This document summarizes different cloud PaaS options for running Java applications. It discusses Google App Engine, Amazon Elastic Beanstalk, and VMware Cloud Foundry. For each option, it provides a brief overview of features like supported programming languages, scaling capabilities, and available services. It also notes that while PaaS platforms make development easier than IaaS, there are still limitations in flexibility and portability between platforms. The document concludes that there are tradeoffs to consider and it is worth exploring the different options.

1. Cloud PaaS with Java
Eberhard Wolff @ewolff | Bernd Kolb @berndkolb

2. About Me
 Eberhard Wolff
 Architecture & Technology Manager at adesso
 adesso is a leading IT consultancy in Germany
 We are hiring
 Speaker
 Author (i.e. first German Spring book)
 Blog: http://ewolff.com
 Twitter: @ewolff
 eberhard.wolff@adesso.de

3. And Me
 Bernd Kolb
 Development Architect @ SAP
 Speaker
 Author (i.e. first OSGi book)
 Blog: http://kolbware.de
 Twitter: @berndkolb
 b.kolb@kolbware.de

4. Agenda
 Some words about clouds
 IaaS
 PaaS
 Examples
 Google App Engine
 Amazon Beanstalk
 VMware Cloud Foundry

5. A Few Words about Clouds

6. Public Clouds

7. Private Clouds

8. Hybrid Clouds

9. IaaS – PaaS – SaaS
Infrastructure Platform Software
as a Service as a Service as a Service
> Virtual Servers > Virtual App Server > Software or Service
that you use
> Similar to Virtualization > Handles Scale-Out
> Components that you
> Manage Everything > Mostly Managed by add/integrate into your
Yourself Provider app

10. The Cloud’s Business Model

12. Bare metal
is not enough

13. PaaS
“Platform as a service (PaaS) is the delivery of a
computing platform and solution stack as a service.”

14. PaaS - Advantages
 Easier to use than IaaS:You would need to install a server
anyway
 Automatic scaling
 Resources automatically added
 Can offer additional service
 Tuned for Cloud
 Technical e.g. data store, messaging, GUI elements
 …but IaaS does the same (Amazon)

15. PaaS - Disadvantages
 Less flexible
 Pre-defined programming model
 Defines environment
 Programming model might be different
 Hard to port existing code
 Need to learn
 Lock-in
 Higher-value services
 Development in the Cloud
 Potentially expensive

16. Clouds by Example

18. Google
AppEngine

19. Google AppEngine
 Infrastructure offered by Google
 Infrastructure completely hidden – pure PaaS
 Supports Java and Python
 Very restrictive sandbox
 Java classes white list
 no Thread, no file system, …
 Supports version handling of applications
 Supports elastic scaling
 Documentation + SDK + Eclipse Plug In available
 SDK contains environment for local tests
http://code.google.com/appengine/

20. Google AppEngine
for Business
 Centralized administration.
 99.9% uptime SLA
 Premium developer support available.
 Sign on for users from your Google Apps domain
 Announced
 SSL on your company’s domain for secure communications
 Access to advanced Google services
 Relational database
http://code.google.com/appengine/

21. Google AppEngine
Services
 Bigtable* (NoSQL)  Task queuing*
 Memcache  Blob store* for data >1MB
 URL Fetch  Channel (talk to JavaScript
 EMail in the browser)
 XMPP* (proprietary API)  Numerous other services
 Image Manipulation*
available (not tied to App
Engine)
 Authentication /
 Google Predict, Google
Authorization* BigQuery, AdSense, Search,
…
* Proprietary API

22. AWS
Elastic Beanstalk

23. AWS Elastic Beanstalk
 Collection of Cloud Offerings (mostly IaaS)
 Infrastructure visible
 Based on the Amazon EC2 infrastructure, Auto Scaling and S3
 Only Java
 Linux + OpenJDK + Tomcat
 Currently in beta
 only in US-East
 Eclipse Plug In available
 Supports version handling of applications
 Supports elastic scaling depending on load indicators
 Simple Monitoring built in
 Detailed control over the environment
 Tomcat parameters, used AMIs, log in to machine etc.
http://aws.amazon.com/elasticbeanstalk/

24. AWS Elastic Beanstalk
 Much like your average Enterprise Java environment
 =Tomcat + RDBMS
 Cloud features like elastic scaling available
 Can easily add other AWS elements
 Runs on a proven environment
 But: 1 server = 1 virtual machine
 GAE can run multiple applications on one machine
 More cost efficient (?)
 Scaling is “slow” as an image needs to be started and provisioned
http://aws.amazon.com/elasticbeanstalk/

25. AWS
Services
 Elastic Compute Cloud  Simple Email Service (SES)*
(EC2)  Virtual Private Cloud (VPC)*
 Elastic Map Reduce*  Simple Storage Service (S3)*
 Auto Scaling  Elastic Block Storage (EBS)*
 SimpleDB : Big Table like  …
NoSQL database*
 Simple Queue Service (SQS)
*  Third party offerings like
 https://mongohq.com/ for
 Simple Notification Service MongoDB
(SNS)*  https://cloudant.com/ for
 Relational Database Service CouchDB
(RDS)
* Proprietary API

26. AWS
Elastic Beanstalk
Demo

27. VMware
Cloud Foundry

28. VMware Cloud Foundry
 Open Source
 At GitHub under Apache2 license
 Pretty new
 No commercial offering yet
 Hosted at cloudfoundry.com, currently closed beta
 Can run Java, Ruby and Node.js
 Spring, Grails, Rails, Sinatra & Node supported
 Support for other languages currently in development by the community
 Can be hosted anywhere
 IaaS integration is not part of the open-sourced components
 Eclipse Plug In available
 Supports elastic scaling depending on load indicators
 Well… you can build it 
http://aws.amazon.com/elasticbeanstalk/

29. VMware Cloud Foundry
 Much like your average Enterprise Java environment
 =Tomcat + RDBMS
 Cloud features like elastic scaling available
 Runs on a proven environment (Ubuntu)
 Allows access to Tomcat’s log files
 1 virtual machine = n servers
http://aws.amazon.com/elasticbeanstalk/

30. VMware Cloud Foundry
Services
 Relational Database Service (MySQL)
 Key-Value Store (Redis)
 Document Store (mongoDB)
 Messaging Service (RabbitMQ)
 More to come in the future
 API to build your own service
* Proprietary API

31. VMware
Cloud Foundry
Demo

33. Summary
General
It’s very easy to run Java apps in the cloud
Some things are different, not everything is solved
IaaS
Maximum control
Automatic installation needed
Google App Engine
Very limited sandbox
Advantage?
Amazon Beanstalk
Standard Enterprise Java Stack
Lots of additional Amazon Web Services
Cloud Foundry
Services model
Open Source
There is more – it’s worth exploring

34. Wir suchen Sie als
 Software-Architekt (m/w)
 Projektleiter (m/w)
 Senior Software Engineer (m/w)
 Kommen Sie zum Stand und gewinnen Sie ein iPad 2!
jobs@adesso.de
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