oVirt and OpenStack look kind of similar from a distance. But they cater to different use-cases. That said, they do have some common needs. How can they work together? And when is it better to use one over the other?

1. 1
oVirt and RDO: Mixing the “old” and
the “new”
Dave Neary
Open Source and Standards, Red Hat

2. 2
Agenda
1. Comparing oVirt and OpenStack
2. Overlap and potential for interoperability

3. 3
Infrastructure as a Service
STORAGE
(GlusterFS)
HARDWARE
(x86)
VIRTUALIZATION
(KVM)
OPERATING SYSTEM
(RHEL)
APPLICATION PLATFORM
(JBOSS, PHP, RUBY, ETC)
APPLICATION
Automated and Managed
by the Public or Private
Cloud Offering
Managed and Controlled
by Customer (IT, Dev, or
User)
IaaS PaaS SaaS
Increased Control
Increased Automation

4. 4
Overview of OpenStack
Software and Community

5. OpenStack Design and Architecture
DASHBOARD
(Horizon)
COMPUTE
(Nova)
IDENTITY
SERVICE
(Keystone)
Modular architecture
Based on a (growing) set of core services
Designed for Scalability and Elasticity
BLOCK
STORAGE
(Cinder)
OBJECT STORE
(Swift)
NETWORKING
(Quantum)
IMAGE
SERVICE
(Glance)

6. 6
What is RDO?
RDO is a freely-available, community supported
distribution of OpenStack, packaged and
integrated for Red Hat Enterprise Linux and its
clones, and for Fedora
http://openstack.redhat.com

7. 7
PackStack
● PackStack is a tool to enable fast and simple
deployment of OpenStack
● Makes complex installation and configuration as simple
as possible
● Built on Puppet

8. 8
Overview of oVirt

9. 9
Overview of oVirt
Storage
Compute
Dashboard
Reporting
Identity

10. “Pets vs Cattle” (Yes, again)
The above adapted from Tim Bell, CERN
http://www.slideshare.net/noggin143/20121017-openstack-cern-accelerating-cience
“Future application architectures should use Cattle but Pets with strong
configuration management are viable and still needed”
- Tim Bell, CERN
“
Scale Up
- Servers are like pets.
Pets are given names, are unique,
lovingly hand raised and cared for.
When they get ill, you nurse them back
to health
Scale Out
- Servers are like cattle.
Cattle are given numbers and are
almost identical to each other. When
they get ill, you get another one.

11. oVirt vs OpenStack
oVirt OpenStack
Scale up Scale out
HA VMs – expect to stay up Stateless VMs – expect to be redundant
Resiliency in platform Resiliency in application
VMs need shared storage VMs need shared storage
Need to define VLANs Need to define VLANs
Needs dashboard Needs dashboard

12. 12
Overview of oVirt
Glance, Cinder
Neutrron
for SDN
FreeIPA for
Identity –
shared with
Keystone
Nova driver
for oVirt

13. 13
One Ring to Rule them All
● Cloud management software
● “Single pane of glass” to allow management of
traditional Virt and private and public IaaS
● Enables policy enforcement
● Facilitates service migration
● Frees you from vendor lock-in
● CloudForms Management Engine – Open Sourcing
soon, at a theatre near you!

14. 14
Scenario for today
● Install oVirt and OpenStack side by side
● Shared image storage with Glance
● Shared block storage (Gluster, NFS, iSCSI, FCoE for
oVirt, Cinder for OpenStack, consuming same storage)
● Shared SDN framework (define oVirt VLANS with
Neutron)
● Ability to monitor and control oVirt VMs in Horizon
● Freedom to gradually migrate “old” to “new”

15. REDHAT OPENSTACK |2013DOC144908-20130513r1
QUESTIONS?