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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | a8083063 | Iustin Pop | """Module dealing with command line parsing"""
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23 | a8083063 | Iustin Pop | |
24 | a8083063 | Iustin Pop | |
25 | a8083063 | Iustin Pop | import sys |
26 | a8083063 | Iustin Pop | import textwrap |
27 | a8083063 | Iustin Pop | import os.path |
28 | a8083063 | Iustin Pop | import copy |
29 | 685ee993 | Iustin Pop | import time |
30 | 46fbdd04 | Iustin Pop | import logging |
31 | 73702ee7 | Iustin Pop | from cStringIO import StringIO |
32 | a8083063 | Iustin Pop | |
33 | a8083063 | Iustin Pop | from ganeti import utils |
34 | a8083063 | Iustin Pop | from ganeti import errors |
35 | a8083063 | Iustin Pop | from ganeti import constants |
36 | 846baef9 | Iustin Pop | from ganeti import opcodes |
37 | ceab32dd | Iustin Pop | from ganeti import luxi |
38 | b33e986b | Iustin Pop | from ganeti import ssconf |
39 | 4331f6cd | Michael Hanselmann | from ganeti import rpc |
40 | a8083063 | Iustin Pop | |
41 | c38c44ad | Michael Hanselmann | from optparse import (OptionParser, TitledHelpFormatter, |
42 | 38206f3c | Iustin Pop | Option, OptionValueError) |
43 | a8083063 | Iustin Pop | |
44 | 03298ebe | Michael Hanselmann | |
45 | 4abc4f1e | Iustin Pop | __all__ = [ |
46 | 4abc4f1e | Iustin Pop | # Command line options
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47 | 087ed2ed | Iustin Pop | "BACKEND_OPT",
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48 | 4abc4f1e | Iustin Pop | "CONFIRM_OPT",
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49 | 4abc4f1e | Iustin Pop | "DEBUG_OPT",
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50 | a0c9776a | Iustin Pop | "DEBUG_SIMERR_OPT",
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51 | 4f365444 | Iustin Pop | "DISK_TEMPLATE_OPT",
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52 | e3876ccb | Iustin Pop | "DISK_OPT",
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53 | 4abc4f1e | Iustin Pop | "FIELDS_OPT",
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54 | 4a25828c | Iustin Pop | "FILESTORE_DIR_OPT",
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55 | 0f87c43e | Iustin Pop | "FILESTORE_DRIVER_OPT",
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56 | 073271f6 | Iustin Pop | "HVLIST_OPT",
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57 | 48f212d7 | Iustin Pop | "HVOPTS_OPT",
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58 | 236fd9c4 | Iustin Pop | "HYPERVISOR_OPT",
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59 | 4eb62659 | Iustin Pop | "IALLOCATOR_OPT",
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60 | 4abc4f1e | Iustin Pop | "FORCE_OPT",
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61 | 7d3a9fab | Iustin Pop | "NET_OPT",
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62 | 4abc4f1e | Iustin Pop | "NOHDR_OPT",
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63 | 91e0748c | Iustin Pop | "NOIPCHECK_OPT",
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64 | 26023ecd | Iustin Pop | "NONICS_OPT",
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65 | 3f75b4f3 | Iustin Pop | "NWSYNC_OPT",
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66 | d3ed23ff | Iustin Pop | "OS_OPT",
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67 | 4abc4f1e | Iustin Pop | "SEP_OPT",
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68 | 4abc4f1e | Iustin Pop | "SUBMIT_OPT",
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69 | 4abc4f1e | Iustin Pop | "SYNC_OPT",
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70 | 4abc4f1e | Iustin Pop | "TAG_SRC_OPT",
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71 | 4abc4f1e | Iustin Pop | "USEUNITS_OPT",
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72 | 9cdb9578 | Iustin Pop | "VERBOSE_OPT",
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73 | 4abc4f1e | Iustin Pop | # Generic functions for CLI programs
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74 | 4abc4f1e | Iustin Pop | "GenericMain",
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75 | 4abc4f1e | Iustin Pop | "GetClient",
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76 | 4abc4f1e | Iustin Pop | "GetOnlineNodes",
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77 | 4abc4f1e | Iustin Pop | "JobExecutor",
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78 | 4abc4f1e | Iustin Pop | "JobSubmittedException",
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79 | 4abc4f1e | Iustin Pop | "ParseTimespec",
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80 | 4abc4f1e | Iustin Pop | "SubmitOpCode",
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81 | 4abc4f1e | Iustin Pop | "SubmitOrSend",
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82 | 4abc4f1e | Iustin Pop | "UsesRPC",
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83 | 4abc4f1e | Iustin Pop | # Formatting functions
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84 | 4abc4f1e | Iustin Pop | "ToStderr", "ToStdout", |
85 | 4abc4f1e | Iustin Pop | "FormatError",
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86 | 4abc4f1e | Iustin Pop | "GenerateTable",
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87 | 4abc4f1e | Iustin Pop | "AskUser",
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88 | 4abc4f1e | Iustin Pop | "FormatTimestamp",
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89 | 4abc4f1e | Iustin Pop | # Tags functions
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90 | 4abc4f1e | Iustin Pop | "ListTags",
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91 | 4abc4f1e | Iustin Pop | "AddTags",
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92 | 4abc4f1e | Iustin Pop | "RemoveTags",
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93 | 4abc4f1e | Iustin Pop | # command line options support infrastructure
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94 | 4abc4f1e | Iustin Pop | "ARGS_MANY_INSTANCES",
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95 | 4abc4f1e | Iustin Pop | "ARGS_MANY_NODES",
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96 | 4abc4f1e | Iustin Pop | "ARGS_NONE",
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97 | 4abc4f1e | Iustin Pop | "ARGS_ONE_INSTANCE",
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98 | 4abc4f1e | Iustin Pop | "ARGS_ONE_NODE",
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99 | 4abc4f1e | Iustin Pop | "ArgChoice",
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100 | 4abc4f1e | Iustin Pop | "ArgCommand",
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101 | 4abc4f1e | Iustin Pop | "ArgFile",
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102 | 4abc4f1e | Iustin Pop | "ArgHost",
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103 | 4abc4f1e | Iustin Pop | "ArgInstance",
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104 | 4abc4f1e | Iustin Pop | "ArgJobId",
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105 | 4abc4f1e | Iustin Pop | "ArgNode",
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106 | 4abc4f1e | Iustin Pop | "ArgSuggest",
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107 | 4abc4f1e | Iustin Pop | "ArgUnknown",
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108 | 4abc4f1e | Iustin Pop | "OPT_COMPL_INST_ADD_NODES",
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109 | 4abc4f1e | Iustin Pop | "OPT_COMPL_MANY_NODES",
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110 | 4abc4f1e | Iustin Pop | "OPT_COMPL_ONE_IALLOCATOR",
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111 | 4abc4f1e | Iustin Pop | "OPT_COMPL_ONE_INSTANCE",
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112 | 4abc4f1e | Iustin Pop | "OPT_COMPL_ONE_NODE",
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113 | 4abc4f1e | Iustin Pop | "OPT_COMPL_ONE_OS",
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114 | 4abc4f1e | Iustin Pop | "cli_option",
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115 | 4abc4f1e | Iustin Pop | "SplitNodeOption",
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116 | 4abc4f1e | Iustin Pop | ] |
117 | 846baef9 | Iustin Pop | |
118 | 8b46606c | Guido Trotter | NO_PREFIX = "no_"
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119 | 8b46606c | Guido Trotter | UN_PREFIX = "-"
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120 | 846baef9 | Iustin Pop | |
121 | 03298ebe | Michael Hanselmann | |
122 | 863d7f46 | Michael Hanselmann | class _Argument: |
123 | dff85078 | Michael Hanselmann | def __init__(self, min=0, max=None): |
124 | 863d7f46 | Michael Hanselmann | self.min = min |
125 | 863d7f46 | Michael Hanselmann | self.max = max |
126 | 863d7f46 | Michael Hanselmann | |
127 | 863d7f46 | Michael Hanselmann | def __repr__(self): |
128 | 863d7f46 | Michael Hanselmann | return ("<%s min=%s max=%s>" % |
129 | 863d7f46 | Michael Hanselmann | (self.__class__.__name__, self.min, self.max)) |
130 | 863d7f46 | Michael Hanselmann | |
131 | 863d7f46 | Michael Hanselmann | |
132 | 863d7f46 | Michael Hanselmann | class ArgSuggest(_Argument): |
133 | 863d7f46 | Michael Hanselmann | """Suggesting argument.
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134 | 863d7f46 | Michael Hanselmann |
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135 | 863d7f46 | Michael Hanselmann | Value can be any of the ones passed to the constructor.
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136 | 863d7f46 | Michael Hanselmann |
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137 | 863d7f46 | Michael Hanselmann | """
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138 | 863d7f46 | Michael Hanselmann | def __init__(self, min=0, max=None, choices=None): |
139 | 863d7f46 | Michael Hanselmann | _Argument.__init__(self, min=min, max=max) |
140 | 863d7f46 | Michael Hanselmann | self.choices = choices
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141 | 863d7f46 | Michael Hanselmann | |
142 | 863d7f46 | Michael Hanselmann | def __repr__(self): |
143 | 863d7f46 | Michael Hanselmann | return ("<%s min=%s max=%s choices=%r>" % |
144 | 863d7f46 | Michael Hanselmann | (self.__class__.__name__, self.min, self.max, self.choices)) |
145 | 863d7f46 | Michael Hanselmann | |
146 | 863d7f46 | Michael Hanselmann | |
147 | 863d7f46 | Michael Hanselmann | class ArgChoice(ArgSuggest): |
148 | 863d7f46 | Michael Hanselmann | """Choice argument.
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149 | 863d7f46 | Michael Hanselmann |
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150 | 863d7f46 | Michael Hanselmann | Value can be any of the ones passed to the constructor. Like L{ArgSuggest},
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151 | 863d7f46 | Michael Hanselmann | but value must be one of the choices.
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152 | 863d7f46 | Michael Hanselmann |
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153 | 863d7f46 | Michael Hanselmann | """
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154 | 863d7f46 | Michael Hanselmann | |
155 | 863d7f46 | Michael Hanselmann | |
156 | 863d7f46 | Michael Hanselmann | class ArgUnknown(_Argument): |
157 | 863d7f46 | Michael Hanselmann | """Unknown argument to program (e.g. determined at runtime).
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158 | 863d7f46 | Michael Hanselmann |
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159 | 863d7f46 | Michael Hanselmann | """
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160 | 863d7f46 | Michael Hanselmann | |
161 | 863d7f46 | Michael Hanselmann | |
162 | 863d7f46 | Michael Hanselmann | class ArgInstance(_Argument): |
163 | 863d7f46 | Michael Hanselmann | """Instances argument.
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164 | 863d7f46 | Michael Hanselmann |
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165 | 863d7f46 | Michael Hanselmann | """
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166 | 863d7f46 | Michael Hanselmann | |
167 | 863d7f46 | Michael Hanselmann | |
168 | 863d7f46 | Michael Hanselmann | class ArgNode(_Argument): |
169 | 863d7f46 | Michael Hanselmann | """Node argument.
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170 | 863d7f46 | Michael Hanselmann |
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171 | 863d7f46 | Michael Hanselmann | """
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172 | 863d7f46 | Michael Hanselmann | |
173 | 863d7f46 | Michael Hanselmann | class ArgJobId(_Argument): |
174 | 863d7f46 | Michael Hanselmann | """Job ID argument.
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175 | 863d7f46 | Michael Hanselmann |
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176 | 863d7f46 | Michael Hanselmann | """
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177 | 863d7f46 | Michael Hanselmann | |
178 | 863d7f46 | Michael Hanselmann | |
179 | 863d7f46 | Michael Hanselmann | class ArgFile(_Argument): |
180 | 863d7f46 | Michael Hanselmann | """File path argument.
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181 | 863d7f46 | Michael Hanselmann |
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182 | 863d7f46 | Michael Hanselmann | """
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183 | 863d7f46 | Michael Hanselmann | |
184 | 863d7f46 | Michael Hanselmann | |
185 | 863d7f46 | Michael Hanselmann | class ArgCommand(_Argument): |
186 | 863d7f46 | Michael Hanselmann | """Command argument.
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187 | 863d7f46 | Michael Hanselmann |
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188 | 863d7f46 | Michael Hanselmann | """
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189 | 863d7f46 | Michael Hanselmann | |
190 | 863d7f46 | Michael Hanselmann | |
191 | 83ec7961 | Michael Hanselmann | class ArgHost(_Argument): |
192 | 83ec7961 | Michael Hanselmann | """Host argument.
