docker access and push mirror

1.Docker Hub

　　　https://registry.hub.docker.com/

2. docker search [OPTIONS] Mirror

　　　docker search ubuntu (once only to return 25)　　

　　　

　　　　docker search -s5 ubuntu (return of more than 5 stars)

3. Download image

　　　　docker pull name:tag

　　　　

4. accelerate downloads

　　　

The image uploaded

　　　　docker push mirror