21aa195468
New feature allows users to set parameters to automatically purge unused images after a specified duration. See https://review.openstack.org/#/c/56416 for details. Change-Id: I332d3f2489cd189fc50a8d93a6b0162f7175ca3d Closes-Bug: #1296995
711 lines
36 KiB
XML
711 lines
36 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE chapter [
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<!-- Some useful entities borrowed from HTML -->
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<!ENTITY nbsp " ">
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]>
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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" version="5.0"
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xml:id="vmware">
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<title>VMware vSphere</title>
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<?dbhtml stop-chunking?>
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<section xml:id="vmware-intro">
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<title>Introduction</title>
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<para>OpenStack Compute supports the VMware vSphere product family
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and enables access to advanced features such as vMotion, High
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Availability, and Dynamic Resource Scheduling (DRS). This
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section describes how to configure VMware-based virtual machine
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images for launch. vSphere versions 4.1 and newer are
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supported.</para>
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<para>The VMware vCenter driver enables the <systemitem
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class="service">nova-compute</systemitem> service to communicate with
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a VMware vCenter server that manages one or more ESX host
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clusters. The driver aggregates the ESX hosts in each cluster to
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present one large hypervisor entity for each cluster to the
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Compute scheduler. Because individual ESX hosts are not exposed
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to the scheduler, Compute schedules to the granularity of
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clusters and vCenter uses DRS to select the actual ESX host
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within the cluster. When a virtual machine makes its way into a
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vCenter cluster, it can use all vSphere features.</para>
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<para>The following sections describe how to configure the VMware
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vCenter driver.</para>
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</section>
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<section xml:id="vmware_architecture">
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<title>High-level architecture</title>
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<para>The following diagram shows a high-level view of the VMware
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driver architecture:</para>
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<figure>
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<title>VMware driver architecture</title>
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<mediaobject>
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<imageobject>
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<imagedata
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fileref="../../common/figures/vmware-nova-driver-architecture.jpg"
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format="JPG" contentwidth="6in"/>
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</imageobject>
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</mediaobject>
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</figure>
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<para>As the figure shows, the OpenStack Compute Scheduler sees
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three hypervisors that each correspond to a cluster in vCenter.
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<systemitem class="service">Nova-compute</systemitem> contains
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the VMware driver. You can run with multiple <systemitem
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class="service">nova-compute</systemitem> services. While
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Compute schedules at the granularity of a cluster, the VMware
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driver inside <systemitem class="service"
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>nova-compute</systemitem> interacts with the vCenter APIs to
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select an appropriate ESX host within the cluster. Internally,
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vCenter uses DRS for placement.</para>
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<para>The VMware vCenter driver also interacts with the OpenStack
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Image Service to copy VMDK images from the Image Service back
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end store. The dotted line in the figure represents VMDK images
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being copied from the OpenStack Image Service to the vSphere
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data store. VMDK images are cached in the data store so the copy
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operation is only required the first time that the VMDK image is
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used.</para>
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<para>After OpenStack boots a VM into a vSphere cluster, the VM
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becomes visible in vCenter and can access vSphere advanced
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features. At the same time, the VM is visible in the OpenStack
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dashboard and you can manage it as you would any other OpenStack
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VM. You can perform advanced vSphere operations in vCenter while
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you configure OpenStack resources such as VMs through the
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OpenStack dashboard.</para>
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<para>The figure does not show how networking fits into the
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architecture. Both <systemitem class="service"
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>nova-network</systemitem> and the OpenStack Networking
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Service are supported. For details, see <xref
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linkend="VMWare_networking"/>.</para>
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</section>
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<section xml:id="vmware_configuration_overview">
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<title>Configuration overview</title>
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<para>To get started with the VMware vCenter driver, complete the
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following high-level steps:</para>
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<orderedlist>
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<listitem>
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<para>Configure vCenter correctly. See <xref
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linkend="vmware-prereqs"/>.</para>
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</listitem>
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<listitem>
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<para>Configure <filename>nova.conf</filename> for the VMware
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vCenter driver. See <xref linkend="VMWareVCDriver_details"
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/>.</para>
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</listitem>
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<listitem>
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<para>Load desired VMDK images into the OpenStack Image
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Service. See <xref linkend="VMWare_images"/>.</para>
