--- drvlxc-orig.html 2009-04-15 09:36:48.000000000 -0500 +++ drvlxc.html 2009-04-15 09:44:27.000000000 -0500 @@ -140,7 +140,89 @@ </div> <div id="content"> - <h1>LXC container driver</h1> +<h1>LXC container driver</h1> +<p> +The libvirt LXC driver manages "Linux Containers". Containers are sets of processes +with private namespaces which can (but don't always) look like separate machines, but +do not have their own OS. Here are two example configurations. The first is a very +light-weight "application container" which does not have it's own root image. You would +start it using +</p> + +<h3>Example config version 1</h3> +<p> +<pre> +<domain type='lxc'> + <name>vm1</name> + <memory>500000</memory> + <os> + <type>exe</type> + <init>/bin/sh</init> + </os> + <vcpu>1</vcpu> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/libexec/libvirt_lxc</emulator> + <interface type='network'> + <source network='default'/> + </interface> + <console type='pty' /> + </devices> +</domain> +</pre> +</p> + +<p> +The next example assumes there is a private root filesystem +(perhaps hand-crafted using busybox, or installed from media, +debootstrap, whatever) under /opt/vm-1-root: +</p> +<p> +<pre> +<domain type='lxc'> + <name>vm1</name> + <memory>32768</memory> + <os> + <type>exe</type> + <init>/init</init> + </os> + <vcpu>1</vcpu> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/libexec/libvirt_lxc</emulator> + <filesystem type='mount'> + <source dir='/opt/vm-1-root'/> + <target dir='/'/> + </filesystem> + <interface type='network'> + <source network='default'/> + </interface> + <console type='pty' /> + </devices> +</domain> + +</pre> +</p> + +<p> +In both cases, you can define and start a container using: +<pre> +lxc --connect lxc:/// define v1.xml +lxc --connect lxc:/// start v1.xml +</pre> +and then get a console using: +<pre> +lxc --connect lxc:/// console v1 +</pre> +Now doing 'ps -ef' will only show processes in the container, for +instance. +</p> </div> </div> <div id="footer">