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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 | ||
26 | <!DOCTYPE refentry PUBLIC "-//Davenport//DTD DocBook V3.0//EN" [ | |
27 | ||
28 | <!ENTITY commonoptions SYSTEM "@builddir@/common_options.sgml"> | |
29 | <!ENTITY seealso SYSTEM "@builddir@/see_also.sgml"> | |
30 | ]> | |
31 | ||
32 | <refentry> | |
33 | ||
34 | <docinfo><date>@LXC_GENERATE_DATE@</date></docinfo> | |
35 | ||
36 | <refmeta> | |
37 | <refentrytitle>lxc-restart</refentrytitle> | |
38 | <manvolnum>1</manvolnum> | |
39 | <refmiscinfo>IBM</refmiscinfo> | |
40 | </refmeta> | |
41 | ||
42 | <refnamediv> | |
43 | <refname>lxc-restart</refname> | |
44 | ||
45 | <refpurpose> | |
9887d6c6 | 46 | restart a container from a file (not implemented yet) |
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47 | </refpurpose> |
48 | </refnamediv> | |
49 | ||
50 | <refsynopsisdiv> | |
51 | <cmdsynopsis> | |
52 | <command>lxc-restart <optional>-f | |
53 | config_file</optional><optional>-s KEY=VAL</optional> | |
54 | --statefile=<replaceable>FILE</replaceable> | |
55 | --statefd=<replaceable>FD</replaceable></command> | |
a3e80ccc | 56 | <arg choice="req"><option>--name=<replaceable>NAME</replaceable></option></arg> |
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57 | </cmdsynopsis> |
58 | </refsynopsisdiv> | |
59 | ||
60 | <refsect1> | |
61 | <title>Description</title> | |
62 | ||
63 | <para> | |
64 | <command>lxc-restart</command> is a command | |
65 | to restart an application from the state read in the specified | |
66 | <replaceable>FILE</replaceable>, in a container with the | |
67 | identifier <replaceable>NAME</replaceable>. | |
68 | If the option <option>--pause</option> | |
69 | is specified, the application will be stopped after the | |
70 | restart just before resuming execution. The command | |
71 | <command>lxc-unfreeze</command> will be needed to resume its | |
72 | execution. | |
73 | </para> | |
74 | </refsect1> | |
75 | ||
76 | <refsect1> | |
77 | <title>Restart Options</title> | |
78 | ||
79 | <variablelist> | |
80 | <varlistentry> | |
81 | <term><option>-S, --statefile=<replaceable>FILE</replaceable></option></term> | |
82 | <listitem> | |
83 | <para> | |
84 | read the state of the container in this | |
85 | <replaceable>FILE</replaceable>. | |
86 | This option is exclusive with <option>--statefd</option> below. | |
87 | </para> | |
88 | </listitem> | |
89 | </varlistentry> | |
90 | ||
91 | <varlistentry> | |
92 | <term><option>-d, --statefd=<replaceable>FD</replaceable></option></term> | |
93 | <listitem> | |
94 | <para> | |
95 | read the state of the container in this | |
96 | <replaceable>FD</replaceable> file descriptor. | |
97 | This option is exclusive with above <option>--statefile</option>. | |
98 | </para> | |
99 | </listitem> | |
100 | </varlistentry> | |
101 | ||
102 | <varlistentry> | |
103 | <term><option>-p</option></term> | |
104 | <listitem> | |
105 | <para> | |
106 | Pause container processes after restart. The container will be | |
107 | stopped until you resume it with the lxc-unfreeze command. | |
108 | </para> | |
109 | </listitem> | |
110 | </varlistentry> | |
111 | ||
112 | <varlistentry> | |
113 | <term><option>-f, --rcfile=<replaceable>config_file</replaceable></option></term> | |
114 | <listitem> | |
115 | <para> | |
116 | Specify the configuration file to configure the | |
117 | virtualization and isolation functionalities for the | |
118 | container. This parameter should be specified if it was | |
119 | specified for the <command>lxc-execute</command> | |
120 | or <command>lxc-start</command> commands or if the | |
121 | container configuration has to be changed at restart. The | |
122 | latter may fail if the needed resources are not available | |
123 | for the restart. If the container was created and | |
124 | configured with <command>lxc-create</command>, this option | |
125 | is not needed, the configuration will be automatically | |
126 | found. | |
127 | </para> | |
128 | </listitem> | |
129 | </varlistentry> | |
130 | ||
131 | <varlistentry> | |
132 | <term> | |
133 | <option>-s <replaceable>KEY=VAL</replaceable></option> | |
134 | </term> | |
135 | <listitem> | |
136 | <para> | |
137 | Assign value <replaceable>VAL</replaceable> to configuration | |
138 | variable <replaceable>KEY</replaceable>. This overrides any | |
139 | assignment done in <replaceable>config_file</replaceable>. | |
140 | </para> | |
141 | </listitem> | |
142 | </varlistentry> | |
143 | ||
144 | </variablelist> | |
145 | ||
146 | </refsect1> | |
147 | ||
148 | &commonoptions; | |
149 | ||
150 | <refsect1> | |
151 | <title>Examples</title> | |
152 | <para> | |
153 | To start a new container <literal>123</literal> computing decimals of pi | |
154 | </para> | |
155 | <programlisting> | |
156 | lxc-execute -n 123 -- pi1 -d 500000 | |
157 | lxc-execute --name=123 -- pi1 -d 500000 | |
158 | </programlisting> | |
159 | ||
160 | <para> | |
161 | to checkpoint the same container in <emphasis>dump-death</emphasis> | |
162 | mode | |
163 | </para> | |
164 | <programlisting> | |
165 | lxc-checkpoint -n 123 -S /share/123/chkpt1 -k | |
166 | lxc-checkpoint --name=123 --statefile=/share/123/chkpt1 -k | |
167 | </programlisting> | |
168 | ||
169 | <para> | |
170 | and to restart the same container with a different id | |
171 | </para> | |
172 | <programlisting> | |
173 | lxc-restart -n 200 -S /share/123/chkpt1 | |
174 | lxc-restart --name=200 --statefile=/share/123/chkpt1 | |
175 | </programlisting> | |
176 | ||
177 | </refsect1> | |
178 | ||
9887d6c6 | 179 | <refsect1> |
a3e80ccc | 180 | <title>Notes</title> |
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181 | <para>Actually, this command does not operate. Its description |
182 | helps to define a CLI api for future Checkpoint / Restart | |
183 | solution</para> | |
184 | </refsect1> | |
185 | ||
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186 | &seealso; |
187 | ||
188 | <refsect1> | |
189 | <title>Author</title> | |
190 | <para>Daniel Lezcano <email>daniel.lezcano@free.fr</email></para> | |
191 | </refsect1> | |
192 | ||
193 | </refentry> | |
194 | ||
195 | <!-- Keep this comment at the end of the file | |
196 | Local variables: | |
197 | mode: sgml | |
198 | sgml-omittag:t | |
199 | sgml-shorttag:t | |
200 | sgml-minimize-attributes:nil | |
201 | sgml-always-quote-attributes:t | |
202 | sgml-indent-step:2 | |
203 | sgml-indent-data:t | |
204 | sgml-parent-document:nil | |
205 | sgml-default-dtd-file:nil | |
206 | sgml-exposed-tags:nil | |
207 | sgml-local-catalogs:nil | |
208 | sgml-local-ecat-files:nil | |
209 | End: | |
210 | --> |