参考教程：https://docs.docker.com/engine/reference/commandline/diff/
环境
- virtual box 6.1
- centos 7.8
- docker 19.03
命令格式
docker diff CONTAINER
检查容器中哪些文件发生了变更。
命令选项
| 标记 | 描述 |
|---|---|
A |
增加文件或者文件夹 |
D |
删除的文件或者文件夹 |
C |
修改的文件或者文件夹 |
示例
查看容器文件变换
[root@master ~]# docker diff 1d
C /usr
C /usr/share
C /usr/share/nginx
C /usr/share/nginx/html
C /usr/share/nginx/html/index.html
C /run
A /run/nginx.pid
C /etc
C /etc/nginx
C /etc/nginx/conf.d
C /etc/nginx/conf.d/default.conf
C /root
A /root/.bash_history
C /var
C /var/cache
C /var/cache/nginx
A /var/cache/nginx/uwsgi_temp
A /var/cache/nginx/client_temp
A /var/cache/nginx/fastcgi_temp
A /var/cache/nginx/proxy_temp
A /var/cache/nginx/scgi_temp
总结
介绍了 diff 命令的使用，可以显示容器内文件的变换。