diff --git a/tests/pillar/proxy.sls b/tests/pillar/proxy.sls
index 5313ab7..6286e27 100644
--- a/tests/pillar/proxy.sls
+++ b/tests/pillar/proxy.sls
@@ -12,3 +12,12 @@
       name: etcd02
     - host: 10.0.175.103
       name: etcd03
+linux:
+  system:
+    name: hostname
+    enabled: true
+    repo:
+      docker:
+        source: 'deb http://ppa.launchpad.net/cloud-green/trusty-backports/ubuntu trusty main'
+        key_id: E6396E0A9EA00B88BF1D40C434EDB5B7EC1764A6
+        key_server: hkp://p80.pool.sks-keyservers.net:80