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220 lines
8.8 KiB
HTML
220 lines
8.8 KiB
HTML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<!--
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This file is autogenerated from drvlxc.html.in
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Do not edit this file. Changes will be lost.
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-->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
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<title>libvirt: LXC container driver</title>
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<input id="query" name="query" type="text" size="12" value="" />
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<input id="submit" name="submit" type="submit" value="Search" />
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</div></form>
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<div id="menu">
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<ul class="l0"><li>
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<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
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<a title="Hypervisor specific driver information" class="active" href="drivers.html">Drivers</a>
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<a title="Driver for QEMU, KQEMU, KVM and Xenner" class="inactive" href="drvqemu.html">QEMU / KVM</a>
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<a title="Driver for the OpenVZ container technology" class="inactive" href="drvopenvz.html">OpenVZ</a>
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<a title="Driver for the storage management APIs" class="inactive" href="storage.html">Storage</a>
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<a title="Driver for VirtualBox" class="inactive" href="drvvbox.html">VirtualBox</a>
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<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
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<a title="Working on the internals of libvirt API, driver and daemon code" class="inactive" href="internals.html">Internals</a>
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<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
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<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
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<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
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</div>
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</li></ul>
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</div>
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<div id="content">
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<h1>LXC container driver</h1>
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<p>
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The libvirt LXC driver manages "Linux Containers". Containers are sets of processes
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with private namespaces which can (but don't always) look like separate machines, but
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do not have their own OS. Here are two example configurations. The first is a very
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light-weight "application container" which does not have it's own root image. You would
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start it using
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</p>
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<h3>Example config version 1</h3>
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<p></p>
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<pre>
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<domain type='lxc'>
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<name>vm1</name>
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<memory>500000</memory>
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<os>
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<type>exe</type>
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<init>/bin/sh</init>
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</os>
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<vcpu>1</vcpu>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/libexec/libvirt_lxc</emulator>
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<interface type='network'>
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<source network='default'/>
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</interface>
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<console type='pty' />
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</devices>
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</domain>
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</pre>
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<p>
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The next example assumes there is a private root filesystem
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(perhaps hand-crafted using busybox, or installed from media,
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debootstrap, whatever) under /opt/vm-1-root:
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</p>
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<p></p>
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<pre>
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<domain type='lxc'>
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<name>vm1</name>
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<memory>32768</memory>
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<os>
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<type>exe</type>
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<init>/init</init>
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</os>
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<vcpu>1</vcpu>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/libexec/libvirt_lxc</emulator>
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<filesystem type='mount'>
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<source dir='/opt/vm-1-root'/>
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<target dir='/'/>
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</filesystem>
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<interface type='network'>
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<source network='default'/>
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</interface>
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<console type='pty' />
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</devices>
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</domain>
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</pre>
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<p>
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In both cases, you can define and start a container using:</p>
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<pre>
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virsh --connect lxc:/// define v1.xml
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virsh --connect lxc:/// start v1.xml
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</pre>
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<pre>
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virsh --connect lxc:/// console v1
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</pre>
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<p>Now doing 'ps -ef' will only show processes in the container, for
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instance.
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</p>
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</div>
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</div>
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<div id="footer">
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<p id="sponsor">
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Sponsored by:<br /><a href="http://et.redhat.com/"><img src="et.png" alt="Project sponsored by Red Hat Emerging Technology" /></a></p>
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</div>
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</body>
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</html>
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