写入可用镜像源

sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": [

"https://docker.1panel.live/",
"https://docker.1ms.run",
"https://dockerproxy.link",
"https://docker.m.daocloud.io"

]
}
EOF

重启 Docker 生效

sudo systemctl daemon-reload
sudo systemctl restart docker

测试拉取

docker pull nginx