CORD-993
elasticstack role, installs on head node
fix elasticstack/java apt-cacher passthrough
reliability fix for download Glance VM images
more reliable reliability fix
simplify apt-cacher ssl passthrough
apt-cacher defaults in other roles

Change-Id: Ia78d256f562c30539240d12ba163f7af6e375131
diff --git a/roles/apt-cacher-ng/defaults/main.yml b/roles/apt-cacher-ng/defaults/main.yml
index 84d55a4..ec5a1e1 100644
--- a/roles/apt-cacher-ng/defaults/main.yml
+++ b/roles/apt-cacher-ng/defaults/main.yml
@@ -1,6 +1,12 @@
 ---
 # apt-cacher-ng/defaults/main.yml
 
-apt_cacher_name: 127.0.0.1
+apt_cacher_name: apt-cache
 apt_cacher_port: 3142
 
+apt_ssl_sites:
+  - apt.dockerproject.org
+  - butler.opencloud.cs.arizona.edu
+  - deb.nodesource.com
+  - artifacts.elastic.co
+