Complete Jenkins CI/CD Project #Day-24

Wanderlust Three Tier Application Containerization

Deploying a MERN Stack Project Using Dockerfile and Docker-Compose with Jenkins Job Pipeline Trigger from Master on Agents node.

Pipeline Script

pipeline {
    agent{
        node{
            label "PROD"
        }
    }

    stages {
        stage('Code Clone from GitHub: Step-1') {
            steps {
                echo 'Cloning code from GitHub'
                git url:'https://github.com/nikunjdevcloud/wanderlust.git', branch: 'devops'
            }
        }
        stage('Code Build: Step-2') {
            steps {
                echo 'Building Docker image'
                sh 'docker build -t wanderlust-back-node:v1 .'
                echo 'Backend Docker image build done.'
                sh 'docker build -t wanderlust-front-react:v2 .'
                echo 'Frontend Docker image build done.'
            }
        }
        stage('Image Push to Docker Hub: Step-3') {
            steps {
                withCredentials([usernamePassword(
                    credentialsId: 'DockerHubCredentials',
                    passwordVariable: 'dockerHubPass',
                    usernameVariable: 'dockerHubUser'
                )]) {
                    echo 'Logging in to Docker Hub'
                    sh 'docker login -u ${dockerHubUser} -p ${dockerHubPass}'
                    echo 'Tagging Backend Docker image'
                    sh 'docker tag wanderlust-back-node:v1 ${dockerHubUser}/wanderlust-back-node:Backend'
                    echo 'Pushing Backend Docker image to Docker Hub'
                    sh 'docker push ${dockerHubUser}/wanderlust-back-node:Backend'

                    echo 'Tagging Frontend Docker image'
                    sh 'docker tag wanderlust-front-react:v2 ${dockerHubUser}/wanderlust-front-react:Frontend'
                    echo 'Pushing Frontend Docker image to Docker Hub'
                    sh 'docker push ${dockerHubUser}/wanderlust-back-node:Frontend'
                    echo 'Both Frontend and Backend Docker image Pushed to DockerHub Successfully Completed..!!'                
                }
            }
        }
        stage('Deploy with Docker Compose') {
            steps {
                echo 'Deploying with Docker Compose'
                sh 'docker-compose down'
                sh 'docker-compose up -d'
            }
        }
    }
}

************************************* 
Load distributed on each node by steps.
**************************************
pipeline {
    agent none

    stages {
        stage('Code Clone from GitHub: Step-1') {
            agent { label 'DEV' }
            steps {
                echo 'Cloning code from GitHub'
                git url:'https://github.com/nikunjdevcloud/wanderlust.git', branch: 'devops'
            }
        }
        stage('Code Build: Step-2') {
            agent { label 'PROD' }
            steps {
                echo 'Building Docker image'
                sh 'docker build -t wanderlust-back-node:v1 .'
                echo 'Backend Docker image build done.'
                sh 'docker build -t wanderlust-front-react:v2 .'
                echo 'Frontend Docker image build done.'
            }
        }
        stage('Image Push to Docker Hub: Step-3') {
            agent { label 'QA' }
            steps {
                withCredentials([usernamePassword(
                    credentialsId: 'DockerHubCredentials',
                    passwordVariable: 'dockerHubPass',
                    usernameVariable: 'dockerHubUser'
                )]) {
                    echo 'Logging in to Docker Hub'
                    sh 'docker login -u ${dockerHubUser} -p ${dockerHubPass}'
                    echo 'Tagging Backend Docker image'
                    sh 'docker tag wanderlust-back-node:v1 ${dockerHubUser}/wanderlust-back-node:Backend'
                    echo 'Pushing Backend Docker image to Docker Hub'
                    sh 'docker push ${dockerHubUser}/wanderlust-back-node:Backend'

                    echo 'Tagging Frontend Docker image'
                    sh 'docker tag wanderlust-front-react:v2 ${dockerHubUser}/wanderlust-front-react:Frontend'
                    echo 'Pushing Frontend Docker image to Docker Hub'
                    sh 'docker push ${dockerHubUser}/wanderlust-back-node:Frontend'
                    echo 'Both Frontend and Backend Docker image Pushed to DockerHub Successfully Completed..!!'                
                }
            }
        }
        stage('Deploy with Docker Compose: Last-Step') {
            agent { label 'DEV' }
            steps {
                echo 'Deploying with Docker Compose'
                sh 'docker-compose down'
                sh 'docker-compose up -d'
            }
        }
    }
}

***************************************************************
Wanderlust Agent-1 Dev
Wonderlust agent dev environment.

Wanderlust Agent-2 Prod
Wonderlust agent Prod environment.

Wanderlust Agent-3 QA
Wonderlust agent QA environment.


Workspace Created:

/home/ubuntu/app

Conclusion

Deploying a MERN stack project using Dockerfile and Docker-Compose with Jenkins job pipeline trigger from the master on agents node provides a robust and efficient CI/CD pipeline. This approach ensures seamless integration and continuous delivery of applications, leveraging the power of containerization for consistent environments across development, testing, and production. By automating the deployment process, teams can achieve faster release cycles, improved collaboration, and higher quality software, ultimately driving better business outcomes.

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