diff --git a/Jenkinsfile b/Jenkinsfile
index 41a0325..03c3463 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,110 +1,21 @@
 pipeline {
-  agent any
-  environment {
-    MAVEN_CACHE = "${env.WORKSPACE}/.m2"
-    NPM_CACHE = "${env.WORKSPACE}/.npm-cache"
-    SONAR_TOKEN = credentials('sonar-token')
-  }
-  options {
-    timestamps()
-    skipStagesAfterUnstable()
-  }
-  stages {
-    stage('Checkout') {
-      steps {
-        checkout scm
-      }
+    agent any
+
+    tools {
+        // Tên này phải giống y hệt trong:
+        // Manage Jenkins → Tools → SonarQube Scanner installations
+        sonar 'SonarScanner'
     }
-    stage('Backend: Build & Test') {
-      agent {
-        docker {
-          image 'maven:3.9.9-eclipse-temurin-21'
-          args "-v ${env.WORKSPACE}/.m2:/root/.m2"
+
+    stages {
+        stage('Check SonarScanner') {
+            steps {
+                sh '''
+                    echo "PATH=$PATH"
+                    which sonar-scanner || true
+                    sonar-scanner --version
+                '''
+            }
         }
-      }
-      environment {
-        MAVEN_OPTS = '-Dmaven.repo.local=/root/.m2/repository'
-      }
-      steps {
-        dir('backend') {
-          sh './mvnw --version'
-          sh './mvnw clean test -Dmaven.repo.local=/root/.m2/repository'
-          sh './mvnw package -DskipTests -Dmaven.repo.local=/root/.m2/repository'
-        }
-      }
-      post {
-        always {
-          junit 'backend/target/surefire-reports/*.xml'
-        }
-      }
     }
-    stage('Backend: SonarQube Analysis') {
-      agent {
-        docker {
-          image 'maven:3.9.9-eclipse-temurin-21'
-          args "-v ${env.WORKSPACE}/.m2:/root/.m2"
-        }
-      }
-      steps {
-        withSonarQubeEnv('SonarQube') {
-          dir('backend') {
-            sh './mvnw sonar:sonar -Dsonar.projectKey=code-journey-backend -Dsonar.host.url=${SONAR_HOST_URL} -Dsonar.login=${SONAR_TOKEN} -Dmaven.repo.local=/root/.m2/repository'
-          }
-        }
-      }
-    }
-    stage('Frontend: Install & Build') {
-      agent {
-        docker {
-          image 'node:20-alpine'
-          args "-v ${env.WORKSPACE}/.npm-cache:/root/.npm -u root"
-        }
-      }
-      steps {
-        dir('frontend') {
-          sh 'npm ci --cache /root/.npm --prefer-offline'
-          sh 'npm run build'
-        }
-      }
-    }
-    stage('Frontend: SonarQube Analysis') {
-      agent {
-        docker {
-          image 'node:20-alpine'
-          args "-v ${env.WORKSPACE}/.npm-cache:/root/.npm -u root"
-        }
-      }
-      steps {
-        withSonarQubeEnv('SonarQube') {
-          dir('frontend') {
-            sh 'npm install -g sonar-scanner'
-            sh 'sonar-scanner -Dsonar.projectKey=code-journey-frontend -Dsonar.sources=src -Dsonar.host.url=${SONAR_HOST_URL} -Dsonar.login=${SONAR_TOKEN}'
-          }
-        }
-      }
-    }
-    stage('Docker: Build Images') {
-      when {
-        anyOf {
-          branch 'main'
-          branch 'develop'
-        }
-      }
-      agent {
-        docker {
-          image 'docker:24.0.5-dind'
-          args '--privileged -v /var/run/docker.sock:/var/run/docker.sock'
-        }
-      }
-      steps {
-        sh 'docker build -t code-journey-backend:latest backend'
-        sh 'docker build -t code-journey-frontend:latest frontend'
-      }
-    }
-  }
-  post {
-    always {
-      archiveArtifacts artifacts: 'backend/target/*.jar,frontend/.next/**', allowEmptyArchive: true
-    }
-  }
-}
+}
\ No newline at end of file