Update ubuntu docker file and add autoscaling templates

  Related-PROD: PROD-36128

Change-Id: Ic983e236e4342d50a5df7075a5a47eaeb866ac16
diff --git a/autoscale/environment.yaml b/autoscale/environment.yaml
new file mode 100644
index 0000000..19907c4
--- /dev/null
+++ b/autoscale/environment.yaml
@@ -0,0 +1,2 @@
+resource_registry:  
+    "OS::Nova::Server::Ubuntu": "server.yaml"