Zixi Software Containers

There are three possible methods for running a Docker container:

• The container exists on the http://hub.docker.com registry.

• The container exists on a private registry that you have access to.

• You have built or imported the container into your local Docker environment.

For instance, the command

will download and run the hello-world container from http://hub.docker.com .  This is a good way to validate that your Docker environment is set up properly.

For Zixi software we will use the last method, which is building or importing images into your local Docker environment.  In terms of terminology, the Docker image is a read-only immutable template that defines how a container will be realized.  A Docker container is a runtime instance of a Docker image that gets created when the docker run command is executed.