We have been discussing in T368033: Design a suitable DAG deployment method what sort of system we might use for DAG management for Airflow under Kubernetes.
It looks like we may want to use a git-sync sidecar method, so for this we would need a container image with this functionality.
The upstream git-sync project is here: https://github.com/kubernetes/git-sync
We may want to use this project and build a version with blubber/kokkuri
Bear in mind that we may find other uses for git-sync, such as T347421: [NEEDS GROOMING] schema services should be moved to k8s.