A registry is a storage and content delivery system, holding named Docker images, available in different tagged versions. Example: the image distribution/registry , with tags 2.0 and 2.1 . Users interact with a registry by using docker push and pull commands.

What is Docker registry?

A Docker registry is a storage and distribution system for named Docker images. ... The registry allows Docker users to pull images locally, as well as push new images to the registry (given adequate access permissions when applicable).

What is the purpose of Docker registry?

Docker Registry is a standard way to store and distribute Docker images. The Registry is an open source-based repository under the permissive Apache license. Docker Registry also helps improve access control and security of the Docker images stored in its repository.