Presented at JAX London 2013 Public, private, and hybrid; software, platform, and infrastructure. This talk will discuss the current state of the Platform-as-a-Service space, and why the keys to success lie in enabling developer productivity, and providing openness and choice. We'll do this by considering the success of Open Source in general, look at the Cloud Foundry project, and find out why Cloud Foundry-based PaaSes are the best places to host your applications written in Java and other JVM-based languages.

1. Andy Piper | @andypiper | apiper@gopivotal.com
Cloud Foundry Developer Advocate, Pivotal
Run Your Java Apps on
Cloud Foundry

2. Hello
I’m Andy

3. Developer Advocate @ Cloud Foundry
social web enthusiast
maker, educator, LEGO fan
OSS contributor
Eclipse Project Lead (Paho / MQTT)
excited by “what’s next”, Internet of Things, etc.
!
!
@andypiper
apiper@gopivotal.com
a few things about me

4. Developer Advocate?
hellz to the yeah!

6. @andypiper
!
[works on]
!
#cloudfoundry
!
[at]
!
@gopivotal

7. 1. Why is an Open Cloud Platform important?
2. What is Cloud Foundry?
3. Java support in the open cloud

8. Why is an Open Cloud Platform important?

9. From: torvalds@klaava.Helsinki.FI
Newsgroups: comp.os.minix
Date: 25 Aug 91 20:57:08 GMT
Organization: University of Helsinki
1991
An important year in software
Hello everybody out
there using minix !
I’m doing a (free)
operating system
(just a hobby,
won’t be big and
professional like
gnu) for 386(486)
AT clones.

10. ~21 years later: Linux has won

11. #P0WN ALL
TEH
GADGETZ !
Linux runs everywhere
(even old versions, on crashy
airline entertainment systems...)

12. It works.

13. Don’t be locked-in
do you know what is coming
tomorrow?

14. What is Cloud Foundry?

15. Software
Gmail, Salesforce,
Flickr, Google Docs...
Platform
Google AppEngine,
Heroku, Cloud Foundry,
EngineYard, Apprenda...
Infrastructure
3 layers
Amazon EC2, Google CE,
OpenStack, vSphere,
Joyent, Cloud Stack,
Eucalyptus...
IaaS, PaaS, SaaS

16. Cloud Foundry - the Open PaaS
Public&
Clouds
Private&
Clouds
CUSTOM
RUNTIMES
Micro&
Clouds
CUSTOM
SERVICES
Open Source

17. “… we believe that
the best solution
should be available
on top of any cloud
and not just be
locked into EC2”
!
- Mike Soby in JAX Magazine
Special Edition

18. All the pieces to make
your own!
“if you can’t open it, you
don’t own it” (O’Reilly MAKE)

19. Open & public from the start
Code all on Github

20. Why is it so hard...?
A real deployment flow (!)

21. DEVELOPER
OPERATOR
cf#iaas.yml+
target+<my+cloud>+
provision+<my+cloud>+
push+<my+app>+
add_capacity+<my+cloud>
create+<my+services>+
bind+<my+services>+
scale+<my+app>++100
Cloud Deployment: 2-4 hours
An alternative approach...
App Deployment: 30-90 seconds
Cloud Foundry can
make it simpler!

22. CLOUD FOUNDRY
Demo

23. Java (and JVM language) support
in Cloud Foundry

24. From VM-centric to Application Centric
App
App
App
App
Dev Framework
Dev Framework
Dev Framework
Configurations
Configurations
Manifests, Automations
JVM
JVM
App Server
App Server
VM
VM
Infrastructure
One
Infrastructure
Two
Container 1
JVM
Container 2
JVM
App Server
App Server
Infrastructure
One
Infrastructure
Two

25. Buildpacks
Buildpacks are responsible for preparing the
machine image for an application
Application
Buildpack
Container
Libraries
DEA
Runtime
Operating System
}
Droplet

