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There are three possible methods for running a Docker container:

• The container exists on the 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

# docker run hello-world

will download and run the hello-world container from 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 containers into your local Docker environment.