port_needed=True)): |
949 | 50716be0 | Iustin Pop | raise errors.HypervisorError("Remote host %s not listening on port" |
950 | 50716be0 | Iustin Pop | " %s, cannot migrate" % (target, port))
|
951 | 50716be0 | Iustin Pop | |
952 | 3d942d8b | Michael Hanselmann | args = ["migrate"]
|
953 | 3d942d8b | Michael Hanselmann | |
954 | d8784f7d | Michael Hanselmann | if cmd == constants.XEN_CMD_XM:
|
955 | 0625d08f | René Nussbaumer | args.extend(["-p", "%d" % port]) |
956 | 0625d08f | René Nussbaumer | if live:
|
957 | 0625d08f | René Nussbaumer | args.append("-l")
|
958 | 3d942d8b | Michael Hanselmann | |
959 | d8784f7d | Michael Hanselmann | elif cmd == constants.XEN_CMD_XL:
|
960 | d8784f7d | Michael Hanselmann | args.extend([ |
961 | d8784f7d | Michael Hanselmann | "-s", constants.XL_SSH_CMD % cluster_name,
|
962 | d8784f7d | Michael Hanselmann | "-C", self._ConfigFileName(instance_name), |
963 | d8784f7d | Michael Hanselmann | ]) |
964 | 3d942d8b | Michael Hanselmann | |
965 | 0625d08f | René Nussbaumer | else:
|
966 | d8784f7d | Michael Hanselmann | raise errors.HypervisorError("Unsupported Xen command: %s" % self._cmd) |
967 | 0625d08f | René Nussbaumer | |
968 | d8784f7d | Michael Hanselmann | args.extend([instance_name, target]) |
969 | 3d942d8b | Michael Hanselmann | |
970 | 398fd4f6 | Helga Velroyen | result = self._RunXen(args, hvparams)
|
971 | 6e7275c0 | Iustin Pop | if result.failed:
|
972 | 6e7275c0 | Iustin Pop | raise errors.HypervisorError("Failed to migrate instance %s: %s" % |
973 | d8784f7d | Michael Hanselmann | (instance_name, result.output)) |
974 | 60af751d | Andrea Spadaccini | |
975 | 60af751d | Andrea Spadaccini | def FinalizeMigrationSource(self, instance, success, live): |
976 | 60af751d | Andrea Spadaccini | """Finalize the instance migration on the source node.
|
977 | 60af751d | Andrea Spadaccini |
|
978 | 60af751d | Andrea Spadaccini | @type instance: L{objects.Instance}
|
979 | 60af751d | Andrea Spadaccini | @param instance: the instance that was migrated
|
980 | 60af751d | Andrea Spadaccini | @type success: bool
|
981 | 60af751d | Andrea Spadaccini | @param success: whether the migration succeeded or not
|
982 | 60af751d | Andrea Spadaccini | @type live: bool
|
983 | 60af751d | Andrea Spadaccini | @param live: whether the user requested a live migration or not
|
984 | 60af751d | Andrea Spadaccini |
|
985 | 60af751d | Andrea Spadaccini | """
|
986 | 60af751d | Andrea Spadaccini | # pylint: disable=W0613
|
987 | 60af751d | Andrea Spadaccini | if success:
|
988 | 60af751d | Andrea Spadaccini | # remove old xen file after migration succeeded
|
989 | 60af751d | Andrea Spadaccini | try:
|
990 | 60af751d | Andrea Spadaccini | self._RemoveConfigFile(instance.name)
|
991 | 60af751d | Andrea Spadaccini | except EnvironmentError: |
992 | 60af751d | Andrea Spadaccini | logging.exception("Failure while removing instance config file")
|
993 | 60af751d | Andrea Spadaccini | |
994 | 60af751d | Andrea Spadaccini | def GetMigrationStatus(self, instance): |
995 | 60af751d | Andrea Spadaccini | """Get the migration status
|
996 | 60af751d | Andrea Spadaccini |
|
997 | 60af751d | Andrea Spadaccini | As MigrateInstance for Xen is still blocking, if this method is called it
|
998 | 60af751d | Andrea Spadaccini | means that MigrateInstance has completed successfully. So we can safely
|
999 | 60af751d | Andrea Spadaccini | assume that the migration was successful and notify this fact to the client.
|
1000 | 60af751d | Andrea Spadaccini |
|
1001 | 60af751d | Andrea Spadaccini | @type instance: L{objects.Instance}
|
1002 | 60af751d | Andrea Spadaccini | @param instance: the instance that is being migrated
|
1003 | 60af751d | Andrea Spadaccini | @rtype: L{objects.MigrationStatus}
|
1004 | 60af751d | Andrea Spadaccini | @return: the status of the current migration (one of
|
1005 | 60af751d | Andrea Spadaccini | L{constants.HV_MIGRATION_VALID_STATUSES}), plus any additional
|
1006 | 60af751d | Andrea Spadaccini | progress info that can be retrieved from the hypervisor
|
1007 | 60af751d | Andrea Spadaccini |
|
1008 | 60af751d | Andrea Spadaccini | """
|
1009 | 60af751d | Andrea Spadaccini | return objects.MigrationStatus(status=constants.HV_MIGRATION_COMPLETED)
|
1010 | 6e7275c0 | Iustin Pop | |
1011 | 8ef418bb | Helga Velroyen | def PowercycleNode(self, hvparams=None): |
1012 | f5118ade | Iustin Pop | """Xen-specific powercycle.
