NewEnvoyControler creates a new envoy controller that binds to the supplied address when Run.

SetupEnvoy launches an envoy docker container that is configured to connect to the supplied ads address and expose the supplied portmaps.

SetupEnvoyController will create and run an EnvoyController with the supplied address as well as registering a Cleanup function to shutdown the EnvoyController.

SetupRequestLogger will launch an http server that binds to the supplied addresses, responds with the supplied body, and records every request it receives for later examination.

SetupServer will launch an http server that runs for the duration of the test, binds to the supplied addresses using the supplied handler.

EnvoyController runs a go control plane for envoy that tracks ACKS/NACKS for configuration updates.