下载docker后,当需要push镜像到公司仓库或者私有仓库时,需要先login.
1. 登录时,出现了
hadoop@slave3:/etc/docker$ docker login xxxxx
Username: dingheng
Password:
Error response from daemon: Get https:/xxxxx/: dial tcp: lookup xxxxx on 8.8.8.8:53: no such host
2. 这一看就属于DNS问题,因此需要找到linux环境下的/etc/resolv.conf
vim /etc/resolv.conf
这个nameserver 8.8.8.8出现很怪.google求之。
Editing the DNS nameserver in /etc/resolv.conf file helped me.
Change your existing nameserver to google nameserver i.e., x.x.x.x to 8.8.8.8
因此直接注释改行:
3. 重启docker。
service docker restart
4. 再次login,成功。
hadoop@slave3:~$ ^C
hadoop@slave3:~$ docker login xxxxx
Username: dingheng
Password:
WARNING! Your password will be stored unencrypted in /home/hadoop/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store
Login Succeeded
hadoop@slave3:~$ docker logout