mkdir -p /etc/docker

tee /etc/docker/daemon.json <<-'EOF'
{"registry-mirrors":["https://docker.mirrors.ustc.edu.cn",
"https://dockerhub.azk8s.cn",
"http://f1361db2.m.daocloud.io",
"https://reg-mirror.qiniu.com",
"https://hub-mirror.c.163.com",
"https://mirror.ccs.tencentyun.com"]}
EOF

systemctl daemon-reload
systemctl restart docker docker info