build.sbt part 3 for Medium Post

build-2.sbt

val targetDockerJarPath = "/opt/spark/jars"

// For building the docker image
lazy val dockerSettings = Seq(
  imageNames in docker := Seq(
    ImageName(s"$domain/${name.value}:latest"),
    ImageName(s"$domain/${name.value}:${version.value}"),
  ),
  buildOptions in docker := BuildOptions(
    cache = false,
    removeIntermediateContainers = BuildOptions.Remove.Always,
    pullBaseImage = BuildOptions.Pull.Always
  ),
  dockerfile in docker := {
    // The assembly task generates a fat JAR file
    val artifact: File = assembly.value
    val artifactTargetPath = s"$targetDockerJarPath/$domain-${name.value}.jar"
      new Dockerfile {
        from(s"localhost:5000/spark-runner")
      }.add(artifact, artifactTargetPath)
  }
)