CODEWITHSUNDEEP
prometheusgrafanagrafana-variable
mfd
mfd

Reputation: 58

Dependent variable in grafana

I have a custom variable in grafana $var, which has values ["option1", "option2", "option3"]. I would like to have another custom (hidden) variable $auxvar where the value is entirely dependent on the value of $var, e.g.:

"option1" -> "auxvar_option1"
"option2" -> "auxvar_option2"
"option3" -> "auxvar_option3"

Because the value of $auxvar is entirely dependent on $var, I want the user to be able to select the value of $var and have $auxvar set automatically (without the user's knowledge). I currently just have two custom variables $var and $auxvar, where the user must set both, but this is a somewhat hacky workaround. It seems like chained variables are almost related here, but they don't quite fit my use case. I'm wondering if there's some obvious way to do this that I'm missing.

Edit: realize this is ambiguous. I should clarify that $auxvar is not directly related to the content of $var as the above implies. It's more like this:

label1 -> label2="blah2", label3="blah3"
label2 -> label1="blah1", label3="blah3"
label3 -> label1="blah1", label2="blah2"

I basically have a query that averages by $var, but based on the selection of that label, I want to limit the result set using $auxvar.

Upvotes: 1

Views: 3721

Answers (1)

Marcelo Ávila de Oliveira
Marcelo Ávila de Oliveira

Reputation: 22311

You can use key/value variables like the following example:

Type                      = Custom
Values separated by comma = var1 : auxvar1,var2 : auxvar2, var3 : auxvar3

The user will just see one picklist:

enter image description here

But you'll have the key and the value available in your panels, for example, suppose the user select "var1":

${var:text}  = var1
${var:value} = auxvar1

Upvotes: 2

Related Questions