Create Jenkinsfile

Added the jenkins file for the cicd setup.

Author: ap-dev-github

Jenkinsfile

@@ -0,0 +1,63 @@
+pipeline {
+  agent any
+
+  environment {
+    VENV = 'venv'
+  }
+
+  stages {
+    stage('Clone Repo') {
+      steps {
+        git 'https://github.com/ap-dev-github/sentiment-analyzer-api.git'
+      }
+    }
+
+    stage('Set Up Python') {
+      steps {
+        sh '''
+          python3 -m venv venv
+          . venv/bin/activate
+          pip install --upgrade pip
+          pip install -r requirements.txt
+        '''
+      }
+    }
+
+    stage('Lint & Security') {
+      steps {
+        sh '''
+          . venv/bin/activate
+          flake8 .
+          bandit -r . || true
+          isort . --check-only
+          mypy . || true
+        '''
+      }
+    }
+
+    stage('Run Tests') {
+      steps {
+        sh '''
+          . venv/bin/activate
+          pytest tests/ --junitxml=results.xml
+        '''
+      }
+    }
+
+    stage('Deploy to Lambda') {
+      steps {
+        sh '''
+          . venv/bin/activate
+          npm install -g serverless
+          serverless deploy --stage dev
+        '''
+      }
+    }
+  }
+
+  post {
+    always {
+      junit 'results.xml'
+    }
+  }
+}