using openshift paas

Using OpenShift Platform as a Service

Anuchit Chalothornanuchit@redlinesoft.net

Licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

Agenda

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

What is OpenShift?

OpenShift is Red Hat's Cloud Computing Platform as a Service (PaaS) offering.

Code Deploy Enjoy

Kind of like Amazon, right? Nope

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

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

What is Software as a Services

● It's an on-demand application● Nothing to install and configure● Example: Saleforce, Gmail

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

What's supported ?

How much does it cost?

● Free 3 gears● 512 MB RAM and 1GB Storage instance● Need more resource just ask

Pricing*

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.

Scale easy

Estimate the needs and costs

Getting start with OpenShift

Getting start with OpenShift

● Get an account at openshift.com● Create application● Code● Deploy

Using OpenShift to manage your applications in the cloud

Create an account

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

Install client tools

● Ruby 1.8.7+● Git

$ gem install rhc

Client installation guide

Setup your keys and domain

$ rhc setup

Show your domain info

$ rhc domain show

List available cartridges

$ rhc cartridge list

Create your application

$ rhc app create <app_name> <cartridge>

eg: create app with PHP 5.3

$ rhc app create myapp php-5.3

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

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.

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>

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.

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>

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"

Making change to your app

Finally, you're ready to send your changes to your application

$ git push

Learn more about using Git

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>

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

Thank You