龙芯Fedora21平台上传docker镜像到docker hub

http://ask.loongnix.org/?/article/87

 申请docker hub 帐号
 
打开 docker hub官网：https://hub.docker.com 进行注册
 

 
邮件激活后登录docker hub 点击 Create --> Create repository 创建一个仓库。
 

 

仓库名称：huangxg20171010/fedora21-base
huangxg20171010是帐号，fedora21-base在docker hub上是Repository，可以理解为镜像名称。
 
在本机登录hub帐号：

# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: huangxg20171010
Password: 
Login Succeeded

 
将本机已经存在的镜像名称做格式化，保证和仓库名称：huangxg20171010/fedora21-base 一致，操作如下：

# docker images
REPOSITORY          TAG     IMAGE ID        CREATED         SIZE
fedora21-base       21      65e35642a4da    12 days ago     206.9 MB

# docker tag fedora21-base:21 huangxg20171010/fedora21-base:20170726
# docker images
REPOSITORY                      TAG         IMAGE ID        CREATED         SIZE
fedora21-base                   21          65e35642a4da    12 days ago     206.9 MB
huangxg20171010/fedora21-base   20170726    65e35642a4da    12 days ago     206.9 MB

使用 docker push 将镜像上传至hub上，操作如下：

# docker push huangxg20171010/fedora21-base:20170726
The push refers to a repository [docker.io/huangxg20171010/fedora21-base]
409f8b08daf6: Layer already exists 
20170726: digest: sha256:6ec30e213ad3df532c8cad07985c7a522c08e3b1ed7ac491e60156b512484b63 size: 528

 
上传一个tag为latest的镜像，操作如下：

# docker tag fedora21-base:21 huangxg20171010/fedora21-base
# docker images
REPOSITORY                      TAG         IMAGE ID        CREATED         SIZE
fedora21-base                   21          65e35642a4da    12 days ago     206.9 MB
huangxg20171010/fedora21-base   20170726    65e35642a4da    12 days ago     206.9 MB
huangxg20171010/fedora21-base   latest      65e35642a4da    12 days ago     206.9 MB

# docker push huangxg20171010/fedora21-base
The push refers to a repository [docker.io/huangxg20171010/fedora21-base]
409f8b08daf6: Layer already exists 
latest: digest: sha256:6ec30e213ad3df532c8cad07985c7a522c08e3b1ed7ac491e60156b512484b63 size: 528

 
验证是否可以正常pull镜像，操作如下：

# docker rmi huangxg20171010/fedora21-base
# docker images
REPOSITORY      TAG     IMAGE ID        CREATED         SIZE
fedora21-base   21      65e35642a4da    12 days ago     206.9 MB
# docker pull huangxg20171010/fedora21-base
Trying to pull repository docker.io/huangxg20171010/fedora21-base ... 
sha256:6ec30e213ad3df532c8cad07985c7a522c08e3b1ed7ac491e60156b512484b63: Pulling from docker.io/huangxg20171010/fedora21-base

Digest: sha256:6ec30e213ad3df532c8cad07985c7a522c08e3b1ed7ac491e60156b512484b63
Status: Downloaded newer image for docker.io/huangxg20171010/fedora21-base

# docker images
REPOSITORY                      TAG         IMAGE ID        CREATED         SIZE
fedora21-base                   21          65e35642a4da    12 days ago     206.9 MB
huangxg20171010/fedora21-base   latest      65e35642a4da    12 days ago     206.9 MB

 
通过docker hub 官网查看验证是否上传成功，操作如下：

1. 打开 docker hub官网：https://hub.docker.com 登录。 
2. 如下图所示，点击“DETAILS”。

      3. 如下图所示，点击“Tags”，表示两个镜像提交成功，其中一个镜像的tag是20170726,另一个镜像的tag是latest
 

总 结
 
按照本文方法，可以将做好的镜像上传至docker hub 上，便于其他宿主机下载使用。