Calling a Jenkins build from outside of Jenkins

Question

I would like to set up a web interface where somebody could click "Start Job" and this will tell Jenkins to start a particular build job.

Answer 1

In your job configuration you setup a token and then create a POST request to JENKINS_URL/job/JOBNAME/build?token=TOKEN.

Answer 2

Jenkins has support for parameterized build as well.

So, if you want to pass parameters for configurable build generation, you can pass them by posting it while invoking Jenkins build request with http://YOURHOST/jenkins/job/PROJECTNAME/buildWithParameters.