How to integrate github with Jenkins ?

Github plugin can be used to receive push notifications that can trigger a Jenkins job.

Install Github plugin

• Open Jenkins home page and Login as Admin (if security is enabled)
• Click manage Jenkins
• Click Configure Jenkins
• Go to Manage Plugins link on left side
• Select Github plugin from available plugins
• Click Download and Install
• Restart Jenkins

Configuration of Github project in a Jenkins job

• Open Jenkins home page
• Select the job
• Click Configure link on left side
• Inside Source code management section, Enter URL of Github projecthttp://github.com/username/project
• For authentication, provide username / password in advanced... options.

Receiving the push notifications from GitHub

• Open Jenkins home page and Login as Admin (if security is enabled)
• Click manage Jenkins
• Click Configure System
• In Github Web hook section, select auto-manage hook URLs
  
  OR
• In Github Web hook section, select Manually manage hook URLs
• Go to Github project page
• In Service Hooks tab, select Post-Receive URLs hook
• Add URL <root_URL_of_Jenkins>/github-webhook
• Open Jenkins home page
• Select the job
• Click Configure link on left side
• Select Build when a change is pushed to GitHub and Save.