1 files changed, 6 insertions, 0 deletions
diff --git a/cloudinit/sources/DataSourceEc2.py b/cloudinit/sources/DataSourceEc2.py
index 7e845571..c7ad6d54 100644
--- a/cloudinit/sources/DataSourceEc2.py
+++ b/cloudinit/sources/DataSourceEc2.py
@@ -77,6 +77,12 @@ class DataSourceEc2(sources.DataSource):
                         self.metadata_address)
             return False
 
+    @property
+    def launch_index(self):
+        if not self.metadata:
+            return None
+        return self.metadata.get('ami-launch-index')
+
     def get_instance_id(self):
         return self.metadata['instance-id']