Domestic Docker Hub image service
DaoCloud provides the first Docker Hub mirroring service in China, and it is free.
vi /etc/sysconfig/docker
OPTIONS="--registry-mirror=http://aad0405c.m.daocloud.io"
The final result after modification is:
OPTIONS='--selinux-enabled --log-driver=journald --graph=/data/docker/images --registry-mirror=http://aad0405c.m.daocloud.io'
restart docker
Alibaba Cloud also has its own mirror in the internal network
https://********.mirror.aliyuncs.com\