pipeline {
    agent any
 
    environment {
        IMAGE_NAME = "myapp"
        REGISTRY   = "registry.example.com"
    }
 
    stages {
        stage('Checkout') {
            steps {
                checkout scm
            }
        }
 
        stage('Build') {
            steps {
                sh 'npm ci'
                sh 'npm run build'
            }
        }
 
        stage('Test') {
            steps {
                sh 'npm test'
            }
            post {
                always {
                    junit 'test-results/*.xml'
                }
            }
        }
 
        stage('Docker Build') {
            steps {
                sh "docker build -t ${REGISTRY}/${IMAGE_NAME}:${BUILD_NUMBER} ."
            }
        }
 
        stage('Deploy') {
            when {
                branch 'main'
            }
            steps {
                withCredentials([usernamePassword(
                    credentialsId: 'registry-creds',
                    usernameVariable: 'USER',
                    passwordVariable: 'PASS'
                )]) {
                    sh "docker login -u $USER -p $PASS ${REGISTRY}"
                    sh "docker push ${REGISTRY}/${IMAGE_NAME}:${BUILD_NUMBER}"
                }
                sh "kubectl set image deployment/myapp myapp=${REGISTRY}/${IMAGE_NAME}:${BUILD_NUMBER}"
            }
        }
    }
 
    post {
        success {
            echo '배포 성공'
        }
        failure {
            echo '파이프라인 실패'
            // slackSend channel: '#alerts', message: "빌드 실패: ${env.JOB_NAME}"
        }
    }
}