Chapter 1. Using Base Images
To use container images provided by Red Hat as base images in your own Dockerfile, add the following line to it:
FROM registry.access.redhat.com/rhscl/python-35-rhel7
Working with Dockerfiles is covered in the Red Hat Enterprise Linux Atomic Host 7 Getting Started with Containers document. Detailed information on Dockerfiles can be found in the Dockerfile reference document.

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