在使用docker过程中，往往会用到镜像仓库，方便管理的同时也方便在其他环境下快速下载镜像，本文讲解如何将镜像传入docker官方仓库。操作系统以CentOS 8 为例讲解如何将自己的镜像上传到docker hub。

一、Docker 官网注册一个账号，新建仓库

二、制作镜像，保存修改后的容器镜像为例

# 本次不以docker build 为例
# docker ps -a
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
CONTAINER ID  IMAGE                                             COMMAND               CREATED        STATUS            PORTS                     NAMES
236cd97f7854  docker.io/oddrationale/docker-shadowsocks:latest  -s 0.0.0.0 -p 123...  4 seconds ago  Up 3 seconds ago  0.0.0.0:12345->12345/tcp  unruffled_hamilton

# 拷贝宿主的文件进容器/tmp目录
# docker cp /data/shadowsock/config.json 236cd97f7854:/tmp
# docker commit 236cd97f7854 shadowsock-feb
# docker images
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
REPOSITORY                                 TAG     IMAGE ID      CREATED       SIZE
localhost/shadowsock-feb                   latest  55c10922d371  18 hours ago  438 MB
docker.io/oddrationale/docker-shadowsocks  latest  4cbc49994ade  3 years ago   438 MB

三、镜像上传

# 重新打标签，镜像重命名使之与Docker Hub账号仓库匹配，格式： 用户名/仓库名
# docker tag 55c10922d371 skypipi/shadowsock
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.

# docker images
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
REPOSITORY                                 TAG     IMAGE ID      CREATED       SIZE
localhost/shadowsock-feb                   latest  55c10922d371  18 hours ago  438 MB
localhost/skypipi/shadowsock               latest  55c10922d371  18 hours ago  438 MB
docker.io/oddrationale/docker-shadowsocks  latest  4cbc49994ade  3 years ago   438 MB


# 指定 docker.io 地址，否则就登录到redhat官网了
# docker login docker.io
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
Username: skypipi
Password: 
Login Succeeded!

# docker push skypipi/shadowsock
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
Getting image source signatures
.......
Copying config 55c10922d3 done  
Writing manifest to image destination
Storing signatures

四、镜像下载

•  通过官网下载

• 通过命令下载

# docker pull skypipi/shadowsock:latest