1lxc-execute(1) lxc-execute(1)
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6 lxc-execute - run an application inside a container.
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9 lxc-execute {-n name} [-d] [-f config_file] [-s KEY=VAL] [-- command]
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12 lxc-execute runs the specified command inside the container specified
13 by name.
14 It will setup the container according to the configuration previously
16 defined with the lxc-create command or with the configuration file pa‐
17 rameter. If no configuration is defined, the default isolation is
18 used.
19 This command is mainly used when you want to quickly launch an applica‐
21 tion in an isolated environment.
22 lxc-execute command will run the specified command into the container
24 via an intermediate process, lxc-init. This lxc-init after launching
25 the specified command, will wait for its end and all other reparented
26 processes. (to support daemons in the container). In other words, in
27 the container, lxc-init has the pid 1 and the first process of the ap‐
28 plication has the pid 2.
29 The above lxc-init is designed to forward received signals to the
31 started command.
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34 -f, --rcfile config_file
35 Specify the configuration file to configure the virtualization
36 and isolation functionalities for the container.
37 This configuration file if present will be used even if there is
39 already a configuration file present in the previously created
40 container (via lxc-create).
41 -s, --define KEY=VAL
43 Assign value VAL to configuration variable KEY. This overrides
44 any assignment done in config_file.
45 -d, --daemon
47 Run the container as a daemon. As the container has no more tty,
48 if an error occurs nothing will be displayed, the log file can
49 be used to check the error.
50 -- Signal the end of options and disables further option process‐
52 ing. Any arguments after the -- are treated as arguments to com‐
53 mand.
54 This option is useful when you want specify options to command
56 and don't want lxc-execute to interpret them.
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59 These options are common to most of lxc commands.
60 -?, -h, --help
62 Print a longer usage message than normal.
63 --usage
65 Give the usage message
66 -q, --quiet
68 mute on
69 -P, --lxcpath=PATH
71 Use an alternate container path. The default is /var/lib/lxc.
72 -o, --logfile=FILE
74 Output to an alternate log FILE. The default is no log.
75 -l, --logpriority=LEVEL
77 Set log priority to LEVEL. The default log priority is ERROR.
78 Possible values are : FATAL, CRIT, WARN, ERROR, NOTICE, INFO,
79 DEBUG.
80 Note that this option is setting the priority of the events log
82 in the alternate log file. It do not have effect on the ERROR
83 events log on stderr.
84 -n, --name=NAME
86 Use container identifier NAME. The container identifier format
87 is an alphanumeric string.
88 --rcfile=FILE
90 Specify the configuration file to configure the virtualization
91 and isolation functionalities for the container.
92 This configuration file if present will be used even if there is
94 already a configuration file present in the previously created
95 container (via lxc-create).
96 --version
98 Show the version number.
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101 The container is busy
102 The specified container is already running an application. You
103 should stop it before reuse this container or create a new one.
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106 lxc(7), lxc-create(1), lxc-copy(1), lxc-destroy(1), lxc-start(1), lxc-
107 stop(1), lxc-execute(1), lxc-console(1), lxc-monitor(1), lxc-wait(1),
108 lxc-cgroup(1), lxc-ls(1), lxc-info(1), lxc-freeze(1), lxc-unfreeze(1),
109 lxc-attach(1), lxc.conf(5)
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112 Daniel Lezcano <daniel.lezcano@free.fr>
113 2019-09-09 lxc-execute(1)