45 lines
2.5 KiB
XML
45 lines
2.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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version="5.0"
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xml:id="baremetal">
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<title>Baremetal driver</title>
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<para>The baremetal driver is a hypervisor driver for OpenStack Nova
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Compute. Within the OpenStack framework, it has the same role as the
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drivers for other hypervisors (libvirt, xen, etc), and yet it is
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presently unique in that the hardware is not virtualized - there is no
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hypervisor between the tenants and the physical hardware. It exposes
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hardware through the OpenStack APIs, using pluggable sub-drivers to deliver
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machine imaging (PXE) and power control (IPMI). With this, provisioning
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and management of physical hardware is accomplished by using common cloud
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APIs and tools, such as the Orchestration module (heat) or salt-cloud.
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However, due to this unique
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situation, using the baremetal driver requires some additional
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preparation of its environment, the details of which are beyond the
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scope of this guide.</para>
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<note><para>Some OpenStack Compute features are not implemented by
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the baremetal hypervisor driver. See the <link
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xlink:href="http://wiki.openstack.org/HypervisorSupportMatrix">
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hypervisor support matrix</link> for details.</para></note>
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<para>For the Baremetal driver to be loaded and function properly,
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ensure that the following options are set in
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<filename>/etc/nova/nova.conf</filename> on your <systemitem
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class="service">nova-compute</systemitem> hosts.</para>
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<programlisting language="ini">[default]
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compute_driver=nova.virt.baremetal.driver.BareMetalDriver
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firewall_driver = nova.virt.firewall.NoopFirewallDriver
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scheduler_host_manager=nova.scheduler.baremetal_host_manager.BaremetalHostManager
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ram_allocation_ratio=1.0
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reserved_host_memory_mb=0</programlisting>
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<para>Many configuration options are specific to the
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Baremetal driver. Also, some additional steps are
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required, such as building the baremetal deploy ramdisk. See
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the <link
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xlink:href="https://wiki.openstack.org/wiki/Baremetal">main wiki page</link> for details and implementation suggestions.
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</para>
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<para>To customize the Baremetal driver, use the configuration option
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settings documented in <xref
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linkend="config_table_nova_baremetal"/>.</para>
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</section>
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