[1.2.2] docker:publishLocal only succeeds with JavaAppPackaging plugin but not with DockerPlugin

[el-dom]

Expected behaviour

sbt docker:publishLocal should work with DockerPlugin

Actual behaviour

sbt docker:publishLocal only works with JavaAppPackaging

Information

I've started a new project on sbt 1.0.1 (used sbt new sbt/scala-seed.g8 for setup) and added sbt-native-packager 1.2.2 as a plugin. Then i tried to create a docker image out of it using the DockerPlugin like described here.

build.sbt looks like this

lazy val commonSettings = List(
  organization := "de.test",
  scalaVersion := "2.12.3",
  version := "0.1.0-SNAPSHOT"
)

lazy val notifier = (project in file("modules/notifier")).settings(
  commonSettings,
  name := "abandonedcartnotifier",
  libraryDependencies ++= Seq(
    scalaTest % Test,
    akkaHttp,
    circe
  ),
  cancelable := true,
  fork in run := true
)
.settings(dockerSettings(9000): _*)
.enablePlugins(DockerPlugin)

lazy val migrations = (project in file("modules/migrations"))
  .settings(
    commonSettings,
  name := "migrations",
  libraryDependencies ++= Seq(
    flyway,
    postgresJdbc
  )
)

def dockerSettings(port: Int) = {
  Seq(
    dockerBaseImage := s"${sys.props.getOrElse("baseimagetag", default = "")}",
    dockerRepository := None,
    version in Docker := "current-build",
    dockerExposedPorts := Seq(port),
    dockerCommands ++= Seq(Cmd("USER", "daemon"))
  )
}

Trying to publish it with sbt -Dbaseimagetag="test/base:20170802-111029-9-b694b9" docker:publishLocal the build however fails everytime because of a missing opt folder

2:00:44 [info] Removing intermediate container 2c942763c2d9
22:00:44 [info] Step 4 : ADD opt /opt
22:00:44 [error] lstat opt: no such file or directory
22:00:44 [error] java.lang.RuntimeException: Nonzero exit value: 1
22:00:44 [error] 	at com.typesafe.sbt.packager.docker.DockerPlugin$.publishLocalDocker(DockerPlugin.scala:321)
22:00:44 [error] 	at com.typesafe.sbt.packager.docker.DockerPlugin$.$anonfun$projectSettings$24(DockerPlugin.scala:117)
22:00:44 [error] 	at com.typesafe.sbt.packager.docker.DockerPlugin$.$anonfun$projectSettings$24$adapted(DockerPlugin.scala:115)
22:00:44 [error] 	at scala.Function1.$anonfun$compose$1(Function1.scala:44)
22:00:44 [error] 	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:42)
22:00:44 [error] 	at sbt.std.Transform$$anon$4.work(System.scala:64)
22:00:44 [error] 	at sbt.Execute.$anonfun$submit$2(Execute.scala:257)
22:00:44 [error] 	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
22:00:44 [error] 	at sbt.Execute.work(Execute.scala:266)
22:00:44 [error] 	at sbt.Execute.$anonfun$submit$1(Execute.scala:257)
22:00:44 [error] 	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:167)
22:00:44 [error] 	at sbt.CompletionService$$anon$2.call(CompletionService.scala:32)
22:00:44 [error] 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
22:00:44 [error] 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
22:00:44 [error] 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
22:00:44 [error] 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
22:00:44 [error] 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
22:00:44 [error] 	at java.lang.Thread.run(Thread.java:748)
22:00:44 [error] (notifier/docker:publishLocal) Nonzero exit value: 1

Changing .enablePlugins(DockerPlugin) in build.sbt to .enablePlugins(JavaAppPackaging) creates the docker image successfully.

Am i doing something wrong?

[muuki88]

Nope ;)

This is the intended behaviour as documented in the Readme.md and in the core concepts documentation

Separation of concerns of the two plugin kinds

• format plugins define how a package is created
• archetype plugins define what a package should contain