Migrating a running
Cloud Foundry
from VMWare to OpenStack
• What is Cloud Foundry?
• IaaS and PaaS
• VMware vs. OpenStack
• The migration
• Conclusion
Cloud Foundry
• = application platform = PaaS software
• Open source software (apache 2)
API request

Router
Router

Droplet request

DEA
DEA
DEA
DEA
DEA

Router
Cloud Controller
Droplet change
notifications
Requ...
IaaS and PaaS
• Building against infrastructure requires
ops knowledge

• Building against a PaaS doesn’t
It’s all about the Apps!
VMware vs.
OpenStack
• VMware is a fine piece of technology
• If you have invested into it, no immediate
need to move away from it.

• OpenStack...
Our requirements
• We already had OpenStack knowledge
• For a public PaaS buying costs is

everything —> Saving license costs was
key!

• M...
… doubled monthly costs

quadrupled RAM and CPU cores!
The Migration
> 1 week to prepare
< 1 hour to execute
< 30 min downtime
• Setup the OpenStack environment
• Deploy Cloud Foundry on OpenStack
• Migrate configuration, data and apps
• Switch DNS e...
• Official migration announcement in the
anynines blog

http://rh.gd/a9vmw2sos

• A blog post about technical details will
...
Conclusion
Building against a PaaS
protects investments
made into software
development.
An infrastructure must
be present.
!

Which one doesn’t
matter.
Thank you!
CloudCamp.  Julian Fischer   Anynines - migrating a cloud foundry from vm ware to open-stack
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CloudCamp. Julian Fischer Anynines - migrating a cloud foundry from vm ware to open-stack

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Julian Fischer @railshoster - 'VMWare to OpenStack with a running Cloud Foundry' Learn from experience recently collected at anynines on how a VMWare based Cloud Foundry is moved to an OpenStack Havana infrastructure with barely no downtime.

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CloudCamp. Julian Fischer Anynines - migrating a cloud foundry from vm ware to open-stack

  1. 1. Migrating a running Cloud Foundry from VMWare to OpenStack
  2. 2. • What is Cloud Foundry? • IaaS and PaaS • VMware vs. OpenStack • The migration • Conclusion
  3. 3. Cloud Foundry
  4. 4. • = application platform = PaaS software • Open source software (apache 2)
  5. 5. API request Router Router Droplet request DEA DEA DEA DEA DEA Router Cloud Controller Droplet change notifications Request droplet start/stop Droplet heartbeat & exit messages Router Health Manager Get desired states Droplet / Service metadata Cloud Controller Database Consume a service Service Services Services (e.g. MySQL) Services (e.g. MySQL) (e.g. MySQL) (e.g. MySQL)
  6. 6. IaaS and PaaS
  7. 7. • Building against infrastructure requires ops knowledge • Building against a PaaS doesn’t
  8. 8. It’s all about the Apps!
  9. 9. VMware vs. OpenStack
  10. 10. • VMware is a fine piece of technology • If you have invested into it, no immediate need to move away from it. • OpenStack is an upcoming candidate and might become the industry standard for infrastructure • Open source and enterprise versions available (Piston, Canonical, HP, …)
  11. 11. Our requirements
  12. 12. • We already had OpenStack knowledge • For a public PaaS buying costs is everything —> Saving license costs was key! • Moving from a hosted VMWare to a selfhosted Openstack…
  13. 13. … doubled monthly costs quadrupled RAM and CPU cores!
  14. 14. The Migration
  15. 15. > 1 week to prepare
  16. 16. < 1 hour to execute
  17. 17. < 30 min downtime
  18. 18. • Setup the OpenStack environment • Deploy Cloud Foundry on OpenStack • Migrate configuration, data and apps • Switch DNS entries
  19. 19. • Official migration announcement in the anynines blog
 http://rh.gd/a9vmw2sos • A blog post about technical details will follow on blog.cloudfoundry.com
  20. 20. Conclusion
  21. 21. Building against a PaaS protects investments made into software development.
  22. 22. An infrastructure must be present. ! Which one doesn’t matter.
  23. 23. Thank you!

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