virt-login-shell (1)
Leading comments
Automatically generated by Pod::Man 2.28 (Pod::Simple 3.31) Standard preamble: ========================================================================
NAME
virt-login-shell - tool to execute a shell within a container matching the users nameSYNOPSIS
virt-login-shell [OPTION
]
DESCRIPTION
The virt-login-shell program is a setuid shell that is used to join anLXC
container that matches the user's name. If the container is not
running, virt-login-shell will attempt to start the container.
virt-login-shell is not allowed to be run by root. Normal users will get
added to a container that matches their username, if it exists, and they are
configured in /etc/libvirt/virt-login-shell.conf.
The basic structure of most virt-login-shell usage is:
virt-login-shell
OPTIONS
- -c CMD
-
Instruct the shell to run CMDinstead of presenting an interactive shell prompt.
- -h, --help
- Display command line help usage then exit.
- -V, --version
- Display version information then exit.
CONFIG
By default, virt-login-shell will execute the /bin/sh program for the user. You can modify this behaviour by defining the shell variable in /etc/libvirt/virt-login-shell.conf.eg. shell = [ ``/bin/bash'' ]
If the 'auto_shell' config option is set then it will attempt to automatically detect the shell from /etc/password inside the container. This should only be done if the container has a separate /etc directory from the host, otherwise it will end up recursively invoking virt-login-shell.
eg. auto_shell = 1
By default no users are allowed to use virt-login-shell, if you want to allow certain users to use virt-login-shell, you need to modify the allowed_users variable in /etc/libvirt/virt-login-shell.conf.
eg. allowed_users = [ ``tom'', ``dick'', ``harry'' ]
EXIT STATUS
virt-login-shell normally returns the exit status of the command it executed. If the command was killed by a signal, but that signal is not fatal to virt-login-shell, then it returns the signal number plus 128.Exit status generated by virt-login-shell itself:
- 0 An option was used to learn more about this binary.
- 125 Generic error before attempting execution of the configured shell; for example, if libvirtd is not running.
- 126 The configured shell exists but could not be executed.
- 127 The configured shell could not be found.
BUGS
Report any bugs discovered to the libvirt community via the mailing list <libvirt.org/contact.html> or bug tracker <libvirt.org/bugs.html>. Alternatively report bugs to your software distributor / vendor.AUTHORS
Please refer to the AUTHORS file distributed with libvirt. Daniel Walsh <dwalsh at redhat dot com>
COPYRIGHT
Copyright (C) 2013-2014 Red Hat, Inc., and the authors listed in the libvirtAUTHORS
file.
LICENSE
virt-login-shell is distributed under the terms of theGNU LGPL
v2+.
This is free software; see the source for copying conditions. There
is NO
warranty; not even for MERCHANTABILITY
or FITNESS FOR A PARTICULAR
PURPOSE