rename conpot fields to match index pattern

docker/elk/logstash/dist/logstash.conf

@@ -170,6 +170,12 @@ filter {
     date {
       match => [ "timestamp", "ISO8601" ]
     }
+    mutate {                                                                                                                                                                                                                                                              
+      rename => {                                                                                                                                                                                                                                                         
+        "dst_port" => "dest_port"                                                                                                                                                                                                                                         
+        "dst_ip" => "dest_ip"                                                                                                                                                                                                                                             
+      }                                                                                                                                                                                                                                                                   
+    }                                                                                                                                                                                                                                                                     
   }
 
 # Cowrie