|
1013 | f5118ade | Iustin Pop |
|
1014 | f5118ade | Iustin Pop | This first does a Linux reboot (which triggers automatically a Xen
|
1015 | f5118ade | Iustin Pop | reboot), and if that fails it tries to do a Xen reboot. The reason
|
1016 | f5118ade | Iustin Pop | we don't try a Xen reboot first is that the xen reboot launches an
|
1017 | f5118ade | Iustin Pop | external command which connects to the Xen hypervisor, and that
|
1018 | f5118ade | Iustin Pop | won't work in case the root filesystem is broken and/or the xend
|
1019 | f5118ade | Iustin Pop | daemon is not working.
|
1020 | f5118ade | Iustin Pop |
|
1021 | 8ef418bb | Helga Velroyen | @type hvparams: dict of strings
|
1022 | 8ef418bb | Helga Velroyen | @param hvparams: hypervisor params to be used on this node
|
1023 | 8ef418bb | Helga Velroyen |
|
1024 | f5118ade | Iustin Pop | """
|
1025 | f5118ade | Iustin Pop | try:
|
1026 | 8ef418bb | Helga Velroyen | self.LinuxPowercycle()
|
1027 | f5118ade | Iustin Pop | finally:
|
1028 | 8ef418bb | Helga Velroyen | xen_cmd = self._GetCommand(hvparams)
|
1029 | 8ef418bb | Helga Velroyen | utils.RunCmd([xen_cmd, "debug", "R"]) |
1030 | f5118ade | Iustin Pop | |
1031 | 75bf3149 | Helga Velroyen | def _CheckToolstack(self, xen_cmd): |
1032 | 75bf3149 | Helga Velroyen | """Check whether the given toolstack is available on the node.
|
1033 | 75bf3149 | Helga Velroyen |
|
1034 | 75bf3149 | Helga Velroyen | @type xen_cmd: string
|
1035 | 75bf3149 | Helga Velroyen | @param xen_cmd: xen command (e.g. 'xm' or 'xl')
|
1036 | 75bf3149 | Helga Velroyen |
|
1037 | 75bf3149 | Helga Velroyen | """
|
1038 | 75bf3149 | Helga Velroyen | binary_found = self._CheckToolstackBinary(xen_cmd)
|
1039 | 75bf3149 | Helga Velroyen | if not binary_found: |
1040 | 75bf3149 | Helga Velroyen | raise errors.HypervisorError("No '%s' binary found on node." % xen_cmd) |
1041 | 75bf3149 | Helga Velroyen | elif xen_cmd == constants.XEN_CMD_XL:
|
1042 | 75bf3149 | Helga Velroyen | if not self._CheckToolstackXlConfigured(): |
1043 | 75bf3149 | Helga Velroyen | raise errors.HypervisorError("Toolstack '%s' is not enabled on this" |
1044 | 75bf3149 | Helga Velroyen | "node." % xen_cmd)
|
1045 | 75bf3149 | Helga Velroyen | |
1046 | 75bf3149 | Helga Velroyen | def _CheckToolstackBinary(self, xen_cmd): |
1047 | 75bf3149 | Helga Velroyen | """Checks whether the xen command's binary is found on the machine.
|
1048 | 75bf3149 | Helga Velroyen |
|
1049 | 75bf3149 | Helga Velroyen | """
|
1050 | 75bf3149 | Helga Velroyen | if xen_cmd not in constants.KNOWN_XEN_COMMANDS: |
1051 | 75bf3149 | Helga Velroyen | raise errors.HypervisorError("Unknown xen command '%s'." % xen_cmd) |
1052 | 75bf3149 | Helga Velroyen | result = self._run_cmd_fn(["which", xen_cmd]) |
1053 | 75bf3149 | Helga Velroyen | return not result.failed |
1054 | 75bf3149 | Helga Velroyen | |
1055 | 75bf3149 | Helga Velroyen | def _CheckToolstackXlConfigured(self): |
1056 | 75bf3149 | Helga Velroyen | """Checks whether xl is enabled on an xl-capable node.
