:seedling: adding extraEnvVars to ccm

[batistein]

What this PR does / why we need it: Adding envVars to ccm

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged): Fixes #

Special notes for your reviewer:

Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

TODOs:

• [x] squashed commits
• [ ] includes documentation
• [ ] adds unit tests