Any way to add label to all metrics in instance?

[riZZZhik]

Hi, I have a web service with multiple similar hosts (balanced by nginx and so on).

I want to divide metrics between them, cuz when I collect them they have similar names, the first idea I came up with is to add "host_uuid" label to all metrics from each host, but exchange this variable between everything would be bad code.

Is there any way to divide metrics in prometheus, or add label to all metrics?

[riZZZhik]

Found in docs, sorry :D