Dockerfile - Configure Webhook - Trigger Jenkins Job - git

Create a Dockerfile

And push the Dockerfile to a separate Repository

Why we need separate repo?

Because it makes it easy to Jenkins to fetch the file(more on this later)

Now login into your Jenkins account

Creating a pipeline, click on the new item

Select the pipeline

Enter youre repo name (separate repo we created for jenkins-pipeline)

We're writing a script using groovy

Build is successfully

What we have done until now is a manual process, let's automate this stuff. select configure gitSCM

Configure web hook

To provide the API token(one type of secret), go to Jenkins

Copy the API token and paste this into the GitHub webhook. secret field

Save the stuff

Reload (You will get a successful checkmark) to sync

Now let's make a change in Dockerfile and push it to the separate repo we created,

This is the link we paste in Jenkins script

woohoo we successfully triggered the Jenkins, by committing a new change in the Dockerfile via GitHub

happy learning!!