jenkinsFile

pipeline {
    agent {
        docker {
            image 'deepeshgodhwani/custom-image:latest'
            args '--user root -v /var/run/docker.sock:/var/run/docker.sock'
        }
    }

    environment {
        GIT_CREDENTIALS_ID = 'github_credentials'
        DOCKER_CREDENTIALS_ID = 'docker_hub_credentials'
        DOCKER_REPO = "deepeshgodhwani"
        FRONTEND_IMAGE = 'qr-scanner'
        EMAIL_RECIPIENT = "deepeshgodhwani28@gmail.com"
        AWS_REGION = 'eu-north-1' // e.g., 'us-west-2'
        EC2_INSTANCE_IP = '13.60.92.96' // Replace with your EC2 instance's public IP
        AWS_CREDENTIALS_ID = 'aws-credentials' // Jenkins AWS credentials ID    
    }

    stages {
        stage('Checkout SCM') {
            steps {
                checkout([$class: 'GitSCM',
                          branches: [[name: '*/main']],
                          userRemoteConfigs: [[url: 'https://github.com/Deepeshgodhwani/QR-Code-Generator-and-Scanner',
                                               credentialsId: "${env.GIT_CREDENTIALS_ID}"]]
                ])
            }
        }

        stage("Build") {
            steps {
                // Fix npm permission issue
                sh 'rm -rf node_modules'
                sh 'npm install'
                sh 'docker build -t ${DOCKER_REPO}/${FRONTEND_IMAGE}:${BUILD_NUMBER} .'
            }
        }

        stage("Push image to Docker Hub") {
            steps {
                script {
                    docker.withRegistry('https://index.docker.io/v1/', "${DOCKER_CREDENTIALS_ID}") {
                        sh 'docker push ${DOCKER_REPO}/${FRONTEND_IMAGE}:${BUILD_NUMBER}'
                    }
                }
            }
        }

        stage("Deploy to EC2") {
            steps {
                script {
                    // Use AWS credentials for SSH access
                    withCredentials([sshUserPrivateKey(credentialsId: 'ec2-ssh-key', keyFileVariable: 'SSH_KEY')]) {
                        // SSH into EC2 instance and deploy the Docker image
                        sh """
                            ssh -o StrictHostKeyChecking=no -i ${SSH_KEY} ubuntu@${EC2_INSTANCE_IP} << 'EOF'
                                # Stop the existing container if it exists
                                docker stop ${FRONTEND_IMAGE} || true
                                docker rm ${FRONTEND_IMAGE} || true
                                
                                # Pull the latest Docker image from Docker Hub
                                docker pull ${DOCKER_REPO}/${FRONTEND_IMAGE}:${BUILD_NUMBER}
                                
                                # Run the new container
                                docker run -d --name ${FRONTEND_IMAGE} -p 3000:3000 ${DOCKER_REPO}/${FRONTEND_IMAGE}:${BUILD_NUMBER}
                            EOF
                        """
                    }
                }
            }
        }
    }
}