Integrating Jenkins Pipeline Job with GitLab Using Jenkinsfile — Learning Jenkins

INTRODUCTION

In the previous tutorial, we integrated Jenkins pipeline with SonarQube + Node.js & pushed the image to Docker Hub using a pipeline script. Now, we will use a Jenkins file as a replacement for the Jenkins pipeline script. This makes it easier for us. if there are changes in the pipeline script, we don’t need to go into Jenkins. Just modify the script in the Jenkinsfile.

SETUP SSH KEY

Generate SSH key pair (public and private) to be added to both Jenkins and GitLab for connection during code pull.

ssh-keygen

Generate SSH KEY

SETUP SSH GITLAB

Create deploy keys on GitLab. Copy the SSH public key and add it to the key parameter.

Deploy Keys

SETUP SSH JENKINS

Add credentials to Jenkins. Copy the SSH private key and add it to the key parameter.