add the public fedmsg relay for ci.centos.org to the fedora staging infrastructure

roles/fedmsg/base/tasks/main.yml

@@ -106,6 +106,7 @@
   - ssl.py
   - endpoints.py
   - endpoints-anitya.py
+  - endpoints-cico.py
   - endpoints-pagure.py
   - endpoints-fedocal.py
   - endpoints-fedbadges.py

roles/fedmsg/base/templates/endpoints-cico.py.j2

@@ -0,0 +1,11 @@
+# This tells nodes to pull messages from ci.centos.org
+
+config = dict(
+    {% if env == 'staging' %}
+    endpoints={
+        "centos-ci-public-relay": [
+            "tcp://fedmsg-relay.ci.centos.org:9940",
+        ],
+    },
+    {% endif %}
+)