added auth to ntp formula

Change-Id: Ida54379a126ff1c43517bbe489f3fb591e89c004
diff --git a/metadata/service/client/single.yml b/metadata/service/client/single.yml
new file mode 100644
index 0000000..f0d44e1
--- /dev/null
+++ b/metadata/service/client/single.yml
@@ -0,0 +1,18 @@
+applications:
+  - ntp
+classes:
+  - service.ntp.support
+parameters:
+  _param:
+    ntp_strata_host1: ntp.cesnet.cz
+    ntp_strata_key1: ~
+  ntp:
+    client:
+      enabled: true
+      stratum:
+        primary:
+          server: ${_param:ntp_strata_host1}
+          key_id: ${_param:ntp_strata_key1}
+    server:
+      enabled: false
+      mode7: false