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</listitem>
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<listitem>
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<para>Configure networking with either <systemitem
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class="service">nova-network</systemitem> or the OpenStack
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Networking Service. See <xref linkend="VMWare_networking"
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/>.</para>
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</listitem>
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</orderedlist>
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</section>
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<section xml:id="vmware-prereqs">
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<title>Prerequisites and limitations</title>
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<para>Use the following list to prepare a vSphere environment that
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runs with the VMware vCenter driver:</para>
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<orderedlist>
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<listitem>
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<para><emphasis role="bold">Copying VMDK files (vSphere 5.1
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only).</emphasis> In vSphere 5.1, copying large image files
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(for example, 12 GB and greater) from Glance can take a long
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time. To improve performance, VMware recommends that you
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upgrade to VMware vCenter Server 5.1 Update 1 or later. For
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more information, see the <link xlink:href="https://www.vmware.com/support/vsphere5/doc/vsphere-vcenter-server-51u1-release-notes.html#resolvedissuescimapi">Release Notes</link>.</para>
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</listitem>
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<listitem>
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<para><emphasis role="bold">DRS</emphasis>. For any cluster
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that contains multiple ESX hosts, enable DRS and enable
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fully automated placement.</para>
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</listitem>
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<listitem>
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<para><emphasis role="bold">Shared storage</emphasis>. Only
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shared storage is supported and data stores must be shared
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among all hosts in a cluster. It is recommended to remove
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data stores not intended for OpenStack from clusters being
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configured for OpenStack.</para>
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</listitem>
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<listitem>
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<para><emphasis role="bold">Clusters and data
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stores</emphasis>. Do not use OpenStack clusters and data
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stores for other purposes. If you do, OpenStack displays
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incorrect usage information.</para>
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</listitem>
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<listitem>
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<para><emphasis role="bold">Networking</emphasis>. The
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networking configuration depends on the desired networking
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model. See <xref linkend="VMWare_networking"/>.</para>
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</listitem>
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<listitem>
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<para><emphasis role="bold">Security groups</emphasis>. If you
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use the VMware driver with OpenStack Networking and the NSX
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plug-in, security groups are supported. If you use
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<systemitem class="service">nova-network</systemitem>,
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security groups are not supported.</para>
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<note><para>The NSX plug-in is the only plug-in that is
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validated for vSphere.</para></note>
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</listitem>
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<listitem>
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<para><emphasis role="bold">VNC</emphasis>. The port range
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5900 - 6105 (inclusive) is automatically enabled for VNC
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connections on every ESX host in all clusters under
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OpenStack control. For more information about using a VNC
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client to connect to virtual machine, see <link
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xlink:href="http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1246"
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>http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1246</link>.
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</para>
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<note><para>In addition to the default VNC port
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numbers (5900 to 6000) specified in the above document, the
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following ports are also used: 6101, 6102, and 6105.</para></note>
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<para>You must modify the ESXi firewall configuration to allow
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the VNC ports. Additionally, for the firewall modifications
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to persist after a reboot, you must create a custom vSphere
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Installation Bundle (VIB) which is then installed onto the
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running ESXi host or added to a custom image profile used to
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install ESXi hosts. For details about how to create a VIB
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for persisting the firewall configuration modifications, see
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<link
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xlink:href="http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2007381"
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>
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http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2007381</link>.</para>
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</listitem>
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<listitem>
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<para><emphasis role="bold">Ephemeral Disks</emphasis>.
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Ephemeral disks are not supported. A future major release
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will address this limitation.</para>
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</listitem>
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<listitem>
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<para>
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Injection of SSH keys into compute instances hosted by vCenter is
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not currently supported.
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</para>
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</listitem>
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<listitem>
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<para>
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To use multiple vCenter installations with OpenStack, each vCenter
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must be assigned to a separate availability zone. This is required
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as the OpenStack Block Storage VMDK driver does not currently work
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across multiple vCenter installations.