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193 | 83ec7961 | Michael Hanselmann |
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194 | 83ec7961 | Michael Hanselmann | """
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195 | 83ec7961 | Michael Hanselmann | |
196 | 83ec7961 | Michael Hanselmann | |
197 | 4a265c08 | Michael Hanselmann | ARGS_NONE = [] |
198 | 4a265c08 | Michael Hanselmann | ARGS_MANY_INSTANCES = [ArgInstance()] |
199 | 4a265c08 | Michael Hanselmann | ARGS_MANY_NODES = [ArgNode()] |
200 | 4a265c08 | Michael Hanselmann | ARGS_ONE_INSTANCE = [ArgInstance(min=1, max=1)] |
201 | 4a265c08 | Michael Hanselmann | ARGS_ONE_NODE = [ArgNode(min=1, max=1)] |
202 | 4a265c08 | Michael Hanselmann | |
203 | 4a265c08 | Michael Hanselmann | |
204 | 73b90123 | Michael Hanselmann | |
205 | 846baef9 | Iustin Pop | def _ExtractTagsObject(opts, args): |
206 | 846baef9 | Iustin Pop | """Extract the tag type object.
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207 | 846baef9 | Iustin Pop |
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208 | 846baef9 | Iustin Pop | Note that this function will modify its args parameter.
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209 | 846baef9 | Iustin Pop |
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210 | 846baef9 | Iustin Pop | """
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211 | 846baef9 | Iustin Pop | if not hasattr(opts, "tag_type"): |
212 | 846baef9 | Iustin Pop | raise errors.ProgrammerError("tag_type not passed to _ExtractTagsObject") |
213 | 846baef9 | Iustin Pop | kind = opts.tag_type |
214 | 846baef9 | Iustin Pop | if kind == constants.TAG_CLUSTER:
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215 | 846baef9 | Iustin Pop | retval = kind, kind |
216 | 846baef9 | Iustin Pop | elif kind == constants.TAG_NODE or kind == constants.TAG_INSTANCE: |
217 | 846baef9 | Iustin Pop | if not args: |
218 | 0c434948 | Iustin Pop | raise errors.OpPrereqError("no arguments passed to the command") |
219 | 846baef9 | Iustin Pop | name = args.pop(0)
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220 | 846baef9 | Iustin Pop | retval = kind, name |
221 | 846baef9 | Iustin Pop | else:
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222 | 846baef9 | Iustin Pop | raise errors.ProgrammerError("Unhandled tag type '%s'" % kind) |
223 | 846baef9 | Iustin Pop | return retval
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224 | 846baef9 | Iustin Pop | |
225 | 846baef9 | Iustin Pop | |
226 | 810c50b7 | Iustin Pop | def _ExtendTags(opts, args): |
227 | 810c50b7 | Iustin Pop | """Extend the args if a source file has been given.
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228 | 810c50b7 | Iustin Pop |
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229 | 810c50b7 | Iustin Pop | This function will extend the tags with the contents of the file
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230 | 810c50b7 | Iustin Pop | passed in the 'tags_source' attribute of the opts parameter. A file
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231 | 810c50b7 | Iustin Pop | named '-' will be replaced by stdin.
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232 | 810c50b7 | Iustin Pop |
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233 | 810c50b7 | Iustin Pop | """
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234 | 810c50b7 | Iustin Pop | fname = opts.tags_source |
235 | 810c50b7 | Iustin Pop | if fname is None: |
236 | 810c50b7 | Iustin Pop | return
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237 | 810c50b7 | Iustin Pop | if fname == "-": |
238 | 810c50b7 | Iustin Pop | new_fh = sys.stdin |
239 | 810c50b7 | Iustin Pop | else:
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240 | 810c50b7 | Iustin Pop | new_fh = open(fname, "r") |
241 | 810c50b7 | Iustin Pop | new_data = [] |
242 | 810c50b7 | Iustin Pop | try:
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243 | 810c50b7 | Iustin Pop | # we don't use the nice 'new_data = [line.strip() for line in fh]'
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244 | 810c50b7 | Iustin Pop | # because of python bug 1633941
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245 | 810c50b7 | Iustin Pop | while True: |
246 | 810c50b7 | Iustin Pop | line = new_fh.readline() |
247 | 810c50b7 | Iustin Pop | if not line: |
248 | 810c50b7 | Iustin Pop | break
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249 | 810c50b7 | Iustin Pop | new_data.append(line.strip()) |
250 | 810c50b7 | Iustin Pop | finally:
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251 | 810c50b7 | Iustin Pop | new_fh.close() |
252 | 810c50b7 | Iustin Pop | args.extend(new_data) |
253 | 810c50b7 | Iustin Pop | |
254 | 810c50b7 | Iustin Pop | |
255 | 846baef9 | Iustin Pop | def ListTags(opts, args): |
256 | 846baef9 | Iustin Pop | """List the tags on a given object.
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257 | 846baef9 | Iustin Pop |
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258 | 846baef9 | Iustin Pop | This is a generic implementation that knows how to deal with all
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259 | 846baef9 | Iustin Pop | three cases of tag objects (cluster, node, instance). The opts
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260 | 846baef9 | Iustin Pop | argument is expected to contain a tag_type field denoting what
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261 | 846baef9 | Iustin Pop | object type we work on.
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262 | 846baef9 | Iustin Pop |
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263 | 846baef9 | Iustin Pop | """
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264 | 846baef9 | Iustin Pop | kind, name = _ExtractTagsObject(opts, args) |
265 | 846baef9 | Iustin Pop | op = opcodes.OpGetTags(kind=kind, name=name) |
266 | 846baef9 | Iustin Pop | result = SubmitOpCode(op) |
267 | 846baef9 | Iustin Pop | result = list(result)
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268 | 846baef9 | Iustin Pop | result.sort() |
269 | 846baef9 | Iustin Pop | for tag in result: |
270 | 03298ebe | Michael Hanselmann | ToStdout(tag) |
271 | 846baef9 | Iustin Pop | |
272 | 846baef9 | Iustin Pop | |
273 | 846baef9 | Iustin Pop | def AddTags(opts, args): |
274 | 846baef9 | Iustin Pop | """Add tags on a given object.
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275 | 846baef9 | Iustin Pop |
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276 | 846baef9 | Iustin Pop | This is a generic implementation that knows how to deal with all
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277 | 846baef9 | Iustin Pop | three cases of tag objects (cluster, node, instance). The opts
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278 | 846baef9 | Iustin Pop | argument is expected to contain a tag_type field denoting what
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279 | 846baef9 | Iustin Pop | object type we work on.
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280 | 846baef9 | Iustin Pop |
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281 | 846baef9 | Iustin Pop | """
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282 | 846baef9 | Iustin Pop | kind, name = _ExtractTagsObject(opts, args) |
283 | 810c50b7 | Iustin Pop | _ExtendTags(opts, args) |
284 | 846baef9 | Iustin Pop | if not args: |
285 | 846baef9 | Iustin Pop | raise errors.OpPrereqError("No tags to be added") |
286 | 846baef9 | Iustin Pop | op = opcodes.OpAddTags(kind=kind, name=name, tags=args) |
287 | 846baef9 | Iustin Pop | SubmitOpCode(op) |
288 | 846baef9 | Iustin Pop | |
289 | 846baef9 | Iustin Pop | |
290 | 846baef9 | Iustin Pop | def RemoveTags(opts, args): |
291 | 846baef9 | Iustin Pop | """Remove tags from a given object.
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292 | 846baef9 | Iustin Pop |
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293 | 846baef9 | Iustin Pop | This is a generic implementation that knows how to deal with all
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294 | 846baef9 | Iustin Pop | three cases of tag objects (cluster, node, instance). The opts
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295 | 846baef9 | Iustin Pop | argument is expected to contain a tag_type field denoting what
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296 | 846baef9 | Iustin Pop | object type we work on.
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297 | 846baef9 | Iustin Pop |
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298 | 846baef9 | Iustin Pop | """
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299 | 846baef9 | Iustin Pop | kind, name = _ExtractTagsObject(opts, args) |
300 | 810c50b7 | Iustin Pop | _ExtendTags(opts, args) |
301 | 846baef9 | Iustin Pop | if not args: |
302 | 846baef9 | Iustin Pop | raise errors.OpPrereqError("No tags to be removed") |
303 | 846baef9 | Iustin Pop | op = opcodes.OpDelTags(kind=kind, name=name, tags=args) |
304 | 846baef9 | Iustin Pop | SubmitOpCode(op) |
305 | 846baef9 | Iustin Pop | |
306 | a8083063 | Iustin Pop | |
307 | a8083063 | Iustin Pop | def check_unit(option, opt, value): |
308 | 65fe4693 | Iustin Pop | """OptParsers custom converter for units.
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309 | 65fe4693 | Iustin Pop |
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310 | 65fe4693 | Iustin Pop | """
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311 | a8083063 | Iustin Pop | try:
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312 | a8083063 | Iustin Pop | return utils.ParseUnit(value)
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313 | a8083063 | Iustin Pop | except errors.UnitParseError, err:
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314 | 3ecf6786 | Iustin Pop | raise OptionValueError("option %s: %s" % (opt, err)) |
315 | a8083063 | Iustin Pop | |
316 | a8083063 | Iustin Pop | |
317 | a8469393 | Iustin Pop | def _SplitKeyVal(opt, data): |
318 | a8469393 | Iustin Pop | """Convert a KeyVal string into a dict.
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319 | a8469393 | Iustin Pop |
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320 | a8469393 | Iustin Pop | This function will convert a key=val[,...] string into a dict. Empty
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321 | a8469393 | Iustin Pop | values will be converted specially: keys which have the prefix 'no_'
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322 | a8469393 | Iustin Pop | will have the value=False and the prefix stripped, the others will
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323 | a8469393 | Iustin Pop | have value=True.
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324 | a8469393 | Iustin Pop |
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325 | a8469393 | Iustin Pop | @type opt: string
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326 | a8469393 | Iustin Pop | @param opt: a string holding the option name for which we process the
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327 | a8469393 | Iustin Pop | data, used in building error messages
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328 | a8469393 | Iustin Pop | @type data: string
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329 | a8469393 | Iustin Pop | @param data: a string of the format key=val,key=val,...
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330 | a8469393 | Iustin Pop | @rtype: dict
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331 | a8469393 | Iustin Pop | @return: {key=val, key=val}
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332 | a8469393 | Iustin Pop | @raises errors.ParameterError: if there are duplicate keys
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333 | a8469393 | Iustin Pop |
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334 | a8469393 | Iustin Pop | """
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335 | a8469393 | Iustin Pop | kv_dict = {} |
336 | 4f31882e | Guido Trotter | if data:
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337 | 4f31882e | Guido Trotter | for elem in data.split(","): |
338 | 4f31882e | Guido Trotter | if "=" in elem: |
339 | 4f31882e | Guido Trotter | key, val = elem.split("=", 1) |
340 | a8469393 | Iustin Pop | else:
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341 | 4f31882e | Guido Trotter | if elem.startswith(NO_PREFIX):
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342 | 4f31882e | Guido Trotter | key, val = elem[len(NO_PREFIX):], False |
343 | 4f31882e | Guido Trotter | elif elem.startswith(UN_PREFIX):
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344 | 4f31882e | Guido Trotter | key, val = elem[len(UN_PREFIX):], None |
345 | 4f31882e | Guido Trotter | else:
|
346 | 4f31882e | Guido Trotter | key, val = elem, True
|
347 | 4f31882e | Guido Trotter | if key in kv_dict: |
348 | 4f31882e | Guido Trotter | raise errors.ParameterError("Duplicate key '%s' in option %s" % |
349 | 4f31882e | Guido Trotter | (key, opt)) |
350 | 4f31882e | Guido Trotter | kv_dict[key] = val |
351 | a8469393 | Iustin Pop | return kv_dict
|
352 | a8469393 | Iustin Pop | |
353 | a8469393 | Iustin Pop | |
354 | a8469393 | Iustin Pop | def check_ident_key_val(option, opt, value): |
355 | 552c8dff | Michael Hanselmann | """Custom parser for ident:key=val,key=val options.
|
356 | 552c8dff | Michael Hanselmann |
|
357 | 552c8dff | Michael Hanselmann | This will store the parsed values as a tuple (ident, {key: val}). As such,
|
358 | 552c8dff | Michael Hanselmann | multiple uses of this option via action=append is possible.
|
359 | a8469393 | Iustin Pop |
|
360 | a8469393 | Iustin Pop | """
|
361 | a8469393 | Iustin Pop | if ":" not in value: |
362 | 8b46606c | Guido Trotter | ident, rest = value, ''
|
363 | a8469393 | Iustin Pop | else:
|
364 | a8469393 | Iustin Pop | ident, rest = value.split(":", 1) |
365 | 8b46606c | Guido Trotter | |
366 | 8b46606c | Guido Trotter | if ident.startswith(NO_PREFIX):
|
367 | 8b46606c | Guido Trotter | if rest:
|
368 | 8b46606c | Guido Trotter | msg = "Cannot pass options when removing parameter groups: %s" % value
|
369 | 8b46606c | Guido Trotter | raise errors.ParameterError(msg)
|
370 | 8b46606c | Guido Trotter | retval = (ident[len(NO_PREFIX):], False) |
371 | 8b46606c | Guido Trotter | elif ident.startswith(UN_PREFIX):
|
372 | 8b46606c | Guido Trotter | if rest:
|
373 | 8b46606c | Guido Trotter | msg = "Cannot pass options when removing parameter groups: %s" % value
|
374 | 8b46606c | Guido Trotter | raise errors.ParameterError(msg)
|
375 | 8b46606c | Guido Trotter | retval = (ident[len(UN_PREFIX):], None) |
376 | 8b46606c | Guido Trotter | else:
|
377 | a8469393 | Iustin Pop | kv_dict = _SplitKeyVal(opt, rest) |
378 | a8469393 | Iustin Pop | retval = (ident, kv_dict) |
379 | a8469393 | Iustin Pop | return retval
|
380 | a8469393 | Iustin Pop | |
381 | a8469393 | Iustin Pop | |
382 | a8469393 | Iustin Pop | def check_key_val(option, opt, value): |
383 | 552c8dff | Michael Hanselmann | """Custom parser class for key=val,key=val options.
