grafana prometheus use legend from other series -


have following series , want use host[host] legend instead of instance. can help?

first one:

  • node_load1{instance=~"$node"}
  • node_load1{instance="10.42.220.165:9100",job="hostsmetrics"}

and second one:

  • host{instance=~"$node"}
  • host{host="srv02.example.com",instance="10.42.220.165:9100",job="hostsmetrics",node="prometheus-node-exporter-2"}

it looks searching vector matching. there nice blog post robust perception here seems describes solution problem.

in short, assuming second metric has value of 1 should able this:

node_load1{instance=~"$node"} * on (instance) group_left(host) host{instance=~"$node"}

this add host label host metric resulting vector.

hope helps.

in case need more labels added resulting vector add group_left(host) part group_left(host, node).


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