enable kamon influxdb backend

conf/base.conf

@@ -757,11 +757,49 @@ kamon {
     }
   }
 
+  influxdb {
+    hostname = "127.0.0.1"
+    port = 8086
+
+    # The maximum packet size for one POST request, set to 0 to disable batching
+    max-packet-size = 16384
+
+    # The protocol, either http or udp
+    protocol = "udb"
+
+    # The measurements will be named ${application-name}-timers and -counters
+    application-name = "dev"
+
+    # Allow users to override the name of the hostname reported by kamon. When changed, the hostname tag will be
+    # the value given here.
+    hostname-override = none
+
+    # For histograms, which percentiles to count
+    percentiles = [50.0, 70.0, 90.0, 95.0, 99.0, 99.9]
+
+    # Subscription patterns used to select which metrics will be pushed to InfluxDB. Note that first, metrics
+    # collection for your desired entities must be activated under the kamon.metrics.filters settings.
+    subscriptions {
+      histogram       = [ "**" ]
+      min-max-counter = [ "**" ]
+      gauge           = [ "**" ]
+      counter         = [ "**" ]
+      trace           = [ "**" ]
+      trace-segment   = [ "**" ]
+      akka-actor      = [ "**" ]
+      akka-dispatcher = [ "**" ]
+      akka-router     = [ "**" ]
+      system-metric   = [ "**" ]
+      http-server     = [ "**" ]
+    }
+  }
+
   modules {
     kamon-statsd {
       auto-start = no
-      requires-aspectj = no
-      extension-id = "kamon.statsd.StatsD"
+    }
+    kamon-influxdb {
+      auto-start = no
     }
   }
 }

project/Build.scala

@@ -35,7 +35,8 @@ object ApplicationBuild extends Build {
         scalaz, scalalib, hasher, config, apache,
         jgit, findbugs, reactivemongo.driver, reactivemongo.iteratees, akka.actor, akka.slf4j,
         spray.caching, maxmind, prismic,
-        kamon.core, kamon.statsd, java8compat, semver, scrimage),
+        kamon.core, kamon.statsd, kamon.influxdb,
+        java8compat, semver, scrimage),
       TwirlKeys.templateImports ++= Seq(
         "lila.game.{ Game, Player, Pov }",
         "lila.tournament.Tournament",
@@ -70,7 +71,7 @@ object ApplicationBuild extends Build {
       libraryDependencies ++= provided(
         play.api, hasher, config, apache, jgit, findbugs,
         reactivemongo.driver, reactivemongo.iteratees,
-        kamon.core, kamon.statsd)
+        kamon.core, kamon.statsd, kamon.influxdb)
     ) aggregate (moduleRefs: _*)
 
   lazy val puzzle = project("puzzle", Seq(

project/Dependencies.scala

@@ -65,5 +65,6 @@ object Dependencies {
     val version = "0.6.3"
     val core = "io.kamon" %% "kamon-core" % version
     val statsd = "io.kamon" %% "kamon-statsd" % version
+    val influxdb = "io.kamon" %% "kamon-influxdb" % version
   }
 }