How to use a variable in a query, to create an interactive dashboard?

Grafana Prometheus
1

Currently trying to do an interactive dashboard where the user can type in an IP address, and then it will list all pods associated with that IP address.

A hardcoded query that WORKS is kube_pod_info{host_ip="10.12.100.100"} with legend as {{pod_name}}. But when I create a variable (such as a text variable) called pod_host_ip, with a default value of 10.12.100.100, and I use a query such as kube_pod_info{host_ip=${pod_host_ip}}, it no longer works. Any ideas for me?

Note that this is using prometheus.

2

I figured out this question. When I make it a text variable, and use the following as the query (note the quotes, etc.), it DID work!

kube_pod_info{host_ip="$pod_host_ip"}

Note that as an ad-hoc filter variable, which I also tried, it didn’t work.