修改镜像源

tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": [
    "https://docker.rainbond.cc",
    "https://docker.hpcloud.cloud",
    "https://docker.m.daocloud.io",
    "https://docker.unsee.tech",
    "https://docker.1panel.live",
    "http://mirrors.ustc.edu.cn",
    "https://docker.chenby.cn",
    "http://mirror.azure.cn",
    "https://dockerpull.org",
    "https://dockerhub.icu",
    "https://hub.rat.dev",
    "https://proxy.1panel.live",
    "https://docker.1panel.top",
    "https://docker.m.daocloud.io",
    "https://docker.1ms.run",
    "https://docker.ketches.cn"
  ]
}
EOF

刷新镜像源

systemctl daemon-reload

重启 Doker

systemctl restart docker

注意：更换镜像源后，search 命令依旧不好使，想要测试直接 docker pull nginx