Closed PaaS to Open PaaS Migrating Google App Engine Apps to OpenShift PRESENTED BY Shekhar Gulati 

AGENDA ● Introductions ● Overview ● What is CapeDwarf ● OpenShift Ecosystem ● Demo 

WHO AM I? • Shekhar Gulati • OpenShift Developer Evangelist at Red Hat • 8 years of software development experience • Learning JavaScript these days :) • Java / NoSQL/ Cloud • Loves to learn and try new technologies • Twitter Handle : shekhargulati • Github https://github.com/shekhargulati • Slides https://speakerdeck.com/shekhargulati 

WHO ARE YOU? 

● We all know Google App Engine, right? – Google's platform to build web applications on the cloud. – Supports Java, Python , and Go – Automatic scaling and load balancing – Transactional data model based on Big Table – Additional features like Mail, XMPP, Google Accounts, Cron, Memcache, Image, etc. GOOGLE APP ENGINE 

● API ● The services behind ● Scalability , reliability, size, price,... ITS ALL ABOUT 

Google App Engine is Great But ... 

● Can't port existing applications ● Requires change in mindset ● Lock-in ● Platform limitations like write to file system ● Deployment environment does not replicate the same restrictions of the Production ● Not open source ● Every GET or POST from the one server to other, is aborted if it has not finished within 10 seconds ● Pace of innovation is very slow ● Public cloud only GAE LIMITATIONS 

What if you could get Java GAE for free? 

● Java GAE for Free ● Easy setup ● Debug support ● Multi node ● Migrate data Now you can == JBoss CapeDwarf CAPEDWARF 

● Drop in replacement for GAE – Take an existing GAE app and drop into JBossAS env – It just works ● No vendor lock-in ● Enable cluster debugging / testing ● On-premise cloud CAPEDWARF GOALS 

● CapeDwarf implements GAE API on top of JBoss and other open source libs ● It runs on top of JBoss AS7 subsystem HOW DOES CAPEDWARF WORKS? 

● Big Table → Infinispan ● Tasks → HornetQ ● Search → Lucene and Hibernate ● Blobs → GridFS ● Clustering → JGroups ● XYZ → OSS or DIY CAPEDWARF TECHNOLOGY CHOICES 

OpenShift is PaaS by Red Hat Multi-language, Auto-Scaling, Self-service, Elastic, Cloud Application Platform 

Lowers Cost Improves Developer Efficiency Scales WHY PAAS? 

origin Public Cloud Service On- premise or Private Cloud Software Open Source Project FLAVORS OF OPENSHIFT 

Developer IDE Integrations Web Browser Console Command Line Tooling REST APIs INTERACTIONS 

18 https://openshift.redhat.com/app/account/new Promo code is JUDCONBR13 CREATING OPENSHIFT ACCOUNT 

● OpenShift is free-as-in-beer & free-as-in-freedom ● You get three free gears, each with 512MB memory and 1GB of disk space. ● Need more resources, just ask! ● The catch is we are in developer preview right now WHAT DO I GET? 

20 ➢ Login to OpenShift web console ➢ Click on “My Account” ➢ Namespace – JUDCONBR13 – Unique per user CREATING NAMESPACE 

21 Some terminology for today 1. Application – your web code and any data store. Has to be on 1 or more gears 2. Gear – is like a server. It can have only 1 language for the web programming. 3. Cartridge – it adds a language, a data store, or other functionality 4. Git – used for version control and managing code between server and your development machine 5. Ssh – command line tool to connect to your gear 

22 Install Ruby 1.8.7 or greater Install Git Install rhc OpenShift gem Refer to documentation INSTALLING CLIENT TOOLS 

23 rhc setup -l -> creates namespace -> upload ssh keys SETUP OPENSHIFT ENVIRONMENT 

24 OPENSHIFT CAPEDWARF QUICKSTART 

25 CAPEDWARF APP 

26 CLONE REPO $ rhc git-clone -a todo 

27 Look at template application 

28 $ git remote add upstream https://github.com/shekhargulati/todo- capedwarf.git $ git pull -s recursive -X theirs upstream master PULLING THE CODE 

29 $ git push PUSHING CODE TO CLOUD 

QUESTIONS? 

DONE!