|
1057 | 75bf3149 | Helga Velroyen |
|
1058 | 75bf3149 | Helga Velroyen | @rtype: bool
|
1059 | 75bf3149 | Helga Velroyen | @returns: C{True} if 'xl' is enabled, C{False} otherwise
|
1060 | 75bf3149 | Helga Velroyen |
|
1061 | 75bf3149 | Helga Velroyen | """
|
1062 | 75bf3149 | Helga Velroyen | result = self._run_cmd_fn([constants.XEN_CMD_XL, "help"]) |
1063 | 75bf3149 | Helga Velroyen | if not result.failed: |
1064 | 75bf3149 | Helga Velroyen | return True |
1065 | 75bf3149 | Helga Velroyen | elif result.failed:
|
1066 | 75bf3149 | Helga Velroyen | if "toolstack" in result.stderr: |
1067 | 75bf3149 | Helga Velroyen | return False |
1068 | 75bf3149 | Helga Velroyen | # xl fails for some other reason than the toolstack
|
1069 | 75bf3149 | Helga Velroyen | else:
|
1070 | 75bf3149 | Helga Velroyen | raise errors.HypervisorError("Cannot run xen ('%s'). Error: %s." |
1071 | 75bf3149 | Helga Velroyen | % (constants.XEN_CMD_XL, result.stderr)) |
1072 | 75bf3149 | Helga Velroyen | |
1073 | 65a6f9b7 | Michael Hanselmann | |
1074 | 931419e5 | Jose A. Lopes | def WriteXenConfigEvents(config, hvp): |
1075 | 931419e5 | Jose A. Lopes | config.write("on_poweroff = 'preserve'\n")
|
1076 | 931419e5 | Jose A. Lopes | if hvp[constants.HV_REBOOT_BEHAVIOR] == constants.INSTANCE_REBOOT_ALLOWED:
|
1077 | 931419e5 | Jose A. Lopes | config.write("on_reboot = 'restart'\n")
|
1078 | 931419e5 | Jose A. Lopes | else:
|
1079 | 931419e5 | Jose A. Lopes | config.write("on_reboot = 'destroy'\n")
|
1080 | 931419e5 | Jose A. Lopes | config.write("on_crash = 'restart'\n")
|
1081 | 931419e5 | Jose A. Lopes | |
1082 | 931419e5 | Jose A. Lopes | |
1083 | 65a6f9b7 | Michael Hanselmann | class XenPvmHypervisor(XenHypervisor): |
1084 | 65a6f9b7 | Michael Hanselmann | """Xen PVM hypervisor interface"""
|
1085 | 65a6f9b7 | Michael Hanselmann | |
1086 | 205ab586 | Iustin Pop | PARAMETERS = { |
1087 | 2f2dbb4b | Jun Futagawa | constants.HV_USE_BOOTLOADER: hv_base.NO_CHECK, |
1088 | 2f2dbb4b | Jun Futagawa | constants.HV_BOOTLOADER_PATH: hv_base.OPT_FILE_CHECK, |
1089 | 2f2dbb4b | Jun Futagawa | constants.HV_BOOTLOADER_ARGS: hv_base.NO_CHECK, |
1090 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.REQ_FILE_CHECK, |
1091 | 205ab586 | Iustin Pop | constants.HV_INITRD_PATH: hv_base.OPT_FILE_CHECK, |
1092 | 7adf7814 | René Nussbaumer | constants.HV_ROOT_PATH: hv_base.NO_CHECK, |
1093 | 205ab586 | Iustin Pop | constants.HV_KERNEL_ARGS: hv_base.NO_CHECK, |
1094 | e2d14329 | Andrea Spadaccini | constants.HV_MIGRATION_PORT: hv_base.REQ_NET_PORT_CHECK, |
1095 | 783a6c0b | Iustin Pop | constants.HV_MIGRATION_MODE: hv_base.MIGRATION_MODE_CHECK, |
1096 | 525011bc | Maciej Bliziński | # TODO: Add a check for the blockdev prefix (matching [a-z:] or similar).
|
1097 | 525011bc | Maciej Bliziński | constants.HV_BLOCKDEV_PREFIX: hv_base.NO_CHECK, |
1098 | 990ade2d | Stephen Shirley | constants.HV_REBOOT_BEHAVIOR: |
1099 | c4708267 | Tsachy Shacham | hv_base.ParamInSet(True, constants.REBOOT_BEHAVIORS),
|
1100 | c4708267 | Tsachy Shacham | constants.HV_CPU_MASK: hv_base.OPT_MULTI_CPU_MASK_CHECK, |
1101 | 2c368f28 | Guido Trotter | constants.HV_CPU_CAP: hv_base.OPT_NONNEGATIVE_INT_CHECK, |
1102 | 8bd977e9 | Sébastien Bocahu | constants.HV_CPU_WEIGHT: |
1103 | 8bd977e9 | Sébastien Bocahu | (False, lambda x: 0 < x < 65536, "invalid weight", None, None), |
1104 | 397b7844 | Dimitris Aragiorgis | constants.HV_VIF_SCRIPT: hv_base.OPT_FILE_CHECK, |
1105 | 740394bc | Helga Velroyen | constants.HV_XEN_CMD: |
1106 | 740394bc | Helga Velroyen | hv_base.ParamInSet(True, constants.KNOWN_XEN_COMMANDS),
|
1107 | 295ed29b | Santi Raffa | constants.HV_XEN_CPUID: hv_base.NO_CHECK, |
1108 | b5cad580 | Raffa Santi | constants.HV_SOUNDHW: hv_base.NO_CHECK, |
1109 | 205ab586 | Iustin Pop | } |
1110 | f48148c3 | Iustin Pop | |
1111 | c3d839f5 | Michael Hanselmann | def _GetConfig(self, instance, startup_memory, block_devices): |
1112 | 65a6f9b7 | Michael Hanselmann | """Write the Xen config file for the instance.
|
1113 | 65a6f9b7 | Michael Hanselmann |
|
1114 | 65a6f9b7 | Michael Hanselmann | """
|
1115 | a985b417 | Iustin Pop | hvp = instance.hvparams |
1116 | 65a6f9b7 | Michael Hanselmann | config = StringIO() |
1117 | 65a6f9b7 | Michael Hanselmann | config.write("# this is autogenerated by Ganeti, please do not edit\n#\n")
|
1118 | 65a6f9b7 | Michael Hanselmann | |
1119 | 2f2dbb4b | Jun Futagawa | # if bootloader is True, use bootloader instead of kernel and ramdisk
|
1120 | 2f2dbb4b | Jun Futagawa | # parameters.
