perf: optimize Docker build - use Alpine images, add timeout handling and retry logic

Dockerfile

@@ -1,5 +1,5 @@
 # 使用多阶段构建优化镜像大小
-FROM openjdk:17-jdk-slim as builder
+FROM amazoncorretto:17-alpine-jdk as builder
 
 # 设置工作目录
 WORKDIR /app
@@ -18,15 +18,19 @@ COPY src ./src
 # 构建应用
 RUN ./mvnw clean package -DskipTests
 
-# 运行时镜像
-FROM openjdk:17-jre-slim
+# 运行时镜像 - 使用更小的Alpine镜像
+FROM amazoncorretto:17-alpine
+
+# 安装curl用于健康检查
+RUN apk add --no-cache curl
 
 # 设置时区
 ENV TZ=Asia/Shanghai
-RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+RUN apk add --no-cache tzdata && \
+    ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 # 创建非root用户
-RUN groupadd -r spring && useradd -r -g spring spring
+RUN addgroup -g 1000 spring && adduser -u 1000 -G spring -s /bin/sh -D spring
 
 # 创建应用目录
 WORKDIR /app

Jenkinsfile

@@ -1,9 +1,8 @@
 pipeline {
     agent any
-    
-    options {
+      options {
         buildDiscarder(logRotator(numToKeepStr: '10'))
-        timeout(time: 30, unit: 'MINUTES')
+        timeout(time: 60, unit: 'MINUTES')  // 增加到60分钟
         timestamps()
     }
     
@@ -145,17 +144,37 @@ pipeline {
                 }
             }
         }
-        
-        stage('构建Docker镜像') {
+          stage('构建Docker镜像') {
             steps {
                 echo '🐳 构建Docker镜像...'
                 script {
-                    def image = docker.build("${IMAGE_NAME}:${IMAGE_TAG}")
-                    
-                    // 也创建latest标签
-                    sh "docker tag ${IMAGE_NAME}:${IMAGE_TAG} ${IMAGE_NAME}:latest"
-                    
-                    echo "✅ Docker镜像构建完成: ${IMAGE_NAME}:${IMAGE_TAG}"
+                    retry(2) {
+                        try {
+                            // 清理旧镜像以节省空间
+                            sh 'docker image prune -f || true'
+                            
+                            echo "开始构建Docker镜像: ${IMAGE_NAME}:${IMAGE_TAG}"
+                            
+                            // 使用timeout包装Docker构建
+                            timeout(time: 15, unit: 'MINUTES') {
+                                def image = docker.build("${IMAGE_NAME}:${IMAGE_TAG}")
+                                
+                                // 也创建latest标签
+                                sh "docker tag ${IMAGE_NAME}:${IMAGE_TAG} ${IMAGE_NAME}:latest"
+                            }
+                            
+                            echo "✅ Docker镜像构建完成: ${IMAGE_NAME}:${IMAGE_TAG}"
+                            
+                            // 验证镜像是否创建成功
+                            sh "docker images ${IMAGE_NAME}:${IMAGE_TAG}"
+                            
+                        } catch (Exception e) {
+                            echo "⚠️ Docker构建失败: ${e.getMessage()}"
+                            // 清理可能的中间状态
+                            sh 'docker system prune -f || true'
+                            throw e
+                        }
+                    }
                 }
             }
         }