Update Jenkinsfile

Jenkinsfile

@@ -1,41 +1,70 @@
 pipeline {
-  agent docker { image 'python:alpine3.22' }
+  agent {
+    docker {
+      image 'python:3.11-slim'
+    }
+  }
+
+  environment {
+    APP_PORT = '3001'
+  }
+
   stages {
-    stage('Pre-build') {
+
+    stage('Install Dependencies') {
       steps {
-        sh 'python3 -m venv venv'
-        sh 'source venv/bin/activate'
-        sh 'pip3 --version'
-        sh 'pip install -r requirements.txt'  
+        sh '''
+          python --version
+          pip install --upgrade pip
+          pip install -r requirements.txt
+        '''
       }
     }
 
-    stage('Test') {
+    stage('Unit Tests') {
       steps {
         sh 'pytest test_app.py'
       }
     }
-    
+
+    stage('Run & Integration Test') {
+      parallel {
+
+        stage('Start App') {
+          steps {
+            sh '''
+              gunicorn --bind 0.0.0.0:${APP_PORT} app:app &
+              echo $! > gunicorn.pid
+            '''
+          }
+        }
+
+        stage('Integration Test') {
+          steps {
+            sh '''
+              sleep 5
+              curl -f http://localhost:${APP_PORT}
+            '''
+          }
+        }
+      }
+      post {
+        always {
+          sh '''
+            if [ -f gunicorn.pid ]; then
+              kill $(cat gunicorn.pid) || true
+            fi
+          '''
+        }
+      }
+    }
+
     stage('Containerization') {
       steps {
-        sh 'echo Docker Build Image..'
-        sh 'echo Docker Tag Image....'
-        sh 'echo Docker Push Image......'
+        echo 'Docker Build Image...'
+        echo 'Docker Tag Image...'
+        echo 'Docker Push Image...'
       }
     }
-    parallel {
-      stage('Run-and-test') 
-      {
-        steps { 
-          sh 'gunicorn --bind 0.0.0.0:3001 app:app' 
-        }
-      }
-      stage('Integration Testing') {
-        steps {
-          sh "sleep 10s" 
-          sh 'curl localhost:3001'
-        }
-      } 
-    }
   }
-}
+}