Add ability to switch off Request/Reply wolverine's queue declaration for RMQ transport.

Author: vitalie.glinca

src/Transports/RabbitMQ/Wolverine.RabbitMQ/Internal/RabbitMqTransport.cs

@@ -54,6 +54,8 @@ public RabbitMqTransport() : base(ProtocolName, "Rabbit MQ")
 
     public LightweightCache<string, RabbitMqQueue> Queues { get; }
 
+    internal bool DeclareRequestReplySystemQueue { get; set; } = true;
+
     public void Dispose()
     {
         try
@@ -183,19 +185,22 @@ protected override RabbitMqEndpoint findEndpointByUri(Uri uri)
 
     protected override void tryBuildSystemEndpoints(IWolverineRuntime runtime)
     {
-        var queueName = $"wolverine.response.{runtime.DurabilitySettings.AssignedNodeNumber}";
-
-        var queue = new RabbitMqQueue(queueName, this, EndpointRole.System)
+        if (DeclareRequestReplySystemQueue)
         {
-            AutoDelete = true,
-            IsDurable = false,
-            IsListener = true,
-            IsUsedForReplies = true,
-            ListenerCount = 5,
-            EndpointName = ResponseEndpointName
-        };
+            var queueName = $"wolverine.response.{runtime.DurabilitySettings.AssignedNodeNumber}";
 
-        Queues[queueName] = queue;
+            var queue = new RabbitMqQueue(queueName, this, EndpointRole.System)
+            {
+                AutoDelete = true,
+                IsDurable = false,
+                IsListener = true,
+                IsUsedForReplies = true,
+                ListenerCount = 5,
+                EndpointName = ResponseEndpointName
+            };
+
+            Queues[queueName] = queue;
+        }
 
         // Have to do this early to get everything together for the dead letter queues
         foreach (var rabbitMqQueue in Queues)

src/Transports/RabbitMQ/Wolverine.RabbitMQ/Internal/RabbitMqTransportExpression.cs

@@ -116,6 +116,17 @@ public RabbitMqTransportExpression DisableDeadLetterQueueing()
         return this;
     }
 
+    /// <summary>
+    /// Disable Wolverine's automatic Request/Reply queue declaration for a specific node
+    /// </summary>
+    /// <returns></returns>
+    public RabbitMqTransportExpression DisableSystemRequestReplyQueueDeclaration()
+    {
+        Transport.DeclareRequestReplySystemQueue = false;
+
+        return this;
+    }
+
     public class BindingExpression
     {
         private readonly string _exchangeName;