CORD-1000 Build and publish XOS images on corddev

Change-Id: I10f9a41220ac42e412b0fb90d574d17556c2c4e8
diff --git a/roles/pull-xos-docker-images/defaults/main.yml b/roles/pull-xos-docker-images/defaults/main.yml
new file mode 100644
index 0000000..bf12830
--- /dev/null
+++ b/roles/pull-xos-docker-images/defaults/main.yml
@@ -0,0 +1 @@
+deploy_docker_tag: candidate
\ No newline at end of file