run coach on another mongodb instance - lol that was easy

conf/base.conf

@@ -548,6 +548,10 @@ importer {
 }
 mobile.app.version = "1.3.0"
 coach {
+  mongodb {
+    uri = "mongodb://127.0.0.1:27037/lichess"
+    mongo-async-driver = {}
+  }
   collection {
     entry = coach_entry
   }

modules/coach/src/main/Env.scala

@@ -13,13 +13,15 @@ final class Env(
     areFriends: (String, String) => Fu[Boolean],
     lightUser: String => Option[lila.common.LightUser],
     system: ActorSystem,
-    db: lila.db.Env) {
+    lifecycle: play.api.inject.ApplicationLifecycle) {
 
   private val settings = new {
     val CollectionEntry = config getString "collection.entry"
   }
   import settings._
 
+  private val db = new lila.db.Env(config getConfig "mongodb", lifecycle)
+
   // private lazy val jsonWriters = new JSONWriters(lightUser = lightUser)
 
   lazy val share = new Share(getPref, areFriends)
@@ -41,5 +43,5 @@ object Env {
     areFriends = lila.relation.Env.current.api.areFriends,
     lightUser = lila.user.Env.current.lightUser,
     system = lila.common.PlayApp.system,
-    db = lila.db.Env.current)
+    lifecycle = lila.common.PlayApp.lifecycle)
 }