|
384 | 552c8dff | Michael Hanselmann |
|
385 | 552c8dff | Michael Hanselmann | This will store the parsed values as a dict {key: val}.
|
386 | a8469393 | Iustin Pop |
|
387 | a8469393 | Iustin Pop | """
|
388 | a8469393 | Iustin Pop | return _SplitKeyVal(opt, value)
|
389 | a8469393 | Iustin Pop | |
390 | a8469393 | Iustin Pop | |
391 | 63d44c55 | Michael Hanselmann | # completion_suggestion is normally a list. Using numeric values not evaluating
|
392 | 63d44c55 | Michael Hanselmann | # to False for dynamic completion.
|
393 | 63d44c55 | Michael Hanselmann | (OPT_COMPL_MANY_NODES, |
394 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ONE_NODE, |
395 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ONE_INSTANCE, |
396 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ONE_OS, |
397 | 2d3ed64b | Michael Hanselmann | OPT_COMPL_ONE_IALLOCATOR, |
398 | 2d3ed64b | Michael Hanselmann | OPT_COMPL_INST_ADD_NODES) = range(100, 106) |
399 | 63d44c55 | Michael Hanselmann | |
400 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ALL = frozenset([
|
401 | 63d44c55 | Michael Hanselmann | OPT_COMPL_MANY_NODES, |
402 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ONE_NODE, |
403 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ONE_INSTANCE, |
404 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ONE_OS, |
405 | 63d44c55 | Michael Hanselmann | OPT_COMPL_ONE_IALLOCATOR, |
406 | 2d3ed64b | Michael Hanselmann | OPT_COMPL_INST_ADD_NODES, |
407 | 63d44c55 | Michael Hanselmann | ]) |
408 | 63d44c55 | Michael Hanselmann | |
409 | 63d44c55 | Michael Hanselmann | |
410 | 552c8dff | Michael Hanselmann | class CliOption(Option): |
411 | 552c8dff | Michael Hanselmann | """Custom option class for optparse.
|
412 | a8469393 | Iustin Pop |
|
413 | a8469393 | Iustin Pop | """
|
414 | 863d7f46 | Michael Hanselmann | ATTRS = Option.ATTRS + [ |
415 | 863d7f46 | Michael Hanselmann | "completion_suggest",
|
416 | 863d7f46 | Michael Hanselmann | ] |
417 | 552c8dff | Michael Hanselmann | TYPES = Option.TYPES + ( |
418 | 552c8dff | Michael Hanselmann | "identkeyval",
|
419 | 552c8dff | Michael Hanselmann | "keyval",
|
420 | 552c8dff | Michael Hanselmann | "unit",
|
421 | 552c8dff | Michael Hanselmann | ) |
422 | 552c8dff | Michael Hanselmann | TYPE_CHECKER = Option.TYPE_CHECKER.copy() |
423 | 552c8dff | Michael Hanselmann | TYPE_CHECKER["identkeyval"] = check_ident_key_val
|
424 | a8469393 | Iustin Pop | TYPE_CHECKER["keyval"] = check_key_val
|
425 | 552c8dff | Michael Hanselmann | TYPE_CHECKER["unit"] = check_unit
|
426 | a8469393 | Iustin Pop | |
427 | a8469393 | Iustin Pop | |
428 | a8083063 | Iustin Pop | # optparse.py sets make_option, so we do it for our own option class, too
|
429 | a8083063 | Iustin Pop | cli_option = CliOption |
430 | a8083063 | Iustin Pop | |
431 | a8083063 | Iustin Pop | |
432 | c38c44ad | Michael Hanselmann | DEBUG_OPT = cli_option("-d", "--debug", default=False, |
433 | c38c44ad | Michael Hanselmann | action="store_true",
|
434 | c38c44ad | Michael Hanselmann | help="Turn debugging on")
|
435 | c38c44ad | Michael Hanselmann | |
436 | c38c44ad | Michael Hanselmann | NOHDR_OPT = cli_option("--no-headers", default=False, |
437 | c38c44ad | Michael Hanselmann | action="store_true", dest="no_headers", |
438 | c38c44ad | Michael Hanselmann | help="Don't display column headers")
|
439 | c38c44ad | Michael Hanselmann | |
440 | c38c44ad | Michael Hanselmann | SEP_OPT = cli_option("--separator", default=None, |
441 | c38c44ad | Michael Hanselmann | action="store", dest="separator", |
442 | c38c44ad | Michael Hanselmann | help=("Separator between output fields"
|
443 | c38c44ad | Michael Hanselmann | " (defaults to one space)"))
|
444 | c38c44ad | Michael Hanselmann | |
445 | c38c44ad | Michael Hanselmann | USEUNITS_OPT = cli_option("--units", default=None, |
446 | c38c44ad | Michael Hanselmann | dest="units", choices=('h', 'm', 'g', 't'), |
447 | c38c44ad | Michael Hanselmann | help="Specify units for output (one of hmgt)")
|
448 | c38c44ad | Michael Hanselmann | |
449 | c38c44ad | Michael Hanselmann | FIELDS_OPT = cli_option("-o", "--output", dest="output", action="store", |
450 | c38c44ad | Michael Hanselmann | type="string", metavar="FIELDS", |
451 | c38c44ad | Michael Hanselmann | help="Comma separated list of output fields")
|
452 | c38c44ad | Michael Hanselmann | |
453 | c38c44ad | Michael Hanselmann | FORCE_OPT = cli_option("-f", "--force", dest="force", action="store_true", |
454 | c38c44ad | Michael Hanselmann | default=False, help="Force the operation") |
455 | c38c44ad | Michael Hanselmann | |
456 | c38c44ad | Michael Hanselmann | CONFIRM_OPT = cli_option("--yes", dest="confirm", action="store_true", |
457 | c38c44ad | Michael Hanselmann | default=False, help="Do not require confirmation") |
458 | c38c44ad | Michael Hanselmann | |
459 | c38c44ad | Michael Hanselmann | TAG_SRC_OPT = cli_option("--from", dest="tags_source", |
460 | c38c44ad | Michael Hanselmann | default=None, help="File with tag names") |
461 | c38c44ad | Michael Hanselmann | |
462 | c38c44ad | Michael Hanselmann | SUBMIT_OPT = cli_option("--submit", dest="submit_only", |
463 | c38c44ad | Michael Hanselmann | default=False, action="store_true", |
464 | c38c44ad | Michael Hanselmann | help=("Submit the job and return the job ID, but"
|
465 | c38c44ad | Michael Hanselmann | " don't wait for the job to finish"))
|
466 | c38c44ad | Michael Hanselmann | |
467 | c38c44ad | Michael Hanselmann | SYNC_OPT = cli_option("--sync", dest="do_locking", |
468 | c38c44ad | Michael Hanselmann | default=False, action="store_true", |
469 | c38c44ad | Michael Hanselmann | help=("Grab locks while doing the queries"
|
470 | c38c44ad | Michael Hanselmann | " in order to ensure more consistent results"))
|
471 | c38c44ad | Michael Hanselmann | |
472 | c38c44ad | Michael Hanselmann | _DRY_RUN_OPT = cli_option("--dry-run", default=False, |
473 | c38c44ad | Michael Hanselmann | action="store_true",
|
474 | c38c44ad | Michael Hanselmann | help=("Do not execute the operation, just run the"
|
475 | c38c44ad | Michael Hanselmann | " check steps and verify it it could be"
|
476 | c38c44ad | Michael Hanselmann | " executed"))
|
477 | c38c44ad | Michael Hanselmann | |
478 | 9cdb9578 | Iustin Pop | VERBOSE_OPT = cli_option("-v", "--verbose", default=False, |
479 | 9cdb9578 | Iustin Pop | action="store_true",
|
480 | 9cdb9578 | Iustin Pop | help="Increase the verbosity of the operation")
|
481 | 9cdb9578 | Iustin Pop | |
482 | a0c9776a | Iustin Pop | DEBUG_SIMERR_OPT = cli_option("--debug-simulate-errors", default=False, |
483 | a0c9776a | Iustin Pop | action="store_true", dest="simulate_errors", |
484 | a0c9776a | Iustin Pop | help="Debugging option that makes the operation"
|
485 | a0c9776a | Iustin Pop | " treat most runtime checks as failed")
|
486 | a0c9776a | Iustin Pop | |
487 | 3f75b4f3 | Iustin Pop | NWSYNC_OPT = cli_option("--no-wait-for-sync", dest="wait_for_sync", |
488 | 3f75b4f3 | Iustin Pop | default=True, action="store_false", |
489 | 3f75b4f3 | Iustin Pop | help="Don't wait for sync (DANGEROUS!)")
|
490 | 3f75b4f3 | Iustin Pop | |
491 | 4f365444 | Iustin Pop | DISK_TEMPLATE_OPT = cli_option("-t", "--disk-template", dest="disk_template", |
492 | 4f365444 | Iustin Pop | help="Custom disk setup (diskless, file,"
|
493 | 4f365444 | Iustin Pop | " plain or drbd)",
|
494 | 4f365444 | Iustin Pop | default=None, metavar="TEMPL", |
495 | 4f365444 | Iustin Pop | choices=list(constants.DISK_TEMPLATES))
|
496 | 4f365444 | Iustin Pop | |
497 | 26023ecd | Iustin Pop | NONICS_OPT = cli_option("--no-nics", default=False, action="store_true", |
498 | 26023ecd | Iustin Pop | help="Do not create any network cards for"
|
499 | 26023ecd | Iustin Pop | " the instance")
|
500 | 26023ecd | Iustin Pop | |
501 | 4a25828c | Iustin Pop | FILESTORE_DIR_OPT = cli_option("--file-storage-dir", dest="file_storage_dir", |
502 | 4a25828c | Iustin Pop | help="Relative path under default cluster-wide"
|
503 | 4a25828c | Iustin Pop | " file storage dir to store file-based disks",
|
504 | 4a25828c | Iustin Pop | default=None, metavar="<DIR>") |
505 | 4a25828c | Iustin Pop | |
506 | 0f87c43e | Iustin Pop | FILESTORE_DRIVER_OPT = cli_option("--file-driver", dest="file_driver", |
507 | 0f87c43e | Iustin Pop | help="Driver to use for image files",
|
508 | 0f87c43e | Iustin Pop | default="loop", metavar="<DRIVER>", |
509 | 0f87c43e | Iustin Pop | choices=list(constants.FILE_DRIVER))
|
510 | 0f87c43e | Iustin Pop | |
511 | 4eb62659 | Iustin Pop | IALLOCATOR_OPT = cli_option("-I", "--iallocator", metavar="<NAME>", |
512 | 4eb62659 | Iustin Pop | help="Select nodes for the instance automatically"
|
513 | 4eb62659 | Iustin Pop | " using the <NAME> iallocator plugin",
|
514 | 4eb62659 | Iustin Pop | default=None, type="string", |
515 | 4eb62659 | Iustin Pop | completion_suggest=OPT_COMPL_ONE_IALLOCATOR) |
516 | 4eb62659 | Iustin Pop | |
517 | d3ed23ff | Iustin Pop | OS_OPT = cli_option("-o", "--os-type", dest="os", help="What OS to run", |
518 | d3ed23ff | Iustin Pop | metavar="<os>",
|
519 | d3ed23ff | Iustin Pop | completion_suggest=OPT_COMPL_ONE_OS) |
520 | d3ed23ff | Iustin Pop | |
521 | 087ed2ed | Iustin Pop | BACKEND_OPT = cli_option("-B", "--backend-parameters", dest="beparams", |
522 | 087ed2ed | Iustin Pop | type="keyval", default={},
|
523 | 087ed2ed | Iustin Pop | help="Backend parameters")
|
524 | 48f212d7 | Iustin Pop | |
525 | 48f212d7 | Iustin Pop | HVOPTS_OPT = cli_option("-H", "--hypervisor-parameters", type="keyval", |
526 | 48f212d7 | Iustin Pop | default={}, dest="hvparams",
|
527 | 48f212d7 | Iustin Pop | help="Hypervisor parameters")
|
528 | 087ed2ed | Iustin Pop | |
529 | 236fd9c4 | Iustin Pop | HYPERVISOR_OPT = cli_option("-H", "--hypervisor-parameters", dest="hypervisor", |
530 | 236fd9c4 | Iustin Pop | help="Hypervisor and hypervisor options, in the"
|
531 | 236fd9c4 | Iustin Pop | " format hypervisor:option=value,option=value,...",
|
532 | 236fd9c4 | Iustin Pop | default=None, type="identkeyval") |
533 | 073271f6 | Iustin Pop | |
534 | 073271f6 | Iustin Pop | HVLIST_OPT = cli_option("-H", "--hypervisor-parameters", dest="hvparams", |
535 | 073271f6 | Iustin Pop | help="Hypervisor and hypervisor options, in the"
|
536 | 073271f6 | Iustin Pop | " format hypervisor:option=value,option=value,...",
|
537 | 073271f6 | Iustin Pop | default=[], action="append", type="identkeyval") |
538 | 236fd9c4 | Iustin Pop | |
539 | 91e0748c | Iustin Pop | NOIPCHECK_OPT = cli_option("--no-ip-check", dest="ip_check", default=True, |
540 | 91e0748c | Iustin Pop | action="store_false",
|
541 | 91e0748c | Iustin Pop | help="Don't check that the instance's IP"
|
542 | 91e0748c | Iustin Pop | " is alive")
|
543 | 91e0748c | Iustin Pop | |
544 | 7d3a9fab | Iustin Pop | NET_OPT = cli_option("--net",
|
545 | 7d3a9fab | Iustin Pop | help="NIC parameters", default=[],
|
546 | 7d3a9fab | Iustin Pop | dest="nics", action="append", type="identkeyval") |
547 | e3876ccb | Iustin Pop | |
548 | e3876ccb | Iustin Pop | DISK_OPT = cli_option("--disk", help="Disk parameters", default=[], |
549 | e3876ccb | Iustin Pop | dest="disks", action="append", type="identkeyval") |
550 | 91e0748c | Iustin Pop | |
551 | c38c44ad | Michael Hanselmann | |
552 | de47cf8f | Guido Trotter | def _ParseArgs(argv, commands, aliases): |
553 | c41eea6e | Iustin Pop | """Parser for the command line arguments.
