Your "targets" under "static_configs" don't include a port number, so they won't match your regex. Therefore, you can either add :443 to the targets, or you could do
relabel_configs: - source_labels: [__address__] target_label: instance Your second test config will likely create scraping errors as you'll end up with duplicate metrics all sharing the same label sets with {instance="foo"}. But if you make your scrape job have a single target, it ought to work, and I don't know why it doesn't. Are you using regular prometheus directly, or via some docker / helm chart? The problem might be with the latter. On Tuesday, 13 June 2023 at 13:49:31 UTC+1 Igor Sverkos wrote: > Hi, > > I'd like to have a "instance" label value without ":<port>". This seems to > be a common task according to > > - https://www.robustperception.io/controlling-the-instance-label/ > - https://groups.google.com/g/prometheus-users/c/I4dVtwI5YrM > - > https://valyala.medium.com/how-to-use-relabeling-in-prometheus-and-victoriametrics-8b90fc22c4b2#8559 > > But none of this is working for me. > > However, doing it in "metric_relabel_configs" instead works. > > Config looks like > > scrape_configs: > - job_name: node-external > scheme: "https" > metrics_path: "/exporters/node/metrics" > static_configs: > - targets: > - host1.example.org > - host2.example.org > relabel_configs: > - source_labels: [__address__] > regex: "([^:]+):.+" > target_label: "instance" > > I even tried without the regex just in case, i.e. > > relabel_configs: > - target_label: "instance" > replacement: "foo" > > but "instance" value will stick to "host1.example.org:443" for example. > > If I'll do the relabeling in metric_relabel_configs instead, the shown > config will work. > > I am using prometheus v2.37.8. > > Was this changed in the recent past? I cannot believe that all the > documentations and blog postings are wrong. Am I missing something? > > > -- > Igor > > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to prometheus-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/510e20e3-d58c-4fee-8b39-59c93a44cedan%40googlegroups.com.