install support packages

It will install all server packages, excluding etcd, if source.engine is
docker_hybrid

Change-Id: Ibc76735460f6a21c3142b9d0eea2da52f71b5b74
diff --git a/etcd/server/service.sls b/etcd/server/service.sls
index c067cf1..35de3f5 100644
--- a/etcd/server/service.sls
+++ b/etcd/server/service.sls
@@ -16,6 +16,15 @@
 
 {% elif server.get('source', {}).get('engine') == 'docker_hybrid' %}
 
+etcd_support_packages:
+  pkg.installed:
+    - pkgs:
+{%- for pkg in server.pkgs %}
+{%- if pkg != 'etcd' %}
+      - {{ pkg }}
+{%- endif %}
+{%- endfor %}
+
 user_etcd:
   user.present:
     - name: etcd