A look back at three years of OpenStack architecture as well as a view of the next version. Presented at OpenStack Korea in Seoul, South Korea on July 18th, 2013.

1. OpenStack
Architecture
Past and Future
Ken Pepple
Chief Technology Officer
http://www.solinea.com
HAPPY 3RD BIRTHDAY
AUTOMATEALLTHETHINGS

2. About Me
 CTO, Solinea
 Former Director of Cloud
Development, Internap
Public Cloud
 Author of O’Reilly
“Deploying OpenStack”
 OpenStack Code
contributor since Bexar
release
 Twitter @ken_pepple
 IRC kpepple
2

3. Early Development (Austin – Diablo)
 OpenStack started with Nova and Swift
 No interaction between two services until Glance in
Bexar release
 Developed completely on Launchpad
 My humble first commit
3
commit 16eeac71055ffa9fe0fc7a13032da4e6397121b1
Author: Ken Pepple <ken.pepple@gmail.com>
Date: Sat Jan 8 17:40:06 2011 -0800
fixed doc make process for new nova version (rev530) mechanism

4. Bexar/Cactus/Diablo Architecture (2011)
4
Image
Compute
Object
Storage
Stores
images in
Stores disk
files in
Conceptual Architecture Logical Architecture

5. Essex Development
 Web interface released
 Centralization of authentication released on
second try when “keystone light” was made the full
keystone
– https://lists.launchpad.net/openstack/msg07063.html
 Moved codebase to GitHub
5

6. 6

7. Essex Architecture (2012)
ObjectImage
Compute
Dashboard
Identity
authenticates
with
authenticates
with authenticates
with
retrieves / stores
images in
provides UI for
provides UI forprovides UI for
retrieves/stores
disk files in
http://ken.pepple.info
7
OpenStack Object Store
OpenStack
Image Service
OpenStack Compute
OpenStack
Dashboard
OpenStack
Identity
Service
OpenStack Compute
API /
Admin API
keystone
(service & admin APIs)
nova-api
(OS, EC2, Admin)
nova-consoleauth
nova-cert/
objectstore
nova-console
VNC/VMRC
OpenStack
Object API
Queue
nova-compute
nova-network
nova-volume
nova-scheduler
nova
database
volume
provider
(iSCSI, etc)
OpenStack
Compute API
OpenStack
Image API
Horizon
OpenStack
Image API
identity
backend
(kvs, pam, sql,
etc.)
swift-proxy
objectcontaineraccount
object
store
account
DB
container
DB
OpenStack
Object API
HTTP(S)
OpenStack
Object API
Horizon
Database
OpenStack
Identity API
OpenStack
Identity
API
OpenStack
Identity
API
OpenStack End Users
OpenStack
Image API
Amazon
Web Services
EC2 API
OpenStack
Identity
API
OpenStack
Image
API
catalog
backend
(kvs, catalog,
etc.)
token backend
(kvs, memcache,
etc.)
OpenStack
Identity
API
hypervisor
libvirt, XenAPI, etc.
HTTP(S)
glance-api
glance-registry
glance
database
http://ken.pepple.info/openstack/2011/04/22/openstack-nova-architecture/

8. Folsom Development
 Development and project pace quickens
 Cinder and Quantum (now Neutron) introduced
 Major influx of industry vendors support new services
8

9. Folsom Architecture (2012)
Identity
Dashboard
Image
Compute
Object
Storage
Block
Storage
Network
Provides
UI for
Provides
UI for
Provides
UI for Provides
UI for
Provides
UI for
Provides
Auth for
Provides
Auth for Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
volumes
for
Provide
network
connectivity
for
Stores
images in
Stores disk
files in
http://ken.pepple.info
OpenStack Object Store
OpenStack
Image Service
OpenStack Compute
OpenStack
Dashboard
OpenStack
Identity
Service
OpenStack Compute
API /
Admin API
keystone
(service & admin APIs)
nova-api
(OS, EC2, Admin)
nova-consoleauth
nova-cert/
objectstore
nova-console
VNC/VMRC
OpenStack
Object API
http://ken.pepple.info
Queue
nova-compute
nova-network
nova-volume
nova-scheduler
nova
database
OpenStack
Compute API
OpenStack
Image API
Horizon
OpenStack
Image API
identity
backend
(kvs, pam, sql,
ldap, etc.)
swift-proxy
objectcontaineraccount
object
store
account
DB
container
DB
OpenStack
Object API
HTTP(S)
OpenStack
Object API
Horizon
Database
OpenStack
Identity API
OpenStack
Identity
API
OpenStack
Identity
API
OpenStack End Users
OpenStack
Image API
OpenStack
Identity
API
OpenStack
Image
API
catalog
backend
(kvs, sql,
etc.)
token backend
(kvs, memcache,
etc.)
OpenStack
Identity
API
hypervisor
libvirt, XenAPI, etc.
HTTP(S)
Amazon
Web Services
EC2 API
OpenStack
Network Service
glance-api
glance-registry
glance
database
OpenStack
Block Storage
OpenStack
Block Storage API
cinder-api
cinder-volume
OpenStack
Identity
API
quantum-server
quantum
plugin(s)
OpenStack
Identity
API
cinder-scheduler
cinder
database
OpenStack
Network API
AMQP
AMQP
network
provider
OpenStack
Block Storage API
OpenStack
Network API
policy
backend
(rules, custom)
Queue
OpenStack
Network API
quantum
database
quantum
agent(s)
volume
provider
9http://ken.pepple.info/openstack/2012/09/25/openstack-folsom-architecture/

