redis.rb in newrelic_rpm-9.12.0

- old
+ new

@@ -8,10 +8,11 @@
 require_relative 'redis/instrumentation'
 require_relative 'redis/chain'
 require_relative 'redis/constants'
 require_relative 'redis/prepend'
 require_relative 'redis/middleware'
+require_relative 'redis/cluster_middleware'
 
 DependencyDetection.defer do
   # Why not :redis? newrelic-redis used that name, so avoid conflicting
   @name = :redis_instrumentation
   configure_with :redis
@@ -31,9 +32,13 @@
 
   executes do
     NewRelic::Agent.logger.info('Installing Redis Instrumentation')
     if NewRelic::Agent::Instrumentation::Redis::Constants::HAS_REDIS_CLIENT
       RedisClient.register(NewRelic::Agent::Instrumentation::RedisClient::Middleware)
+
+      if defined?(Redis::Cluster::Client)
+        return RedisClient.register(NewRelic::Agent::Instrumentation::RedisClient::ClusterMiddleware)
+      end
     end
 
     if use_prepend?
       prepend_instrument Redis::Client, NewRelic::Agent::Instrumentation::Redis::Prepend
     else