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</para>
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</listitem>
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</orderedlist>
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</section>
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<section xml:id="VMWareVCDriver_details">
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<title>VMware vCenter driver</title>
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<para>Use the VMware vCenter driver (VMwareVCDriver) to connect
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OpenStack Compute with vCenter. This recommended configuration
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enables access through vCenter to advanced vSphere features like
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vMotion, High Availability, and Dynamic Resource Scheduling
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(DRS).</para>
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<section xml:id="VMWareVCDriver_configuration_options">
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<title>VMwareVCDriver configuration options</title>
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<para>When you use the VMwareVCDriver (vCenter versions 5.1 and
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later) with OpenStack Compute, add the following
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VMware-specific configuration options to the
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<filename>nova.conf</filename> file:</para>
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<programlisting language="ini">[DEFAULT]
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compute_driver=vmwareapi.VMwareVCDriver
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[vmware]
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host_ip=<vCenter host IP>
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host_username=<vCenter username>
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host_password=<vCenter password>
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cluster_name=<vCenter cluster name>
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datastore_regex=<optional datastore regex></programlisting>
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<note>
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<itemizedlist>
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<listitem>
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<para>vSphere vCenter versions 5.0 and earlier: You must
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specify the location of the WSDL files by adding the
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<code>wsdl_location=http://127.0.0.1:8080/vmware/SDK/wsdl/vim25/vimService.wsdl</code>
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setting to the above configuration. For more
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information, see
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<link linkend="VMWare_additional_config">vSphere 5.0 and
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earlier additional set up</link>.</para>
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</listitem>
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<listitem>
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<para>Clusters: The vCenter driver can support multiple
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clusters. To use more than one cluster, simply add
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multiple <option>cluster_name</option> lines in
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<filename>nova.conf</filename> with the appropriate
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cluster name. Clusters and data stores used by the
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vCenter driver should not contain any VMs other than
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those created by the driver.</para>
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</listitem>
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<listitem>
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<para>Data stores: The <option>datastore_regex</option>
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setting specifies the data stores to use with Compute.
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For example, <option>datastore_regex="nas.*"</option>
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selects all the data stores that have a name starting
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with "nas". If this line is omitted, Compute uses the
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first data store returned by the vSphere API. It is
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recommended not to use this field and instead remove
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data stores that are not intended for OpenStack.</para>
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</listitem>
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<listitem>
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<para>Reserved host memory: The
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<option>reserved_host_memory_mb</option> option value is
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512 MB by default. However, VMware recommends that
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you set this option to 0 MB because the vCenter
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driver reports the effective memory available to the
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virtual machines.</para>
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</listitem>
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</itemizedlist>
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</note>
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<para>A <systemitem class="service">nova-compute</systemitem>
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service can control one or more clusters containing multiple
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ESX hosts, making <systemitem class="service"
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>nova-compute</systemitem> a critical service from a high
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availability perspective. Because the host that runs
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<systemitem class="service">nova-compute</systemitem> can
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fail while the vCenter and ESX still run, you must protect the
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<systemitem class="service">nova-compute</systemitem>
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service against host failures.</para>
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<note>
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<para>Many <filename>nova.conf</filename> options are relevant
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to libvirt but do not apply to this driver.</para>
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</note>
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<para>You must complete additional configuration for
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environments that use vSphere 5.0 and earlier. See <xref
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linkend="VMWare_additional_config"/>.</para>
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</section>
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</section>
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<section xml:id="VMWare_images">
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<title>Images with VMware vSphere</title>
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<para>The vCenter driver supports images in the VMDK format. Disks
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in this format can be obtained from VMware Fusion or from an ESX
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environment. It is also possible to convert other formats, such
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as qcow2, to the VMDK format using the <option>qemu-img</option>
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utility. After a VMDK disk is available, load it into the
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OpenStack Image Service. Then, you can use it with the VMware
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vCenter driver. The following sections provide additional
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details on the supported disks and the commands used for
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conversion and upload.</para>
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<section xml:id="VMware_supported_images">
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<title>Supported image types</title>
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<para>Upload images to the OpenStack Image Service in VMDK
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format. The following VMDK disk types are supported:</para>
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<itemizedlist>
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<listitem>
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<para><emphasis role="italic">VMFS Flat Disks</emphasis>
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(includes thin, thick, zeroedthick, and eagerzeroedthick).