26. Compatibility
Cloud Foundry buildpacks follow the
Heroku buildpack design
Cloud Foundry and Heroku buildpacks are compatible
(if you take care to make them compatible)
!
Other PaaS providers are adopting the
buildpack design - emerging convention

27. Built-in Buildpacks
→
→
→

28. Tested Buildpacks
https://github.com/cloudfoundry-community/cf-docs-contrib/wiki/Buildpacks
Containers
Languages
Haskell

29. Java Buildpack
Supports a variety of JVM languages, containers,
and frameworks with a modular, configurable, and
extensible design

30. “The primary objective of the Java buildpack is to be
the easiest way to run a Java application. The word
easiest can mean a lot of things, but to me it means
that a developer can push an application and have an
“it just works™” experience.”
!
- Ben Hale, Java buildpack engineer
http://blog.cloudfoundry.com/2013/09/06/introducing-the-cloud-foundry-java-buildpack/

31. Java Buildpack Concepts
Containers
Frameworks
Java main()
Spring config
Play config
Play JPA config
New Relic
Tomcat
Groovy
Spring Boot CLI
Play
JREs
OpenJDK, etc.

32. Container Detection Criteria
Java main()
META-INF/MANIFEST.MF exists
with Main-class attribute set
Tomcat
WEB-INF directory exists
Groovy
.groovy file with a main() method, or!
.groovy file with no classes, or!
.groovy file with a shebang (#!) declaration
Spring Boot CLI
one or more POGO .groovy files
with no main() method, and
no WEB-INF directory
Play
start and lib/play.play_*.jar
exist
Choose zero or one

33. Framework Detection Criteria
Spring
spring-core*.jar exists
Play config
Play application detected
Play JPA config
play-java-jpa plugin exists in app
New Relic
New Relic service bound to app
Choose all that apply

34. Customization
Two ways to customize the Java buildpack
Configure artifacts used by standard
JREs, Containers, and Frameworks
Extend the buildpack with your own JREs,
Containers, and Frameworks
Customization is done by
forking the buildpack
→

35. Choice!
• IBM donated WebSphere Liberty Buildpack
http://blog.cloudfoundry.com/2013/09/09/ibm-websphereliberty-buildpack-contributed-to-cloud-foundry/
• Other forks add additional containers and frameworks Jonas, Dropwizard, Karaf, etc

36. Tooling support
$ mvn clean package cf:push!
$ gradle clean assemble cf-push
http://blog.cloudfoundry.com/2013/10/29/java-tooling/

37. the new Spring
spring.io

38. XD
BOOT
Stream, Taps, Jobs
GRAILS
Bootable, Minimal, Ops-Ready
Full-stack, Web
INTEGRATION
BATCH
BIG DATA
WEB
Channels, Adapters,
Filters, Transformers
Jobs, Steps,
Readers, Writers
Ingestion, Export,
Orchestration, Hadoop
Controllers, REST,
WebSocket
DATA
RELATIONAL
NON-RELATIONAL
CORE
FRAMEWORK
SECURITY
GROOVY
REACTOR

39. Groovy and Spring Boot

40. Groovy and Spring Boot

41. Groovy and Spring Boot

42. Spring and the Cloud
• Goal: deploy Spring apps to the cloud without
changing a single line of code
• Cloud Foundry automatically re-configures bean
definitions to bind to cloud services
• Works with Spring and Grails

43. Portability

44. SPRING
Demo

45. … and finally …

46. Try It!
http://run.pivotal.io

47. Join us!
... a pull request is all it
takes!

48. Connect
http://twitter.com/andypiper
http://andypiper.co.uk
http://slideshare.net/andypiper

49. Credits
• Padlock http://www.flickr.com/photos/bpc009/3328427457/
• Other images are author’s own, or royalty-free and CC-licensed works
from Wikimedia Commons
• Thanks to Scott Frederick, Josh Long and Guillaume Laforge for content