The concept of "mid-stream" exists in CPaaS. This allows the automated pull of upstream sources into downstream repos. The downstream repos may then be modified in an automated way prior to build. This automation can be setting version strings, adding necessary build artifacts (eg. files needed in clair's repo), etc.
PROJQUAY-1486 As a release engineer, I want automated tooling both upstream and down, so that releases may happen at-will.