|
554 | a8083063 | Iustin Pop |
|
555 | 5bbd3f7f | Michael Hanselmann | This function parses the arguments and returns the function which
|
556 | c41eea6e | Iustin Pop | must be executed together with its (modified) arguments.
|
557 | a8083063 | Iustin Pop |
|
558 | c41eea6e | Iustin Pop | @param argv: the command line
|
559 | c41eea6e | Iustin Pop | @param commands: dictionary with special contents, see the design
|
560 | c41eea6e | Iustin Pop | doc for cmdline handling
|
561 | c41eea6e | Iustin Pop | @param aliases: dictionary with command aliases {'alias': 'target, ...}
|
562 | 098c0958 | Michael Hanselmann |
|
563 | a8083063 | Iustin Pop | """
|
564 | a8083063 | Iustin Pop | if len(argv) == 0: |
565 | a8083063 | Iustin Pop | binary = "<command>"
|
566 | a8083063 | Iustin Pop | else:
|
567 | a8083063 | Iustin Pop | binary = argv[0].split("/")[-1] |
568 | a8083063 | Iustin Pop | |
569 | a8083063 | Iustin Pop | if len(argv) > 1 and argv[1] == "--version": |
570 | 03298ebe | Michael Hanselmann | ToStdout("%s (ganeti) %s", binary, constants.RELEASE_VERSION)
|
571 | a8083063 | Iustin Pop | # Quit right away. That way we don't have to care about this special
|
572 | a8083063 | Iustin Pop | # argument. optparse.py does it the same.
|
573 | a8083063 | Iustin Pop | sys.exit(0)
|
574 | a8083063 | Iustin Pop | |
575 | de47cf8f | Guido Trotter | if len(argv) < 2 or not (argv[1] in commands or |
576 | 70a35b6f | Guido Trotter | argv[1] in aliases): |
577 | a8083063 | Iustin Pop | # let's do a nice thing
|
578 | a8083063 | Iustin Pop | sortedcmds = commands.keys() |
579 | a8083063 | Iustin Pop | sortedcmds.sort() |
580 | 03298ebe | Michael Hanselmann | |
581 | 03298ebe | Michael Hanselmann | ToStdout("Usage: %s {command} [options...] [argument...]", binary)
|
582 | 03298ebe | Michael Hanselmann | ToStdout("%s <command> --help to see details, or man %s", binary, binary)
|
583 | 03298ebe | Michael Hanselmann | ToStdout("")
|
584 | 03298ebe | Michael Hanselmann | |
585 | a8083063 | Iustin Pop | # compute the max line length for cmd + usage
|
586 | 4e713df6 | Iustin Pop | mlen = max([len(" %s" % cmd) for cmd in commands]) |
587 | a8083063 | Iustin Pop | mlen = min(60, mlen) # should not get here... |
588 | 03298ebe | Michael Hanselmann | |
589 | a8083063 | Iustin Pop | # and format a nice command list
|
590 | 03298ebe | Michael Hanselmann | ToStdout("Commands:")
|
591 | a8083063 | Iustin Pop | for cmd in sortedcmds: |
592 | 4e713df6 | Iustin Pop | cmdstr = " %s" % (cmd,)
|
593 | 9a033156 | Iustin Pop | help_text = commands[cmd][4]
|
594 | 03298ebe | Michael Hanselmann | help_lines = textwrap.wrap(help_text, 79 - 3 - mlen) |
595 | 03298ebe | Michael Hanselmann | ToStdout("%-*s - %s", mlen, cmdstr, help_lines.pop(0)) |
596 | a8083063 | Iustin Pop | for line in help_lines: |
597 | 03298ebe | Michael Hanselmann | ToStdout("%-*s %s", mlen, "", line) |
598 | 03298ebe | Michael Hanselmann | |
599 | 03298ebe | Michael Hanselmann | ToStdout("")
|
600 | 03298ebe | Michael Hanselmann | |
601 | a8083063 | Iustin Pop | return None, None, None |
602 | de47cf8f | Guido Trotter | |
603 | de47cf8f | Guido Trotter | # get command, unalias it, and look it up in commands
|
604 | a8083063 | Iustin Pop | cmd = argv.pop(1)
|
605 | de47cf8f | Guido Trotter | if cmd in aliases: |
606 | de47cf8f | Guido Trotter | if cmd in commands: |
607 | de47cf8f | Guido Trotter | raise errors.ProgrammerError("Alias '%s' overrides an existing" |
608 | de47cf8f | Guido Trotter | " command" % cmd)
|
609 | de47cf8f | Guido Trotter | |
610 | de47cf8f | Guido Trotter | if aliases[cmd] not in commands: |
611 | de47cf8f | Guido Trotter | raise errors.ProgrammerError("Alias '%s' maps to non-existing" |
612 | de47cf8f | Guido Trotter | " command '%s'" % (cmd, aliases[cmd]))
|
613 | de47cf8f | Guido Trotter | |
614 | de47cf8f | Guido Trotter | cmd = aliases[cmd] |
615 | de47cf8f | Guido Trotter | |
616 | a8005e17 | Michael Hanselmann | func, args_def, parser_opts, usage, description = commands[cmd] |
617 | 64c65a2a | Iustin Pop | parser = OptionParser(option_list=parser_opts + [_DRY_RUN_OPT], |
618 | a8083063 | Iustin Pop | description=description, |
619 | a8083063 | Iustin Pop | formatter=TitledHelpFormatter(), |
620 | a8083063 | Iustin Pop | usage="%%prog %s %s" % (cmd, usage))
|
621 | a8083063 | Iustin Pop | parser.disable_interspersed_args() |
622 | a8083063 | Iustin Pop | options, args = parser.parse_args() |
623 | a8005e17 | Michael Hanselmann | |
624 | a8005e17 | Michael Hanselmann | if not _CheckArguments(cmd, args_def, args): |
625 | a8083063 | Iustin Pop | return None, None, None |
626 | a8083063 | Iustin Pop | |
627 | a8083063 | Iustin Pop | return func, options, args
|
628 | a8083063 | Iustin Pop | |
629 | a8083063 | Iustin Pop | |
630 | a8005e17 | Michael Hanselmann | def _CheckArguments(cmd, args_def, args): |
631 | a8005e17 | Michael Hanselmann | """Verifies the arguments using the argument definition.
|
632 | a8005e17 | Michael Hanselmann |
|
633 | a8005e17 | Michael Hanselmann | Algorithm:
|
634 | a8005e17 | Michael Hanselmann |
|
635 | a8005e17 | Michael Hanselmann | 1. Abort with error if values specified by user but none expected.
|
636 | a8005e17 | Michael Hanselmann |
|
637 | a8005e17 | Michael Hanselmann | 1. For each argument in definition
|
638 | a8005e17 | Michael Hanselmann |
|
639 | a8005e17 | Michael Hanselmann | 1. Keep running count of minimum number of values (min_count)
|
640 | a8005e17 | Michael Hanselmann | 1. Keep running count of maximum number of values (max_count)
|
641 | a8005e17 | Michael Hanselmann | 1. If it has an unlimited number of values
|
642 | a8005e17 | Michael Hanselmann |
|
643 | a8005e17 | Michael Hanselmann | 1. Abort with error if it's not the last argument in the definition
|
644 | a8005e17 | Michael Hanselmann |
|
645 | a8005e17 | Michael Hanselmann | 1. If last argument has limited number of values
|
646 | a8005e17 | Michael Hanselmann |
|
647 | a8005e17 | Michael Hanselmann | 1. Abort with error if number of values doesn't match or is too large
|
648 | a8005e17 | Michael Hanselmann |
|
649 | a8005e17 | Michael Hanselmann | 1. Abort with error if user didn't pass enough values (min_count)
|
650 | a8005e17 | Michael Hanselmann |
|
651 | a8005e17 | Michael Hanselmann | """
|
652 | a8005e17 | Michael Hanselmann | if args and not args_def: |
653 | a8005e17 | Michael Hanselmann | ToStderr("Error: Command %s expects no arguments", cmd)
|
654 | a8005e17 | Michael Hanselmann | return False |
655 | a8005e17 | Michael Hanselmann | |
656 | a8005e17 | Michael Hanselmann | min_count = None
|
657 | a8005e17 | Michael Hanselmann | max_count = None
|
658 | a8005e17 | Michael Hanselmann | check_max = None
|
659 | a8005e17 | Michael Hanselmann | |
660 | a8005e17 | Michael Hanselmann | last_idx = len(args_def) - 1 |
661 | a8005e17 | Michael Hanselmann | |
662 | a8005e17 | Michael Hanselmann | for idx, arg in enumerate(args_def): |
663 | a8005e17 | Michael Hanselmann | if min_count is None: |
664 | a8005e17 | Michael Hanselmann | min_count = arg.min |
665 | a8005e17 | Michael Hanselmann | elif arg.min is not None: |
666 | a8005e17 | Michael Hanselmann | min_count += arg.min |
667 | a8005e17 | Michael Hanselmann | |
668 | a8005e17 | Michael Hanselmann | if max_count is None: |
669 | a8005e17 | Michael Hanselmann | max_count = arg.max |
670 | a8005e17 | Michael Hanselmann | elif arg.max is not None: |
671 | a8005e17 | Michael Hanselmann | max_count += arg.max |
672 | a8005e17 | Michael Hanselmann | |
673 | a8005e17 | Michael Hanselmann | if idx == last_idx:
|
674 | a8005e17 | Michael Hanselmann | check_max = (arg.max is not None) |
675 | a8005e17 | Michael Hanselmann | |
676 | a8005e17 | Michael Hanselmann | elif arg.max is None: |
677 | a8005e17 | Michael Hanselmann | raise errors.ProgrammerError("Only the last argument can have max=None") |
678 | a8005e17 | Michael Hanselmann | |
679 | a8005e17 | Michael Hanselmann | if check_max:
|
680 | a8005e17 | Michael Hanselmann | # Command with exact number of arguments
|
681 | a8005e17 | Michael Hanselmann | if (min_count is not None and max_count is not None and |
682 | a8005e17 | Michael Hanselmann | min_count == max_count and len(args) != min_count): |
683 | a8005e17 | Michael Hanselmann | ToStderr("Error: Command %s expects %d argument(s)", cmd, min_count)
|
684 | a8005e17 | Michael Hanselmann | return False |
685 | a8005e17 | Michael Hanselmann | |
686 | a8005e17 | Michael Hanselmann | # Command with limited number of arguments
|
687 | a8005e17 | Michael Hanselmann | if max_count is not None and len(args) > max_count: |
688 | a8005e17 | Michael Hanselmann | ToStderr("Error: Command %s expects only %d argument(s)",
|
689 | a8005e17 | Michael Hanselmann | cmd, max_count) |
690 | a8005e17 | Michael Hanselmann | return False |
691 | a8005e17 | Michael Hanselmann | |
692 | a8005e17 | Michael Hanselmann | # Command with some required arguments
|
693 | a8005e17 | Michael Hanselmann | if min_count is not None and len(args) < min_count: |
694 | a8005e17 | Michael Hanselmann | ToStderr("Error: Command %s expects at least %d argument(s)",
|
695 | a8005e17 | Michael Hanselmann | cmd, min_count) |
696 | a8005e17 | Michael Hanselmann | return False |
697 | a8005e17 | Michael Hanselmann | |
698 | a8005e17 | Michael Hanselmann | return True |
699 | a8005e17 | Michael Hanselmann | |
700 | a8005e17 | Michael Hanselmann | |
701 | 60d49723 | Michael Hanselmann | def SplitNodeOption(value): |
702 | 60d49723 | Michael Hanselmann | """Splits the value of a --node option.
