Read host_id from config.

src/service.py

@@ -155,7 +155,7 @@ class ApiService():
             data (Object): The data to store in the playlog
         """
         if not data.log_source:
-            data.log_source = self.host_id
+            data.log_source = self.config.get("host_id")
 
         # Main Node: Alway log entry, independed of the source
         # Sync Node: Only log entry when it's coming from an active source