docker: Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled (Client.Timeout exceeded while awaiting headers).

修改daemon.json，或在docker destop/settings/daemon里修改，添加镜像

 

参考该文：

Centos7 dockers下载镜像报错: Get https://registry-1.docker.io/v2/: net/http: request canceled