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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | COMMON OPTIONS | DIAGNOSTIC | SEE ALSO | COLOPHON |
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lxc-execute(1) lxc-execute(1)
lxc-execute - run an application inside a container.
lxc-execute {-n name} [-d] [-f config_file] [-s KEY=VAL] [-u,
--uid uid] [-g, --gid gid] [-- command]
lxc-execute runs the specified command inside the container speci‐
fied by name.
It will setup the container according to the configuration previ‐
ously defined with the lxc-create command or with the configura‐
tion file parameter. If no configuration is defined, the default
isolation is used.
This command is mainly used when you want to quickly launch an ap‐
plication in an isolated environment.
lxc-execute command will run the specified command into the con‐
tainer via an intermediate process, lxc-init. This lxc-init after
launching the specified command, will wait for its end and all
other reparented processes. (to support daemons in the contain‐
er). In other words, in the container, lxc-init has the pid 1 and
the first process of the application has the pid 2.
The above lxc-init is designed to forward received signals to the
started command.
-f, --rcfile config_file
Specify the configuration file to configure the virtualiza‐
tion and isolation functionalities for the container.
This configuration file if present will be used even if
there is already a configuration file present in the previ‐
ously created container (via lxc-create).
-s, --define KEY=VAL
Assign value VAL to configuration variable KEY. This over‐
rides any assignment done in config_file.
-d, --daemon
Run the container as a daemon. As the container has no more
tty, if an error occurs nothing will be displayed, the log
file can be used to check the error.
-u, --uid uid
Executes the command with user ID (use numerical value) uid
inside the container.
--g, --gid gid
Executes the command with group ID (use numerical value)
gid inside the container.
-- Signal the end of options and disables further option pro‐
cessing. Any arguments after the -- are treated as argu‐
ments to command.
This option is useful when you want specify options to com‐
mand and don't want lxc-execute to interpret them.
These options are common to most of lxc commands.
-?, -h, --help
Print a longer usage message than normal.
--usage
Give the usage message
-q, --quiet
mute on
-P, --lxcpath=PATH
Use an alternate container path. The default is
/var/lib/lxc.
-o, --logfile=FILE
Output to an alternate log FILE. The default is no log.
-l, --logpriority=LEVEL
Set log priority to LEVEL. The default log priority is ER‐
ROR. Possible values are : FATAL, ALERT, CRIT, WARN, ERROR,
NOTICE, INFO, DEBUG, TRACE.
Note that this option is setting the priority of the events
log in the alternate log file. It do not have effect on the
ERROR events log on stderr.
-n, --name=NAME
Use container identifier NAME. The container identifier
format is an alphanumeric string.
--rcfile=FILE
Specify the configuration file to configure the virtualiza‐
tion and isolation functionalities for the container.
This configuration file if present will be used even if
there is already a configuration file present in the previ‐
ously created container (via lxc-create).
--version
Show the version number.
The container is busy
The specified container is already running an application.
You should stop it before reuse this container or create a
new one.
lxc(7), lxc-create(1), lxc-copy(1), lxc-destroy(1), lxc-start(1),
lxc-stop(1), lxc-execute(1), lxc-console(1), lxc-monitor(1),
lxc-wait(1), lxc-cgroup(1), lxc-ls(1), lxc-info(1), lxc-freeze(1),
lxc-unfreeze(1), lxc-attach(1), lxc.conf(5)
This page is part of the lxc (Linux containers) project. Informa‐
tion about the project can be found at
⟨http://linuxcontainers.org/⟩. If you have a bug report for this
manual page, send it to lxc-devel@lists.linuxcontainers.org. This
page was obtained from the project's upstream Git repository
⟨https://github.com/lxc/lxc.git⟩ on 2025-02-02. (At that time,
the date of the most recent commit that was found in the
repository was 2025-01-24.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
2024-04-03 lxc-execute(1)
Pages that refer to this page: lxc-attach(1), lxc-autostart(1), lxc-cgroup(1), lxc-checkconfig(1), lxc-checkpoint(1), lxc-config(1), lxc-console(1), lxc-copy(1), lxc-create(1), lxc-destroy(1), lxc-device(1), lxc-execute(1), lxc-freeze(1), lxc-info(1), lxc-ls(1), lxc-monitor(1), lxc-snapshot(1), lxc-start(1), lxc-stop(1), lxc-top(1), lxc-unfreeze(1), lxc-unshare(1), lxc-update-config(1), lxc-usernsexec(1), lxc-wait(1), lxc.container.conf(5), lxc.system.conf(5), lxc(7)
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HTML rendering created 2025-02-02 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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