fix: skip icinga host creation if not configured

server.py

@@ -334,8 +334,11 @@ def create_app():
                                     owner=config[key]["owner"]))
         db.session.commit()
 
-    # create dummy host #
-    icingatools.create_master_host(app)
+    # create icinga host #
+    if not app.config.get("ICINGA_API_URL"):
+        print("ICINGA_API_URL not defined. Not connecting Icinga", file=sys.stderr)
+    else:
+        icingatools.create_master_host(app)
 
 
 if __name__ == "__main__":