Add service_url config option to volvooncall (#7919)

* Add service_url config option to volvooncall

* Import default value from volvooncall lib

homeassistant/components/volvooncall.py

@@ -26,6 +26,7 @@
 CONF_UPDATE_INTERVAL = 'update_interval'
 MIN_UPDATE_INTERVAL = timedelta(minutes=1)
 DEFAULT_UPDATE_INTERVAL = timedelta(minutes=1)
+CONF_SERVICE_URL = 'service_url'
 
 RESOURCES = {'position': ('device_tracker',),
              'lock': ('lock', 'Lock'),
@@ -51,16 +52,19 @@
             {cv.slug: cv.string}),
         vol.Optional(CONF_RESOURCES): vol.All(
             cv.ensure_list, [vol.In(RESOURCES)]),
+        vol.Optional(CONF_SERVICE_URL): cv.string,
     }),
 }, extra=vol.ALLOW_EXTRA)
 
 
 def setup(hass, config):
     """Set up the Volvo On Call component."""
+    from volvooncall import DEFAULT_SERVICE_URL
     from volvooncall import Connection
     connection = Connection(
         config[DOMAIN].get(CONF_USERNAME),
-        config[DOMAIN].get(CONF_PASSWORD))
+        config[DOMAIN].get(CONF_PASSWORD),
+        config[DOMAIN].get(CONF_SERVICE_URL, DEFAULT_SERVICE_URL))
 
     interval = config[DOMAIN].get(CONF_UPDATE_INTERVAL)