docker 07 (docker private warehouse)

1. Private warehouse

Docker's official Dockerhub (https://hub.docker.com) is a warehouse used to manage public images. We can pull images from it to the local area, or we can push our own images up there. However, sometimes our server cannot access the Internet, or you do not want to put your image on the public network, then we need to build our own private warehouse to store and manage our own image.