Grafana variable regex capture group example. " string component? As this is embedded in the Grafana tool, I cannot "pipe" multiple regexp instantiations together with a shell - I only get one regexp opportunity to modify the results. Sep 4, 2023 · Named text and value capture groups variable. Sep 17, 2024 · Regex in Grafana queries provides powerful data filtering and extraction capabilities. Your application of alteration for regex is incorrect: in case of alteration only one of groups will be matched (text in your exact case). 8 Grafana 10. net|192. domain. Got this but doesn't work as expected : Aug 4, 2021 · Hi @divinp,. " Jan 15, 2022 · Hi all, I have a problem to understand the correct usage of named text and value capture groups for variables. With the query result values of: [email protected] [email protected] [email protected] I would like the regex to produce two named capture groups text and value. To match same text multiple times you'll need to employ a trick: capturing groups inside of lookaheads. Dec 21, 2020 · I'd like to use grafana to filter values by name: This is an example of my keys and values: disk_usage. Apr 7, 2021 · I am not sure if it is already there. ?),(. Master key regex operators and syntax for effective pattern matching. Using regex in Grafana templating - how? 7: 86270: January 13, 2021 Home ; Categories ; Guidelines ; Apr 27, 2023 · This is more of the regex problem, then Grafana problem. I have a set of data like this “hostname. as per the Regexp. Integrate regex with Grafana's alerting system for more precise notifications. used 0 1608582030 disk_usage. Oct 3, 2023 · I should get the result on a named captured group called "value" (used for Grafana) I am trying to capture one or more variables in a string, not just the first value found. If you do not want Grafana to do this automatic regular expression escaping and formatting, then you must do one of the following: Turn off the Multi-value or Include All option options. Aug 4, 2021 · as per the Regexp. 1” where I’d like to have a dropdown box for the user to select the host and use the corresponding ip address in other charts. Grafana. 1 I want to query multiple service statuses from a Zabbix data source. Consider a,b,c as a label. Feb 22, 2025 · Filter and modify using named text and value capture groups. Sep 14, 2023 · What Grafana version and what operating system are you using? Oracle Linux Server 8. For example, a variable used in a regex expression in an InfluxDB or Prometheus query will be regex escaped. WORK-painting, work-722 Grafana variable regex returns no results when using MongoDB source Softest proof that every group is the . Oct 22, 2021 · @fadjar340 Here are the new Grafana docs for regex-based value-mapping. root. Especially for InfluxDB and Prometheus where the use of regular expression syntax requires that the variable is used in regular expression operator context. 26@2x] Here is my rather ugly regex with a capture group for the user IDs: [CleanShot 2021-09-28 at 13. prototype. But, you can use the regex field inside Grafana. dev. This will work for any datasource. Note: This feature is available in Grafana 7. I would Question: How would I modify that regular expression so it gives me a more concise result set by also stripping the leading "rpz_c_1. Using named capture groups, you can capture separate ’text’ and ‘value’ parts from the options returned by the variable query. Read the data source specific documentation topic for details on value escaping during interpolation. 0. To make it a bit easier, I’ve set up a constant variable with the following regex value: all_services = /^Service1$|^Service2$|^Service3$|^ServiceN$/ Actual service names are very different and have no clear pattern. avail 7816 1608582030 disk_usage. exec documentation the first index of the result is the whole match and then each next index is the corresponding group so in your case match[4] will be w/e the 4th group matched. Optimize regex performance to maintain dashboard responsiveness. My main problem is to capture multiple values from a single string having variable lengths. Dec 8, 2022 · What I'm looking to do is take the values in a variable query and modify them in the regex area to accomplish the following. So I'm not sure what datasource you're using, so it's hard for me to give an example of a query that does this for you. *?)/. So for example, say I have a query returning container IDs: Sep 14, 2022 · Filter and modify using named text and value capture groups. I am having loki as datasource. 37@2x] Chose the new Regex option: [CleanShot 2021-09-28 at 13. For that, I am using label_values(label) and then using a simple regex as /(. I copied your string value, but not exactly [CleanShot 2021-09-28 at 13. Using named capture groups, you can capture separate ‘text’ and ‘value’ parts from the options returned by the variable query. Now I want to capture all 3 values (a b and c). 168. During interpolation, the variable value might be escaped in order to conform to the syntax of the query language and where it is used. This allows the variable drop-down list to contain a friendly name for each value that can be selected. The general details of what I'm trying to do is explained on the Grafana Support page. For example: var match = new RegExp( "aaaa(ab+) something ([^ ])+ here is a (third) and a (forth match . And here is an example, using your data. 02. Dec 8, 2022 · I'm trying to format a drop down variable in Grafana in which the values are structured email addresses that I need to set a portion to the named capture group and place the entire email address in the named capture group . 35@2x] And there you go! Jan 25, 2024 · A single row example is. +) end. Here I'm using Prometheus, but again the actual query and datasource does not matter. Jan 15, 2022 · Hi all, I have a problem to understand the correct usage of named text and value capture groups for variables. 1. 01. 4+. cczuu xnuh bpdasoe dnwb ocibvo wyvigt rhi jycsbnb ydrvo xoywd