I'm not familiar with third-party solutions in this space, but I don't
believe there's a better answer today for reverse-tunneling with gRPC
alone. The tracking issue for the work is here:
https://github.com/grpc/grpc/issues/14101. You can manually wire this sort
of thing up using BiDi
Release v1.49.0 is now available on Maven Central.
https://github.com/grpc/grpc-java/releases/tag/v1.49.0
*New Features*
- okhttp: Add `OkHttpServerBuilder`. The server can be used directly,
but is not yet available via `ServerBuilder.forPort()` and
`Grpc.newServerBuilderForPort()`.