Initial commit of PostgreSQL ansible role

Change-Id: Ieb82fed65ac8957058c4269182e1ea06f5bb87ee
diff --git a/vars/Debian.yml b/vars/Debian.yml
new file mode 100644
index 0000000..e10967d
--- /dev/null
+++ b/vars/Debian.yml
@@ -0,0 +1,12 @@
+---
+# postgresql vars/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+#
+# NOTE: Only put platform/OS-specific variables in this file.
+# Put all other variables in the 'defaults/main.yml' file.
+
+pgsql_service: "postgresql"
+
+pgsql_unix_username: "postgres"