|
703 | 60d49723 | Michael Hanselmann |
|
704 | 60d49723 | Michael Hanselmann | """
|
705 | 60d49723 | Michael Hanselmann | if value and ':' in value: |
706 | 60d49723 | Michael Hanselmann | return value.split(':', 1) |
707 | 60d49723 | Michael Hanselmann | else:
|
708 | 60d49723 | Michael Hanselmann | return (value, None) |
709 | 60d49723 | Michael Hanselmann | |
710 | 60d49723 | Michael Hanselmann | |
711 | 4331f6cd | Michael Hanselmann | def UsesRPC(fn): |
712 | 4331f6cd | Michael Hanselmann | def wrapper(*args, **kwargs): |
713 | 4331f6cd | Michael Hanselmann | rpc.Init() |
714 | 4331f6cd | Michael Hanselmann | try:
|
715 | 4331f6cd | Michael Hanselmann | return fn(*args, **kwargs)
|
716 | 4331f6cd | Michael Hanselmann | finally:
|
717 | 4331f6cd | Michael Hanselmann | rpc.Shutdown() |
718 | 4331f6cd | Michael Hanselmann | return wrapper
|
719 | 4331f6cd | Michael Hanselmann | |
720 | 4331f6cd | Michael Hanselmann | |
721 | 47988778 | Iustin Pop | def AskUser(text, choices=None): |
722 | 47988778 | Iustin Pop | """Ask the user a question.
|
723 | a8083063 | Iustin Pop |
|
724 | c41eea6e | Iustin Pop | @param text: the question to ask
|
725 | a8083063 | Iustin Pop |
|
726 | c41eea6e | Iustin Pop | @param choices: list with elements tuples (input_char, return_value,
|
727 | c41eea6e | Iustin Pop | description); if not given, it will default to: [('y', True,
|
728 | c41eea6e | Iustin Pop | 'Perform the operation'), ('n', False, 'Do no do the operation')];
|
729 | c41eea6e | Iustin Pop | note that the '?' char is reserved for help
|
730 | 47988778 | Iustin Pop |
|
731 | c41eea6e | Iustin Pop | @return: one of the return values from the choices list; if input is
|
732 | c41eea6e | Iustin Pop | not possible (i.e. not running with a tty, we return the last
|
733 | c41eea6e | Iustin Pop | entry from the list
|
734 | a8083063 | Iustin Pop |
|
735 | a8083063 | Iustin Pop | """
|
736 | 47988778 | Iustin Pop | if choices is None: |
737 | 47988778 | Iustin Pop | choices = [('y', True, 'Perform the operation'), |
738 | 47988778 | Iustin Pop | ('n', False, 'Do not perform the operation')] |
739 | 47988778 | Iustin Pop | if not choices or not isinstance(choices, list): |
740 | 5bbd3f7f | Michael Hanselmann | raise errors.ProgrammerError("Invalid choices argument to AskUser") |
741 | 47988778 | Iustin Pop | for entry in choices: |
742 | 47988778 | Iustin Pop | if not isinstance(entry, tuple) or len(entry) < 3 or entry[0] == '?': |
743 | 5bbd3f7f | Michael Hanselmann | raise errors.ProgrammerError("Invalid choices element to AskUser") |
744 | 47988778 | Iustin Pop | |
745 | 47988778 | Iustin Pop | answer = choices[-1][1] |
746 | 47988778 | Iustin Pop | new_text = [] |
747 | 47988778 | Iustin Pop | for line in text.splitlines(): |
748 | 47988778 | Iustin Pop | new_text.append(textwrap.fill(line, 70, replace_whitespace=False)) |
749 | 47988778 | Iustin Pop | text = "\n".join(new_text)
|
750 | a8083063 | Iustin Pop | try:
|
751 | 3023170f | Iustin Pop | f = file("/dev/tty", "a+") |
752 | a8083063 | Iustin Pop | except IOError: |
753 | 47988778 | Iustin Pop | return answer
|
754 | a8083063 | Iustin Pop | try:
|
755 | 47988778 | Iustin Pop | chars = [entry[0] for entry in choices] |
756 | 47988778 | Iustin Pop | chars[-1] = "[%s]" % chars[-1] |
757 | 47988778 | Iustin Pop | chars.append('?')
|
758 | 47988778 | Iustin Pop | maps = dict([(entry[0], entry[1]) for entry in choices]) |
759 | 47988778 | Iustin Pop | while True: |
760 | 47988778 | Iustin Pop | f.write(text) |
761 | 47988778 | Iustin Pop | f.write('\n')
|
762 | 47988778 | Iustin Pop | f.write("/".join(chars))
|
763 | 47988778 | Iustin Pop | f.write(": ")
|
764 | 47988778 | Iustin Pop | line = f.readline(2).strip().lower()
|
765 | 47988778 | Iustin Pop | if line in maps: |
766 | 47988778 | Iustin Pop | answer = maps[line] |
767 | 47988778 | Iustin Pop | break
|
768 | 47988778 | Iustin Pop | elif line == '?': |
769 | 47988778 | Iustin Pop | for entry in choices: |
770 | 47988778 | Iustin Pop | f.write(" %s - %s\n" % (entry[0], entry[2])) |
771 | 47988778 | Iustin Pop | f.write("\n")
|
772 | 47988778 | Iustin Pop | continue
|
773 | a8083063 | Iustin Pop | finally:
|
774 | a8083063 | Iustin Pop | f.close() |
775 | a8083063 | Iustin Pop | return answer
|
776 | a8083063 | Iustin Pop | |
777 | a8083063 | Iustin Pop | |
778 | e9d741b6 | Iustin Pop | class JobSubmittedException(Exception): |
779 | e9d741b6 | Iustin Pop | """Job was submitted, client should exit.
|
780 | e9d741b6 | Iustin Pop |
|
781 | e9d741b6 | Iustin Pop | This exception has one argument, the ID of the job that was
|
782 | e9d741b6 | Iustin Pop | submitted. The handler should print this ID.
|
783 | e9d741b6 | Iustin Pop |
|
784 | e9d741b6 | Iustin Pop | This is not an error, just a structured way to exit from clients.
|
785 | e9d741b6 | Iustin Pop |
|
786 | e9d741b6 | Iustin Pop | """
|
787 | e9d741b6 | Iustin Pop | |
788 | e9d741b6 | Iustin Pop | |
789 | 0a1e74d9 | Iustin Pop | def SendJob(ops, cl=None): |
790 | 0a1e74d9 | Iustin Pop | """Function to submit an opcode without waiting for the results.
|
791 | a8083063 | Iustin Pop |
|
792 | 0a1e74d9 | Iustin Pop | @type ops: list
|
793 | 0a1e74d9 | Iustin Pop | @param ops: list of opcodes
|
794 | 0a1e74d9 | Iustin Pop | @type cl: luxi.Client
|
795 | 0a1e74d9 | Iustin Pop | @param cl: the luxi client to use for communicating with the master;
|
796 | 0a1e74d9 | Iustin Pop | if None, a new client will be created
|
797 | a8083063 | Iustin Pop |
|
798 | a8083063 | Iustin Pop | """
|
799 | e2212007 | Iustin Pop | if cl is None: |
800 | b33e986b | Iustin Pop | cl = GetClient() |
801 | 685ee993 | Iustin Pop | |
802 | 0a1e74d9 | Iustin Pop | job_id = cl.SubmitJob(ops) |
803 | 0a1e74d9 | Iustin Pop | |
804 | 0a1e74d9 | Iustin Pop | return job_id
|
805 | 0a1e74d9 | Iustin Pop | |
806 | 0a1e74d9 | Iustin Pop | |
807 | 281606c1 | Michael Hanselmann | def PollJob(job_id, cl=None, feedback_fn=None): |
808 | 0a1e74d9 | Iustin Pop | """Function to poll for the result of a job.
|
809 | 0a1e74d9 | Iustin Pop |
|
810 | 0a1e74d9 | Iustin Pop | @type job_id: job identified
|
811 | 0a1e74d9 | Iustin Pop | @param job_id: the job to poll for results
|
812 | 0a1e74d9 | Iustin Pop | @type cl: luxi.Client
|
813 | 0a1e74d9 | Iustin Pop | @param cl: the luxi client to use for communicating with the master;
|
814 | 0a1e74d9 | Iustin Pop | if None, a new client will be created
|
815 | 0a1e74d9 | Iustin Pop |
|
816 | 0a1e74d9 | Iustin Pop | """
|
817 | 0a1e74d9 | Iustin Pop | if cl is None: |
818 | 0a1e74d9 | Iustin Pop | cl = GetClient() |
819 | 685ee993 | Iustin Pop | |
820 | 6c5a7090 | Michael Hanselmann | prev_job_info = None
|
821 | 6c5a7090 | Michael Hanselmann | prev_logmsg_serial = None
|
822 | 6c5a7090 | Michael Hanselmann | |
823 | 685ee993 | Iustin Pop | while True: |
824 | 6c5a7090 | Michael Hanselmann | result = cl.WaitForJobChange(job_id, ["status"], prev_job_info,
|
825 | 6c5a7090 | Michael Hanselmann | prev_logmsg_serial) |
826 | 6c5a7090 | Michael Hanselmann | if not result: |
827 | 685ee993 | Iustin Pop | # job not found, go away!
|
828 | 0bbe448c | Michael Hanselmann | raise errors.JobLost("Job with id %s lost" % job_id) |
829 | 685ee993 | Iustin Pop | |
830 | 6c5a7090 | Michael Hanselmann | # Split result, a tuple of (field values, log entries)
|
831 | 6c5a7090 | Michael Hanselmann | (job_info, log_entries) = result |
832 | 6c5a7090 | Michael Hanselmann | (status, ) = job_info |
833 | 6c5a7090 | Michael Hanselmann | |
834 | 6c5a7090 | Michael Hanselmann | if log_entries:
|
835 | 6c5a7090 | Michael Hanselmann | for log_entry in log_entries: |
836 | 6c5a7090 | Michael Hanselmann | (serial, timestamp, _, message) = log_entry |
837 | 6c5a7090 | Michael Hanselmann | if callable(feedback_fn): |
838 | 6c5a7090 | Michael Hanselmann | feedback_fn(log_entry[1:])
|
839 | 6c5a7090 | Michael Hanselmann | else:
|
840 | 26f15862 | Iustin Pop | encoded = utils.SafeEncode(message) |
841 | 03298ebe | Michael Hanselmann | ToStdout("%s %s", time.ctime(utils.MergeTime(timestamp)), encoded)
|
842 | 6c5a7090 | Michael Hanselmann | prev_logmsg_serial = max(prev_logmsg_serial, serial)
|
843 | 6c5a7090 | Michael Hanselmann | |
844 | 0bbe448c | Michael Hanselmann | # TODO: Handle canceled and archived jobs
|
845 | fbf0262f | Michael Hanselmann | elif status in (constants.JOB_STATUS_SUCCESS, |
846 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_ERROR, |
847 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_CANCELING, |
848 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_CANCELED): |
849 | 685ee993 | Iustin Pop | break
|
850 | 6c5a7090 | Michael Hanselmann | |
851 | 6c5a7090 | Michael Hanselmann | prev_job_info = job_info |
852 | 685ee993 | Iustin Pop | |
853 | 0e050889 | Iustin Pop | jobs = cl.QueryJobs([job_id], ["status", "opstatus", "opresult"]) |
854 | 0bbe448c | Michael Hanselmann | if not jobs: |
855 | 0bbe448c | Michael Hanselmann | raise errors.JobLost("Job with id %s lost" % job_id) |
856 | 685ee993 | Iustin Pop | |
857 | 0e050889 | Iustin Pop | status, opstatus, result = jobs[0]
|
858 | 0bbe448c | Michael Hanselmann | if status == constants.JOB_STATUS_SUCCESS:
|
859 | 53c04d04 | Iustin Pop | return result
|
860 | fbf0262f | Michael Hanselmann | elif status in (constants.JOB_STATUS_CANCELING, |
861 | fbf0262f | Michael Hanselmann | constants.JOB_STATUS_CANCELED): |
862 | fbf0262f | Michael Hanselmann | raise errors.OpExecError("Job was canceled") |
863 | 0bbe448c | Michael Hanselmann | else:
|
864 | 0e050889 | Iustin Pop | has_ok = False
|
865 | 0e050889 | Iustin Pop | for idx, (status, msg) in enumerate(zip(opstatus, result)): |
866 | 0e050889 | Iustin Pop | if status == constants.OP_STATUS_SUCCESS:
|
867 | 0e050889 | Iustin Pop | has_ok = True
|
868 | 0e050889 | Iustin Pop | elif status == constants.OP_STATUS_ERROR:
|
869 | bcb66fca | Iustin Pop | errors.MaybeRaise(msg) |
870 | 0e050889 | Iustin Pop | if has_ok:
|
871 | 0e050889 | Iustin Pop | raise errors.OpExecError("partial failure (opcode %d): %s" % |
872 | 0e050889 | Iustin Pop | (idx, msg)) |
873 | 0e050889 | Iustin Pop | else:
|
874 | 0e050889 | Iustin Pop | raise errors.OpExecError(str(msg)) |
875 | 0e050889 | Iustin Pop | # default failure mode
|
876 | 0bbe448c | Michael Hanselmann | raise errors.OpExecError(result)
|
877 | ceab32dd | Iustin Pop | |
878 | ceab32dd | Iustin Pop | |
879 | 0a1e74d9 | Iustin Pop | def SubmitOpCode(op, cl=None, feedback_fn=None): |
880 | 0a1e74d9 | Iustin Pop | """Legacy function to submit an opcode.
