Docker logs命令具有什么功能呢?

docker logs功能:
    获取容器日志信息

docker logs命令语法

docker logs [OPTIONS] CONTAINER

OPTIONS说明
   -f:跟踪日志输出
   --since:显示某个开始时间的所有日志
   -t:显示时间戳
   --tail:列出最新N条容器日志

[root@node0 tmp]# docker logs --tail=8 837
/docker-entrypoint.sh: Configuration complete; ready for start up
2023/01/06 09:28:51 [notice] 1#1: using the "epoll" event method
2023/01/06 09:28:51 [notice] 1#1: nginx/1.21.6
2023/01/06 09:28:51 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6) 
2023/01/06 09:28:51 [notice] 1#1: OS: Linux 3.10.0-1160.el7.x86_64
2023/01/06 09:28:51 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2023/01/06 09:28:51 [notice] 1#1: start worker processes
2023/01/06 09:28:51 [notice] 1#1: start worker process 23

//实时输出日志
[root@node0 tmp]# docker logs -f 837
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh