报错原文

Using default tag: latest
Trying to pull repository docker.io/library/mysql ... 
Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

解决方法

1. 换源

1.修改/etc/docker/daemon.json文件.

vi /etc/docker/daemon.json

{
"registry-mirrors": [
"https://0dj0t5fb.mirror.aliyuncs.com",
"https://docker.mirrors.ustc.edu.cn",
"https://6kx4zyno.mirror.aliyuncs.com",
"https://registry.docker-cn.com"
]
}

2. 重启：

sudo systemctl restart docker.service
sudo systemctl status docker

2. 修改DNS服务配置

1. 编辑DNS配置

vi /etc/resolv.conf

2. 添加如下内容

nameserver 114.114.114.114
nameserver 8.8.8.8