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d823d5b9 | 1 | <!-- |
2 | ||
3 | lxc: linux Container library | |
4 | ||
5 | (C) Copyright IBM Corp. 2007, 2008 | |
6 | ||
7 | Authors: | |
8 | Daniel Lezcano <dlezcano at fr.ibm.com> | |
9 | ||
10 | This library is free software; you can redistribute it and/or | |
11 | modify it under the terms of the GNU Lesser General Public | |
12 | License as published by the Free Software Foundation; either | |
13 | version 2.1 of the License, or (at your option) any later version. | |
14 | ||
15 | This library is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public | |
21 | License along with this library; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | ||
24 | --> | |
25 | ||
99e4008c MN |
26 | <!DOCTYPE refentry PUBLIC "-//Davenport//DTD DocBook V3.0//EN" [ |
27 | ||
10fba81b | 28 | <!ENTITY commonoptions SYSTEM "@builddir@/common_options.sgml"> |
99e4008c MN |
29 | <!ENTITY seealso SYSTEM "@builddir@/see_also.sgml"> |
30 | ]> | |
d823d5b9 | 31 | |
32 | <refentry> | |
33 | ||
34 | <docinfo><date>@LXC_GENERATE_DATE@</date></docinfo> | |
35 | ||
36 | <refmeta> | |
37 | <refentrytitle>lxc-execute</refentrytitle> | |
38 | <manvolnum>1</manvolnum> | |
39 | </refmeta> | |
40 | ||
41 | <refnamediv> | |
42 | <refname>lxc-execute</refname> | |
43 | ||
44 | <refpurpose> | |
45 | run an application inside a container. | |
46 | </refpurpose> | |
47 | </refnamediv> | |
48 | ||
49 | <refsynopsisdiv> | |
50 | <cmdsynopsis> | |
51 | <command>lxc-execute <replaceable>-n name</replaceable> | |
20117280 CLG |
52 | <optional>-f config_file</optional> <optional>-s KEY=VAL |
53 | </optional> | |
dfafa5a5 | 54 | <optional>--</optional> |
11eaec4c | 55 | <replaceable>command</replaceable></command> |
d823d5b9 | 56 | </cmdsynopsis> |
57 | </refsynopsisdiv> | |
58 | ||
59 | <refsect1> | |
60 | <title>Description</title> | |
61 | ||
62 | <para> | |
94b81f61 MN |
63 | <command>lxc-execute</command> runs the specified |
64 | <replaceable>command</replaceable> inside the container | |
65 | specified by <replaceable>name</replaceable>. | |
66 | </para> | |
67 | <para> | |
68 | It will setup the container | |
69 | according to the configuration previously defined with the | |
70 | lxc-create command or with the configuration file parameter. | |
71 | If no configuration is | |
72 | defined, the default isolation is used. | |
d823d5b9 | 73 | </para> |
d823d5b9 | 74 | <para> |
75 | This command is mainly used when you want to quickly launch an | |
94b81f61 | 76 | application in an isolated environment. |
d823d5b9 | 77 | </para> |
94b81f61 MN |
78 | <para> |
79 | <command>lxc-execute</command> command will run the | |
80 | specified command into the container via an intermediate | |
81 | process, <command>lxc-init</command>. | |
82 | This lxc-init after launching the specified command, | |
83 | will wait for its end and all other reparented processes. | |
84 | (that allows to support daemons in the container). | |
85 | In other words, in the | |
86 | container, <command>lxc-init</command> has the pid 1 and the | |
87 | first process of the application has the pid 2. | |
88 | </para> | |
e4b3fe58 | 89 | <para> |
90 | The above <command>lxc-init</command> is designed to forward received | |
91 | signals to the started command. | |
92 | So <command>lxc-kill</command> (1) sent signal is received | |
93 | by the user specified command (pid 2 in the container). | |
94 | </para> | |
d823d5b9 | 95 | </refsect1> |
96 | ||
97 | <refsect1> | |
98 | <title>Options</title> | |
99 | <variablelist> | |
100 | ||
d823d5b9 | 101 | <varlistentry> |
102 | <term> | |
94b81f61 | 103 | <option>-f, --rcfile <replaceable>config_file</replaceable></option> |
d823d5b9 | 104 | </term> |
105 | <listitem> | |
106 | <para> | |
107 | Specify the configuration file to configure the virtualization | |
108 | and isolation functionalities for the container. | |
109 | </para> | |
94b81f61 MN |
110 | <para> |
111 | This configuration file if present will be used even if there is | |
112 | already a configuration file present in the previously created | |
113 | container (via lxc-create). | |
114 | </para> | |
d823d5b9 | 115 | </listitem> |
116 | </varlistentry> | |
20117280 CLG |
117 | <varlistentry> |
118 | <term> | |
94b81f61 | 119 | <option>-s, --define <replaceable>KEY=VAL</replaceable></option> |
20117280 CLG |
120 | </term> |
121 | <listitem> | |
122 | <para> | |
123 | Assign value <replaceable>VAL</replaceable> to configuration | |
124 | variable <replaceable>KEY</replaceable>. This overrides any | |
125 | assignment done in <replaceable>config_file</replaceable>. | |
126 | </para> | |
127 | </listitem> | |
128 | </varlistentry> | |
dfafa5a5 CLG |
129 | <varlistentry> |
130 | <term><option>--</option></term> | |
131 | <listitem> | |
132 | <para> | |
133 | Signal the end of options and disables further option | |
134 | processing. Any arguments after the -- are treated as | |
135 | arguments. | |
136 | </para> | |
137 | <para> | |
138 | This option is useful when you want to execute, with the | |
139 | command <command>lxc-execute</command>, a command line | |
140 | with its own options. | |
141 | </para> | |
142 | </listitem> | |
143 | </varlistentry> | |
d823d5b9 | 144 | |
145 | </variablelist> | |
146 | ||
147 | </refsect1> | |
148 | ||
10fba81b MN |
149 | &commonoptions; |
150 | ||
d823d5b9 | 151 | <refsect1> |
152 | <title>Diagnostic</title> | |
153 | ||
154 | <variablelist> | |
155 | ||
156 | <varlistentry> | |
157 | <term>The container is busy</term> | |
158 | <listitem> | |
159 | <para> | |
160 | The specified container is already running an | |
161 | application. You should stop it before reuse this | |
162 | container or create a new one. | |
163 | </para> | |
164 | </listitem> | |
165 | </varlistentry> | |
166 | ||
167 | </variablelist> | |
168 | ||
169 | </refsect1> | |
170 | ||
99e4008c | 171 | &seealso; |
d823d5b9 | 172 | |
173 | <refsect1> | |
174 | <title>Author</title> | |
175 | <para>Daniel Lezcano <email>daniel.lezcano@free.fr</email></para> | |
176 | </refsect1> | |
177 | ||
178 | </refentry> | |
179 | ||
180 | <!-- Keep this comment at the end of the file | |
181 | Local variables: | |
182 | mode: sgml | |
183 | sgml-omittag:t | |
184 | sgml-shorttag:t | |
185 | sgml-minimize-attributes:nil | |
186 | sgml-always-quote-attributes:t | |
187 | sgml-indent-step:2 | |
188 | sgml-indent-data:t | |
189 | sgml-parent-document:nil | |
190 | sgml-default-dtd-file:nil | |
191 | sgml-exposed-tags:nil | |
192 | sgml-local-catalogs:nil | |
193 | sgml-local-ecat-files:nil | |
194 | End: | |
195 | --> |