Continuous Delivery with Docker and Jenkins

Pulling the image

To demonstrate how the registry works, we can remove the image locally and retrieve it from the registry:

$ docker rmi ubuntu_with_python leszko/ubuntu_with_python:1

We can see that the image has been removed using the docker images command. Then, let's retrieve the image back from the registry:

$ docker pull leszko/ubuntu_with_python:1

If you use the free Docker Hub account, you may need to change the ubuntu_with_python repository to public before pulling it.

We can confirm the image is back with the docker images command.

When we have the registry configured and understand how it works, we can see how to use it inside the Continuous Delivery pipeline and build the acceptance testing stage.