added datadog to dock-init.yml

Author: kaushikanurag

ansible/dock-init.yml

@@ -10,4 +10,4 @@
   - { role: git_repo, tags: [deploy] }
   - { role: dock-init, tags: [deploy] }
   - { role: consul_value, tags: [deploy, consul_value] }
-
+  - { role: datadog, tags [deploy, datadog] }