|
1121 | 2f2dbb4b | Jun Futagawa | if hvp[constants.HV_USE_BOOTLOADER]:
|
1122 | 2f2dbb4b | Jun Futagawa | # bootloader handling
|
1123 | 2f2dbb4b | Jun Futagawa | bootloader_path = hvp[constants.HV_BOOTLOADER_PATH] |
1124 | 2f2dbb4b | Jun Futagawa | if bootloader_path:
|
1125 | 2f2dbb4b | Jun Futagawa | config.write("bootloader = '%s'\n" % bootloader_path)
|
1126 | 2f2dbb4b | Jun Futagawa | else:
|
1127 | 2f2dbb4b | Jun Futagawa | raise errors.HypervisorError("Bootloader enabled, but missing" |
1128 | 2f2dbb4b | Jun Futagawa | " bootloader path")
|
1129 | 65a6f9b7 | Michael Hanselmann | |
1130 | 2f2dbb4b | Jun Futagawa | bootloader_args = hvp[constants.HV_BOOTLOADER_ARGS] |
1131 | 2f2dbb4b | Jun Futagawa | if bootloader_args:
|
1132 | 2f2dbb4b | Jun Futagawa | config.write("bootargs = '%s'\n" % bootloader_args)
|
1133 | 2f2dbb4b | Jun Futagawa | else:
|
1134 | 2f2dbb4b | Jun Futagawa | # kernel handling
|
1135 | 2f2dbb4b | Jun Futagawa | kpath = hvp[constants.HV_KERNEL_PATH] |
1136 | 2f2dbb4b | Jun Futagawa | config.write("kernel = '%s'\n" % kpath)
|
1137 | 2f2dbb4b | Jun Futagawa | |
1138 | 2f2dbb4b | Jun Futagawa | # initrd handling
|
1139 | 2f2dbb4b | Jun Futagawa | initrd_path = hvp[constants.HV_INITRD_PATH] |
1140 | 2f2dbb4b | Jun Futagawa | if initrd_path:
|
1141 | 2f2dbb4b | Jun Futagawa | config.write("ramdisk = '%s'\n" % initrd_path)
|
1142 | 65a6f9b7 | Michael Hanselmann | |
1143 | 65a6f9b7 | Michael Hanselmann | # rest of the settings
|
1144 | 61eb1a46 | Guido Trotter | config.write("memory = %d\n" % startup_memory)
|
1145 | 80121c83 | Guido Trotter | config.write("maxmem = %d\n" % instance.beparams[constants.BE_MAXMEM])
|
1146 | 8b3fd458 | Iustin Pop | config.write("vcpus = %d\n" % instance.beparams[constants.BE_VCPUS])
|
1147 | 347fa0f1 | Michael Hanselmann | cpu_pinning = _CreateConfigCpus(hvp[constants.HV_CPU_MASK]) |
1148 | c4708267 | Tsachy Shacham | if cpu_pinning:
|
1149 | c4708267 | Tsachy Shacham | config.write("%s\n" % cpu_pinning)
|
1150 | 8bd977e9 | Sébastien Bocahu | cpu_cap = hvp[constants.HV_CPU_CAP] |
1151 | 8bd977e9 | Sébastien Bocahu | if cpu_cap:
|
1152 | 8bd977e9 | Sébastien Bocahu | config.write("cpu_cap=%d\n" % cpu_cap)
|
1153 | 8bd977e9 | Sébastien Bocahu | cpu_weight = hvp[constants.HV_CPU_WEIGHT] |
1154 | 8bd977e9 | Sébastien Bocahu | if cpu_weight:
|
1155 | 8bd977e9 | Sébastien Bocahu | config.write("cpu_weight=%d\n" % cpu_weight)
|
1156 | c4708267 | Tsachy Shacham | |
1157 | 65a6f9b7 | Michael Hanselmann | config.write("name = '%s'\n" % instance.name)
|
1158 | 65a6f9b7 | Michael Hanselmann | |
1159 | 65a6f9b7 | Michael Hanselmann | vif_data = [] |
1160 | 397b7844 | Dimitris Aragiorgis | for idx, nic in enumerate(instance.nics): |
1161 | 503b97a9 | Guido Trotter | nic_str = "mac=%s" % (nic.mac)
|
1162 | 65a6f9b7 | Michael Hanselmann | ip = getattr(nic, "ip", None) |
1163 | 65a6f9b7 | Michael Hanselmann | if ip is not None: |
1164 | 65a6f9b7 | Michael Hanselmann | nic_str += ", ip=%s" % ip
|
1165 | 503b97a9 | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
1166 | 503b97a9 | Guido Trotter | nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK]
|
1167 | f1f11cef | Sebastian Gebhard | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_OVS:
|
1168 | f1f11cef | Sebastian Gebhard | nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK]
|
1169 | f1f11cef | Sebastian Gebhard | if nic.nicparams[constants.NIC_VLAN]:
|
1170 | f1f11cef | Sebastian Gebhard | nic_str += "%s" % nic.nicparams[constants.NIC_VLAN]
|
1171 | 397b7844 | Dimitris Aragiorgis | if hvp[constants.HV_VIF_SCRIPT]:
|
1172 | 397b7844 | Dimitris Aragiorgis | nic_str += ", script=%s" % hvp[constants.HV_VIF_SCRIPT]
|
1173 | 0183a697 | Alessandro Cincaglini | vif_data.append("'%s'" % nic_str)
|
1174 | 2a3bbbaa | Dimitris Aragiorgis | self._WriteNICInfoFile(instance, idx, nic)
|
1175 | 65a6f9b7 | Michael Hanselmann | |
