常见问题1
Error response from daemon: 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

vim  /etc/docker/daemon.json

{
"registry-mirrors": ["https://registry.cn-shanghai.aliyuncs.com","https://7bezldxe.mirror.aliyuncs.com/","https://docker.211678.top",
            "https://docker.1panel.live",
            "https://hub.rat.dev",
            "https://docker.m.daocloud.io",
            "https://do.nark.eu.org",
            "https://dockerpull.com",
            "https://dockerproxy.cn",
            "https://docker.awsl9527.cn"],
"insecure-registries": ["192.168.32.14"],
"storage-driver": "overlay2",
"storage-opts": ["overlay2.override_kernel_check=true"],
"log-driver": "json-file",
"exec-opts": ["native.cgroupdriver=systemd"],
"log-opts": {
    "max-size": "100m",
    "max-file": "3"
    }
}

systemctl daemon-reload
systemctl restart  docker