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