RedHat OpenShift Container Platform

INTRODUCTION

This guide will demonstrate,

• How to create a new project in OpenShift
• Launch your first application
• Learn how to trigger new builds/images when you make your first Github commit

RESOURCES

• OpenShift Blog

• OpenShift-Contrail Demo

TRY IT OUT

• Sign up for OpenShift online

• Sign up for a GitHub account if you don't have one

• Login to OpenShift online
  
  Click Open Web Console
  
  

• Click New Project
  
  

• Provide a unique name, display name
  
  Click Create
  
  

• Click on Add to Project
  
  Select Python under Browse Catalog
  
  Select Django + PostgreSQL (Persistent)
  
  
  
  

• Login to Github
  
  Fork https://github.com/openshift/django-ex
  
  You must now have your own django-ex repository (https://github.com/<your-github-username>/django-ex)

• Copy the URL https://github.com/<your-github-username>/django-ex & go back to OpenShift UI

• In the window My-Project > Add to Project > Catalog > Django + PostgreSQL (Persistent) add your Github URL to the Git Repository URL field
  
  Click Create
  
  

• In the next window, you will be given instructions to download the OpenShift client & also to create your first project. There is also a URL under Making code changes block
  
  Save this URL
  
  

• Go to https://github.com/<your-github-username>/django-ex/settings/hooks
  
  Paste the URL you saved from the previous step into the Payload URL field
  Change Content-type to application/json
  
  Click Add Webhook
  
  
  
  

• A build should've been started by now. After the build has completed, you will find a URL in the Overview tab in OpenShift UI
  
  Clicking the URL should open your django web application
  
  
  
  

• Make some changes to the code, either in Github UI or on your local machine
  
  For example change the header in
  https://github.com/<your-github-username/django-ex/blob/master/welcome/templates/welcome/index.html line:214
  
  Commit the change

  BEFORE:
  
         line 214: <h1>Welcome to your Django application on OpenShift</h1>
  
  AFTER:
  
         line 214: <h1>This is my 1st Django application on OpenShift</h1>
  

• This change should trigger a new build automatically
  
  Clicking on the URL should open the application, which is deployed with the changes you made