Hello Brian, want to say "thank you". The regex worked and the explaination helped a lot with following regex. In addition I have to say that I used the prometheus.snmp.exporter implementation in Grafana Alloy agent, first. This implementation has issues with some regex which are working with the snmp_exporter. After using snmp_exporter's debug I could find out which other metrics and regex are wrong and could correct themn.
https://github.com/grafana/alloy/issues/4381 Thank you very much! Brian Candler schrieb am Samstag, 6. September 2025 um 10:59:57 UTC+2: > > In addition ist it expected that the regex in the generator is different > than in the snmp.yml afterwards? > > To clarify this point: > > ^ = match at start of string only > (?: ) = non-capturing group > $ = match at end of string only > > Therefore, by wrapping your original regex with ^(?: )$ it anchors it at > the start and end of the string, without allowing any spurious characters > before or after. This is for consistency with how Prometheus handles > regexs elsewhere, e.g. in label matchers, rewriting rules etc. > -- 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 [email protected]. To view this discussion visit https://groups.google.com/d/msgid/prometheus-users/a2506052-32ea-4a5a-97a5-7f98305b65dbn%40googlegroups.com.
