Harbor question with insecure HTTP

[oomgomgxx]

Hello, I'm new to Buildkit. Currently trying to build and push the image to Harbor on the intranet through Buildkit. The Buildkit image I used is "moby/buildkit:master-rootless", and Harbor does not use HTTPS. The problem now is that Buildkit uses HTTPS for image push by default, and I have not found how to use HTTP push. And I tried to mount buildkit.toml (configuration registry.http=true) to "~/.local/share/buildkit", but found that it had no effect. How should I solve this problem?