|
881 | 0a1e74d9 | Iustin Pop |
|
882 | 0a1e74d9 | Iustin Pop | This is just a simple wrapper over the construction of the processor
|
883 | 0a1e74d9 | Iustin Pop | instance. It should be extended to better handle feedback and
|
884 | 0a1e74d9 | Iustin Pop | interaction functions.
|
885 | 0a1e74d9 | Iustin Pop |
|
886 | 0a1e74d9 | Iustin Pop | """
|
887 | 0a1e74d9 | Iustin Pop | if cl is None: |
888 | 0a1e74d9 | Iustin Pop | cl = GetClient() |
889 | 0a1e74d9 | Iustin Pop | |
890 | 0a1e74d9 | Iustin Pop | job_id = SendJob([op], cl) |
891 | 0a1e74d9 | Iustin Pop | |
892 | 53c04d04 | Iustin Pop | op_results = PollJob(job_id, cl=cl, feedback_fn=feedback_fn) |
893 | 53c04d04 | Iustin Pop | |
894 | 53c04d04 | Iustin Pop | return op_results[0] |
895 | 0a1e74d9 | Iustin Pop | |
896 | 0a1e74d9 | Iustin Pop | |
897 | 94428652 | Iustin Pop | def SubmitOrSend(op, opts, cl=None, feedback_fn=None): |
898 | 94428652 | Iustin Pop | """Wrapper around SubmitOpCode or SendJob.
|
899 | 94428652 | Iustin Pop |
|
900 | 94428652 | Iustin Pop | This function will decide, based on the 'opts' parameter, whether to
|
901 | 94428652 | Iustin Pop | submit and wait for the result of the opcode (and return it), or
|
902 | 94428652 | Iustin Pop | whether to just send the job and print its identifier. It is used in
|
903 | 94428652 | Iustin Pop | order to simplify the implementation of the '--submit' option.
|
904 | 94428652 | Iustin Pop |
|
905 | 64c65a2a | Iustin Pop | It will also add the dry-run parameter from the options passed, if true.
|
906 | 64c65a2a | Iustin Pop |
|
907 | 94428652 | Iustin Pop | """
|
908 | 64c65a2a | Iustin Pop | if opts and opts.dry_run: |
909 | 64c65a2a | Iustin Pop | op.dry_run = opts.dry_run |
910 | 94428652 | Iustin Pop | if opts and opts.submit_only: |
911 | e9d741b6 | Iustin Pop | job_id = SendJob([op], cl=cl) |
912 | e9d741b6 | Iustin Pop | raise JobSubmittedException(job_id)
|
913 | 94428652 | Iustin Pop | else:
|
914 | 94428652 | Iustin Pop | return SubmitOpCode(op, cl=cl, feedback_fn=feedback_fn)
|
915 | 94428652 | Iustin Pop | |
916 | 94428652 | Iustin Pop | |
917 | af30b2fd | Michael Hanselmann | def GetClient(): |
918 | af30b2fd | Michael Hanselmann | # TODO: Cache object?
|
919 | b33e986b | Iustin Pop | try:
|
920 | b33e986b | Iustin Pop | client = luxi.Client() |
921 | b33e986b | Iustin Pop | except luxi.NoMasterError:
|
922 | b33e986b | Iustin Pop | master, myself = ssconf.GetMasterAndMyself() |
923 | b33e986b | Iustin Pop | if master != myself:
|
924 | b33e986b | Iustin Pop | raise errors.OpPrereqError("This is not the master node, please connect" |
925 | b33e986b | Iustin Pop | " to node '%s' and rerun the command" %
|
926 | b33e986b | Iustin Pop | master) |
927 | b33e986b | Iustin Pop | else:
|
928 | b33e986b | Iustin Pop | raise
|
929 | b33e986b | Iustin Pop | return client
|
930 | af30b2fd | Michael Hanselmann | |
931 | af30b2fd | Michael Hanselmann | |
932 | 73702ee7 | Iustin Pop | def FormatError(err): |
933 | 73702ee7 | Iustin Pop | """Return a formatted error message for a given error.
|
934 | 73702ee7 | Iustin Pop |
|
935 | 73702ee7 | Iustin Pop | This function takes an exception instance and returns a tuple
|
936 | 73702ee7 | Iustin Pop | consisting of two values: first, the recommended exit code, and
|
937 | 73702ee7 | Iustin Pop | second, a string describing the error message (not
|
938 | 73702ee7 | Iustin Pop | newline-terminated).
|
939 | 73702ee7 | Iustin Pop |
|
940 | 73702ee7 | Iustin Pop | """
|
941 | 73702ee7 | Iustin Pop | retcode = 1
|
942 | 73702ee7 | Iustin Pop | obuf = StringIO() |
943 | e2e521d0 | Iustin Pop | msg = str(err)
|
944 | 73702ee7 | Iustin Pop | if isinstance(err, errors.ConfigurationError): |
945 | e2e521d0 | Iustin Pop | txt = "Corrupt configuration file: %s" % msg
|
946 | 46fbdd04 | Iustin Pop | logging.error(txt) |
947 | e2e521d0 | Iustin Pop | obuf.write(txt + "\n")
|
948 | 73702ee7 | Iustin Pop | obuf.write("Aborting.")
|
949 | 73702ee7 | Iustin Pop | retcode = 2
|
950 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.HooksAbort): |
951 | 73702ee7 | Iustin Pop | obuf.write("Failure: hooks execution failed:\n")
|
952 | 73702ee7 | Iustin Pop | for node, script, out in err.args[0]: |
953 | 73702ee7 | Iustin Pop | if out:
|
954 | 73702ee7 | Iustin Pop | obuf.write(" node: %s, script: %s, output: %s\n" %
|
955 | 73702ee7 | Iustin Pop | (node, script, out)) |
956 | 73702ee7 | Iustin Pop | else:
|
957 | 73702ee7 | Iustin Pop | obuf.write(" node: %s, script: %s (no output)\n" %
|
958 | 73702ee7 | Iustin Pop | (node, script)) |
959 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.HooksFailure): |
960 | e2e521d0 | Iustin Pop | obuf.write("Failure: hooks general failure: %s" % msg)
|
961 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.ResolverError): |
962 | 73702ee7 | Iustin Pop | this_host = utils.HostInfo.SysName() |
963 | 73702ee7 | Iustin Pop | if err.args[0] == this_host: |
964 | 73702ee7 | Iustin Pop | msg = "Failure: can't resolve my own hostname ('%s')"
|
965 | 73702ee7 | Iustin Pop | else:
|
966 | 73702ee7 | Iustin Pop | msg = "Failure: can't resolve hostname '%s'"
|
967 | 73702ee7 | Iustin Pop | obuf.write(msg % err.args[0])
|
968 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.OpPrereqError): |
969 | 73702ee7 | Iustin Pop | obuf.write("Failure: prerequisites not met for this"
|
970 | e2e521d0 | Iustin Pop | " operation:\n%s" % msg)
|
971 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.OpExecError): |
972 | e2e521d0 | Iustin Pop | obuf.write("Failure: command execution error:\n%s" % msg)
|
973 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.TagError): |
974 | e2e521d0 | Iustin Pop | obuf.write("Failure: invalid tag(s) given:\n%s" % msg)
|
975 | 686d7433 | Iustin Pop | elif isinstance(err, errors.JobQueueDrainError): |
976 | 686d7433 | Iustin Pop | obuf.write("Failure: the job queue is marked for drain and doesn't"
|
977 | 686d7433 | Iustin Pop | " accept new requests\n")
|
978 | f87b405e | Michael Hanselmann | elif isinstance(err, errors.JobQueueFull): |
979 | f87b405e | Michael Hanselmann | obuf.write("Failure: the job queue is full and doesn't accept new"
|
980 | f87b405e | Michael Hanselmann | " job submissions until old jobs are archived\n")
|
981 | a5728081 | Guido Trotter | elif isinstance(err, errors.TypeEnforcementError): |
982 | a5728081 | Guido Trotter | obuf.write("Parameter Error: %s" % msg)
|
983 | c1ce76bb | Iustin Pop | elif isinstance(err, errors.ParameterError): |
984 | c1ce76bb | Iustin Pop | obuf.write("Failure: unknown/wrong parameter name '%s'" % msg)
|
985 | 73702ee7 | Iustin Pop | elif isinstance(err, errors.GenericError): |
986 | e2e521d0 | Iustin Pop | obuf.write("Unhandled Ganeti error: %s" % msg)
|
987 | 03a8dbdc | Iustin Pop | elif isinstance(err, luxi.NoMasterError): |
988 | 03a8dbdc | Iustin Pop | obuf.write("Cannot communicate with the master daemon.\nIs it running"
|
989 | 082c5adb | Michael Hanselmann | " and listening for connections?")
|
990 | 03a8dbdc | Iustin Pop | elif isinstance(err, luxi.TimeoutError): |
991 | 03a8dbdc | Iustin Pop | obuf.write("Timeout while talking to the master daemon. Error:\n"
|
992 | 03a8dbdc | Iustin Pop | "%s" % msg)
|
993 | 03a8dbdc | Iustin Pop | elif isinstance(err, luxi.ProtocolError): |
994 | 03a8dbdc | Iustin Pop | obuf.write("Unhandled protocol error while talking to the master daemon:\n"
|
995 | 03a8dbdc | Iustin Pop | "%s" % msg)
|
996 | e9d741b6 | Iustin Pop | elif isinstance(err, JobSubmittedException): |
997 | e9d741b6 | Iustin Pop | obuf.write("JobID: %s\n" % err.args[0]) |
998 | e9d741b6 | Iustin Pop | retcode = 0
|
999 | 73702ee7 | Iustin Pop | else:
|
1000 | e2e521d0 | Iustin Pop | obuf.write("Unhandled exception: %s" % msg)
|
1001 | 73702ee7 | Iustin Pop | return retcode, obuf.getvalue().rstrip('\n') |
1002 | 73702ee7 | Iustin Pop | |
1003 | 73702ee7 | Iustin Pop | |
1004 | de47cf8f | Guido Trotter | def GenericMain(commands, override=None, aliases=None): |
1005 | a8083063 | Iustin Pop | """Generic main function for all the gnt-* commands.
|
1006 | a8083063 | Iustin Pop |
|
1007 | 334d1483 | Iustin Pop | Arguments:
|
1008 | 334d1483 | Iustin Pop | - commands: a dictionary with a special structure, see the design doc
|
1009 | 334d1483 | Iustin Pop | for command line handling.