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Note that once a VMFS thin disk is exported from VMFS to a
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non-VMFS location, like the OpenStack Image Service, it
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becomes a preallocated flat disk. This impacts the
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transfer time from the OpenStack Image Service to the data
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store when the full preallocated flat disk, rather than
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the thin disk, must be transferred.</para>
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</listitem>
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<listitem>
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<para><emphasis role="italic">Monolithic Sparse
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disks</emphasis>. Sparse disks get imported from the
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OpenStack Image Service into ESX as thin provisioned
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disks. Monolithic Sparse disks can be obtained from VMware
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Fusion or can be created by converting from other virtual
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disk formats using the <code>qemu-img</code>
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utility.</para>
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</listitem>
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</itemizedlist>
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<para>The following table shows the <option>vmware_disktype</option>
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property that applies to each of the supported VMDK disk
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types:</para>
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<table rules="all">
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<caption>OpenStack Image Service disk type settings</caption>
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<thead>
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<tr>
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<th>vmware_disktype property</th>
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<th>VMDK disk type</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>sparse</td>
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<td>
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<para>Monolithic Sparse</para>
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</td>
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</tr>
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<tr>
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<td>thin</td>
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<td>
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<para>VMFS flat, thin provisioned</para>
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</td>
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</tr>
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<tr>
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<td>preallocated (default)</td>
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<td>
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<para>VMFS flat,
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thick/zeroedthick/eagerzeroedthick</para>
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</td>
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</tr>
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</tbody>
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</table>
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<para>The <option>vmware_disktype</option> property is set when an
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image is loaded into the OpenStack Image Service. For example,
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the following command creates a Monolithic Sparse image by
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setting <option>vmware_disktype</option> to
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<literal>sparse</literal>:</para>
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<screen><prompt>$</prompt> <userinput>glance image-create name="ubuntu-sparse" disk_format=vmdk \
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container_format=bare is_public=true \
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--property vmware_disktype="sparse" \
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--property vmware_ostype="ubuntu64Guest" < ubuntuLTS-sparse.vmdk</userinput></screen>
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<para>Note that specifying <literal>thin</literal> does not
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provide any advantage over <literal>preallocated</literal>
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with the current version of the driver. Future versions might
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restore the thin properties of the disk after it is downloaded
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to a vSphere data store.</para>
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</section>
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<section xml:id="VMware_converting_images">
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<title>Convert and load images</title>
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<para>Using the <code>qemu-img</code> utility, disk images in
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several formats (such as, qcow2) can be converted to the VMDK
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format.</para>
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<para>For example, the following command can be used to convert
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a <link
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xlink:href="http://cloud-images.ubuntu.com/precise/current/precise-server-cloudimg-amd64-disk1.img"
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>qcow2 Ubuntu Precise cloud image</link>:</para>
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<screen><prompt>$</prompt> <userinput>qemu-img convert -f qcow2 ~/Downloads/precise-server-cloudimg-amd64-disk1.img \
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-O vmdk precise-server-cloudimg-amd64-disk1.vmdk</userinput></screen>
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<para>VMDK disks converted through <code>qemu-img</code> are
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<emphasis role="italic">always</emphasis> monolithic sparse
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VMDK disks with an IDE adapter type. Using the previous
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example of the Precise Ubuntu image after the
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<code>qemu-img</code> conversion, the command to upload the
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VMDK disk should be something like:</para>
