add docker support via sbt-docker

Author: shuttie

build.sbt

@@ -1,6 +1,6 @@
 name := "s3mock"
 
-version := "0.2.3"
+version := "0.2.4"
 
 organization := "io.findify"
 
@@ -53,6 +53,22 @@ pomExtra := (
       </developer>
     </developers>)
 
+enablePlugins(DockerPlugin)
+assemblyJarName in assembly := "s3mock.jar"
+mainClass in assembly := Some("io.findify.s3mock.Main")
+test in assembly := {}
+
+dockerfile in docker := new Dockerfile {
+  from("openjdk:9.0.1-11-jre-slim")
+  expose(8001)
+  add(assembly.value, "/app/s3mock.jar")
+  entryPoint("java", "-Xmx128m", "-jar", "/app/s3mock.jar")
+}
+imageNames in docker := Seq(
+  ImageName(s"findify/s3mock:${version.value.replaceAll("\\+", "_")}"),
+  ImageName(s"findify/s3mock:latest")
+)
+
 /*enablePlugins(JavaAppPackaging)
 
 maintainer in Docker := "S3mock"

project/plugins.sbt

@@ -5,4 +5,5 @@ addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.8.2")
 addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "1.1")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.1")
 addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.4")
-addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.2.2")
+addSbtPlugin("se.marcuslonnberg" % "sbt-docker" % "1.4.1")
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.5")

src/main/scala/io/findify/s3mock/S3Mock.scala

@@ -61,6 +61,7 @@ class S3Mock(port:Int, provider:Provider)(implicit system:ActorSystem = ActorSys
       }
 
     bind = Await.result(http.bindAndHandle(route, "0.0.0.0", port), Duration.Inf)
+    logger.info(s"bound to 0.0.0.0:$port")
     bind
   }