1176 | d0bb3f24 | Michael Hanselmann | disk_data = \ |
1177 | d0bb3f24 | Michael Hanselmann | _GetConfigFileDiskData(block_devices, hvp[constants.HV_BLOCKDEV_PREFIX]) |
1178 | 7ed85ffe | Iustin Pop | |
1179 | 65a6f9b7 | Michael Hanselmann | config.write("vif = [%s]\n" % ",".join(vif_data)) |
1180 | 7ed85ffe | Iustin Pop | config.write("disk = [%s]\n" % ",".join(disk_data)) |
1181 | 074ca009 | Guido Trotter | |
1182 | 7adf7814 | René Nussbaumer | if hvp[constants.HV_ROOT_PATH]:
|
1183 | 7adf7814 | René Nussbaumer | config.write("root = '%s'\n" % hvp[constants.HV_ROOT_PATH])
|
1184 | 931419e5 | Jose A. Lopes | |
1185 | 931419e5 | Jose A. Lopes | WriteXenConfigEvents(config, hvp) |
1186 | 07813a9e | Iustin Pop | config.write("extra = '%s'\n" % hvp[constants.HV_KERNEL_ARGS])
|
1187 | 73cd67f4 | Guido Trotter | |
1188 | 295ed29b | Santi Raffa | cpuid = hvp[constants.HV_XEN_CPUID] |
1189 | 295ed29b | Santi Raffa | if cpuid:
|
1190 | 295ed29b | Santi Raffa | config.write("cpuid = %s\n" % _QuoteCpuidField(cpuid))
|
1191 | 295ed29b | Santi Raffa | |
1192 | b5cad580 | Raffa Santi | if hvp[constants.HV_SOUNDHW]:
|
1193 | b5cad580 | Raffa Santi | config.write("soundhw = '%s'\n" % hvp[constants.HV_SOUNDHW])
|
1194 | b5cad580 | Raffa Santi | |
1195 | c3d839f5 | Michael Hanselmann | return config.getvalue()
|
1196 | 65a6f9b7 | Michael Hanselmann | |
1197 | 65a6f9b7 | Michael Hanselmann | |
1198 | 65a6f9b7 | Michael Hanselmann | class XenHvmHypervisor(XenHypervisor): |
1199 | 65a6f9b7 | Michael Hanselmann | """Xen HVM hypervisor interface"""
|
1200 | 65a6f9b7 | Michael Hanselmann | |
1201 | 69b99987 | Michael Hanselmann | ANCILLARY_FILES = XenHypervisor.ANCILLARY_FILES + [ |
1202 | 9d9bded1 | Michael Hanselmann | pathutils.VNC_PASSWORD_FILE, |
1203 | 69b99987 | Michael Hanselmann | ] |
1204 | 69ab2e12 | Guido Trotter | ANCILLARY_FILES_OPT = XenHypervisor.ANCILLARY_FILES_OPT + [ |
1205 | 9d9bded1 | Michael Hanselmann | pathutils.VNC_PASSWORD_FILE, |
1206 | 69ab2e12 | Guido Trotter | ] |
1207 | 3680f662 | Guido Trotter | |
1208 | 205ab586 | Iustin Pop | PARAMETERS = { |
1209 | 205ab586 | Iustin Pop | constants.HV_ACPI: hv_base.NO_CHECK, |
1210 | 016d04b3 | Michael Hanselmann | constants.HV_BOOT_ORDER: (True, ) +
|
1211 | 016d04b3 | Michael Hanselmann | (lambda x: x and len(x.strip("acdn")) == 0, |
1212 | 016d04b3 | Michael Hanselmann | "Invalid boot order specified, must be one or more of [acdn]",
|
1213 | 016d04b3 | Michael Hanselmann | None, None), |
1214 | 205ab586 | Iustin Pop | constants.HV_CDROM_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
1215 | 016d04b3 | Michael Hanselmann | constants.HV_DISK_TYPE: |
1216 | 016d04b3 | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_HVM_VALID_DISK_TYPES),
|
1217 | 016d04b3 | Michael Hanselmann | constants.HV_NIC_TYPE: |
1218 | 016d04b3 | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_HVM_VALID_NIC_TYPES),
|
1219 | 205ab586 | Iustin Pop | constants.HV_PAE: hv_base.NO_CHECK, |
1220 | 016d04b3 | Michael Hanselmann | constants.HV_VNC_BIND_ADDRESS: |
1221 | 8b312c1d | Manuel Franceschini | (False, netutils.IP4Address.IsValid,
|
1222 | 016d04b3 | Michael Hanselmann | "VNC bind address is not a valid IP address", None, None), |
1223 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.REQ_FILE_CHECK, |
1224 | 205ab586 | Iustin Pop | constants.HV_DEVICE_MODEL: hv_base.REQ_FILE_CHECK, |
1225 | 6e6bb8d5 | Guido Trotter | constants.HV_VNC_PASSWORD_FILE: hv_base.REQ_FILE_CHECK, |
1226 | e2d14329 | Andrea Spadaccini | constants.HV_MIGRATION_PORT: hv_base.REQ_NET_PORT_CHECK, |
1227 | 783a6c0b | Iustin Pop | constants.HV_MIGRATION_MODE: hv_base.MIGRATION_MODE_CHECK, |
1228 | 6b970cef | Jun Futagawa | constants.HV_USE_LOCALTIME: hv_base.NO_CHECK, |
1229 | e695efbf | Iustin Pop | # TODO: Add a check for the blockdev prefix (matching [a-z:] or similar).