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<screen><prompt>$</prompt> <userinput>glance image-create --name precise-cloud --is-public=True \
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--container-format=bare --disk-format=vmdk \
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--property vmware_disktype="sparse" \
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--property vmware_adaptertype="ide" < \
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precise-server-cloudimg-amd64-disk1.vmdk</userinput></screen>
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<para>Note that the <option>vmware_disktype</option> is set to
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<emphasis role="italic">sparse</emphasis> and the
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<code>vmware_adaptertype</code> is set to <emphasis
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role="italic">ide</emphasis> in the previous command.</para>
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<para>If the image did not come from the <code>qemu-img</code>
|
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utility, the <code>vmware_disktype</code> and
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<code>vmware_adaptertype</code> might be different. To
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determine the image adapter type from an image file, use the
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following command and look for the
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<option>ddb.adapterType=</option> line:</para>
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<screen><prompt>$</prompt> <userinput>head -20 <vmdk file name></userinput></screen>
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<para>Assuming a preallocated disk type and an iSCSI lsiLogic
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adapter type, the following command uploads the VMDK
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disk:</para>
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<screen><prompt>$</prompt> <userinput>glance image-create name="ubuntu-thick-scsi" disk_format=vmdk \
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container_format=bare is_public=true \
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--property vmware_adaptertype="lsiLogic" \
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--property vmware_disktype="preallocated" \
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--property vmware_ostype="ubuntu64Guest" < ubuntuLTS-flat.vmdk</userinput></screen>
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<para>Currently, OS boot VMDK disks with an IDE adapter type
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cannot be attached to a virtual SCSI controller and likewise
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disks with one of the SCSI adapter types (such as, busLogic,
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lsiLogic) cannot be attached to the IDE controller. Therefore,
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as the previous examples show, it is important to set the
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<option>vmware_adaptertype</option> property correctly. The
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default adapter type is lsiLogic, which is SCSI, so you can
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omit the <parameter>vmware_adaptertype</parameter> property if
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you are certain that the image adapter type is
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lsiLogic.</para>
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</section>
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<section xml:id="VMware_tagging_images">
|
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<title>Tag VMware images</title>
|
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<para>In a mixed hypervisor environment, OpenStack Compute uses
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the <option>hypervisor_type</option> tag to match images to the
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correct hypervisor type. For VMware images, set the hypervisor
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type to <literal>vmware</literal>. Other valid hypervisor
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types include: xen, qemu, kvm, lxc, uml, and hyperv.</para>
|
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<screen><prompt>$</prompt> <userinput>glance image-create name="ubuntu-thick-scsi" disk_format=vmdk \
|
|
container_format=bare is_public=true \
|
|
--property vmware_adaptertype="lsiLogic" \
|
|
--property vmware_disktype="preallocated" \
|
|
--property hypervisor_type="vmware" \
|
|
--property vmware_ostype="ubuntu64Guest" < ubuntuLTS-flat.vmdk</userinput></screen>
|
|
</section>
|
|
<section xml:id="VMware_optimizing_images">
|
|
<title>Optimize images</title>
|
|
<para>Monolithic Sparse disks are considerably faster to
|
|
download but have the overhead of an additional conversion
|
|
step. When imported into ESX, sparse disks get converted to
|
|
VMFS flat thin provisioned disks. The download and conversion
|
|
steps only affect the first launched instance that uses the
|
|
sparse disk image. The converted disk image is cached, so
|
|
subsequent instances that use this disk image can simply use
|
|
the cached version.</para>
|
|
<para>To avoid the conversion step (at the cost of longer
|
|
download times) consider converting sparse disks to thin
|
|
provisioned or preallocated disks before loading them into the
|
|
OpenStack Image Service. Below are some tools that can be used
|
|
to pre-convert sparse disks.</para>
|
|
<orderedlist>
|
|
<listitem>
|
|
<para><emphasis role="bold">Using vSphere CLI (or sometimes
|
|
called the remote CLI or rCLI) tools</emphasis></para>
|
|
<para>Assuming that the sparse disk is made available on a
|
|
data store accessible by an ESX host, the following
|
|
command converts it to preallocated format:</para>
|
|
<programlisting>vmkfstools --server=ip_of_some_ESX_host -i /vmfs/volumes/datastore1/sparse.vmdk /vmfs/volumes/datastore1/converted.vmdk</programlisting>
|
|
<para>(Note that the vifs tool from the same CLI package can
|
|
be used to upload the disk to be converted. The vifs tool
|
|
can also be used to download the converted disk if
|
|
necessary.)</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><emphasis role="bold">Using vmkfstools directly on the
|
|
ESX host</emphasis></para>
|
|
<para>If the SSH service is enabled on an ESX host, the
|
|
sparse disk can be uploaded to the ESX data store via scp
|
|
and the vmkfstools local to the ESX host can use used to
|
|
perform the conversion: (After logging in to the host via
|
|
ssh)</para>
|
|
<programlisting>vmkfstools -i /vmfs/volumes/datastore1/sparse.vmdk /vmfs/volumes/datastore1/converted.vmdk</programlisting>
|
|
</listitem>
|
|
<listitem>
|
|
<para><emphasis role="bold"
|
|
>vmware-vdiskmanager</emphasis></para>
|
|
<para><code>vmware-vdiskmanager</code> is a utility that
|
|
comes bundled with VMware Fusion and VMware Workstation.
