This document discusses OpenShift, a Platform as a Service (PaaS) offering from Red Hat. It defines Infrastructure as a Service (IaaS), PaaS, and Software as a Service (SaaS) and explains why PaaS is useful. It describes what is supported on OpenShift including scaling applications. It also discusses how to get started with OpenShift including creating an account, installing client tools, setting up keys and domains, deploying and managing applications.

1. Using OpenShift
Platform as a Service
Anuchit Chalothorn
anuchit@redlinesoft.net
Licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

2. Agenda
● What is OpenShift ?
● What is IaaS, PaaS, SaaS ?
● Why use PasS ?
● What's supported ?
● How much it cost?
● Getting start with OpenShift

3. What is OpenShift?
OpenShift is Red Hat's Cloud Computing Platform as a
Service (PaaS) offering.
Code Deploy Enjoy

4. Kind of like Amazon, right? Nope

5. What is Infrastructure as a Services
● Network, Storage and Compute offered on-demand
service
● Basically servers in the cloud
● You are still on the hook to config and manage the
cloud & stack
● Example : Amazon EC2

6. What is Platform as a Services
● It's an application platform
● Basically, app runtime environment in the cloud
● PaaS configures & manages the Cloud & stack for you
● Example: OpenShift

7. What is Software as a Services
● It's an on-demand application
● Nothing to install and configure
● Example: Saleforce, Gmail

8. So, why should I use PaaS
● Realize the benefits of the cloud quickly
● Let the PaaS configure, manage & scale the stack
● Make deployment to the cloud easy
● Focus on your app & users not the stack

9. What's supported ?

10. How much does it cost?
● Free 3 gears
● 512 MB RAM and 1GB Storage instance
● Need more resource just ask

11. Pricing*

12. What is gears?
A gear is a resource constrained container that runs one or
more user-specified software stacks, also known as
cartridges. Each gear has a limited amount of RAM and
disk space.

13. Scale easy

14. Estimate the needs and costs

15. Getting start with OpenShift

16. Getting start with OpenShift
● Get an account at openshift.com
● Create application
● Code
● Deploy
Using OpenShift to manage your applications in the cloud

17. Create an account
● Goto http://www.openshift.com
● Sign up an account

18. Install client tools
● Ruby 1.8.7+
● Git
$ gem install rhc
Client installation guide

19. Setup your keys and domain
$ rhc setup

20. Show your domain info
$ rhc domain show

21. List available cartridges
$ rhc cartridge list

22. Create your application
$ rhc app create <app_name> <cartridge>
eg: create app with PHP 5.3
$ rhc app create myapp php-5.3

23. Add cartridge to your app
$ rhc cartridge add -a <app_name> -c <cartridge>
eg: add MySQL cartridge
$ rhc cartridge add -a myapp -c mysql-5.1

24. Create scalable app
$ rhc app create -s myapp php-5.3
the "-s" is for scale, some cartridge may not
scale you should check in the web console.

25. Scale configure
OpenShift provide automatic scaling but you
can use a manual scale to fit for need.
$ rhc cartridge scale <cartridge> -a <app_name>
--min <min_gears> --max <max_gears>

26. Deploying your application
Each app has it own git repository. You can
clone, merge, push or pull your code from the
repository. If you're new to Git try this.

27. Making change to your app
If you create an application from the web
console, you'll need to tell Git to clone the
repository.
$ git clone <git_url>

28. Making change to your app
Once you make changes, you'll need to 'add' and 'commit'
those changes. Git requires that each commit have a
message to describe it.
$ git add .
$ git commit -m "check in an application"

29. Making change to your app
Finally, you're ready to send your changes to your
application
$ git push
Learn more about using Git

30. Domain alias
You can specify meaningful DNS names for your OpenShift
applications so that you can use your own DNS entries.
$ rhc alias add <app_name> <your_domain>

31. Working with GitHub
You can merge your project with GitHub by add the remote
repository then pull, merge code to any repository.
$ git remote add github git@github.com:user/repo.git

32. Thank You