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/elasticstack/files/10-udp-input.conf b/roles/elasticstack/files/10-udp-input.conf
new file mode 100644
index 0000000..d144f5b
--- /dev/null
+++ b/roles/elasticstack/files/10-udp-input.conf
@@ -0,0 +1,6 @@
+input {
+  udp {
+    port => 5617
+    codec => json
+  }
+}