build fails with docker buildkit enabled

[relrod]

Sorry, I don't have good reproducer steps for this and I unfortunately don't have time to debug further, but when following the guide to set up galaxy-ng (https://ansible.readthedocs.io/projects/galaxy-ng/en/latest/community/devstack/#oci-env) I found that I was unable to build until I disabled buildkit with export DOCKER_BUILDKIT=0

Possibly relevant:
docker/compose#8538
docker/compose#8449

I believe the issue is that buildkit tries to build in parallel but can't do that with images that depend on each other... but I haven't dug too much beyond that.

In any case exporting that env var let me work around the issue - it might be something worth considering doing in oci-env itself.