Elevating CI/CD: A Journey with Jenkins and Docker Day - 27

Welcome to the exhilarating realm of continuous integration and continuous deployment (CI/CD)! In this blog post, we embark on a thrilling journey, exploring the synergies of Jenkins and Docker to transform your software delivery pipelines into robust, efficient, and scalable processes.

Unveiling the Challenges: 🚀

1. Efficient Code Integration:

   • Challenge: Corralling code changes seamlessly from a version control system.

   • Solution: The "Code" stage in our Jenkins pipeline script elegantly clones your repository, setting the tone for an efficient integration process.

2. Majestic Build & Test:

   • Challenge: Crafting a Docker image for your application and executing robust tests.

   • Solution: Enter the "Build & Test" stage, where Docker commands orchestrate the magic. Watch as your application transforms into a containerized masterpiece.

3. Fortress-like Image Scanning:

   • Challenge: Ensuring the security of your Docker image.

   • Solution: Although currently a placeholder, our pipeline is ready for the future integration of advanced image scanning tools to fortify your application.

4. Safe Image Push to Docker Hub:

   • Challenge: Hoisting your Docker image to a central repository securely.

   • Solution: The "Push Image" stage handles Docker Hub credentials with finesse, ensuring your image is tagged, logged in, and gracefully pushed to Docker Hub.

5. Controlled Application Deployment:

   • Challenge: Unleashing your application into the wild in a consistent and reliable manner.

   • Solution: The grand finale - the "Deploy" stage! Docker Compose orchestrates a controlled deployment, ensuring a smooth transition to your updated application.

The Jenkins Declarative Pipeline Script: 🛠️

pipeline {
    agent any
    stages {
        stage("code"){
            steps{
                git url: "https://github.com/1visha1/node-todo-cicd.git", branch: "master"
                echo "copy code"
            }
        }
        stage("build & test"){
            steps{
                sh "docker build -t node-app-test-new ."
                echo "building docker image and testig"
            }
        }
        stage("scan image"){
            steps{
                echo "image scan"
            }
        }

        stage("push image"){
            steps{
                withCredentials([usernamePassword(credentialsId:"dockerHub",passwordVariable:"DP",usernameVariable:"DU" )]){
                    sh "docker tag node-app-test-new:latest ${env.DU}/node-app-test-new:latest"
                    sh "docker login -u ${env.DU} -p ${env.DP}"
                    sh "docker push ${env.DU}/node-app-test-new:latest"
                    echo "image uploading on docker hub"
                }
            }
        }
        stage("deploy"){
            steps{
                sh "docker-compose down && docker-compose up -d"
                echo "deploing app"

            }
        }
    }
}

Conclusion: 🎉

Congratulations! By incorporating this Jenkins declarative pipeline script into your CI/CD arsenal, you're not just overcoming challenges – you're orchestrating a symphony of seamless deployments. Customize, iterate, and witness your CI/CD dreams take flight. Happy coding and deploying! 🚀✨