Maybe is a late answer, but I bumped with a similar problem and got the answer in Query with variable does not return data when Multi-Value is enabled - #2 by codlord
We have to use the “like” prometheus operator …instance=~"$instance"
Maybe is a late answer, but I bumped with a similar problem and got the answer in Query with variable does not return data when Multi-Value is enabled - #2 by codlord
We have to use the “like” prometheus operator …instance=~"$instance"