添加日志配置文件

在 docker-compose.yml 的同级目录下，创建一个 zookeeper-log4j.properties 文件，用于配置 Zookeeper 的日志管理：

zookeeper-log4j.properties

zookeeper.root.logger=INFO, CONSOLE, ROLLINGFILE
zookeeper.console.threshold=INFO
log4j.rootLogger=${zookeeper.root.logger}

# Console appender
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=${zookeeper.console.threshold}
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} [%t] %-5p %c{2} (%F:%L) - %m%n

# Rolling File Appender
log4j.appender.ROLLINGFILE=org.apache.log4j.RollingFileAppender
log4j.appender.ROLLINGFILE.File=/logs/zookeeper.log
log4j.appender.ROLLINGFILE.MaxFileSize=10MB    # 每个日志文件最大大小
log4j.appender.ROLLINGFILE.MaxBackupIndex=5   # 保留的日志文件个数
log4j.appender.ROLLINGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.ROLLINGFILE.layout.ConversionPattern=%d{ISO8601} [%t] %-5p %c{2} (%F:%L) - %m%n