|
1010 | 334d1483 | Iustin Pop | - override: if not None, we expect a dictionary with keys that will
|
1011 | 334d1483 | Iustin Pop | override command line options; this can be used to pass
|
1012 | 334d1483 | Iustin Pop | options from the scripts to generic functions
|
1013 | de47cf8f | Guido Trotter | - aliases: dictionary with command aliases {'alias': 'target, ...}
|
1014 | a8083063 | Iustin Pop |
|
1015 | a8083063 | Iustin Pop | """
|
1016 | a8083063 | Iustin Pop | # save the program name and the entire command line for later logging
|
1017 | a8083063 | Iustin Pop | if sys.argv:
|
1018 | a8083063 | Iustin Pop | binary = os.path.basename(sys.argv[0]) or sys.argv[0] |
1019 | a8083063 | Iustin Pop | if len(sys.argv) >= 2: |
1020 | a8083063 | Iustin Pop | binary += " " + sys.argv[1] |
1021 | a8083063 | Iustin Pop | old_cmdline = " ".join(sys.argv[2:]) |
1022 | a8083063 | Iustin Pop | else:
|
1023 | a8083063 | Iustin Pop | old_cmdline = ""
|
1024 | a8083063 | Iustin Pop | else:
|
1025 | a8083063 | Iustin Pop | binary = "<unknown program>"
|
1026 | a8083063 | Iustin Pop | old_cmdline = ""
|
1027 | a8083063 | Iustin Pop | |
1028 | de47cf8f | Guido Trotter | if aliases is None: |
1029 | de47cf8f | Guido Trotter | aliases = {} |
1030 | de47cf8f | Guido Trotter | |
1031 | 3126878d | Guido Trotter | try:
|
1032 | 3126878d | Guido Trotter | func, options, args = _ParseArgs(sys.argv, commands, aliases) |
1033 | 3126878d | Guido Trotter | except errors.ParameterError, err:
|
1034 | 3126878d | Guido Trotter | result, err_msg = FormatError(err) |
1035 | 3126878d | Guido Trotter | ToStderr(err_msg) |
1036 | 3126878d | Guido Trotter | return 1 |
1037 | 3126878d | Guido Trotter | |
1038 | a8083063 | Iustin Pop | if func is None: # parse error |
1039 | a8083063 | Iustin Pop | return 1 |
1040 | a8083063 | Iustin Pop | |
1041 | 334d1483 | Iustin Pop | if override is not None: |
1042 | 334d1483 | Iustin Pop | for key, val in override.iteritems(): |
1043 | 334d1483 | Iustin Pop | setattr(options, key, val)
|
1044 | 334d1483 | Iustin Pop | |
1045 | 82d9caef | Iustin Pop | utils.SetupLogging(constants.LOG_COMMANDS, debug=options.debug, |
1046 | 82d9caef | Iustin Pop | stderr_logging=True, program=binary)
|
1047 | a8083063 | Iustin Pop | |
1048 | a8083063 | Iustin Pop | if old_cmdline:
|
1049 | 46fbdd04 | Iustin Pop | logging.info("run with arguments '%s'", old_cmdline)
|
1050 | a8083063 | Iustin Pop | else:
|
1051 | 46fbdd04 | Iustin Pop | logging.info("run with no arguments")
|
1052 | a8083063 | Iustin Pop | |
1053 | a8083063 | Iustin Pop | try:
|
1054 | a4af651e | Iustin Pop | result = func(options, args) |
1055 | d8353c3a | Iustin Pop | except (errors.GenericError, luxi.ProtocolError,
|
1056 | d8353c3a | Iustin Pop | JobSubmittedException), err: |
1057 | a4af651e | Iustin Pop | result, err_msg = FormatError(err) |
1058 | 5bbd3f7f | Michael Hanselmann | logging.exception("Error during command processing")
|
1059 | 46fbdd04 | Iustin Pop | ToStderr(err_msg) |
1060 | a8083063 | Iustin Pop | |
1061 | a8083063 | Iustin Pop | return result
|
1062 | 137161c9 | Michael Hanselmann | |
1063 | 137161c9 | Michael Hanselmann | |
1064 | 16be8703 | Iustin Pop | def GenerateTable(headers, fields, separator, data, |
1065 | 9fbfbb7b | Iustin Pop | numfields=None, unitfields=None, |
1066 | 9fbfbb7b | Iustin Pop | units=None):
|
1067 | 137161c9 | Michael Hanselmann | """Prints a table with headers and different fields.
|
1068 | 137161c9 | Michael Hanselmann |
|
1069 | 9fbfbb7b | Iustin Pop | @type headers: dict
|
1070 | 9fbfbb7b | Iustin Pop | @param headers: dictionary mapping field names to headers for
|
1071 | 9fbfbb7b | Iustin Pop | the table
|
1072 | 9fbfbb7b | Iustin Pop | @type fields: list
|
1073 | 9fbfbb7b | Iustin Pop | @param fields: the field names corresponding to each row in
|
1074 | 9fbfbb7b | Iustin Pop | the data field
|
1075 | 9fbfbb7b | Iustin Pop | @param separator: the separator to be used; if this is None,
|
1076 | 9fbfbb7b | Iustin Pop | the default 'smart' algorithm is used which computes optimal
|
1077 | 9fbfbb7b | Iustin Pop | field width, otherwise just the separator is used between
|
1078 | 9fbfbb7b | Iustin Pop | each field
|
1079 | 9fbfbb7b | Iustin Pop | @type data: list
|
1080 | 9fbfbb7b | Iustin Pop | @param data: a list of lists, each sublist being one row to be output
|
1081 | 9fbfbb7b | Iustin Pop | @type numfields: list
|
1082 | 9fbfbb7b | Iustin Pop | @param numfields: a list with the fields that hold numeric
|
1083 | 9fbfbb7b | Iustin Pop | values and thus should be right-aligned
|
1084 | 9fbfbb7b | Iustin Pop | @type unitfields: list
|
1085 | 9fbfbb7b | Iustin Pop | @param unitfields: a list with the fields that hold numeric
|
1086 | 9fbfbb7b | Iustin Pop | values that should be formatted with the units field
|
1087 | 9fbfbb7b | Iustin Pop | @type units: string or None
|
1088 | 9fbfbb7b | Iustin Pop | @param units: the units we should use for formatting, or None for
|
1089 | 9fbfbb7b | Iustin Pop | automatic choice (human-readable for non-separator usage, otherwise
|
1090 | 9fbfbb7b | Iustin Pop | megabytes); this is a one-letter string
|
1091 | 137161c9 | Michael Hanselmann |
|
1092 | 137161c9 | Michael Hanselmann | """
|
1093 | 9fbfbb7b | Iustin Pop | if units is None: |
1094 | 9fbfbb7b | Iustin Pop | if separator:
|
1095 | 9fbfbb7b | Iustin Pop | units = "m"
|
1096 | 9fbfbb7b | Iustin Pop | else:
|
1097 | 9fbfbb7b | Iustin Pop | units = "h"
|
1098 | 9fbfbb7b | Iustin Pop | |
1099 | 137161c9 | Michael Hanselmann | if numfields is None: |
1100 | 137161c9 | Michael Hanselmann | numfields = [] |
1101 | 137161c9 | Michael Hanselmann | if unitfields is None: |
1102 | 137161c9 | Michael Hanselmann | unitfields = [] |
1103 | 137161c9 | Michael Hanselmann | |
1104 | 00430f8e | Iustin Pop | numfields = utils.FieldSet(*numfields) |
1105 | 00430f8e | Iustin Pop | unitfields = utils.FieldSet(*unitfields) |
1106 | 00430f8e | Iustin Pop | |
1107 | 137161c9 | Michael Hanselmann | format_fields = [] |
1108 | 137161c9 | Michael Hanselmann | for field in fields: |
1109 | 01ca31ae | Iustin Pop | if headers and field not in headers: |
1110 | ea5a5b74 | Guido Trotter | # TODO: handle better unknown fields (either revert to old
|
1111 | 71c1af58 | Iustin Pop | # style of raising exception, or deal more intelligently with
|
1112 | 71c1af58 | Iustin Pop | # variable fields)
|
1113 | 71c1af58 | Iustin Pop | headers[field] = field |
1114 | 137161c9 | Michael Hanselmann | if separator is not None: |
1115 | 137161c9 | Michael Hanselmann | format_fields.append("%s")
|
1116 | 00430f8e | Iustin Pop | elif numfields.Matches(field):
|
1117 | 137161c9 | Michael Hanselmann | format_fields.append("%*s")
|
1118 | 137161c9 | Michael Hanselmann | else:
|
1119 | 137161c9 | Michael Hanselmann | format_fields.append("%-*s")
|
1120 | 137161c9 | Michael Hanselmann | |
1121 | 137161c9 | Michael Hanselmann | if separator is None: |
1122 | 137161c9 | Michael Hanselmann | mlens = [0 for name in fields] |
1123 | 137161c9 | Michael Hanselmann | format = ' '.join(format_fields)
|
1124 | 137161c9 | Michael Hanselmann | else:
|
1125 | 137161c9 | Michael Hanselmann | format = separator.replace("%", "%%").join(format_fields) |
1126 | 137161c9 | Michael Hanselmann | |
1127 | 137161c9 | Michael Hanselmann | for row in data: |
1128 | dcbd6288 | Guido Trotter | if row is None: |
1129 | dcbd6288 | Guido Trotter | continue
|
1130 | 137161c9 | Michael Hanselmann | for idx, val in enumerate(row): |
1131 | 00430f8e | Iustin Pop | if unitfields.Matches(fields[idx]):
|
1132 | 137161c9 | Michael Hanselmann | try:
|
1133 | 137161c9 | Michael Hanselmann | val = int(val)
|
1134 | 137161c9 | Michael Hanselmann | except ValueError: |
1135 | 137161c9 | Michael Hanselmann | pass
|
1136 | 137161c9 | Michael Hanselmann | else:
|
1137 | 9fbfbb7b | Iustin Pop | val = row[idx] = utils.FormatUnit(val, units) |
1138 | 01ca31ae | Iustin Pop | val = row[idx] = str(val)
|
1139 | 137161c9 | Michael Hanselmann | if separator is None: |
1140 | 137161c9 | Michael Hanselmann | mlens[idx] = max(mlens[idx], len(val)) |
1141 | 137161c9 | Michael Hanselmann | |
1142 | 16be8703 | Iustin Pop | result = [] |
1143 | 137161c9 | Michael Hanselmann | if headers:
|
1144 | 137161c9 | Michael Hanselmann | args = [] |
1145 | 137161c9 | Michael Hanselmann | for idx, name in enumerate(fields): |
1146 | 137161c9 | Michael Hanselmann | hdr = headers[name] |
1147 | 137161c9 | Michael Hanselmann | if separator is None: |
1148 | 137161c9 | Michael Hanselmann | mlens[idx] = max(mlens[idx], len(hdr)) |
1149 | 137161c9 | Michael Hanselmann | args.append(mlens[idx]) |
1150 | 137161c9 | Michael Hanselmann | args.append(hdr) |
1151 | 16be8703 | Iustin Pop | result.append(format % tuple(args))
|
1152 | 137161c9 | Michael Hanselmann | |
1153 | 137161c9 | Michael Hanselmann | for line in data: |
1154 | 137161c9 | Michael Hanselmann | args = [] |
1155 | dcbd6288 | Guido Trotter | if line is None: |
1156 | dcbd6288 | Guido Trotter | line = ['-' for _ in fields] |
1157 | 137161c9 | Michael Hanselmann | for idx in xrange(len(fields)): |
1158 | 137161c9 | Michael Hanselmann | if separator is None: |
1159 | 137161c9 | Michael Hanselmann | args.append(mlens[idx]) |
1160 | 137161c9 | Michael Hanselmann | args.append(line[idx]) |
1161 | 16be8703 | Iustin Pop | result.append(format % tuple(args))
|
1162 | 16be8703 | Iustin Pop | |
1163 | 16be8703 | Iustin Pop | return result
|
1164 | 3386e7a9 | Iustin Pop | |
1165 | 3386e7a9 | Iustin Pop | |
1166 | 3386e7a9 | Iustin Pop | def FormatTimestamp(ts): |
1167 | 3386e7a9 | Iustin Pop | """Formats a given timestamp.
|
1168 | 3386e7a9 | Iustin Pop |
|
1169 | 3386e7a9 | Iustin Pop | @type ts: timestamp
|
1170 | 3386e7a9 | Iustin Pop | @param ts: a timeval-type timestamp, a tuple of seconds and microseconds
|
1171 | 3386e7a9 | Iustin Pop |
|
1172 | 3386e7a9 | Iustin Pop | @rtype: string
|
1173 | 5fcc718f | Iustin Pop | @return: a string with the formatted timestamp
|
1174 | 3386e7a9 | Iustin Pop |
|
1175 | 3386e7a9 | Iustin Pop | """
|
1176 | e0ec0ff6 | Iustin Pop | if not isinstance (ts, (tuple, list)) or len(ts) != 2: |
1177 | e0ec0ff6 | Iustin Pop | return '?' |
1178 | 3386e7a9 | Iustin Pop | sec, usec = ts |
1179 | 3386e7a9 | Iustin Pop | return time.strftime("%F %T", time.localtime(sec)) + ".%06d" % usec |
1180 | 2241e2b9 | Iustin Pop | |
1181 | 2241e2b9 | Iustin Pop | |
1182 | 2241e2b9 | Iustin Pop | def ParseTimespec(value): |
1183 | 2241e2b9 | Iustin Pop | """Parse a time specification.
|
1184 | 2241e2b9 | Iustin Pop |
|
1185 | 2241e2b9 | Iustin Pop | The following suffixed will be recognized:
|
1186 | 2241e2b9 | Iustin Pop |
|
1187 | 2241e2b9 | Iustin Pop | - s: seconds
|
1188 | 2241e2b9 | Iustin Pop | - m: minutes
|
1189 | 2241e2b9 | Iustin Pop | - h: hours
|
1190 | 2241e2b9 | Iustin Pop | - d: day
|
1191 | 2241e2b9 | Iustin Pop | - w: weeks
|
1192 | 2241e2b9 | Iustin Pop |
|
1193 | 2241e2b9 | Iustin Pop | Without any suffix, the value will be taken to be in seconds.
