镜像上传、存入、存出
首先得去https://www.docker.com/ 官网注册一个账号
1.上传镜像
[root@localhost docker]# docker tag test:latest dy1999/test:latest
[root@localhost docker]# docker login 输入刚才注册的用户名和密码
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: dy1999
Password:
Login Succeeded
[root@localhost docker]# docker push dy1999/test:latest 其中dy1999为我刚注册的用户名 test为docker网站上的仓库名 没有会自动创建 latest为标签
The push refers to a repository [docker.io/dy1999/test]
a473a4bafa40: Pushed
a8de0e025d94: Pushed
a5e66470b281: Pushed
ac7299292f8b: Pushed
e1a9a6284d0d: Pushed
fccbfa2912f0: Pushed
latest: digest: sha256:3545bfcb3fd004ce0c3489a5f10dbbf92187ea2cb89c0aaf6e5c3946981b263f size: 1564
2.存出
https://openvz.org/Download/template/precreated 下载ubuntu-14.04-x86_64-minimal.tar.gz
cd /var/opt/docker 上传文件 ubuntu-14.04-x86_64-minimal.tar.gz
[root@localhost docker]# sudo cat ubuntu-14.04-x86_64-minimal.tar.gz |docker import - ubuntu:14.04
会输出sha256:cd7ac3dace3edc17b80b933a2c43976be0068c83fb749d8fc7a559a04f43dcdf
[root@localhost docker]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu 14.04 cd7ac3dace3e About a minute ago 215 MB
test latest 131466eb2ab0 23 minutes ago 113 MB
docker.io/ubuntu latest c9d990395902 4 days ago 113 MB
docker.io/centos latest e934aafc2206 10 days ago 199 MB
docker.io/learn/tutorial latest a7876479f1aa 5 years ago 128 MB
存出本地的镜像为文件ubuntu_14.04.tar
[root@localhost docker]# docker save -o ubuntu_14.04.tar ubuntu:14.04
会 在/var/opt/docker 创建ubuntu_14.04.tar文件
3.存入
docker load --input ubuntu_14.04.tar 载入镜像
或者docker load < ubuntu_14.04.tar
[root@localhost docker]# docker load < ubuntu_14.04.tar
输出Loaded image: ubuntu:14.04