Jenkins Declarative Pipeline

Jenkins allows developers to automate their build, test, and deployment processes, enabling them to focus on writing quality code. One of the features of Jenkins is the ability to define pipelines that automate the entire software delivery process. In this blog, we will discuss the Jenkins Declarative Pipeline and how it can be used to automate software delivery. The Declarative Pipeline syntax is based on YAML and follows a structured approach. The pipeline is divided into stages, with each stage representing a phase in the software delivery process. For example, a typical pipeline may have stages for building the code, running tests, deploying the application, and sending notifications.

Each stage consists of a set of steps that are executed sequentially. Steps can be used to perform tasks such as compiling the code, running tests, deploying the application, and sending notifications. Jenkins provides a large number of built-in steps that can be used to perform these tasks, and it also allows you to define custom steps using scripting languages such as Groovy.

One of the key benefits of using the Declarative Pipeline is that it provides a visual representation of the pipeline. The pipeline can be viewed in the Jenkins UI, allowing you to easily see the progress of the pipeline and identify any issues that may arise. This makes it easier to troubleshoot issues and provides greater visibility into the software delivery process. Jenkins also provides a numbers of plugins that can be used to extend the functionality of the pipeline.

To use the Declarative Pipeline in Jenkins, you will need to have a Jenkins instance installed and configured. Once you have Jenkins up and running, you can define your pipeline using YAML syntax.

pipeline {
  agent any

  stages {
    stage('Build') {
      steps {
        echo " These will Do Build"
        sh 'npm install'
        sh 'npm run build'
      }
    }

    stage('Test') {
      steps {
        echo "Test"
        sh 'npm run test'
      }
    }

    stage('Deploy') {
      steps {
        echo "Deploying..."
        sh 'npm run deploy'
      }
    }

  }
}