Changing Scalatra Port - scala

Question

This sounds basic, but its actually cost me a whole day: I want to change to change the port that scalatra runs on, in development. I started with the hello world g8 template, and have been building from there.
Here's what I've tried so far:
Changing the port in build.scala, ala documentation:
http://www.scalatra.org/guides/deployment/configuration.html
This doesn't compile, because port is undefined.
Changing the port in build.scala, ala these two examples:
https: gist.github.com dozed 58af6cfbfe721a562a48
https://github.com/JamesEarlDouglas/xsbt-web-plugin/blob/master/src/sbt-test/web/servlet/project/Build.scala
Same problem: port is undefined
Redefining the entry point, ala
http: www.scalatra.org guides deployment standalone.html
Still runs on port 8080
Changing init params in bootstrap, ala
http: www.scalatra.org guides deployment configuration.html
Still runs on port 8080
Any help appreciated. I can't post more than 2 links for some reason, so replace spaces with forward slashes to follow the urls.
Here's my build.scala in case it helps.
import sbt._
import Keys._
import org.scalatra.sbt._
import org.scalatra.sbt.PluginKeys._
import com.mojolly.scalate.ScalatePlugin._
import ScalateKeys._
import com.earldouglas.xsbtwebplugin._
import WebPlugin._
object YesManBuild extends Build {
val Organization = "com.prezi"
val Name = "Yes Man"
val Version = "0.1.0-SNAPSHOT"
val ScalaVersion = "2.10.2"
val ScalatraVersion = "2.2.1"
//def Conf = config("container")
lazy val project = Project (
"yes-man",
file("."),
settings = Defaults.defaultSettings ++ ScalatraPlugin.scalatraWithJRebel ++ scalateSettings ++ Seq(
//port in Conf := 8081,
mainClass := Some("com.prezi.eureka.JettyLauncher.main"),
organization := Organization,
name := Name,
version := Version,
scalaVersion := ScalaVersion,
resolvers += Classpaths.typesafeReleases,
libraryDependencies ++= Seq(
"org.slf4j" % "slf4j-log4j12" % "1.7.5",
"com.netflix.eureka" % "eureka-client" % "1.1.97",
"com.netflix.ribbon" % "ribbon-httpclient" % "0.1.10",
"com.netflix.ribbon" % "ribbon-eureka" % "0.1.11",
"org.scalatra" %% "scalatra" % ScalatraVersion,
"org.scalatra" %% "scalatra-scalate" % ScalatraVersion,
"org.scalatra" %% "scalatra-specs2" % ScalatraVersion % "test",
"ch.qos.logback" % "logback-classic" % "1.0.6" % "runtime",
"org.eclipse.jetty" % "jetty-webapp" % "8.1.8.v20121106" % "container",
"org.eclipse.jetty.orbit" % "javax.servlet" % "3.0.0.v201112011016" % "container;provided;test" artifacts (Artifact("javax.servlet", "jar", "jar")),
"org.eclipse.jetty.aggregate" % "jetty-all" % "9.0.4.v20130625"
),
scalateTemplateConfig in Compile <<= (sourceDirectory in Compile){ base =>
Seq(
TemplateConfig(
base / "webapp" / "WEB-INF" / "templates",
Seq.empty, /* default imports should be added here */
Seq(
Binding("context", "_root_.org.scalatra.scalate.ScalatraRenderContext", importMembers = true, isImplicit = true)
), /* add extra bindings here */
Some("templates")
)
)
}
)
)
}
Thanks guys,
~Erik

Answer 1

Update 23.01.2016: scalatra-sbt uses xsbt-web-plugin 2.0.4 and a few settings changed. You can find the xsbt-web-plugin docs here (related note: integrations for xsbt-web-plugin, sbt-web, docker and standalone builds can be found in https://github.com/scalatra/scalatra-in-action, see chapter09-* directories).
For a Scalatra app this means:
use jetty:start, jetty:stop instead container:start, container:stop
enable JettyPlugin
use new keys, e.g. containerPort in Jetty := 8090, target in webappPrepare, sourceDirectory in webappPrepare
only .scala based SBT build definition: use the correct imports to import the plugin and setting keys
A .sbt build definition:
organization := "org.foo"
name := "My build"
version := "0.1.0-SNAPSHOT"
scalaVersion := "2.11.6"
val ScalatraVersion = "2.4.0"
libraryDependencies ++= Seq(
"org.scalatra" %% "scalatra" % ScalatraVersion,
"org.scalatra" %% "scalatra-specs2" % ScalatraVersion % "test",
"com.typesafe" % "config" % "1.2.1",
"ch.qos.logback" % "logback-classic" % "1.1.3" % "runtime",
"javax.servlet" % "javax.servlet-api" % "3.1.0" % "provided"
)
enablePlugins(JettyPlugin)
containerPort in Jetty := 8090
A .scala based SBT build definition does have bit less magic, and we need to import the plugin and its settings:
import sbt._
import Keys._
import org.scalatra.sbt._
import com.earldouglas.xwp.JettyPlugin
import com.earldouglas.xwp.JettyPlugin.autoImport._
import com.earldouglas.xwp.ContainerPlugin.autoImport._
The actual build definition with enablePlugins(JettyPlugin) and a custom port:
object MyBuild extends Build {
val Organization = "org.foo"
val Name = "My Build"
val Version = "0.1.0-SNAPSHOT"
val ScalaVersion = "2.11.6"
val ScalatraVersion = "2.4.0"
val mySettings =
ScalatraPlugin.scalatraSettings ++ Seq(
organization := Organization,
name := Name,
version := Version,
scalaVersion := ScalaVersion,
libraryDependencies ++= Seq(
"org.scalatra" %% "scalatra" % ScalatraVersion,
"org.scalatra" %% "scalatra-specs2" % ScalatraVersion % "test",
"com.typesafe" % "config" % "1.2.1",
"ch.qos.logback" % "logback-classic" % "1.1.3" % "runtime",
"javax.servlet" % "javax.servlet-api" % "3.1.0" % "provided"
),
containerPort in Jetty := 8090
)
lazy val project = Project("chapter09", file("."))
.enablePlugins(JettyPlugin)
.settings(mySettings: _*)
}
Make sure you are using the imports:
import com.earldouglas.xsbtwebplugin.PluginKeys._
import com.earldouglas.xsbtwebplugin.WebPlugin._
With those imports you can use then the correct key and configuration:
port in container.Configuration := 9000
This goes in the settings block:
...
lazy val project = Project (
"example",
file("."),
settings = Defaults.defaultSettings ++ ScalatraPlugin.scalatraWithJRebel ++ scalateSettings ++ Seq(
port in container.Configuration := 9000,
organization := Organization,
...
scalatra-sbt builds on xsbt-web-plugin whose settings are documented here: https://github.com/JamesEarlDouglas/xsbt-web-plugin/wiki/Settings

Answer 2

I did this and worked:
....
val port = SettingKey[Int]("port")
val Conf = config("container")
lazy val project = Project (
port in Conf := 8081,
....
)

Answer 3

I created an empty build.sbt file in the root of my project and put:
port in container.Configuration := 8090
in the file for it to work.