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OSDC.de 2013

Introduction to OpenStack

Justin Clift

Open Source & Standards Team @ RH 17 April 2013

Introduction to OpenStack : OSDC.de 2013 : Justin Clift : [email protected]

Who is Justin Clift?

● Senior Software Engineer @ Red Hat

● Generally works in technical Community Building roles

● Moved to OSAS (Open Source and Standards) team in

Red Hat ~1 month ago

● Expanding GlusterFS Community atm, by integrating it

with complimentary projects

● OpenStack is present focus, other projects upcoming

● Suggestions for more good integration targets welcome

:)

● @realjustinclift / [email protected] / [email protected]

http://twitter.com/realjustinclift

mailto:[email protected]




So, what is this OpenStack thing all about?

Introduction to OpenStack : OSDC.de 2013 : Justin Clift : [email protected] CC-BY-SA flicker user docsearls http://www.flickr.com/photos/52614599@N00/285501241/


OpenStack view from the clouds...

● Building blocks for creating public / private clouds

● Massive scale

● Horizontally scalable services

● Illusion of infinite resources

● Rapid provisioning / tear down of resources

● Modular services with well defined APIs


Node Node Node Node

Node Node Node Node Node

Node

OpenStack Web UI

OpenStack Core Services

REST API AMQP

Introduction to OpenStack : OSDC.de 2013 : Justin Clift : [email protected] CC-BY-SA flicker user r-butler http://www.flickr.com/photos/r-butler/5092400656/


What makes up OpenStack?

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking


● Schedules virtual machines to run on a set of nodes

● Similar in concept to Amazon EC2

● Multiple hypervisor support: KVM, Xen, LXC, + more

● Storage: iSCSI, NetApp, Nexenta, XenSM, SAN

● Native OpenStack API + EC2 API Support

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking

Nova

Compute Node


OpenStack Compute (Nova)

API Compute, Volumes, EC2



QPID

Database

Scheduler

Scheduler

Scheduler

Volume AMQP

AMQP

AMQP

Compute libvirt KVM

Network

Compute libvirt KVM

Network

Compute libvirt KVM

Network

AMQP

REST


● Mechanism for storing and retrieving disk images

● Backends: Swift, S3, filesystem

● Image Types: raw, qcow2, vmdk, vhd, iso, ami/aki, ovf

● Public or private images & image sharing

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking

Glance

Image Service


OpenStack Image Service (Glance)

Glance API Glance API Glance API

Glance Registry

REST

Glance Database


● Mechanism for storing arbitrary data

● Similar to Amazon S3 (and supports S3 API)

● Data replication/redundancy

● Commodity Hardware (RAID etc not required)

● Linear performance (optimised for scale)

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking

Swift

Object Store


OpenStack Object Storage (Swift)

Swift API (Proxy Node)



REST

Storage Node Storage Node Storage Node

Replication (rsync based)


● Self-service web UI for managing OpenStack services

● Modular Django web application

● Provides end-user and administrator interface

● Plugin architecture (so can support non-core projects)

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking

Horizon Dashboard


OpenStack Dashboard (Horizon)


● Common authorization framework based on tokens

● Manages users, tenants, roles

● Provides service catalogs & endpoints

● Pluggable backends: SQL, PAM, LDAP, KVS

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Quantum

Networking

Keystone

Identity Service

Horizon Dashboard


OpenStack Identity Service (Keystone)

Keystone API

Token Identity Policy Catalog

REST


● Provides networking as a service

● Plugin architecture to allow integration with hardware

based networking solutions

● Implements Software Defined Networks (SDN)

● Will replace Nova's Network Service

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking

Quantum

Networking


● Created from the Nova Volume service

● Provides block storage for runtime of instances

● Enables ability to do live migration of instances

● Similar to Amazon EBS

● GlusterFS support added in Grizzly

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking

Cinder

Volume Service


OpenStack related projects : Heat API

● Orchestration of OpenStack deployments

● Integrates with all OpenStack core projects

● Converts a JSON template into a cloud application

● Implements well known template and API (AWS

Cloudformation)

● Version your cloud applications like your software!

● Repeatable deployments, fully automated


● Provides AWS CloudFormation and native ReST API

● Abstract configuration of services to single-template

● Monitoring/HA/Autoscaling features

● Was in OpenStack “incubation”, now graduated

Nova

Compute Node

Glance

Image Service

Swift

Object Store

Cinder

Volume Service

Keystone

Identity Service

Horizon Dashboard

Quantum

Networking

Heat Orchestration


So who should use OpenStack?


OpenStack deployment

●Currently geared towards deployments managed by skilled in●Red Hat is introducing a fully supported OpenStack product –●Aiming to make OpenStack consumable by a much wider audience●For evaluation/development purposes it is actually really easy to get a simple demo deployment going...


Austin Oct 2010

Bexar Feb 2011

Cactus Apr 2011

Diablo Sep 2011

Essex Apr 2012

Folsom Oct 2012

● Initial Release

● OpenStack Object Storage Production Ready

● OpenStack Compute in testing

● OpenStack Compute ready for deployment

● Initial release: OpenStack Image Service

● Installation & deployment enhancements, documentation

● Scaling enhancements

● Support: KVM/QEMU, XenServer, Xen, ESX, LXC

● Initial release: OpenStack Dashboard, OpenStack Identity

● New project: Quantum

● Quantum (Networking) full inclusion

● Cinder (Volume Service)

OpenStack Releases

● First “Production Ready” Release

Grizzly Apr 2013

Havana ~Oct 2013

● New projects in incubation: Heat (orchestration/HA) and

Ceilometer (metering)

● GlusterFS drivers for Cinder

RDO launched here too (April 2013)


Getting Started the Easy Way - RDO

● Launched yesterday at the OpenStack Summit :)

● Website at openstack.redhat.com

● OpenStack Grizzly Community release, packaged for

Enterprise Linux 6

● Eg: RHEL 6.x, CentOS 6.x, Scientific Linux 6.x, etc.

● Working well with RHEL derivatives is a core feature

● Also available for Fedora 18/19

● The default OpenStack in Fedora 18 repos is the older

Folsom release. Use RDO if you use Fedora and want

the latest OpenStack.

http://openstack.redhat.com/



Getting Started the Easy Way – RDO Quickstart

● http://openstack.redhat.com/Quickstart

● Everything setup on one box for easy hands on experience

● Works fine in a VM, as long as nested virt is enabled

● Uses “PackStack” - OpenStack installer for EL6/Fedora

● 3 Step installation

● $ sudo yum install -y

http://rdo.fedorapeople.org/openstack/openstack-grizzly/rdo-

release-grizzly-1.noarch.rpm

● $ sudo yum install -y openstack-packstack

● $ packstack --allinone

http://openstack.redhat.com/Quickstart

http://openstack.redhat.com/Quickstart

http://rdo.fedorapeople.org/openstack/openstack-grizzly/rdo-release-grizzly-1.noarch.rpm











Useful Links / Getting Started

● Main OpenStack website - http://openstack.org

● [email protected]

● IRC: #openstack @ freenode.net

RDO - http://openstack.redhat.com

● QuickStart

● RDO Forums

● More in depth docs than just the QuickStart :)

● Links to useful extra pieces

● eg: How-to's for GlusterFS integration plus more

http://openstack.org/

http://openstack.org/





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