新增加私服构建的dockerfile

Dockerfile/java/新的/email_Dockerfile

@@ -0,0 +1,45 @@
+# ---- Stage 1: Build with Maven ----
+FROM maven:3.8.8-eclipse-temurin-8 AS builder
+
+WORKDIR /build
+
+# 先仅复制 pom.xml 用于依赖缓存
+COPY application/pom.xml application/
+COPY domain/pom.xml domain/
+COPY infrastructure-cn/pom.xml infrastructure-cn/
+COPY infrastructure-us/pom.xml infrastructure-us/
+COPY infrastructure/pom.xml infrastructure/
+COPY interface/pom.xml interface/
+COPY start/pom.xml start/
+COPY pom.xml .
+
+# 预下载所有依赖，pom 不变就不会重新下载
+RUN mvn -B dependency:go-offline
+
+# 再复制所有源码
+COPY . .
+
+# 开始 Maven 构建，配置变量可变，us 或 cn, 默认为 us
+ARG MAVEN_BUILD_PROFILE=us
+RUN mvn clean package -Dmaven.test.skip=true -P${MAVEN_BUILD_PROFILE}
+
+# ---- Stage 2: Runtime ----
+FROM mirror.ccs.tencentyun.com/library/openjdk:8-jdk AS runtime
+
+# 创建应用工作目录
+WORKDIR /app
+
+ENV LANG=C.UTF-8 \
+    TZ=Asia/Shanghai \
+    JAVA_OPTS=""
+
+# 从构建阶段复制 JAR
+COPY --from=builder /build/start/target/start-0.0.1-SNAPSHOT.jar /app/flymoon-email.jar
+
+EXPOSE 4997 4998
+
+# 运行时配置可变
+ARG RUN_PROFILE=sit-us
+ENV SPRING_PROFILES_ACTIVE=${RUN_PROFILE}
+
+ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar /app/flymoon-email.jar --spring.profiles.active=${SPRING_PROFILES_ACTIVE}"]