Wait for connection to entityident

components/orchestration/orchestrator.py

@@ -21,6 +21,8 @@ sys.modules['target_velocity'] = target_velocity
 
 ENTITY_IDENT_URL = 'http://entityident:5002/api/v1/resources/'
 
+SCALING = 1
+
 
 class Orchestrator:
     # vehicle ids
@@ -38,15 +40,18 @@ class Orchestrator:
         # re-use http session, is faster then request.ing everytime
         self._session = requests.Session()
 
-        try:
-            response = self._session.get(ENTITY_IDENT_URL + 'cars')
-            cars = response.json()
+        available = False
+        while not available:
+            try:
+                response = self._session.get(ENTITY_IDENT_URL + 'cars')
+                cars = response.json()
 
-            response = self._session.get(ENTITY_IDENT_URL + 'traffic_lights')
-            traffic_lights = response.json()
-        except requests.exceptions.ConnectionError as e:
-            print("Is the entity_ident_server running and reachable?")
-            raise e
+                response = self._session.get(ENTITY_IDENT_URL + 'traffic_lights')
+                traffic_lights = response.json()
+            except requests.exceptions.ConnectionError as e:
+                print("Is the entity_ident_server running and reachable?")
+                continue
+            available = True
 
         for car in cars['cursor']:
             self.vins.append(car['vin'])