FROM openjdk:21-jdk-slim

# 创建缓存目录并设置权限
RUN mkdir -p /minecraft/cache && chmod -R 777 /minecraft/cache

# 设置工作目录
WORKDIR /minecraft

# 复制 Paper jar 文件到工作目录并设置权限
COPY paper.jar /minecraft/paper.jar
COPY 1.21.jar /minecraft/1.21.jar
RUN chmod 777 /minecraft/paper.jar

# 暴露 Minecraft 服务器默认端口
EXPOSE 25565
COPY server.properties /minecraft/server.properties
COPY eula.txt /minecraft/eula.txt
RUN chmod -R 777 /minecraft
# 启动命令
#CMD ["java", "-Xms1G", "-Xmx2G", "-jar", "paper.jar", "nogui"]
CMD ["java", "-Xms4G", "-Xmx8G", "-XX:+UseG1GC", "-XX:MaxGCPauseMillis=50", "-XX:+UnlockExperimentalVMOptions", "-XX:+ParallelRefProcEnabled", "-XX:+AlwaysPreTouch", "-XX:G1HeapWastePercent=5", "-XX:G1MixedGCCountTarget=4", "-XX:G1MixedGCLiveThresholdPercent=90", "-XX:InitiatingHeapOccupancyPercent=15", "-XX:G1NewSizePercent=30", "-XX:G1MaxNewSizePercent=40", "-XX:G1HeapRegionSize=16M", "-jar", "1.21.jar", "nogui"]