|
1230 | e695efbf | Iustin Pop | constants.HV_BLOCKDEV_PREFIX: hv_base.NO_CHECK, |
1231 | 87f0aa48 | Jack | # Add PCI passthrough
|
1232 | 3891c95e | Bernardo Dal Seno | constants.HV_PASSTHROUGH: hv_base.NO_CHECK, |
1233 | 990ade2d | Stephen Shirley | constants.HV_REBOOT_BEHAVIOR: |
1234 | c4708267 | Tsachy Shacham | hv_base.ParamInSet(True, constants.REBOOT_BEHAVIORS),
|
1235 | c4708267 | Tsachy Shacham | constants.HV_CPU_MASK: hv_base.OPT_MULTI_CPU_MASK_CHECK, |
1236 | 8bd977e9 | Sébastien Bocahu | constants.HV_CPU_CAP: hv_base.NO_CHECK, |
1237 | 8bd977e9 | Sébastien Bocahu | constants.HV_CPU_WEIGHT: |
1238 | 8bd977e9 | Sébastien Bocahu | (False, lambda x: 0 < x < 65535, "invalid weight", None, None), |
1239 | 05440845 | Helga Velroyen | constants.HV_VIF_TYPE: |
1240 | 05440845 | Helga Velroyen | hv_base.ParamInSet(False, constants.HT_HVM_VALID_VIF_TYPES),
|
1241 | 397b7844 | Dimitris Aragiorgis | constants.HV_VIF_SCRIPT: hv_base.OPT_FILE_CHECK, |
1242 | ffc27116 | Thomas Thrainer | constants.HV_VIRIDIAN: hv_base.NO_CHECK, |
1243 | 740394bc | Helga Velroyen | constants.HV_XEN_CMD: |
1244 | 740394bc | Helga Velroyen | hv_base.ParamInSet(True, constants.KNOWN_XEN_COMMANDS),
|
1245 | 295ed29b | Santi Raffa | constants.HV_XEN_CPUID: hv_base.NO_CHECK, |
1246 | b5cad580 | Raffa Santi | constants.HV_SOUNDHW: hv_base.NO_CHECK, |
1247 | 205ab586 | Iustin Pop | } |
1248 | 09ea8710 | Iustin Pop | |
1249 | c3d839f5 | Michael Hanselmann | def _GetConfig(self, instance, startup_memory, block_devices): |
1250 | 65a6f9b7 | Michael Hanselmann | """Create a Xen 3.1 HVM config file.
|
1251 | 65a6f9b7 | Michael Hanselmann |
|
1252 | 65a6f9b7 | Michael Hanselmann | """
|
1253 | a985b417 | Iustin Pop | hvp = instance.hvparams |
1254 | a985b417 | Iustin Pop | |
1255 | 65a6f9b7 | Michael Hanselmann | config = StringIO() |
1256 | e2ee1cea | Iustin Pop | |
1257 | e2ee1cea | Iustin Pop | # kernel handling
|
1258 | e2ee1cea | Iustin Pop | kpath = hvp[constants.HV_KERNEL_PATH] |
1259 | e2ee1cea | Iustin Pop | config.write("kernel = '%s'\n" % kpath)
|
1260 | e2ee1cea | Iustin Pop | |
1261 | 65a6f9b7 | Michael Hanselmann | config.write("builder = 'hvm'\n")
|
1262 | 61eb1a46 | Guido Trotter | config.write("memory = %d\n" % startup_memory)
|
1263 | 80121c83 | Guido Trotter | config.write("maxmem = %d\n" % instance.beparams[constants.BE_MAXMEM])
|
1264 | 8b3fd458 | Iustin Pop | config.write("vcpus = %d\n" % instance.beparams[constants.BE_VCPUS])
|
1265 | 347fa0f1 | Michael Hanselmann | cpu_pinning = _CreateConfigCpus(hvp[constants.HV_CPU_MASK]) |
1266 | c4708267 | Tsachy Shacham | if cpu_pinning:
|
1267 | c4708267 | Tsachy Shacham | config.write("%s\n" % cpu_pinning)
|
1268 | 8bd977e9 | Sébastien Bocahu | cpu_cap = hvp[constants.HV_CPU_CAP] |
1269 | 8bd977e9 | Sébastien Bocahu | if cpu_cap:
|
1270 | 8bd977e9 | Sébastien Bocahu | config.write("cpu_cap=%d\n" % cpu_cap)
|
1271 | 8bd977e9 | Sébastien Bocahu | cpu_weight = hvp[constants.HV_CPU_WEIGHT] |
1272 | 8bd977e9 | Sébastien Bocahu | if cpu_weight:
|
1273 | 8bd977e9 | Sébastien Bocahu | config.write("cpu_weight=%d\n" % cpu_weight)
|
1274 | c4708267 | Tsachy Shacham | |
1275 | 65a6f9b7 | Michael Hanselmann | config.write("name = '%s'\n" % instance.name)
|
1276 | 09ea8710 | Iustin Pop | if hvp[constants.HV_PAE]:
|
1277 | a21dda8b | Iustin Pop | config.write("pae = 1\n")
