Dev

Dockerfile

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+# ----- BUILD -----
+FROM node:18-alpine AS build
+WORKDIR /app
+COPY package*.json ./
+RUN npm install
+COPY . .
+RUN npm run build
+
+# ----- PRODUCTION -----
+FROM nginx:alpine
+COPY --from=build /app/build /usr/share/nginx/html
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

Jenkinsfile

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+pipeline {
+    agent any
+    options { timestamps() }
+
+    environment {
+        IMAGE = "safarebaei/monapp"
+        TAG   = "build-${BUILD_NUMBER}"
+    }
+
+    stages {
+
+        stage('Checkout') {
+            steps {
+                checkout scm
+            }
+        }
+
+        stage('Docker Build') {
+            steps {
+                bat 'docker version'
+                bat "docker build -t %IMAGE%:%TAG% ."
+            }
+        }
+
+        stage('Run (Docker)') {
+            steps {
+                bat """
+                docker rm -f monapp_test 2>nul || exit 0
+                docker run -d --name monapp_test -p 8082:80 %IMAGE%:%TAG%
+                """
+            }
+        }
+
+        stage('Smoke Test') {
+            steps {
+                bat """
+                ping -n 5 127.0.0.1 > nul
+                curl -I http://localhost:8082 | find "200 OK"
+                """
+            }
+        }
+
+        stage('Cleanup') {
+            steps {
+                bat "docker rm -f monapp_test 2>nul || exit 0"
+            }
+        }
+
+        stage('Push (Docker Hub)') {
+            steps {
+                withCredentials([
+                    usernamePassword(
+                        credentialsId: 'react_id',
+                        usernameVariable: 'DOCKER_USER',
+                        passwordVariable: 'DOCKER_PASS'
+                    )
+                ]) {
+                    bat """
+                    echo %DOCKER_PASS% | docker login -u %DOCKER_USER% --password-stdin
+                    docker tag %IMAGE%:%TAG% %IMAGE%:latest
+                    docker push %IMAGE%:%TAG%
+                    docker push %IMAGE%:latest
+                    """
+                }
+            }
+        }
+    }
+
+    post {
+        success {
+            echo '✅ Build + Smoke Test + Push Docker Hub OK'
+        }
+        failure {
+            echo '❌ Pipeline FAILED'
+        }
+        always {
+            bat "docker rm -f monapp_test 2>nul || exit 0"
+        }
+    }
+}