一、错误重现

error pulling image configuration: download failed after attempts=6: dial tcp 31.13.88.169:443: i/o timeout

在执行docker build构建镜像，拉取镜像时报错

或者直接docker pull镜像时报错

实质都是拉取镜像源超时报错，那么就是镜像源的问题

二、解决方法

1、配置镜像源

vim /etc/docker/daemon.json

输入以下内容

{
	"registry-mirrors":[
		"https://i1el1i0w.mirror.aliyuncs.com",
		"https://hub-mirror.c.163.com",
		"https://registry.aliyuncs.com",
		"https://registry.docker-cn.com",
		"https://docker.mirrors.ustc.edu.cn"
	]
}

或者直接使用tee命令添加（二选一即可）

sudo tee /etc/docker/daemon.json <<-'EOF'
{
	"registry-mirrors":[
		"https://i1el1i0w.mirror.aliyuncs.com",
		"https://hub-mirror.c.163.com",
		"https://registry.aliyuncs.com",
		"https://registry.docker-cn.com",
		"https://docker.mirrors.ustc.edu.cn"
	]
}
EOF

2、重启docker服务

重启守护进程

sudo systemctl daemon-reload

重启服务

sudo systemctl restart docker

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再次尝试成功了