Adding pgsql datasource for Grafana

Author: marcleblanc2

base/monitoring/grafana/grafana.ConfigMap.yaml

@@ -17,3 +17,12 @@ data:
         url: http://prometheus:30090
         isDefault: true
         editable: false
+      - name: pgsql
+        type: postgres
+        url: $PGHOST:$PGPORT
+        user: $PGGRAFANAUSER
+        database: $PGDATABASE
+        secureJsonData:
+          password: $PGGRAFANAPASSWORD
+        jsonData:
+          sslmode: $PGSSLMODE