Select value from custom key/value variable in Grafana

Question

I want dome devices connected to a Grafana dashboard. Each device has a name. I wanted to "attatch" an IP to each device, but I can't modify the database, so I figured I could use custom variables.

The name of the device is saved on the "name" variable and I used a key/value custom variable called "list" with the name of the device as the key, and the IP as the value, like this:

DEVICE 1 : 192.168.0.26, DEVICE 2 : 192.168.0.27

Now I want to display the correct IP when the user select the name of the device but I haven't figured out the right way to do it.

I've tried the following:

Use the "Repeat by variable option" in the panel where I want to display the IP in, and select the variable "name".
Tried to access the value using this sintax: ${list[name]} and ${list.${name}}
Using this sintax ${list.name} seems to work, but it only displays the first value.

I can't make it happened. Please help me with the right sintax or the right way to do this.

It is not clear how you have defined that variable and what kind of syntax is expected after variable interpolation. — Jan Garaj
– Jan Garaj, Commented Oct 21, 2021 at 17:01

Vladimir · Accepted Answer · 2022-02-02 10:27:09Z

5

Correct syntax for custom variables is ${variable:text} and ${variable:value}. So in your case ${variable:value} will print IP.

answered Feb 2, 2022 at 10:27

Vladimir

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