How to change dashboard expression display while using Prometheus?

[batchenr]

Hello,

Im using grafana and promethues and i created a dashboard, it all works fine but the dashboard display show this long expression and i want it to look clean.

so insteand on this long text i can choose the specific lable , how can i do this ?

[ldrascic]

Hi @batchenr,
Since you have tags in legend you can use them if you change Legend from Auto to Custom.

Default:

Using Options -> Custom :

 
 
 
If you want to extract only part of a tag and use that as legends please check this post:

Can you extract a word from within a tag to automatically label the legend?

Hi @ppxtb, In Transform tab (near Query) you can choose Rename by regex and for Match enter: .*\(([^\)]+).* and leave Replace as $1. [Grafana regex] Regex breakdown: .* - means any symbol 0 or more times (basically means match anything) \( - specifies that after anything there must be a literal symbol ( ( - starts matching group [^)]+ - means match anything until you find ) symbol ) - closes matching group .* - matches anything till the end Replace breakdown $1 - means return wha…

Best regards,
ldrascic