Types of fields in ContainerConfiguration

[mausch]

In https://github.com/almoehi/reactive-docker/blob/master/src/main/scala/com/kolor/docker/api/entities/ContainerConfiguration.scala shouldn't image be a String instead of an Option[String], since it's a required value?

Also I think volumes should be just a Map[String, DockerVolume], same thing for exposedPorts, env and probably others.

[almoehi]

I think wrapping everything in Option[X] happened unintentionally and probably is mostly related to json deserializers where readNullable returns an Option[X]. Of course this could be changed to to make volumes a Map.empty
Changing Option[X] for map-like properties would cause existing code to break and require some small refactorings for current users.
Any comments from someone else ?

Regarding the image property: This is true for docker containers. However, ContainerConfiguration is shared by ContainerInfo and DockerImageInfo where image(and lots of other properties) can be empty or missing. (at least this was the case during early development which used 0.x docker versions - maybe it changed in the meantime ?)

[mausch]

Not sure about ContainerInfo / DockerImageInfo (though I can't imagine any scenario where the image information wouldn't be present), but even so, if the image is required in one context and not required in another context, then there should be different types modeling each case.