I’m using that CSV plugin, installed from within grafana itself, as it’s not packaged for Debian.
My csv file is then on some test webserver and contains:
group
storage nodes;^lcg-lrz-dc.*.grid.lrz.de$
with group being merely a header.
The dashboard’s variable is configured like this:
The panel’s queries are:
And if I set the panel’s title to: ${node:raw} I get:
Which I think is just what you get, isn’t it?