|
|
Below is an example of converting a sparse disk to
|
|
preallocated format:</para>
|
|
<programlisting>'/Applications/VMware Fusion.app/Contents/Library/vmware-vdiskmanager' -r sparse.vmdk -t 4 converted.vmdk</programlisting>
|
|
<para>In all of the above cases, the converted vmdk is
|
|
actually a pair of files: the descriptor file <emphasis
|
|
role="italic">converted.vmdk</emphasis> and the actual
|
|
virtual disk data file <emphasis role="italic"
|
|
>converted-flat.vmdk</emphasis>. The file to be uploaded
|
|
to the OpenStack Image Service is <emphasis role="italic"
|
|
>converted-flat.vmdk</emphasis>.</para>
|
|
</listitem>
|
|
</orderedlist>
|
|
</section>
|
|
<section xml:id="VMware_copying_images">
|
|
<title>Image handling</title>
|
|
<para>The ESX hypervisor requires a copy of the VMDK file in
|
|
order to boot up a virtual machine. As a result, the vCenter
|
|
OpenStack Compute driver must download the VMDK via HTTP from
|
|
the OpenStack Image Service to a data store that is visible to
|
|
the hypervisor. To optimize this process, the first time a
|
|
VMDK file is used, it gets cached in the data store.
|
|
Subsequent virtual machines that need the VMDK use the cached
|
|
version and don't have to copy the file again from the
|
|
OpenStack Image Service.</para>
|
|
<para>Even with a cached VMDK, there is still a copy operation
|
|
from the cache location to the hypervisor file directory in
|
|
the shared data store. To avoid this copy, boot the image in
|
|
linked_clone mode. To learn how to enable this mode, see <xref
|
|
linkend="VMWare_config"/>. Note also that it is possible to
|
|
override the linked_clone mode on a per-image basis by using
|
|
the <code>vmware_linked_clone</code> property in the OpenStack
|
|
Image Service.</para>
|
|
<para>You can configure the <filename>nova.conf</filename> file
|
|
to automatically purge unused images after a specified period
|
|
of time. The relevant settings in the <literal>DEFAULT</literal>
|
|
section are:</para>
|
|
<itemizedlist>
|
|
<listitem><para><parameter>remove_unused_base_images</parameter>
|
|
- Set this parameter to <userinput>True</userinput> to
|
|
specify that unused images should be removed after the
|
|
duration specified in the <parameter>remove_unused_original_minimum_age_seconds</parameter> parameter.
|
|
The default is <userinput>True</userinput>.</para></listitem>
|
|
<listitem><para><parameter>remove_unused_original_minimum_age_seconds</parameter>
|
|
- Specifies the duration in seconds after which an unused
|
|
image is purged from the cache. The default is
|
|
<userinput>86400</userinput> (24 hours).</para></listitem>
|
|
</itemizedlist>
|
|
</section>
|
|
</section>
|
|
<section xml:id="VMWare_networking">
|
|
<title>Networking with VMware vSphere</title>
|
|
<para>The VMware driver supports networking with the <systemitem
|
|
class="service">nova-network</systemitem> service or the
|
|
OpenStack Networking Service. Depending on your installation,
|
|
complete these configuration steps before you provision
|
|
VMs:</para>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para><emphasis role="bold">
|
|
The <systemitem class="service">nova-network</systemitem>
|
|
service with the FlatManager or FlatDHCPManager</emphasis>.
