add docker-compose example in separate folder

example/docker-compose/nginx/nginx.conf

@@ -0,0 +1,41 @@
+error_log stderr;
+pid /var/run/nginx.pid;
+
+events { }
+
+stream {
+        resolver 127.0.0.11 ipv6=off; #docker dns server
+        map_hash_bucket_size 64;
+
+        map $ssl_preread_server_name $internalport {
+                # redirect all requests, which contain "mq" in the SNI -> MQTT
+                ~^.*(mq).*\.eco(vacs|user)\.(net|com)$    8883;
+
+                # the rest of eco(user|vacs) requests
+                ~^.*eco(vacs|user)\.(net|com)$          443;
+
+                # mapping default to MQTT as the bots are connecting directly to the ip without SNI
+                default                                   8883;
+        }
+
+        server {
+                listen 443;
+                ssl_preread  on;
+                proxy_pass bumper:$internalport;
+        }
+
+        server {
+                listen 5223;
+                proxy_pass bumper:5223;
+        }
+
+        server {
+                listen 8007;
+                proxy_pass bumper:8007;
+        }
+
+        server {
+                listen 8883;
+                proxy_pass bumper:8883;
+        }
+}