I noticed a bug when using --experimental_enable_multiple_api_configs flag and when using multiple configurations. The definitions are stored under /etc/nginx/endpoints/ directory with a namespaced UUID with service-version as parameter.

This works as long as the various services has unique versions. But for me it does not work since the versions on GCP endpoints is usually date with a revision number. It will not be absolutely unique.

I suggest use service + version as the hash in the UUID generation. This will be unique when using multiple services.