|
1278 | a21dda8b | Iustin Pop | else:
|
1279 | a21dda8b | Iustin Pop | config.write("pae = 0\n")
|
1280 | 09ea8710 | Iustin Pop | if hvp[constants.HV_ACPI]:
|
1281 | a21dda8b | Iustin Pop | config.write("acpi = 1\n")
|
1282 | a21dda8b | Iustin Pop | else:
|
1283 | a21dda8b | Iustin Pop | config.write("acpi = 0\n")
|
1284 | ffc27116 | Thomas Thrainer | if hvp[constants.HV_VIRIDIAN]:
|
1285 | ffc27116 | Thomas Thrainer | config.write("viridian = 1\n")
|
1286 | ffc27116 | Thomas Thrainer | else:
|
1287 | ffc27116 | Thomas Thrainer | config.write("viridian = 0\n")
|
1288 | ffc27116 | Thomas Thrainer | |
1289 | 65a6f9b7 | Michael Hanselmann | config.write("apic = 1\n")
|
1290 | 09ea8710 | Iustin Pop | config.write("device_model = '%s'\n" % hvp[constants.HV_DEVICE_MODEL])
|
1291 | a985b417 | Iustin Pop | config.write("boot = '%s'\n" % hvp[constants.HV_BOOT_ORDER])
|
1292 | 65a6f9b7 | Michael Hanselmann | config.write("sdl = 0\n")
|
1293 | 97efde45 | Guido Trotter | config.write("usb = 1\n")
|
1294 | 97efde45 | Guido Trotter | config.write("usbdevice = 'tablet'\n")
|
1295 | 65a6f9b7 | Michael Hanselmann | config.write("vnc = 1\n")
|
1296 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_BIND_ADDRESS] is None: |
1297 | d0c11cf7 | Alexander Schreiber | config.write("vnclisten = '%s'\n" % constants.VNC_DEFAULT_BIND_ADDRESS)
|
1298 | d0c11cf7 | Alexander Schreiber | else:
|
1299 | 6b405598 | Guido Trotter | config.write("vnclisten = '%s'\n" % hvp[constants.HV_VNC_BIND_ADDRESS])
|
1300 | 65a6f9b7 | Michael Hanselmann | |
1301 | 377d74c9 | Guido Trotter | if instance.network_port > constants.VNC_BASE_PORT:
|
1302 | 377d74c9 | Guido Trotter | display = instance.network_port - constants.VNC_BASE_PORT |
1303 | 65a6f9b7 | Michael Hanselmann | config.write("vncdisplay = %s\n" % display)
|
1304 | 65a6f9b7 | Michael Hanselmann | config.write("vncunused = 0\n")
|
1305 | 65a6f9b7 | Michael Hanselmann | else:
|
1306 | 65a6f9b7 | Michael Hanselmann | config.write("# vncdisplay = 1\n")
|
1307 | 65a6f9b7 | Michael Hanselmann | config.write("vncunused = 1\n")
|
1308 | 65a6f9b7 | Michael Hanselmann | |
1309 | 6e6bb8d5 | Guido Trotter | vnc_pwd_file = hvp[constants.HV_VNC_PASSWORD_FILE] |
1310 | 65a6f9b7 | Michael Hanselmann | try:
|
1311 | 6e6bb8d5 | Guido Trotter | password = utils.ReadFile(vnc_pwd_file) |
1312 | 78f66a17 | Guido Trotter | except EnvironmentError, err: |
1313 | 78f66a17 | Guido Trotter | raise errors.HypervisorError("Failed to open VNC password file %s: %s" % |
1314 | 6e6bb8d5 | Guido Trotter | (vnc_pwd_file, err)) |
1315 | 65a6f9b7 | Michael Hanselmann | |
1316 | 65a6f9b7 | Michael Hanselmann | config.write("vncpasswd = '%s'\n" % password.rstrip())
|
1317 | 65a6f9b7 | Michael Hanselmann | |
1318 | 65a6f9b7 | Michael Hanselmann | config.write("serial = 'pty'\n")
|
1319 | 6b970cef | Jun Futagawa | if hvp[constants.HV_USE_LOCALTIME]:
|
1320 | 6b970cef | Jun Futagawa | config.write("localtime = 1\n")
|
1321 | 65a6f9b7 | Michael Hanselmann | |
1322 | 65a6f9b7 | Michael Hanselmann | vif_data = [] |
1323 | 05440845 | Helga Velroyen | # Note: what is called 'nic_type' here, is used as value for the xen nic
|
1324 | 05440845 | Helga Velroyen | # vif config parameter 'model'. For the xen nic vif parameter 'type', we use
|
1325 | 05440845 | Helga Velroyen | # the 'vif_type' to avoid a clash of notation.
