107 lines
5.2 KiB
XML
107 lines
5.2 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<chapter 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" version="5.0"
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xml:id="ch_configuring-openstack-compute">
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<title>Compute</title>
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<para>The OpenStack Compute service is a cloud computing fabric
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controller, which is the main part of an IaaS system. You can use
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OpenStack Compute to host and manage cloud computing systems. This
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section describes the OpenStack Compute configuration
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options.</para>
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<para>To configure your Compute installation, you must define
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configuration options in these files:</para>
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<itemizedlist>
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<listitem>
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<para><filename>nova.conf</filename>. Contains most of the
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Compute configuration options. Resides in the
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<filename>/etc/nova</filename> directory.</para>
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</listitem>
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<listitem>
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<para><filename>api-paste.ini</filename>. Defines Compute
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limits. Resides in the <filename>/etc/nova</filename>
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directory.</para>
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</listitem>
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<listitem>
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<para>Related Image Service and Identity Service management
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configuration files.</para>
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</listitem>
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</itemizedlist>
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<xi:include href="compute/section_nova-conf.xml"/>
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<section xml:id="configuring-logging">
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<title>Configure logging</title>
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<para>You can use <filename>nova.conf</filename> file to configure
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where Compute logs events, the level of logging, and log
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formats.</para>
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<para>To customize log formats for OpenStack Compute, use these
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configuration option settings.</para>
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<xi:include href="../common/tables/nova-logging.xml"/>
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</section>
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<section xml:id="configuring-authentication-authorization">
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<title>Configure authentication and authorization</title>
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<para>There are different methods of authentication for the
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OpenStack Compute project, including no authentication. The
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preferred system is the OpenStack Identity Service, code-named
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Keystone.</para>
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<para>To customize authorization settings for Compute, see these
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configuration settings in <filename>nova.conf</filename>.</para>
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<xi:include href="../common/tables/nova-authentication.xml"/>
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<para>To customize certificate authority settings for Compute, see
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these configuration settings in
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<filename>nova.conf</filename>.</para>
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<xi:include href="../common/tables/nova-ca.xml"/>
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<para>To customize Compute and the Identity service to use LDAP as
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a backend, refer to these configuration settings in
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<filename>nova.conf</filename>.</para>
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<xi:include href="../common/tables/nova-ldap.xml"/>
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</section>
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<xi:include href="compute/section_compute-configure-ipv6.xml"/>
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<section xml:id="configuring-resize">
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<?dbhtml stop-chunking?>
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<title>Configure resize</title>
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<para>Resize (or Server resize) is the ability to change the
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flavor of a server, thus allowing it to upscale or downscale
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according to user needs. For this feature to work properly, you
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might need to configure some underlying virt layers.</para>
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<section xml:id="kvm-resize">
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<title>KVM</title>
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<para>Resize on KVM is implemented currently by transferring the
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images between compute nodes over ssh. For KVM you need
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hostnames to resolve properly and passwordless ssh access
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between your compute hosts. Direct access from one compute
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host to another is needed to copy the VM file across.</para>
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<para>Cloud end users can find out how to resize a server by
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reading the <link
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xlink:href="http://docs.openstack.org/user-guide/content/nova_cli_resize.html"
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>OpenStack End User Guide</link>.</para>
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</section>
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<section xml:id="xenserver-resize">
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<title>XenServer</title>
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<para>To get resize to work with XenServer (and XCP), you need
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to establish a root trust between all hypervisor nodes and
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provide an /image mount point to your hypervisors dom0.</para>
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</section>
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<!-- End of XenServer/Resize -->
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</section>
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<!-- End of configuring resize -->
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<xi:include href="compute/section_compute-configure-db.xml"/>
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<xi:include href="../common/section_compute_config-firewalls.xml"/>
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<!-- Oslo rpc mechanism (such as, Rabbit, Qpid, ZeroMQ) -->
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<xi:include href="../common/section_rpc.xml"/>
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<xi:include href="../common/section_compute_config-api.xml"/>
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<xi:include href="../common/section_compute-configure-ec2.xml"/>
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<xi:include href="../common/section_compute-configure-quotas.xml"/>
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<xi:include href="../common/section_compute-configure-console.xml"/>
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<xi:include
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href="compute/section_compute-configure-service-groups.xml"/>
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<xi:include href="../common/section_fibrechannel.xml"/>
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<xi:include href="compute/section_compute-hypervisors.xml"/>
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<xi:include href="compute/section_compute-scheduler.xml"/>
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<xi:include href="compute/section_compute-cells.xml"/>
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<xi:include href="compute/section_compute-conductor.xml"/>
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<xi:include href="compute/section_compute-security.xml"/>
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<xi:include href="compute/section_compute-config-samples.xml"/>
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<xi:include href="compute/section_nova-log-files.xml"/>
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<xi:include href="compute/section_compute-options-reference.xml"/>
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</chapter>
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