【Docker】命令 diff

参考教程：https://docs.docker.com/engine/reference/commandline/diff/

环境

1. virtual box 6.1
2. centos 7.8
3. 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。