Detailed structure of the mirror Docker

First, the relationship between the mirror and the container warehouse

Second, the mirror structure

镜像的结构：
${register_name}/${reposttory_name}/${image_name}:${tag_name}

例如：
docker.io/library/apline:3.10.1

#docker.io
远程仓库地址
#library
仓库分类的名称
#apline
镜像名称
#3.10.1
版本号

Three, docker hub official website landing