Add Jenkins pipeline with automated builds

Jenkinsfile

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+pipeline {
+    agent any
+    
+    tools {
+        maven 'Maven 3.9.5'
+        jdk 'JDK 17'
+    }
+    
+    triggers {
+        pollSCM('H/5 * * * *')
+    }
+    
+    environment {
+        MAVEN_OPTS = '-Xmx1024m'
+        PROJECT_NAME = 'spring-petclinic'
+    }
+    
+    stages {
+        stage('Checkout') {
+            steps {
+                echo 'Checking out code...'
+                checkout scm
+                script {
+                    sh 'git rev-parse --short HEAD'
+                    sh 'git log -1 --pretty=%B'
+                }
+            }
+        }
+        
+        stage('Build') {
+            steps {
+                echo 'Building project...'
+                sh './mvnw clean compile -DskipTests'
+            }
+        }
+        
+        stage('Test') {
+            steps {
+                echo 'Running tests...'
+                sh './mvnw test'
+            }
+            post {
+                always {
+                    junit testResults: '**/target/surefire-reports/*.xml', allowEmptyResults: true
+                    jacoco(
+                        execPattern: '**/target/jacoco.exec',
+                        classPattern: '**/target/classes',
+                        sourcePattern: '**/src/main/java',
+                        exclusionPattern: '**/*Test*.class'
+                    )
+                }
+            }
+        }
+        
+        stage('Code Quality') {
+            steps {
+                echo 'Running checkstyle...'
+                sh './mvnw checkstyle:checkstyle'
+            }
+            post {
+                always {
+                    recordIssues(
+                        enabledForFailure: true,
+                        tool: checkStyle(pattern: '**/target/checkstyle-result.xml')
+                    )
+                }
+            }
+        }
+        
+        stage('Package') {
+            steps {
+                echo 'Packaging application...'
+                sh './mvnw package -DskipTests'
+            }
+        }
+        
+        stage('Archive') {
+            steps {
+                echo 'Archiving artifacts...'
+                archiveArtifacts artifacts: '**/target/*.jar', 
+                                fingerprint: true,
+                                allowEmptyArchive: false
+            }
+        }
+    }
+    
+    post {
+        success {
+            echo 'Build successful!'
+        }
+        failure {
+            echo 'Build failed!'
+        }
+        always {
+            cleanWs(
+                cleanWhenNotBuilt: false,
+                deleteDirs: true,
+                disableDeferredWipeout: true,
+                notFailBuild: true
+            )
+        }
+    }
+}
+

Jenkinsfile.gradle

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+pipeline {
+    agent any
+    
+    tools {
+        jdk 'JDK 17'
+    }
+    
+    triggers {
+        pollSCM('H/5 * * * *')
+    }
+    
+    environment {
+        GRADLE_OPTS = '-Xmx1024m -Dorg.gradle.daemon=false'
+        PROJECT_NAME = 'spring-petclinic'
+    }
+    
+    stages {
+        stage('Checkout') {
+            steps {
+                echo 'Checking out code...'
+                checkout scm
+                script {
+                    sh 'git rev-parse --short HEAD'
+                    sh 'git log -1 --pretty=%B'
+                }
+            }
+        }
+        
+        stage('Build') {
+            steps {
+                echo 'Building with Gradle...'
+                sh './gradlew clean compileJava --no-daemon'
+            }
+        }
+        
+        stage('Test') {
+            steps {
+                echo 'Running tests...'
+                sh './gradlew test --no-daemon'
+            }
+            post {
+                always {
+                    junit testResults: '**/build/test-results/test/*.xml', allowEmptyResults: true
+                    jacoco(
+                        execPattern: '**/build/jacoco/*.exec',
+                        classPattern: '**/build/classes',
+                        sourcePattern: '**/src/main/java',
+                        exclusionPattern: '**/*Test*.class'
+                    )
+                }
+            }
+        }
+        
+        stage('Code Quality') {
+            steps {
+                echo 'Running checkstyle...'
+                sh './gradlew checkstyleMain checkstyleTest --no-daemon'
+            }
+            post {
+                always {
+                    recordIssues(
+                        enabledForFailure: true,
+                        tool: checkStyle(pattern: '**/build/reports/checkstyle/*.xml')
+                    )
+                }
+            }
+        }
+        
+        stage('Package') {
+            steps {
+                echo 'Packaging application...'
+                sh './gradlew bootJar --no-daemon'
+            }
+        }
+        
+        stage('Archive') {
+            steps {
+                echo 'Archiving artifacts...'
+                archiveArtifacts artifacts: '**/build/libs/*.jar', 
+                                fingerprint: true,
+                                allowEmptyArchive: false
+            }
+        }
+    }
+    
+    post {
+        success {
+            echo 'Build successful!'
+        }
+        failure {
+            echo 'Build failed!'
+        }
+        always {
+            cleanWs(
+                cleanWhenNotBuilt: false,
+                deleteDirs: true,
+                disableDeferredWipeout: true,
+                notFailBuild: true
+            )
+        }
+    }
+}
+

