Bertrand Lallau a49e18a73f Fix Grafana config file template to use variables
Grafana session/provider_config property actually uses a static user
and a static database name.
If grafana_database_user and grafana_database_name default value is
changed, the config generated will not be updated accordingly.

Change-Id: I517daab5439ab1aef56a4b3a11104bd0717223bf
Closes-Bug: #1682810
2017-04-14 14:40:53 +02:00
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