|
|
Create a port group with the same name as the
|
|
<literal>flat_network_bridge</literal> value in the
|
|
<filename>nova.conf</filename> file. The default value is
|
|
<literal>br100</literal>. If you specify another value,
|
|
the new value must be a valid linux bridge identifier that
|
|
adheres to linux bridge naming conventions.</para>
|
|
<para>All VM NICs are attached to this port group.</para>
|
|
<para>Ensure that the flat interface of the node that runs
|
|
the <systemitem class="service">nova-network</systemitem>
|
|
service has a path to this network.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para><emphasis role="bold">The <systemitem class="service"
|
|
>nova-network</systemitem> service with the
|
|
VlanManager</emphasis>. Set the
|
|
<literal>vlan_interface</literal> configuration option to
|
|
match the ESX host interface that handles VLAN-tagged VM
|
|
traffic.</para>
|
|
<para>OpenStack Compute automatically creates the
|
|
corresponding port groups.</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>If you are using the OpenStack Networking Service:
|
|
Before provisioning VMs, create a port group with the same
|
|
name as the <literal>vmware.integration_bridge</literal>
|
|
value in <filename>nova.conf</filename> (default is
|
|
<literal>br-int</literal>). All VM NICs are attached to
|
|
this port group for management by the OpenStack Networking
|
|
plug-in.</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</section>
|
|
<section xml:id="VMWare_volumes">
|
|
<title>Volumes with VMware vSphere</title>
|
|
<para>The VMware driver supports attaching volumes from the
|
|
OpenStack Block Storage service. The VMware VMDK driver for
|
|
OpenStack Block Storage is recommended and should be used for
|
|
managing volumes based on vSphere data stores. More information
|
|
about the VMware VMDK driver can be found at: <link
|
|
xlink:href="http://docs.openstack.org/trunk/config-reference/content/vmware-vmdk-driver.html"
|
|
>VMware VMDK Driver</link>. Also an iscsi volume driver
|
|
provides limited support and can be used only for
|
|
attachments.</para>
|
|
</section>
|
|
<section xml:id="VMWare_additional_config">
|
|
<title>vSphere 5.0 and earlier additional set up</title>
|
|
<para>Users of vSphere 5.0 or earlier must host their WSDL files
|
|
locally. These steps are applicable for vCenter 5.0 or ESXi 5.0
|
|
and you can either mirror the WSDL from the vCenter or ESXi
|
|
server that you intend to use or you can download the SDK
|
|
directly from VMware. These workaround steps fix a <link
|
|
xlink:href="http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&externalId=2010507"
|
|
>known issue</link> with the WSDL that was resolved in later
|
|
versions.</para>
|
|
<para>When setting the VMwareVCDriver configuration options, you
|
|
must include the <code>wsdl_location</code> option. For more
|
|
information, see
|
|
<link linkend="VMWareVCDriver_configuration_options">VMwareVCDriver
|
|
configuration options</link> above.</para>
|
|
<procedure>
|
|
<title>Mirror WSDL from vCenter (or ESXi)</title>
|
|
<step>
|
|
<para>Set the <code>VMWAREAPI_IP</code> shell variable to the
|
|
IP address for your vCenter or ESXi host from where you plan
|
|
to mirror files. For example:</para>
|
|
<screen><prompt>$</prompt> <userinput>export VMWAREAPI_IP=<your_vsphere_host_ip></userinput></screen>
|
|
</step>
|
|
<step>
|
|
<para>Create a local file system directory to hold the WSDL
|
|
files:</para>
|
|
<screen><prompt>$</prompt> <userinput>mkdir -p /opt/stack/vmware/wsdl/5.0</userinput></screen>
|
|
</step>
|
|
<step>
|
|
<para>Change into the new directory.
|
|
<screen><prompt>$</prompt> <userinput>cd /opt/stack/vmware/wsdl/5.0</userinput> </screen></para>
|
|
</step>
|
|
<step>
|
|
<para>Use your OS-specific tools to install a command-line
|
|
tool that can download files like
|
|
<command>wget</command>.</para>
|
|
</step>
|
|
<step>
|
|
<para>Download the files to the local file cache:</para>
|
|
<programlisting language="bash">wget --no-check-certificate https://$VMWAREAPI_IP/sdk/vimService.wsdl
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/vim.wsdl
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/core-types.xsd
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/query-messagetypes.xsd
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/query-types.xsd
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/vim-messagetypes.xsd
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/vim-types.xsd
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/reflect-messagetypes.xsd
|
|
wget --no-check-certificate https://$VMWAREAPI_IP/sdk/reflect-types.xsd</programlisting>
|
|
<para>Because the <filename>reflect-types.xsd</filename> and
|
|
<filename>reflect-messagetypes.xsd</filename> files do not
|
|
fetch properly, you must stub out these files. Use the
|
|
following XML listing to replace the missing file content.
