add paswordless listener and forwarding

mosquitto/config/mosquitto.conf

@@ -2,7 +2,21 @@ persistence true
 persistence_location /mosquitto/data/
 
 log_dest file /mosquitto/log/mosquitto.log
-listener 1883
 
+
+# Authenticated listener
+listener 1883
 allow_anonymous false
 password_file /mosquitto/config/passwords.txt
+
+
+# Anonymous listener
+listener 1884
+allow_anonymous true
+
+
+# Forward to fluentbit
+connection fluentbit
+address host:21883
+topic forward/# out 0
+topic borgmatic/# out 0