In order to use private repo, you need to create one in a system.

1- Login docker login 2- Tag docker tag <this_name> <to_this_name> 2- Push docker push repo_url/my-app:3.1`

registryDomain/imageName:tag

The full path of DockerHub images are:

Setting up a Private Registry

I will use the open-source Docker registry container.

Basic commands

Start your registry

docker run -d -p 5000:5000 --name registry registry:3

Pull (or build) some image from the hub

docker pull ubuntu

Tag the image so that it points to your registry

docker image tag ubuntu localhost:5000/myfirstimage

Push it

docker push localhost:5000/myfirstimage

Pull it back

docker pull localhost:5000/myfirstimage

Now stop your registry and remove all data

docker container stop registry && docker container rm -v registry

To mount a volume

-v /mnt/registry:/var/lib/registry

localhost:5000/v2/_catalog → check images