Prometheus relabel regex example. *" or cpu=~".

Prometheus relabel regex example Jan 17, 2019 · That's why I can't use relabel config across the job. In other words a character replace ('-' to The regex field contains a regular expression to match against the list found in source_labels. Here's how to use it to replace IP addresses with hostnames: Open your Prometheus configuration file (usually prometheus. May 16, 2022 · Please note that you must use metric_relabel_configs instead of relabel_configs if you want apply relabeling on the collected metrics. (At least it is accurate, as far as I can tell. May 30, 2022 · This is a quick demonstration on how to use prometheus relabel configs, when you have scenarios for when example, you want to use a part of your hostname and assign it to a prometheus label. port. The labeldrop action works like labelkeep, but drops a label rather than keeping it. If you want to drop a label with a particular value from the collected metric, then use the following relabeling rule at metric_relabel_configs section of the needed scrape_config: Jun 18, 2021 · Right now I'm scraping metrics from a Node Exporter. 3005. If that is a possible solution for you, I can post an answer how to do this. However, It is possible to add an additional label and use the regex in the relabel config of prometheus to get a label to group. *)", matching any source_labels. If you want to relabel the instance label to hostname, you can do this using the relabel_configs configuration in your prometheus. com/blog/2022/03/21/how-relabeling-in-prometheus-works/#labelmap. The app label must have the value example-application. Jul 31, 2018 · I have the exact same problem and didn't find a solution do do this in this stage (I guess it is not possible). Nov 9, 2022 · @juliusv I think if you "premassage" the regex it could work. Prometheus Relabel Config Example. *" or mode=~". It does so by replacing the labels for scraped data by regexes with relabel_configs. Jun 27, 2017 · This post explains how you can use Prometheus relabeling configuration to manipulate metrics to keep your storage clean and not pollute it with unnecessary data. *" or cpu=~". We do a thorough break down of these powerful configuration blocks with practical, real world examples. Sep 1, 2022 · I have a label crawled by Prometheus that contains hostnames but uses dashes as separators instead of dots. monitoring; prometheus; “$1” is regex for using the string in new label name, don’t change this Sep 2, 2022 · instance_identifier. I do not think it would be a breaking change as if someone already had the literal text ${__foo} in their regex, it would be an invalid regex. (The most notab. The prometheus. The modulus field contains the modulus to take off a hash of the concatenated source_labels. Use cases: Drop unnecessary The prometheus. In this guide I help demystify the often misunderstood relabel_configs and metric_relabel_configs in Prometheus to better monitor your website and APIs. Replace. Example service definition provided to consul agent: relabel_config和metric_relabel_configs常用配置 relabel_configs . . Here’s how you can set this up. Dec 9, 2024 · The regex field allows you to match and extract specific parts of label values using a RE2-compatible regular expression. *"} Basically i want my regex to be compared with all label values . – Sep 23, 2024 · The relabel_configs option in Prometheus allows you to manipulate labels before they are stored. Removing HA replica labels from alerts Feb 24, 2020 · I want to do a filter in prometheus based on all labels. *" target_label: "name" Note that the regex is defined with a string here, not a regex literal, so the first / is erroneous here. i-abc123. GitHub Gist: instantly share code, notes, and snippets. Jun 22, 2023 · Proposal In a relabel_config, the regex field supports any valid RE2 regular expression (docs). com Nov 18, 2024 · Relabeling in Prometheus is a powerful feature that allows you to modify labels in your metrics before they are stored. If no rules are defined or applicable to some metrics, then those metrics are forwarded as-is to each receiver passed in the component’s arguments. Using a standard prometheus config to scrape two targets: evaluation_interval: 15s. Let's look at some example use cases for the labelkeep action. yml file. RE2 regexp's don't support backreferences: RE2 disallows PCRE features that cannot be implemented efficiently using automata. * matches any text. It matches the result from step 1 against the provided regex. For example domain=www-example-com. Prometheus