Add canary nightly build job

Bug: twpowertools:20
Change-Id: I622c1d671ba8fc623a96ce5d92fd6edead6c90f1
diff --git a/playbooks/nightly-build/run.yaml b/playbooks/nightly-build/run.yaml
new file mode 100644
index 0000000..a10991c
--- /dev/null
+++ b/playbooks/nightly-build/run.yaml
@@ -0,0 +1,6 @@
+- hosts: all
+  roles:
+    - role: cws-publish
+      vars:
+        extension_id: "phefpbdhiknkamngjffpnebaemanmihf"
+        dry_run: false