10. Grizzly Development
 No new services
 Simplification of some services
 Maturing of code on others
– nova-conductor introduced to isolate nova-compute from
database access
10

11. Grizzly Architecture (2013)
11
Identity
Dashboard
Image
Compute
Object
Storage
Block
Storage
Network
Provides
UI for Provides
UI for
Provides
UI for Provides
UI for
Provides
UI for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
volumes
for
Provide
network
connectivity
for
Stores
images in
Stores disk
files in
http://www.solinea.com
http://www.solinea.com/2013/06/15/openstack-grizzly-architecture-revisited/
OpenStack Object Store
OpenStack
Image Service OpenStack Compute
OpenStack
Dashboard
OpenStack
Identity
Service
OpenStack Compute
API /
Admin API
keystone
(service & admin APIs)
nova-api
(OS, EC2, Metadata, Admin)
nova-consoleauth
nova-cert/
objectstore
nova-console
nova-*proxy
VNC/VMRC
/Spice
OpenStack
Object API
http://www.solinea.com
Queue
nova-compute
nova-scheduler
nova
database
OpenStack
Compute API
OpenStack
Image API
Horizon
OpenStack
Image API
identity
backend
swift-proxy
objectcontaineraccount
object
store
account
DB
container
DB
OpenStack
Object API
HTTP(S)
OpenStack
Object API
OpenStack
Identity API
OpenStack
Identity
API
OpenStack
Identity
API
Internet
OpenStack
Image API
OpenStack
Identity
API
OpenStack
Image
API
catalog
backend
token backend
OpenStack
Identity
API
hypervisor
libvirt, XenAPI, etc.
HTTP(S)
Amazon
Web Services
EC2 API
OpenStack
Network Service
glance-api
glance-registry
glance
database
OpenStack
Block Storage
OpenStack
Block Storage API
cinder-api
cinder-volume
quantum-server
quantum
plugin(s)
OpenStack
Identity
API
cinder-scheduler
cinder
database
OpenStack
Network API
network
provider
OpenStack
Block Storage API
OpenStack
Network API
policy
backend
Queue
OpenStack
Network API
quantum
database
quantum
agent(s)
nova-conductor
memcached
OpenStack
Identity
API
⁃ OpenStack Command Line Tools (nova-client, swift-client, etc.)
⁃ Cloud Management Tools (Rightscale, Enstratius, etc.)
⁃ GUI tools (Cyberduck, iPhone client, etc.)
volume provider
cinder-backup
OpenStack Object API
OpenStack
Identity
API
Queue
OpenStack
Block Storage API

12. Havana Development
 Ceilometer is a metering
project. The project offers
metering. Metering lets you
know what actions have
taken place, rating enables
pricing and line items, and
billing gathers the line items
to create a bill to send to
the consumer and collect
payment.
 Heat provides a REST API to
orchestrate multiple cloud
applications implementing
standards such as AWS
CloudFormation.
12

13. Havana Architecture (~Oct 2013)
13
Dashboard
Compute
Block
Storage
Network
Provides
UI for Provides
UI for
Provides
UI for
Provides
UI for
Provides
UI for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
Auth for Provides
Auth for
Provides
Auth for
Provides
volumes
for
Provide
connectivity
for
Stores
images in
Stores disk
files in
Identity
Object
Storage
Image
http://www.solinea.com
Orchestraton
Metering
Meters
usage of
Meters
usage of
Meters
usage of
Meters
usage of
Automates Automates
Automates
Automates

14. 14
 November 5-8, 2013 – Hong Kong!
 Registration and sponsorships now open
– New: Two tiers of registration, please read carefully
 Call for speakers deadline July 31
 Book your travel early, room blocks are filling up!
 Travel Assistance Program – applications in July
 More details at openstack.org/summit

15. Ken Pepple
ken@solinea.com
http://www.solinea.com
Accelerating the adoption of Cloud Computing