Yes, we're using Ansible already so this is definitely doable using a Jinja template -- thanks for the suggestion. I just wanted to make sure I wasn't missing something obvious re: the federation syntax.
On Tuesday, November 15, 2022 at 7:48:09 PM UTC+2 Brian Candler wrote: > Maybe you could store the matches in a readable file (e.g. YAML or just a > plain text file), then write a simple tool to read this in and convert it > to the long regexp. > > On Tuesday, 15 November 2022 at 15:05:53 UTC [email protected] wrote: > >> Thank you Brian. >> >> That's definitely a more compact format, but the downside to that >> approach is that it cannot be split up into multiple lines for readability >> since it breaks YAML folding due to conversion of newlines to spaces. If >> using more than a few matching blacklist expressions, tracking changes in a >> single line becomes cumbersome. >> >> On Tuesday, November 15, 2022 at 9:41:03 AM UTC+2 Brian Candler wrote: >> >>> {__name__!~"(prefix_1|prefix_2).+"} >>> >>> On Tuesday, 15 November 2022 at 06:59:34 UTC [email protected] wrote: >>> >>>> Hello, >>>> >>>> I'm trying to find the best way to use federation to match a metric >>>> blacklist. Currently we are using a single query string as one long array >>>> element to accomplish this, i.e.: >>>> >>>> params: >>>> 'match[]': >>>> - >- >>>> {__name__=~".+", >>>> __name__!~"prefix_1.+", >>>> __name__!~"prefix_2.+"} >>>> >>>> Breaking up this string into multiple elements does not work, as each >>>> element is parsed into a separate match[] parameter in the HTTP >>>> request. The response appears as if each array element was queried >>>> individually and combined together after query execution, so one element >>>> only excludes one prefix, the next element only excludes the next prefix, >>>> etc. with the result that all matching timeseries are eventually returned. >>>> >>>> What is the recommend way to provide a query blacklist when federating >>>> Prometheus servers? >>>> >>> -- 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/4639dbb1-fd9f-43c4-8a0c-d6495277308an%40googlegroups.com.
