NAME

       lxc-execute - run an application inside a container.

SYNOPSIS

       lxc-execute {-n name} [-d] [-f config_file] [-s KEY=VAL] [-u, --uid uid] [-g, --gid gid] [-- command]

DESCRIPTION

       lxc-execute runs the specified command inside the container specified by name.

       It will setup the container according to the configuration previously defined with the lxc-create command
       or with the configuration file parameter.  If no configuration is defined, the default isolation is used.

       This command is mainly used when you want to quickly launch an application in an isolated environment.

       lxc-execute command will run the specified command into the container 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 container).  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.

OPTIONS

       -f, --rcfile config_file
              Specify  the  configuration file to configure the virtualization 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 previously created container (via lxc-create).

       -s, --define KEY=VAL
              Assign value VAL to configuration variable KEY. This overrides 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 uid inside the container.

       --g, --gid gid
              Executes the command with group ID gid inside the container.

       --     Signal the end of options and disables further option processing. Any arguments after the  --  are
              treated as arguments to command.

              This  option  is  useful  when  you  want specify options to command and don't want lxc-execute to
              interpret them.

COMMON OPTIONS

       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 ERROR. 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 virtualization 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 previously created container (via lxc-create).

       --version
              Show the version number.

DIAGNOSTIC

       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.

SEE ALSO

       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)

AUTHOR

       Daniel Lezcano <daniel.lezcano@free.fr>

                                                   2022-02-04                                     lxc-execute(1)