Added deploy pipeline

Change-Id: I15eadf5e36c1d5007ad5f2918d65ac242366395b
diff --git a/zuul.d/pipelines.yaml b/zuul.d/pipelines.yaml
index fc40d4a..b2f37e8 100644
--- a/zuul.d/pipelines.yaml
+++ b/zuul.d/pipelines.yaml
@@ -209,3 +209,21 @@
     trigger:
       timer:
         - time: '0 2 * * *'
+
+- pipeline:
+    name: deploy
+    description: |
+      This pipeline runs jobs that operate after each change is merged
+      in order to run production deployment playbooks.
+    success-message: Build succeeded (deploy pipeline).
+    failure-message: Build failed (deploy pipeline).
+    manager: serial
+    precedence: high
+    post-review: True
+    trigger:
+      gerrit:
+        - event: change-merged
+    success:
+      gerrit: {}
+    failure:
+      gerrit: {}