ubuntu - docker登录错误: no such host

Question

从 registry 启动私有(private) docker 注册表后docker 镜像，登录注册表

docker login http://docker.mydomain.com:5000

输入姓名、密码和电子邮件后导致以下错误:

FATA[0007] Error response from daemon: v1 ping attempt failed with error: Get https://docker.mydomain.com:5000/v1/_ping: dial tcp: lookup docker.mydomain.com: no such host. If this private registry supports only HTTP or HTTPS with an unknown CA certificate, please add `--insecure-registry docker.mydomain.com:5000` to the daemon's arguments. In the case of HTTPS, if you have access to the registry's CA certificate, no need for the flag; simply place the CA certificate at /etc/docker/certs.d/docker.mydomain.com:5000/ca.crt 

尝试不安全的登录也不起作用:

docker login --insecure-registry http://docker.mydomain.com:5000

有什么建议么？谢谢!

nmap 本地主机

Nmap scan report for localhost (127.0.0.1)
Host is up (0.000010s latency).
Not shown: 997 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
80/tcp   open  http
5000/tcp open  upnp

来访http://docker.mydomain.com:5000在浏览器上:

true

来访http://docker.mydomain.com:5000/v1/_ping在浏览器上:

{}

Answer 1

你误会了--insecure-registry flag - 这是给你的守护进程而不是你的客户端。如错误消息中所述:

please add --insecure-registry docker.mydomain.com:5000 to the daemon's arguments.

如果您想使用不安全的私有(private)注册表，您需要将其添加到您的守护程序并重新启动它。否则，只需将其放在使用 https 的 Web 服务器后面并代理它。