Add kamon.io metrics reporting (#395)

* Add kamon.io metrics reporting

* Line length + whitespace

build.sbt

@@ -44,7 +44,9 @@ lazy val commonSettings = Seq(
     "com.github.mauricio"        %% "postgresql-async" % "0.2.21",
     "com.github.t3hnar"          %% "scala-bcrypt"  % "3.1",
     "org.ini4j"                  % "ini4j"         % "0.5.4",
-    "org.scala-graph"            %% "graph-core"    % "1.12.5"
+    "org.scala-graph"            %% "graph-core"    % "1.12.5",
+    "io.kamon"                   %% "kamon-bundle" % "2.1.0",
+    "io.kamon"                   %% "kamon-apm-reporter" % "2.1.0"
   )
 )
 

config/worldserver.ini.dist

@@ -218,3 +218,17 @@ NetSim.ReorderTime = 150 milliseconds
 
 #
 ###################################################################################################
+
+
+[kamon]
+
+# Kamon
+#
+#    Active (boolean)
+#        Description: Enables reporting of metrics to Kamon.io
+#        Important:   Ensure the API key is set in application.conf in the same
+#                     folder as PsLogin.scala
+#        Default:     no  - (Disabled)
+#                     yes - (Enabled)
+
+Active = no

project/plugins.sbt

@@ -2,5 +2,6 @@ logLevel := Level.Warn
 
 addSbtPlugin("org.xerial.sbt" % "sbt-pack" % "0.12")
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.6.1")
+addSbtPlugin("io.kamon" % "sbt-kanela-runner" % "2.0.6")
 // https://github.com/sbt/sbt-unidoc
 //addSbtPlugin("com.eed3si9n" % "sbt-unidoc" % "0.4.2")

pslogin/src/main/scala/PsLogin.scala

@@ -28,6 +28,8 @@ import scala.collection.JavaConverters._
 import scala.concurrent.Await
 import scala.concurrent.duration._
 
+import kamon.Kamon
+
 object PsLogin {
   private val logger = org.log4s.getLogger
 
@@ -221,6 +223,15 @@ object PsLogin {
       "akka.logging-filter" -> "akka.event.slf4j.Slf4jLoggingFilter"
     ).asJava
 
+    WorldConfig.Get[Boolean]("kamon.Active") match {
+      case true =>
+        logger.info("Starting Kamon")
+
+        Kamon.init()
+      case _ => ;
+    }
+
+
     logger.info("Starting actor subsystems")
 
     /** Start up the main actor system. This "system" is the home for all actors running on this server */

pslogin/src/main/scala/WorldConfig.scala

@@ -37,6 +37,9 @@ object WorldConfig extends ConfigParser {
       ConfigEntryTime ("NetSim.Delay", 150 milliseconds, Constraints.min(0 seconds), Constraints.max(2 seconds)),
       ConfigEntryFloat("NetSim.ReorderChance", 0.005f, Constraints.min(0.0f), Constraints.max(1.0f)),
       ConfigEntryTime ("NetSim.ReorderTime", 150 milliseconds, Constraints.min(0 seconds), Constraints.max(2 seconds))
+    ),
+    ConfigSection("kamon",
+      ConfigEntryBool("Active", false)
     )
   )
 

pslogin/src/main/scala/application.conf

@@ -0,0 +1,4 @@
+kamon {
+  environment.service = "PSForever"
+  apm.api-key = ""
+}