Dockerfile

# ============================================================
# KnowEngine Dockerfile
# ============================================================
FROM eclipse-temurin:21-jdk-alpine

# 设置工作目录
WORKDIR /app

# 安装必要工具
RUN apk add --no-cache tzdata curl

# 设置时区
ENV TZ=Asia/Shanghai
RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

# 复制 Maven 构建的 JAR 文件
# 先构建: mvn clean package -DskipTests
COPY target/know-engine-1.0.0-SNAPSHOT.jar app.jar

# 暴露端口
EXPOSE 8009

# JVM 参数
ENV JAVA_OPTS="-Xms512m -Xmx1024m -XX:+UseG1GC -XX:+HeapDumpOnOutOfMemoryError"

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
  CMD curl -f http://localhost:8009/actuator/health || exit 1

# 启动应用
ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]