Warning when Docker/publish a protobuf/scala project

[johanandren]

I get this, not sure it is a problem but users will also not be sure if it is a problem or not.

[warn] /Users/johan/Code/blablabla/target/scala-2.13/akka-grpc/main/kalix/DirectSource.scala:18:63: Variable MY_ENV_NAME undefined in comment for class DirectSource in class DirectSource
[warn]   *   Can be a template referencing an environment variable "${MY_ENV_NAME}" set for the service at deploy
[warn]                                                               ^
[warn] one warning found
[info] Main Scala API documentation successful.
[warn] [1] There are no exposed ports for your docker image
[warn]  Configure the `dockerExposedPorts` or `dockerExposedUdpPorts` setting. E.g.
[warn]
[warn]  // standard tcp ports
[warn]  dockerExposedPorts ++= Seq(9000, 9001)
[warn]
[warn]  // for udp ports
[warn]  dockerExposedUdpPorts += 4444
[warn]