Use openSUSE Registry in production Dockerfile

[AndrewKvalheim]

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the upstream master branch.
• The tests pass locally with my changes.
• I have added tests that prove my fix is effective or that my feature works (if appropriate).
• I have added necessary documentation (if appropriate).

Short description of what this resolves

As of 6648082 the Docker base image is hosted in the openSUSE Registry. The development Dockerfile was updated to use this registry—

osem/Dockerfile

Line 1 in 3c2a082

FROM registry.opensuse.org/opensuse/infrastructure/osem/containers/osem/base:latest

—but the production Dockerfile still uses Docker Hub by default:

osem/Dockerfile.production

Line 1 in 3c2a082

FROM opensuse/infrastructure/osem/containers/osem/base

This causes builds to fail with:

pull access denied for opensuse/infrastructure/osem/containers/osem/base, repository does not exist or may require 'docker login'

Changes proposed in this pull request

Use the openSUSE Registry in the production Dockerfile.