|
|
The XML parser underneath Python can be very particular and
|
|
if you put a space in the wrong place, it can break the
|
|
parser. Copy the following contents and formatting
|
|
carefully.</para>
|
|
<programlisting language="xml"><?xml version="1.0" encoding="UTF-8"?>
|
|
<schema
|
|
targetNamespace="urn:reflect"
|
|
xmlns="http://www.w3.org/2001/XMLSchema"
|
|
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
|
|
elementFormDefault="qualified">
|
|
</schema> </programlisting>
|
|
</step>
|
|
<step>
|
|
<para>Now that the files are locally present, tell the driver
|
|
to look for the SOAP service WSDLs in the local file system
|
|
and not on the remote vSphere server. Add the following
|
|
setting to the <filename>nova.conf</filename> file for your
|
|
<systemitem class="service">nova-compute</systemitem>
|
|
node:</para>
|
|
<programlisting language="ini">[vmware]
|
|
wsdl_location=file:///opt/stack/vmware/wsdl/5.0/vimService.wsdl</programlisting>
|
|
</step>
|
|
</procedure>
|
|
<para>Alternatively, download the version appropriate SDK from
|
|
<link
|
|
xlink:href="http://www.vmware.com/support/developer/vc-sdk/"
|
|
>http://www.vmware.com/support/developer/vc-sdk/</link> and
|
|
copy it to the <filename>/opt/stack/vmware</filename> file. Make
|
|
sure that the WSDL is available, in for example
|
|
<filename>/opt/stack/vmware/SDK/wsdl/vim25/vimService.wsdl</filename>.
|
|
You must point <filename>nova.conf</filename> to fetch this WSDL
|
|
file from the local file system by using a URL.</para>
|
|
<para>When using the VMwareVCDriver (vCenter) with OpenStack
|
|
Compute with vSphere version 5.0 or earlier,
|
|
<filename>nova.conf</filename> must include the following
|
|
extra config option:</para>
|
|
<programlisting language="ini">[vmware]
|
|
wsdl_location=file:///opt/stack/vmware/SDK/wsdl/vim25/vimService.wsdl</programlisting>
|
|
</section>
|
|
<section xml:id="VMWareESXDriver_details">
|
|
<title>VMware ESX driver</title>
|
|
<para>This section covers details of using the VMwareESXDriver.
|
|
The ESX Driver has not been extensively tested and is not
|
|
recommended. To configure the VMware vCenter driver instead, see
|
|
<xref linkend="VMWareVCDriver_details"/>.</para>
|
|
<warning>
|
|
<para>
|
|
The VMWare ESX driver has been deprecated in the Icehouse
|
|
release and will be removed with the Juno release.
|
|
</para>
|
|
</warning>
|
|
<section xml:id="VMWareESXDriver_configuration_options">
|
|
<title>VMwareESXDriver configuration options</title>
|
|
<para>When you use the VMwareESXDriver (no vCenter) with
|
|
OpenStack Compute, add the following VMware-specific
|
|
configuration options to the <filename>nova.conf</filename>
|
|
file:</para>
|
|
<programlisting language="ini">[DEFAULT]
|
|
compute_driver=vmwareapi.VMwareESXDriver
|
|
|
|
[vmware]
|
|
host_ip=<ESXi host IP>
|
|
host_username=<ESXi host username>
|
|
host_password=<ESXi host password>
|
|
wsdl_location=http://127.0.0.1:8080/vmware/SDK/wsdl/vim25/vimService.wsdl</programlisting>
|
|
<para>Remember that you will have one <systemitem
|
|
class="service">nova-compute</systemitem> service for each
|
|
ESXi host. It is recommended that this host run as a VM on the
|
|
same ESXi host that it manages.</para>
|
|
<note>
|
|
<para>Many <filename>nova.conf</filename> options are relevant
|
|
to libvirt but do not apply to this driver.</para>
|
|
</note>
|
|
</section>
|
|
<section xml:id="VMwareESXDriver_limitations">
|
|
<title>Requirements and limitations</title>
|
|
<para>The ESXDriver cannot use many of the vSphere platform
|
|
advanced capabilities, namely vMotion, high availability, and
|
|
DRS.</para>
|
|
</section>
|
|
</section>
|
|
<section xml:id="VMWare_config">
|
|
<title>Configuration reference</title>
|
|
<para>To customize the VMware driver, use the configuration option settings
|
|
documented in <xref linkend="config_table_nova_vmware"/>.</para>
|
|
</section>
|
|
</section>
|