Create insecure and private docker resistry

Pre-requirements on the host and clients:

Installed Docker and Docker-compose

Host

Create a folder for Docker registry

$ mkdir docker-registry;cd $_;mkdir data

Create a  docker-compose.yml for docker-compose.

registry:

  restart: always

  image: registry:2

  ports:

    - 5000:5000

  environment:

    REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY: /data

  volumes:

    - ./data:/data

Get any image from the hub and tag it to point to your registry:

$ docker pull ubuntu && docker tag ubuntu localhost:5000/ubuntu

Then, push it to your registry:

$ docker push localhost:5000/ubuntu

Clients

Because the above setting is an insecure and private registry. You need to add --insecure-registry to /etc/default/docker as below.

DOCKER_OPTS="$DOCKER_OPTS --insecure-registry=HOST:5000"

Afterward, you can pull the image from host server by running the below command

$ docker pull HOST:5000/ubuntu