Using Grafana 9.5.2 on Debian Bullseye 5.15.108-1
I want to change the labels for my chart data. I would like to use a substring of an existing tag: $tag_friendly_name
This tag has results e.g. thp_bedroom_temperature and I just want to extract the room name: i.e. bedroom.
I know I could do this with an override but I have many such graphs and it would be much easier to do this procedurally if this is possible. I have seen many postings where people are trying to do something similar but I cannot find the solution. I am hoping that it is a case of entering a special string in the ALIAS field to be able this.
If anyone can help, it would be much appreciated.
Thanks in advance!