How To Use Shared Libraries In A Jenkins Pipeline?

Configure Shared Library in Jenkins

STEP 1- Click on manage jenkins on the left side menu.
STEP 2- Click on configure system. Scroll down until you find the Global Pipeline Libraries section.
STEP 3- Under the Library section, configure values as below.

Referring Jenkins Shared Library from Pipeline

@Library ("test-library@branch") _

Example

@Library ("test-library@master") _

advancedPipeline(scmUrl: 'https://github.com/Burakolum/jenkins-Library.git',
                   registry: "burakolum/burak",
                   registryCredential: 'burakolum-dockerhub',
                   dockerImage: '' )

Also, can add your custom steps

Each of your custom steps is a different .groovy file inside your vars/ directory.

Create a file for your custom step.For example, buildDocker.groovy

#!/usr/bin/env groovy

def call(String registry){   
   sh 'sudo docker build -t $registry:$BUILD_NUMBER . '
   sh 'docker tag $registry:$BUILD_NUMBER docker.io/$registry:$BUILD_NUMBER'
}

You can also add parameters to your method - the example above has one parameter called registry.

To use the shared library in a pipeline, you add @Library('your-library-name') to the top of your pipeline definition

if you would like to see other custom steps you could look vars directory