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<h1>OpenNebula Virtual Infrastructure Manager driver</h1>
<p><a name="toc"></a><a href="http://opennebula.org/">OpenNebula</a>
is a Virtual Infrastructure Manager that controls Virtual Machines (VM) in a pool of distributed resources
by orchestrating network, storage and virtualization technologies. The OpenNebula driver lets you manage your private or hybrid (<a href="http://aws.amazon.com/ec2/">Amazon EC2</a> or <a href="http://www.elastichosts.com/">Elastic Hosts</a> based) cloud using a standard libvirt interface, including the API as well as the related
tools and VM description files.</p>
<h2>
<a name="prereq"></a>Deployment pre-requisites</h2>
<ul>
<li>
<p style="margin-bottom: 0in">A working OpenNebula installation,
	version 1.2 or higher.
	</p>
	</li>
</ul>
<h2>
<a name="uris"></a>Connections to OpenNebula driver</h2>
<p>The Uri of the driver protocol is "one". Some example
connection Uris for the driver are:
</p>
<pre>    one:///                      (local access)
    one+unix:///                 (local access)
    one://example.com/           (remote access)
    one+tcp://example.com/       (remote access, SASl/Kerberos)
    one+ssh://user@example.com/  (remote access, SSH tunnelled)
    </pre>
<h2>
<a name="xmlconfig"></a>Example domain XML config</h2>
<p>There are some limitations on the XML attributes that may be
specified when interfacing OpenNebula. The following xml example
details the attributes and options supported by the OpenNebula
driver:</p> 

<h3>Paravirtualized guest direct kernel boot 
</h3>
<pre>    &lt;domain type='one'&gt;
    &lt;name&gt;vm01&lt;/name&gt;
    &lt;memory&gt;32768&lt;/memory&gt;
    &lt;vcpu&gt;1&lt;/vcpu&gt;

    &lt;os&gt;
        &lt;type&gt;linux&lt;/type&gt;
        &lt;kernel&gt;/boot/vmlinuz-2.6.24-17-xen&lt;/kernel&gt;
        &lt;initrd&gt;/boot/initrd.img-2.6.24-17-xen&lt;/initrd&gt;
        &lt;cmdline&gt;&lt;/cmdline&gt;
        &lt;root&gt;sda1&lt;/root&gt;
    &lt;/os&gt;

    &lt;devices&gt;

        &lt;disk type='file' device='disk'&gt;
            &lt;source file='/images/sgehosts/01/disk.img'/&gt;
            &lt;target dev='sda1'/&gt;
        &lt;/disk&gt;

        &lt;disk type='file' device='disk'&gt;
            &lt;source file='/images/sgehosts/01/swap.img'/&gt;
            &lt;target dev='sda2'/&gt;
        &lt;/disk&gt;

        &lt;disk type='file' device='cdrom'&gt;
            &lt;source file='/images/iso/cdrom.iso'/&gt;
            &lt;target dev='hdc'/&gt;
            &lt;readonly/&gt;
        &lt;/disk&gt;


        &lt;!--BRIDGE--&gt;
        &lt;interface type='bridge'&gt;
            &lt;source bridge='eth0'/&gt;
            &lt;mac address='00:16:3e:5d:c7:9e'/&gt;
        &lt;/interface&gt;

        &lt;!--ONE Network--&gt; 
        &lt;interface type='network'&gt;
          &lt;source network='onenetwork'/&gt;
        &lt;/interface&gt;
    &lt;/devices&gt;
    &lt;/domain&gt;
    </pre>
<p>
<b>Note:</b> The "&lt;interface type='network'&gt;" will
attach the interface to a previously configured network (named
<tt>onenetwork</tt>) within the <a href="http://opennebula.org/">OpenNebula</a> system, typically with the
<tt>onevnet</tt> CLI command.</p>

<p><b>Note</b>: OpenNebula supports the simultaneous use of different hypervisors, so you can specify any os type (linux or hvm) supported by your cluster.    
</p>

<h2>Links</h2>
<ul>
<li><a href="http://www.opennebula.org/doku.php?id=documentation">OpenNebula Documentation</a>
</li>
<li><a href="http://www.opennebula.org/doku.php?id=documentation:rel1.2:ug">OpenNebula User Guide</a>
</li>
</ul>
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