|
1326 | a985b417 | Iustin Pop | nic_type = hvp[constants.HV_NIC_TYPE] |
1327 | 05440845 | Helga Velroyen | |
1328 | f48148c3 | Iustin Pop | if nic_type is None: |
1329 | 05440845 | Helga Velroyen | vif_type_str = ""
|
1330 | 05440845 | Helga Velroyen | if hvp[constants.HV_VIF_TYPE]:
|
1331 | 05440845 | Helga Velroyen | vif_type_str = ", type=%s" % hvp[constants.HV_VIF_TYPE]
|
1332 | f48148c3 | Iustin Pop | # ensure old instances don't change
|
1333 | 05440845 | Helga Velroyen | nic_type_str = vif_type_str |
1334 | d08f6067 | Guido Trotter | elif nic_type == constants.HT_NIC_PARAVIRTUAL:
|
1335 | f48148c3 | Iustin Pop | nic_type_str = ", type=paravirtualized"
|
1336 | f48148c3 | Iustin Pop | else:
|
1337 | 05440845 | Helga Velroyen | # parameter 'model' is only valid with type 'ioemu'
|
1338 | 05440845 | Helga Velroyen | nic_type_str = ", model=%s, type=%s" % \
|
1339 | 05440845 | Helga Velroyen | (nic_type, constants.HT_HVM_VIF_IOEMU) |
1340 | 397b7844 | Dimitris Aragiorgis | for idx, nic in enumerate(instance.nics): |
1341 | 503b97a9 | Guido Trotter | nic_str = "mac=%s%s" % (nic.mac, nic_type_str)
|
1342 | 65a6f9b7 | Michael Hanselmann | ip = getattr(nic, "ip", None) |
1343 | 65a6f9b7 | Michael Hanselmann | if ip is not None: |
1344 | 65a6f9b7 | Michael Hanselmann | nic_str += ", ip=%s" % ip
|
1345 | 503b97a9 | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
1346 | 503b97a9 | Guido Trotter | nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK]
|
1347 | 397b7844 | Dimitris Aragiorgis | if hvp[constants.HV_VIF_SCRIPT]:
|
1348 | 397b7844 | Dimitris Aragiorgis | nic_str += ", script=%s" % hvp[constants.HV_VIF_SCRIPT]
|
1349 | 0183a697 | Alessandro Cincaglini | vif_data.append("'%s'" % nic_str)
|
1350 | 2a3bbbaa | Dimitris Aragiorgis | self._WriteNICInfoFile(instance, idx, nic)
|
1351 | 65a6f9b7 | Michael Hanselmann | |
1352 | 65a6f9b7 | Michael Hanselmann | config.write("vif = [%s]\n" % ",".join(vif_data)) |
1353 | 525011bc | Maciej Bliziński | |
1354 | d0bb3f24 | Michael Hanselmann | disk_data = \ |
1355 | d0bb3f24 | Michael Hanselmann | _GetConfigFileDiskData(block_devices, hvp[constants.HV_BLOCKDEV_PREFIX]) |
1356 | 525011bc | Maciej Bliziński | |
1357 | a985b417 | Iustin Pop | iso_path = hvp[constants.HV_CDROM_IMAGE_PATH] |
1358 | f48148c3 | Iustin Pop | if iso_path:
|
1359 | f48148c3 | Iustin Pop | iso = "'file:%s,hdc:cdrom,r'" % iso_path
|
1360 | a21dda8b | Iustin Pop | disk_data.append(iso) |
1361 | a21dda8b | Iustin Pop | |
1362 | a21dda8b | Iustin Pop | config.write("disk = [%s]\n" % (",".join(disk_data))) |
1363 | 87f0aa48 | Jack | # Add PCI passthrough
|
1364 | 87f0aa48 | Jack | pci_pass_arr = [] |
1365 | 87f0aa48 | Jack | pci_pass = hvp[constants.HV_PASSTHROUGH] |
1366 | 87f0aa48 | Jack | if pci_pass:
|
1367 | 3891c95e | Bernardo Dal Seno | pci_pass_arr = pci_pass.split(";")
|
1368 | 3891c95e | Bernardo Dal Seno | config.write("pci = %s\n" % pci_pass_arr)
|
1369 | 931419e5 | Jose A. Lopes | |
1370 | 931419e5 | Jose A. Lopes | WriteXenConfigEvents(config, hvp) |
1371 | 73cd67f4 | Guido Trotter | |
1372 | 295ed29b | Santi Raffa | cpuid = hvp[constants.HV_XEN_CPUID] |
1373 | 295ed29b | Santi Raffa | if cpuid:
|
1374 | 295ed29b | Santi Raffa | config.write("cpuid = %s\n" % _QuoteCpuidField(cpuid))
|
1375 | 295ed29b | Santi Raffa | |
1376 | b5cad580 | Raffa Santi | if hvp[constants.HV_SOUNDHW]:
|
1377 | b5cad580 | Raffa Santi | config.write("soundhw = '%s'\n" % hvp[constants.HV_SOUNDHW])
|
1378 | b5cad580 | Raffa Santi | |
1379 | c3d839f5 | Michael Hanselmann | return config.getvalue() |