Yo! This is a simple server that returns different status codes.
  /                            This page
  /<status-code>               Return status code and its name as body
  /db-now                      Return database time (only MySQL supported)
  /ping                        Return a simple "PONG" response
  /help                        This page
  /random                      Return a random status code
  /redis                       Ping a Redis server
  /sleep                       Sleep for ?t milliseconds
  /health.proto                grpc.health.v1.Health service protobuf definition
  /grpc.health.v1.Health/      gRPC grpc.health.v1.Health service
  /hello.Hello/                gRPC hello.Hello service
  /hello.proto                 hello.Hello service protobuf definition