|
1194 | 2241e2b9 | Iustin Pop |
|
1195 | 2241e2b9 | Iustin Pop | """
|
1196 | 2241e2b9 | Iustin Pop | value = str(value)
|
1197 | 2241e2b9 | Iustin Pop | if not value: |
1198 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Empty time specification passed") |
1199 | 2241e2b9 | Iustin Pop | suffix_map = { |
1200 | 2241e2b9 | Iustin Pop | 's': 1, |
1201 | 2241e2b9 | Iustin Pop | 'm': 60, |
1202 | 2241e2b9 | Iustin Pop | 'h': 3600, |
1203 | 2241e2b9 | Iustin Pop | 'd': 86400, |
1204 | 2241e2b9 | Iustin Pop | 'w': 604800, |
1205 | 2241e2b9 | Iustin Pop | } |
1206 | 2241e2b9 | Iustin Pop | if value[-1] not in suffix_map: |
1207 | 2241e2b9 | Iustin Pop | try:
|
1208 | 2241e2b9 | Iustin Pop | value = int(value)
|
1209 | 2241e2b9 | Iustin Pop | except ValueError: |
1210 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Invalid time specification '%s'" % value) |
1211 | 2241e2b9 | Iustin Pop | else:
|
1212 | 2241e2b9 | Iustin Pop | multiplier = suffix_map[value[-1]]
|
1213 | 2241e2b9 | Iustin Pop | value = value[:-1]
|
1214 | 2241e2b9 | Iustin Pop | if not value: # no data left after stripping the suffix |
1215 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Invalid time specification (only" |
1216 | 2241e2b9 | Iustin Pop | " suffix passed)")
|
1217 | 2241e2b9 | Iustin Pop | try:
|
1218 | 2241e2b9 | Iustin Pop | value = int(value) * multiplier
|
1219 | 2241e2b9 | Iustin Pop | except ValueError: |
1220 | 2241e2b9 | Iustin Pop | raise errors.OpPrereqError("Invalid time specification '%s'" % value) |
1221 | 2241e2b9 | Iustin Pop | return value
|
1222 | 46fbdd04 | Iustin Pop | |
1223 | 46fbdd04 | Iustin Pop | |
1224 | 4040a784 | Iustin Pop | def GetOnlineNodes(nodes, cl=None, nowarn=False): |
1225 | 4040a784 | Iustin Pop | """Returns the names of online nodes.
|
1226 | 4040a784 | Iustin Pop |
|
1227 | 4040a784 | Iustin Pop | This function will also log a warning on stderr with the names of
|
1228 | 4040a784 | Iustin Pop | the online nodes.
|
1229 | 4040a784 | Iustin Pop |
|
1230 | 4040a784 | Iustin Pop | @param nodes: if not empty, use only this subset of nodes (minus the
|
1231 | 4040a784 | Iustin Pop | offline ones)
|
1232 | 4040a784 | Iustin Pop | @param cl: if not None, luxi client to use
|
1233 | 4040a784 | Iustin Pop | @type nowarn: boolean
|
1234 | 4040a784 | Iustin Pop | @param nowarn: by default, this function will output a note with the
|
1235 | 4040a784 | Iustin Pop | offline nodes that are skipped; if this parameter is True the
|
1236 | 4040a784 | Iustin Pop | note is not displayed
|
1237 | 4040a784 | Iustin Pop |
|
1238 | 4040a784 | Iustin Pop | """
|
1239 | 4040a784 | Iustin Pop | if cl is None: |
1240 | 4040a784 | Iustin Pop | cl = GetClient() |
1241 | 4040a784 | Iustin Pop | |
1242 | 2e7b8369 | Iustin Pop | result = cl.QueryNodes(names=nodes, fields=["name", "offline"], |
1243 | 2e7b8369 | Iustin Pop | use_locking=False)
|
1244 | 4040a784 | Iustin Pop | offline = [row[0] for row in result if row[1]] |
1245 | 4040a784 | Iustin Pop | if offline and not nowarn: |
1246 | 4040a784 | Iustin Pop | ToStderr("Note: skipping offline node(s): %s" % ", ".join(offline)) |
1247 | 4040a784 | Iustin Pop | return [row[0] for row in result if not row[1]] |
1248 | 4040a784 | Iustin Pop | |
1249 | 4040a784 | Iustin Pop | |
1250 | 46fbdd04 | Iustin Pop | def _ToStream(stream, txt, *args): |
1251 | 46fbdd04 | Iustin Pop | """Write a message to a stream, bypassing the logging system
|
1252 | 46fbdd04 | Iustin Pop |
|
1253 | 46fbdd04 | Iustin Pop | @type stream: file object
|
1254 | 46fbdd04 | Iustin Pop | @param stream: the file to which we should write
|
1255 | 46fbdd04 | Iustin Pop | @type txt: str
|
1256 | 46fbdd04 | Iustin Pop | @param txt: the message
|
1257 | 46fbdd04 | Iustin Pop |
|
1258 | 46fbdd04 | Iustin Pop | """
|
1259 | 46fbdd04 | Iustin Pop | if args:
|
1260 | 46fbdd04 | Iustin Pop | args = tuple(args)
|
1261 | 46fbdd04 | Iustin Pop | stream.write(txt % args) |
1262 | 46fbdd04 | Iustin Pop | else:
|
1263 | 46fbdd04 | Iustin Pop | stream.write(txt) |
1264 | 46fbdd04 | Iustin Pop | stream.write('\n')
|
1265 | 46fbdd04 | Iustin Pop | stream.flush() |
1266 | 46fbdd04 | Iustin Pop | |
1267 | 46fbdd04 | Iustin Pop | |
1268 | 46fbdd04 | Iustin Pop | def ToStdout(txt, *args): |
1269 | 46fbdd04 | Iustin Pop | """Write a message to stdout only, bypassing the logging system
|
1270 | 46fbdd04 | Iustin Pop |
|
1271 | 46fbdd04 | Iustin Pop | This is just a wrapper over _ToStream.
|
1272 | 46fbdd04 | Iustin Pop |
|
1273 | 46fbdd04 | Iustin Pop | @type txt: str
|
1274 | 46fbdd04 | Iustin Pop | @param txt: the message
|
1275 | 46fbdd04 | Iustin Pop |
|
1276 | 46fbdd04 | Iustin Pop | """
|
1277 | 46fbdd04 | Iustin Pop | _ToStream(sys.stdout, txt, *args) |
1278 | 46fbdd04 | Iustin Pop | |
1279 | 46fbdd04 | Iustin Pop | |
1280 | 46fbdd04 | Iustin Pop | def ToStderr(txt, *args): |
1281 | 46fbdd04 | Iustin Pop | """Write a message to stderr only, bypassing the logging system
|
1282 | 46fbdd04 | Iustin Pop |
|
1283 | 46fbdd04 | Iustin Pop | This is just a wrapper over _ToStream.
|
1284 | 46fbdd04 | Iustin Pop |
|
1285 | 46fbdd04 | Iustin Pop | @type txt: str
|
1286 | 46fbdd04 | Iustin Pop | @param txt: the message
|
1287 | 46fbdd04 | Iustin Pop |
|
1288 | 46fbdd04 | Iustin Pop | """
|
1289 | 46fbdd04 | Iustin Pop | _ToStream(sys.stderr, txt, *args) |
1290 | 479636a3 | Iustin Pop | |
1291 | 479636a3 | Iustin Pop | |
1292 | 479636a3 | Iustin Pop | class JobExecutor(object): |
1293 | 479636a3 | Iustin Pop | """Class which manages the submission and execution of multiple jobs.
|
1294 | 479636a3 | Iustin Pop |
|
1295 | 479636a3 | Iustin Pop | Note that instances of this class should not be reused between
|
1296 | 479636a3 | Iustin Pop | GetResults() calls.
|
1297 | 479636a3 | Iustin Pop |
|
1298 | 479636a3 | Iustin Pop | """
|
1299 | 479636a3 | Iustin Pop | def __init__(self, cl=None, verbose=True): |
1300 | 479636a3 | Iustin Pop | self.queue = []
|
1301 | 479636a3 | Iustin Pop | if cl is None: |
1302 | 479636a3 | Iustin Pop | cl = GetClient() |
1303 | 479636a3 | Iustin Pop | self.cl = cl
|
1304 | 479636a3 | Iustin Pop | self.verbose = verbose
|
1305 | 23b4b983 | Iustin Pop | self.jobs = []
|
1306 | 479636a3 | Iustin Pop | |
1307 | 479636a3 | Iustin Pop | def QueueJob(self, name, *ops): |
1308 | 23b4b983 | Iustin Pop | """Record a job for later submit.
|
1309 | 479636a3 | Iustin Pop |
|
1310 | 479636a3 | Iustin Pop | @type name: string
|
1311 | 479636a3 | Iustin Pop | @param name: a description of the job, will be used in WaitJobSet
|
1312 | 479636a3 | Iustin Pop | """
|
1313 | 23b4b983 | Iustin Pop | self.queue.append((name, ops))
|
1314 | 23b4b983 | Iustin Pop | |
1315 | 23b4b983 | Iustin Pop | def SubmitPending(self): |
1316 | 23b4b983 | Iustin Pop | """Submit all pending jobs.
|
1317 | 23b4b983 | Iustin Pop |
|
1318 | 23b4b983 | Iustin Pop | """
|
1319 | 23b4b983 | Iustin Pop | results = self.cl.SubmitManyJobs([row[1] for row in self.queue]) |
1320 | 23b4b983 | Iustin Pop | for ((status, data), (name, _)) in zip(results, self.queue): |
1321 | 23b4b983 | Iustin Pop | self.jobs.append((status, data, name))
|
1322 | 479636a3 | Iustin Pop | |
1323 | 479636a3 | Iustin Pop | def GetResults(self): |
1324 | 479636a3 | Iustin Pop | """Wait for and return the results of all jobs.
|
1325 | 479636a3 | Iustin Pop |
|
1326 | 479636a3 | Iustin Pop | @rtype: list
|
1327 | 479636a3 | Iustin Pop | @return: list of tuples (success, job results), in the same order
|
1328 | 479636a3 | Iustin Pop | as the submitted jobs; if a job has failed, instead of the result
|
1329 | 479636a3 | Iustin Pop | there will be the error message
|
1330 | 479636a3 | Iustin Pop |
|
1331 | 479636a3 | Iustin Pop | """
|
1332 | 23b4b983 | Iustin Pop | if not self.jobs: |
1333 | 23b4b983 | Iustin Pop | self.SubmitPending()
|
1334 | 479636a3 | Iustin Pop | results = [] |
1335 | 479636a3 | Iustin Pop | if self.verbose: |
1336 | 23b4b983 | Iustin Pop | ok_jobs = [row[1] for row in self.jobs if row[0]] |
1337 | 23b4b983 | Iustin Pop | if ok_jobs:
|
1338 | 23b4b983 | Iustin Pop | ToStdout("Submitted jobs %s", ", ".join(ok_jobs)) |
1339 | 23b4b983 | Iustin Pop | for submit_status, jid, name in self.jobs: |
1340 | 23b4b983 | Iustin Pop | if not submit_status: |
1341 | 23b4b983 | Iustin Pop | ToStderr("Failed to submit job for %s: %s", name, jid)
|
1342 | 23b4b983 | Iustin Pop | results.append((False, jid))
|
1343 | 23b4b983 | Iustin Pop | continue
|
1344 | 479636a3 | Iustin Pop | if self.verbose: |
1345 | 479636a3 | Iustin Pop | ToStdout("Waiting for job %s for %s...", jid, name)
|
1346 | 479636a3 | Iustin Pop | try:
|
1347 | 479636a3 | Iustin Pop | job_result = PollJob(jid, cl=self.cl)
|
1348 | 479636a3 | Iustin Pop | success = True
|
1349 | 479636a3 | Iustin Pop | except (errors.GenericError, luxi.ProtocolError), err:
|
1350 | 479636a3 | Iustin Pop | _, job_result = FormatError(err) |
1351 | 479636a3 | Iustin Pop | success = False
|
1352 | 479636a3 | Iustin Pop | # the error message will always be shown, verbose or not
|
1353 | 479636a3 | Iustin Pop | ToStderr("Job %s for %s has failed: %s", jid, name, job_result)
|
1354 | 479636a3 | Iustin Pop | |
1355 | 479636a3 | Iustin Pop | results.append((success, job_result)) |
1356 | 479636a3 | Iustin Pop | return results
|
1357 | 479636a3 | Iustin Pop | |
1358 | 479636a3 | Iustin Pop | def WaitOrShow(self, wait): |
1359 | 479636a3 | Iustin Pop | """Wait for job results or only print the job IDs.
|
1360 | 479636a3 | Iustin Pop |
|
1361 | 479636a3 | Iustin Pop | @type wait: boolean
|
1362 | 479636a3 | Iustin Pop | @param wait: whether to wait or not
|
1363 | 479636a3 | Iustin Pop |
|
1364 | 479636a3 | Iustin Pop | """
|
1365 | 479636a3 | Iustin Pop | if wait:
|
1366 | 479636a3 | Iustin Pop | return self.GetResults() |
1367 | 479636a3 | Iustin Pop | else:
|
1368 | 23b4b983 | Iustin Pop | if not self.jobs: |
1369 | 23b4b983 | Iustin Pop | self.SubmitPending()
|
1370 | 23b4b983 | Iustin Pop | for status, result, name in self.jobs: |
1371 | 23b4b983 | Iustin Pop | if status:
|
1372 | 23b4b983 | Iustin Pop | ToStdout("%s: %s", result, name)
|
1373 | 23b4b983 | Iustin Pop | else:
|
1374 | 23b4b983 | Iustin Pop | ToStderr("Failure for %s: %s", name, result) |