node exporter is registered as a service with consul agent with various tags. The Prometheus monitoring system and time series database. For example, the following relabeling rule drops all the label names starting with foo: - action: labeldrop regex: "foo. I'd like to drop time series that have this label and do not match a regular expression. // Remember, there are default values for each item if it's missing. The replace action substitutes a target label's value with a replacement value if the source label values match the regex. local The instance identifier can either be a word or two words with underscores or a word and a number with an underscore (e. *) target_label: environment replacement: production See full list on grafana. Example: - action: replace source_labels: [service] regex: (. It keeps only those labels that match. Add a relabel_configs block with the following structure: Mar 3, 2016 · The documentation for relabel_config is very clinical and hard to understand. Aug 9, 2019 · kind: Service apiVersion: v1 metadata: name: example-application labels: app: example-application spec: selector: app: example-application ports: - name: backend port: 8080 This Service object is discovered by a ServiceMonitor, which selects in the same way. example. local and test_2. Say if my labels in prometheus are instance, cpu, mode for the query node_cpu_seconds_total, i want to do an operation like, input = ". Locate the scrape_configs section for the job you want to relabel. relabel component rewrites the label set of each metric passed along to the exported receiver by applying one or more relabeling rules. (In fact, relabel_configs doesn't even have a paragraph. It works by matching against the combined value extracted from the source_labels (joined by the separator, if used). Search the regex for ${__identifier} from the list of all defined __ (loop through all __) and replace it in the regex. yml). ) In both relabel_configs and metric_relabel_configs some real-world examples would go a long way. A useful thing to do when using horizontal sharding of Prometheus instances. instance-id. TLDR; regex: "__meta_ec2_tag_(. I'm trying to replace that with a label containing dot-separated values, e. *" node_cpu_seconds_total{instance=~". relabel_configs用于在Prometheus从目标抓取数据时，重新定义和调整标签。它在数据被抓取并被存储之前生效，主要用于动态发现目标和调整标签格式。 Aug 16, 2022 · The default separator can be changed if needed via separator option in the relabel config. +" This example selects only those time series with the http_requests_total metric name that also have the job label set to prometheus and their group label set to canary: http_requests_total{job="prometheus",group="canary"} It is also possible to negatively match a label value, or to match label values against regular expressions. The name of the label to drop must be specified as a regular expression in regex. Some of the metrics which the Node Exporters exports have a mountpoint label. *)" replacement: "$1" Nov 6, 2023 · Examples of Prometheus Relabel Action 1. local). Mar 9, 2020 · I found out that Prometheus now has a labelmap option for relabel_configs that does this : https://grafana. Nov 5, 2020 · Sometimes it is needed to remove certain labels before storing metrics in Prometheus or VictoriaMetrics. Jun 13, 2022 · relabel_configs: - source_labels: [path] regex: "test/name/([^/]*). com but can't find a way to do that. turn it into domain=www. - prometheus/prometheus // For all the confusing Prometheus configuration and // regular expressions, // explained in examples. 3000. The default is "(. See this article for details. g. i-rewq873. Jun 3, 2017 · Setup. The regex is automatically anchored to the beginning and the end of the matching string, so there is no need in specifying ^ and $ anchors in the regex. Next, *. test. It matches the regular expression in regex against all label names. is a user error, . *abc. I'm trying to get parts of the hostname into their own labels with: Apr 18, 2018 · This solution stores data at scrape-time with the desired labels, no need for funny PromQL queries or hardcoded hacks. This can be done with action: labeldrop. Use case examples. Jan 8, 2021 · labels: # Prometheus Swarm - prometheus-job=myJobsName - prometheus-port=3000 - prometheus-scrape-network=network1 - prometheus-env=production The second line checks that the label equals network1;network1 so it will filter out the "duplicate" target on the other network (because the other one will be equals to network2;network1 ). service. yfjtivl cvlw zceafkxx wvwnb ffwsbml zda omuur uawqdxrt rpknze gcqpxe