Added CdistUtils class to manage indices

utils/cdist_utils.py

@@ -0,0 +1,26 @@
+import cdist.integration as cdist_integration
+
+
+class CdistUtilts():
+    @staticmethod
+    def get_cdist_index():
+        """
+        Returns the next available instance index.
+        This is useful while making simultaneous configurations of
+        the same host.
+        :return: the next available index
+        """
+        cdist_instance_index = cdist_integration.instance_index
+        cdist_index = next(cdist_instance_index)
+        return cdist_index
+
+    @staticmethod
+    def free_cdist_index(cdist_index):
+        """
+        Frees up the index that was used during configuring a host
+        using cdist.
+        :param cdist_index: The index to be freed
+        :return:
+        """
+        cdist_instance_index = cdist_integration.instance_index
+        cdist_instance_index.free(cdist_index)