moved upstream repo to an include, checked for Ubuntu before attempting to add it

postgres/upstream.sls

@@ -0,0 +1,11 @@
+{% from "postgres/map.jinja" import postgres with context %}
+
+{% if grains['os'] == 'Ubuntu' %} # Other distro support should be added here
+install-postgresql-repo:
+  pkgrepo.managed:
+    - humanname: PostgreSQL Official Repository
+    - name: {{ postgres.pkg_repo }}
+    - keyid: B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+    - keyserver: keyserver.ubuntu.com
+    - file: {{ postgres.pkg_repo_file }}
+{% endif %}