Grafana Regex Issue

Question

I am trying to parse a word before ':' character. I mean i want to get 10.10.10.10 from 10.10.10.10:9445. I tried on regex101. It worked there. But couldn't get what i want on grafana.I searched and tried but couldn't achieve what i want. Grafana doesn't throw error on that regex but also doesn't return result.

Can someone please let me know what causes this ?

Similar question

I think `^([^:]+)` will work. If you must check for `:`, use ``^([^:]+):`` — Wiktor Stribiżew, Sep 06 '19 at 06:56
Similar issue. Work on regex101 like charm but not on grafana. — rmznbyk 1, Sep 06 '19 at 07:14
It is possible it is using ES5 regex flavor then, try `([^:]+):.*` — Wiktor Stribiżew, Sep 06 '19 at 07:14
Thanks it worked. Can you post the answer? SO i can remark as answer. — rmznbyk 1, Sep 06 '19 at 07:18

score 1 · Accepted Answer · answered Sep 06 '19 at 07:20

You need to use a regex that matches the full string and use a capturing group around the part of pattern you need to get:

([^:]+):.*

It will match and capture any 1 or more chars other than : from the start of the string till the first :, then will match : and any 0 or more chars other than line break chars till end of the string (with no linebreaks).

See the regex demo.

Grafana Regex Issue

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