如何push一个docker镜像到DockerHub上

在DockerHub上创建账号：https://hub.docker.com/

这里我的账号是firewarm

本地下载镜像（这里拿alpine做示例）,并为镜像打tag

[root@host-30 ~]# docker pull alpine:3.4

[root@host-30 ~]# docker tag alpine:3.4 firewarm/alpine:3.4

登录到DockerHub上

[root@host-30 ~]# docker login

# 输入用户名和密码

push镜像到DockerHub上

[root@host-30 ~]# docker push firewarm/alpine:3.4

The push refers to a repository [docker.io/firewarm/alpine]

4fe15f8d0ae6: Pushed

3.4: digest: sha256:dc89ce8401da81f24f7ba3f0ab2914ed9013608bdba0b7e7e5d964817067dc06 size: 528

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