Code Rally is an IDE that allows users to write AI code in Java or JavaScript that can then race against other AIs simultaneously. It uses a backend of Cloudant NoSQL or DashDB SQL databases on Bluemix and the races are streamed in real-time. Code Rally demonstrates a hybrid cloud application with the server deployed to Bluemix on Cloud Foundry or Docker containers using WebSphere Liberty, while clients can be run locally. It utilizes technologies like REST, WebSockets, and JSON to enable polyglot programming and communication between components.

1. Race to the Finish!
Accelerate Your Skills
Erik Hochstedt, Software Developer
Jonathan West, Software Developer, @JonathanGWest
#HybridCloudTour

2. #HybridCloudTour
Introduction
2

3. #HybridCloudTour
Code Rally in a Nutshell
• Code Rally is an IDE and server, that allows the user to write AIs written
in Java (on WebSphere) or JavaScript (on Node.js), and then used in a
variety of interesting ways
• A user-friendly development environment that allows the writing of
simple AI code, which then becomes:
• Multi-player (race with other AIs simultaneously)
• Competitive (race replays, streaming, and leaderboard)
• Graphical (see races streamed in real-time)
3

4. #HybridCloudTour
Code Rally Tech and Architecture
• Everything we are showing is freely available right now
• Bluemix – the cloud technology behind Code Rally
• WASdev – home of WebSphere Liberty, which Code Rally is based
• Code Rally on developerWorks
• Open By Design
• Sneak a peak to see how it is implemented
• All the Code Rally code is open source in IBM DevOps Services (IDS)
4

5. #HybridCloudTour
Let’s Get Started!
5

6. #HybridCloudTour
Behind the Scenes: How to Build
a Hybrid Cloud-Based Application
Erik Hochstedt, Software Developer
Jonathan West, Software Developer, @JonathanGWest
#HybridCloudTour

7. #HybridCloudTour
The Technology Behind the Tracks
• WebSphere Liberty
• Node.js
• Cloud Foundry on IBM Bluemix
• Docker containers on IBM Bluemix
• Cloudant NoSQL backend on Bluemix / DashDB SQL backend
on Bluemix
• Development environment is WebSphere Developer Tools (Eclipse)
7

8. #HybridCloudTour
WebSphere Liberty: Bluemix Cloud and Local
• The dynamic Java EE 7 platform that enables your applications and
drives developer productivity and rock-solid production support
• Fast startup, low memory footprint, easy to configure, includes all the
latest Java 8 and Java EE 7 tech, plus fully supported by IBM with
many additional tools/resources/samples/docs/support
• Write once, deploy everywhere: Docker (local/private/Bluemix),
Cloud Foundry Bluemix (Public/Local/Hybrid), Cluster, etc.
8

9. #HybridCloudTour
Code Rally on Bluemix Cloud Foundry
w/ Cloudant
Twitter Microservice
• Written in Node.js, users may tweet at @CodeRally to
enter races on the server, implemented as microservice.
WebSphere Liberty Instant Runtime
• Code Rally Server bundled as a WAR application,
deployed to Cloud Foundry Liberty runtime.
• Java EE 7: JSP 2.3, WebSockets 1.1, JAX-RS 2.0,
Servlets 2.3, SSL/TLS 1.2
CloudAnt NoSQL Database
• Cloudant is a NoSQL database, based on CouchDB,
and hosted as a Bluemix Cloud Foundry service.
WebSphere Liberty Local Server
• Java Code Rally Race Client
• Java EE 7
• WebSockets 1.1
• Servlets 2.3
Node.js Local Server
• JavaScript Code Rally Race Client
HTTP
Requests and
WebSockets
9

10. #HybridCloudTour
Code Rally on Bluemix Containers
w/ DashDB
10
Twitter Microservice
• Written in Node.js, users may tweet at @CodeRally to
enter races on the server, implemented as microservice.
WebSphere Liberty Instant Runtime
• Code Rally Server bundled as a WAR application,
deployed to Cloud Foundry Liberty runtime.
• Java EE 7: JSP 2.3, WebSockets 1.1, JAX-RS 2.0,
Servlets 2.3, SSL/TLS 1.2
CloudAnt NoSQL Database
• DashDB is a Relational SQL cloud database,
focused on analytics and hosted in Bluemix.
WebSphere Liberty Local Server
• Java Code Rally Race Client
• Java EE 7
• WebSockets 1.1
• Servlets 2.3
Node.js Local Server
• JavaScript Code Rally Race Client
HTTP
Requests and
WebSockets

11. #HybridCloudTour
Demo
11

12. #HybridCloudTour
Web Technologies like Restful Web Services
and WebSockets Enables Polyglot Programming
• Communication with the Code Rally Server through standard Web
APIs, using HTTP requests, WebSockets and JSON.
• This central API is exposed and implemented by the WebSphere
Application Server application, with racers connecting through this
API to enter and compete in a race
12

13. #HybridCloudTour
Cloud Foundry and Docker on Bluemix
• Cloud Foundry is an Open Source PaaS offering, which underlies
IBM Bluemix's Cloud Foundry platform
• Rather than configuring and deploying a machine (IaaS), developers
target a runtime (WebSphere Liberty/Node.js/Asp.net/etc.), which
abstracts out the application infrastructure
• This lets developers focus on code
• Docker Containers allows the developer to package and deploy an
application and its dependencies across heterogeneous environments
• This allows developers greater control over the environment, and
is the basis for IBM Bluemix Containers
13

14. #HybridCloudTour
IBM DevOps Services — Delivery Pipeline
• The DevOps “glue” that ties together the Code Rally build, deployment,
and testing processes
• Automatically begins application deployment when a developer
commits a change set to Git
• Deploys builds to IBM Bluemix (both Cloud Foundry and Docker)
• But only if the automated test succeeds : )
14

15. #HybridCloudTour
Backend: Cloudant and DashDB
• Code Rally supports both local and cloud-based backend databases
• Cloudant is a NoSQL cloud database based on the open source
CouchDB, and DashDB is an analytics focused cloud database,
based on IBM DB2
• Provision a new 20GB cloud database with only a single command:
• CLI: cf create-service cloudantNoSQLDB Shared my_db
15

16. #HybridCloudTour
Learn More
• WebSphere Liberty trial download
• http://ibm.biz/Bd45Nn
• IBM Bluemix
• https://www.bluemix.net/
• Code Rally on developerWorks
• https://www.ibm.com/developerworks/community/blogs/code-
rally/entry/landing?lang=en
16

17. #HybridCloudTour
Session Break