jenkins-quickstart.sh

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+#!/bin/bash
+
+# Jenkins Quick Start Script for Spring PetClinic
+# This script helps you set up and configure Jenkins for the project
+
+set -e
+
+# Color codes for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Function to print colored output
+print_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+print_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+print_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# Function to check if a command exists
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+}
+
+# Check prerequisites
+print_info "Checking prerequisites..."
+
+if ! command_exists docker; then
+    print_error "Docker is not installed. Please install Docker first."
+    exit 1
+fi
+
+if ! command_exists docker-compose || ! command_exists "docker compose"; then
+    print_error "Docker Compose is not installed. Please install Docker Compose first."
+    exit 1
+fi
+
+print_success "Prerequisites check passed!"
+
+# Start Jenkins
+print_info "Starting Jenkins container..."
+docker compose up -d jenkins
+
+# Wait for Jenkins to start
+print_info "Waiting for Jenkins to start (this may take a minute)..."
+sleep 30
+
+# Check if Jenkins is running
+if ! docker ps | grep -q jenkins; then
+    print_error "Jenkins container failed to start"
+    exit 1
+fi
+
+print_success "Jenkins container is running!"
+
+# Get initial admin password
+print_info "Retrieving Jenkins initial admin password..."
+INITIAL_PASSWORD=$(docker exec jenkins cat /var/jenkins_home/secrets/initialAdminPassword 2>/dev/null || echo "")
+
+if [ -z "$INITIAL_PASSWORD" ]; then
+    print_warning "Could not retrieve initial admin password. Jenkins might still be initializing."
+    print_info "You can retrieve it later with: docker exec jenkins cat /var/jenkins_home/secrets/initialAdminPassword"
+else
+    print_success "Initial Admin Password: ${GREEN}${INITIAL_PASSWORD}${NC}"
+    echo ""
+    echo "=================================================="
+    echo "IMPORTANT: Save this password!"
+    echo "Initial Admin Password: ${INITIAL_PASSWORD}"
+    echo "=================================================="
+    echo ""
+fi
+
+# Display access information
+echo ""
+print_info "Jenkins Setup Information:"
+echo "  - Jenkins URL: http://localhost:8080"
+echo "  - Container Name: jenkins"
+echo "  - Default Admin Password: See above"
+echo ""
+
+print_info "Next Steps:"
+echo "  1. Open http://localhost:8080 in your browser"
+echo "  2. Enter the initial admin password shown above"
+echo "  3. Click 'Install suggested plugins'"
+echo "  4. Create your first admin user"
+echo "  5. Follow the setup guide in JENKINS_SETUP.md"
+echo ""
+
+print_info "Useful Commands:"
+echo "  - View Jenkins logs: docker logs -f jenkins"
+echo "  - Stop Jenkins: docker compose stop jenkins"
+echo "  - Restart Jenkins: docker restart jenkins"
+echo "  - Get admin password: docker exec jenkins cat /var/jenkins_home/secrets/initialAdminPassword"
+echo ""
+
+print_info "To set up the complete DevOps stack (Jenkins, SonarQube, Prometheus, Grafana, ZAP):"
+echo "  docker compose up -d"
+echo ""
+
+print_success "Jenkins quick start completed!"
+print_info "For detailed setup instructions, see JENKINS_SETUP.md"
+