Thanks for clarifying, Marcelo! Having never used the regex matching myself, I also wasn't 100% sure about that :)
On Mon, Mar 22, 2021 at 10:18 PM Marcelo Magallón < [email protected]> wrote: > blackbox_exporter applies the provided regular expression against the > entire body. > > This means in particular that if your body is something like ['O', 'K', > '\n'] (O, followed by K, followed by a carriage return), the regular > expression '^OK$' WILL NOT match because '$' anchors it to the end of the > body, not the end of the line. > > In order to match lines, not the whole body, you have to write > '(?m:^OK$)'. This will match 'OK' on a line by its own, but not say NOK on > a line by its own. It will also match on a body like > 'Something\nOK\nsomething\n'. > > I hope this helps, > > Marcelo > > On Mon, Mar 22, 2021 at 1:54 PM Yagyansh S. Kumar < > [email protected]> wrote: > >> Hi Julius, >> >> Using the expression "^OK$" leads to the failure of all the checks for >> which response was OK. This seems weird to me. Ideally, should have worked. >> Any more workarounds or suggestions to achieve this? >> >> On Mon, Mar 22, 2021 at 9:38 PM Yagyansh S. Kumar < >> [email protected]> wrote: >> >>> Thanks, Julius. >>> >>> On Mon, Mar 22, 2021 at 6:50 PM Julius Volz <[email protected]> >>> wrote: >>> >>>> Hi, >>>> >>>> the Blackbox exporter doesn't do full-string matching for these >>>> regexes, but substring matching, so it also matches if the body contains >>>> "OK" anywhere (which is true for "NOK"). Try '^OK$` instead? >>>> >>>> Also, in case your HTTP endpoint returns a status code other than 2xx, >>>> you will have to set the "valid_status_codes" list to the allowed ones (it >>>> defaults to 2xx). >>>> >>>> Regards, >>>> Julius >>>> >>>> On Mon, Mar 22, 2021 at 9:03 AM [email protected] < >>>> [email protected]> wrote: >>>> >>>>> Can someone please help! I am confused here. >>>>> >>>>> On Monday, March 15, 2021 at 12:20:03 PM UTC+5:30 [email protected] >>>>> wrote: >>>>> >>>>>> >>>>>> Hi. I am using blackbox_exporter version 0.18.0 and I am using http >>>>>> prober to check if the response by my URL is "OK" or not. Below is the >>>>>> configuration of the module. >>>>>> >>>>>> http_healthcheck_ok: >>>>>> prober: http >>>>>> timeout: 10s >>>>>> http: >>>>>> valid_http_versions: ["HTTP/1.1", "HTTP/2.0", "HTTP/1.0"] >>>>>> * fail_if_body_not_matches_regexp: ['OK']* >>>>>> method: GET >>>>>> no_follow_redirects: false >>>>>> fail_if_ssl: false >>>>>> fail_if_not_ssl: false >>>>>> tls_config: >>>>>> insecure_skip_verify: true >>>>>> preferred_ip_protocol: "ip4" >>>>>> >>>>>> So, whenever my URL throws anything other than OK in the response >>>>>> body, probe_failed_due_to_regex should 1 right? But when the URL was >>>>>> throwing *NOK *as the response body, probe_failed_due_to_regex was >>>>>> still 0, whereas it should be 1. Am I missing something here? >>>>>> >>>>>> Thanks in advance! >>>>>> >>>>> -- >>>>> 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 on the web visit >>>>> https://groups.google.com/d/msgid/prometheus-users/e6db4504-48e6-4ad9-a640-1e63dc6e472en%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/prometheus-users/e6db4504-48e6-4ad9-a640-1e63dc6e472en%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> >>>> >>>> -- >>>> Julius Volz >>>> PromLabs - promlabs.com >>>> >>> >>> >>> -- >>> Thanks & Regards >>> Yagyansh S. Kumar >>> DevOps Engineer, Dailyhunt - Bangalore >>> 8696078312,8209496395 >>> >> >> >> -- >> Thanks & Regards >> Yagyansh S. Kumar >> DevOps Engineer, Dailyhunt - Bangalore >> 8696078312,8209496395 >> >> -- >> 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 on the web visit >> https://groups.google.com/d/msgid/prometheus-users/CAFGi5vArLJ1m-2Huui6P50N6HFdwztTDw7m0-bC8fGhiV9q0fg%40mail.gmail.com >> <https://groups.google.com/d/msgid/prometheus-users/CAFGi5vArLJ1m-2Huui6P50N6HFdwztTDw7m0-bC8fGhiV9q0fg%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > Marcelo Magallón > -- Julius Volz PromLabs - promlabs.com -- 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 on the web visit https://groups.google.com/d/msgid/prometheus-users/CAObpH5wRpUZkH5TQ8xiXGRue5Av5-fb_r4X2ysL1%2BxCAGcs%3D2w%40mail.gmail.com.
