DevOps: Puppet, Docker, and Kubernetes

Importing an image

To get a local copy of the image, we either need to pull it from the accessible registry or import it from the already exported image, as we saw in the earlier recipe. Using the docker import command, we import an exported image.

Getting ready

You need an accessible exported Docker image.

How to do it…

1. To import an image, we can use following syntax:

   $ docker import URL|- [REPOSITORY[:TAG]]
   

   Here's an example using the preceding syntax:

   $ cat fedora-latest.tar | docker import - fedora:latest
   

   Alternatively, you can consider the following example:

   $ docker import http://example.com/example.tar example/image
   

The preceding example will first create an empty filesystem and then import the contents.

See also

• Look at the help option of docker ...