[#504] CHanged a way to store crednetials in Secret. Now store a conn…

…ections in separate keys

legion_airflow/legion_airflow/hooks/k8s_base_hook.py

@@ -51,7 +51,8 @@ def _get_conn_from_k8s(cls, conn_id):
             storage_name=cls.STORAGE_NAME_PREFIX,
             k8s_namespace=os.environ['NAMESPACE']
         )
-        connection_data = yaml.load(config_map.data['data'])
-        if conn_id not in connection_data.keys():
+        if conn_id not in config_map.data:
             raise Exception("Doesn't have {} value in k8s secret".format(conn_id))
-        return Connection(**connection_data.get(conn_id))
+
+        connection_data = yaml.load(config_map.data[conn_id])
+        return Connection(**connection_data)