openstack/openstack-manuals
Code Issues Proposed changes

Merge "Arch Design: Edits in chapter specialized"

Browse Source
This commit is contained in:
Jenkins 2014-08-03 07:29:15 +00:00 committed by Gerrit Code Review
commit d38917d673
7 changed files with 43 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
doc/arch-design/specialized/section_desktop_as_a_service_specialized.xml
View File

@ -25,7 +25,7 @@
example:</para>
<itemizedlist>
<listitem>
<para>Boot storms - What happens when hundreds or
<para>Boot storms: What happens when hundreds or
thousands of users log in during shift changes,
affects the storage design.</para>
</listitem>
@ -39,19 +39,21 @@
</listitem>
</itemizedlist></section>
<section xml:id="broker"><title>Broker</title>
<para>The Connection Broker is a central component of the
architecture that determines which Remote Desktop Host will be
<para>The connection broker is a central component of the
architecture that determines which remote desktop host will be
assigned or connected to the user. The broker is often a
full-blown management product allowing for the automated
deployment and provisioning of Remote Desktop Hosts.</para></section>
deployment and provisioning of remote desktop hosts.</para></section>
<section xml:id="possible-solutions">
<title>Possible solutions</title>
<para>There a number of commercial products available today that
<para>
There are a number of commercial products available today that
provide such a broker solution but nothing that is native in
the OpenStack project. There of course is also the option of
not providing a broker and managing this manually - but this
would not suffice as a large scale, enterprise
solution.</para></section>
the OpenStack project. Not providing a broker is also
an option, but managing this manually would not suffice as a
large scale, enterprise solution.
</para>
</section>
<section xml:id="diagram"><title>Diagram</title>
<mediaobject>
<imageobject>

22
doc/arch-design/specialized/section_hardware_specialized.xml
View File

@ -22,21 +22,25 @@
work.</para></section>
<section xml:id="solutions-specialized-hardware"><title>Solutions</title>
<para>In order to provide cryptography offloading to a set of
instances, it is possible to use Glance configuration options
to assign the cryptography chip to a device node in the guest.
The documentation at
http://docs.openstack.org/cli-reference/content/chapter_cli-glance-property.html
contains further information on configuring this solution, but
it allows all guests using the configured images to access the
hypervisor cryptography device.</para>
instances, it is possible to use Image Service configuration
options to assign the cryptography chip to a device node in
the guest. The <citetitle>OpenStack Command Line
Reference</citetitle> contains further information on
configuring this solution in the chapter <link
xlink:href="http://docs.openstack.org/cli-reference/content/chapter_cli-glance-property.html">Image
Service property keys</link> , but it allows all guests using
the configured images to access the hypervisor cryptography
device.</para>
<para>If direct access to a specific device is required, it can be
dedicated to a single instance per hypervisor through the use
of PCI pass-through. The OpenStack administrator needs to
define a flavor that specifically has the PCI device in order
to properly schedule instances. More information regarding PCI
pass-through, including instructions for implementing and
using it, is available at
https://wiki.openstack.org/wiki/Pci_passthrough#How_to_check_PCI_status_with_PCI_api_patches.</para>
using it, is available at <link
xlink:href="https://wiki.openstack.org/wiki/Pci_passthrough#How_to_check_PCI_status_with_PCI_api_patches">https://wiki.openstack.org/wiki/Pci_passthrough</link>.
</para>
<mediaobject>
<imageobject>
<imagedata contentwidth="4in" fileref="../images/Specialized_Hardware2.png"/>

2
doc/arch-design/specialized/section_introduction_specialized.xml
View File

@ -13,7 +13,7 @@
can't be neatly categorized into one of the other major
sections. This section discusses some of these unique use
cases with some additional details and design considerations
for each use case.</para>
for each use case:</para>
<itemizedlist>
<listitem>
<para>Specialized Networking: This describes running

2
doc/arch-design/specialized/section_networking_specialized.xml
View File

@ -19,7 +19,7 @@
layer 2 listeners.</para></section>
<section xml:id="possible-solutions-specialized-networking">
<title>Possible solutions</title>
<para>Deploying an OpenStack installation using Neutron with a
<para>Deploying an OpenStack installation using OpenStack Networking with a
provider network will allow direct layer 2 connectivity to an
upstream networking device. This design provides the layer 2
connectivity required to communicate via Intermediate

21
doc/arch-design/specialized/section_openstack_on_openstack_specialized.xml
View File

@ -1,4 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE section [
<!ENTITY % openstack SYSTEM "../../common/entities/openstack.ent">
%openstack;
]>
<section xmlns="http://docbook.org/ns/docbook"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xlink="http://www.w3.org/1999/xlink"
@ -15,8 +19,8 @@
maintenance process on complete OpenStack-based clouds.
Developers and those testing OpenStack can also use the
guidance to provision their own OpenStack environments on
available OpenStack Compute resources, whether Public or
Private.</para>
available OpenStack Compute resources, whether public or
private.</para>
<section xml:id="challenges-for-nested-cloud"><title>Challenges</title>
<para>The network aspect of deploying a nested cloud is the most
complicated aspect of this architecture. When using VLANs,
@ -42,10 +46,12 @@
deploying additional stacks will be a trivial thing and can be
performed in an automated fashion.</para>
<para>The OpenStack-On-OpenStack project (TripleO) is addressing
this issue - although at the current time the project does not
provide comprehensive coverage for the nested stacks. More
information can be found at
https://wiki.openstack.org/wiki/TripleO.</para></section>
this issue&mdash;although at the current time the project does
not provide comprehensive coverage for the nested stacks. More
information can be found at <link
xlink:href="https://wiki.openstack.org/wiki/TripleO">https://wiki.openstack.org/wiki/TripleO</link>.
</para>
</section>
<section xml:id="possible-solutions-nested-cloud-hypervisor">
<title>Possible solutions: hypervisor</title>
<para>In the case of running TripleO, the underlying OpenStack
@ -56,7 +62,8 @@
purposes, and performance would not be a critical factor, QEMU
can be utilized instead. It is also possible to run a KVM
hypervisor in an instance
(http://davejingtian.org/2014/03/30/nested-kvm-just-for-fun/),
(see <link
xlink:href="http://davejingtian.org/2014/03/30/nested-kvm-just-for-fun/">http://davejingtian.org/2014/03/30/nested-kvm-just-for-fun/</link>),
though this is not a supported configuration, and could be a
complex solution for such a use case.</para></section>
<section xml:id="nested-cloud-diagram"><title>Diagram</title>

4
doc/arch-design/specialized/section_software_defined_networking_specialized.xml
View File

@ -5,8 +5,8 @@
version="5.0"
xml:id="software-defined-networking-sdn">
<?dbhtml stop-chunking?>
<title>Software Defined Networking (SDN)</title>
<para>Software Defined Networking is the separation of the data
<title>Software Defined Networking</title>
<para>Software Defined Networking (SDN) is the separation of the data
plane and control plane. SDN has become a popular method of
managing and controlling packet flows within networks. SDN
uses overlays or directly controlled layer 2 devices to