for a practical example on how to set up Uyuni Prometheus configuration. relabel_configs: - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape] action: keep regex: true // keep targets with label __meta_kubernetes_service_annotation_prometheus_io_scrape equals 'true', // which means the user added prometheus.io/scrape: true in the service's annotation. See below for the configuration options for Eureka discovery: See the Prometheus eureka-sd configuration file Email update@grafana.com for help. Next I tried metrics_relabel_configs but that doesn't seem to want to copy a label from a different metric, ie. Sorry, an error occurred. Heres a small list of common use cases for relabeling, and where the appropriate place is for adding relabeling steps. This is experimental and could change in the future. An example might make this clearer. For all targets discovered directly from the endpointslice list (those not additionally inferred Use the following to filter IN metrics collected for the default targets using regex based filtering. [prometheus URL]:9090/targets target endpoint Before relabeling __metrics_path__ label relabel relabel static config One use for this is to exclude time series that are too expensive to ingest. Yes, I know, trust me I don't like either but it's out of my control. interface. Our answer exist inside the node_uname_info metric which contains the nodename value. configuration file. value is set to the specified default. See below for the configuration options for Docker Swarm discovery: The relabeling phase is the preferred and more powerful Asking for help, clarification, or responding to other answers. First off, the relabel_configs key can be found as part of a scrape job definition. If the extracted value matches the given regex, then replacement gets populated by performing a regex replace and utilizing any previously defined capture groups. Otherwise the custom configuration will fail validation and won't be applied. However, its usually best to explicitly define these for readability. 5.6K subscribers in the PrometheusMonitoring community. If shipping samples to Grafana Cloud, you also have the option of persisting samples locally, but preventing shipping to remote storage. This may be changed with relabeling. Since the (. We drop all ports that arent named web. Additional helpful documentation, links, and articles: How to set up and visualize synthetic monitoring at scale with Grafana Cloud, Using Grafana Cloud to drive manufacturing plant efficiency. to Prometheus Users Thank you Simonm This is helpful, however, i found that under prometheus v2.10 you will need to use the following relabel_configs: - source_labels: [__address__] regex:. On the federation endpoint Prometheus can add labels When sending alerts we can alter alerts labels To drop a specific label, select it using source_labels and use a replacement value of "". If you're currently using Azure Monitor Container Insights Prometheus scraping with the setting monitor_kubernetes_pods = true, adding this job to your custom config will allow you to scrape the same pods and metrics. Prometheus relabeling to control which instances will actually be scraped. label is set to the job_name value of the respective scrape configuration. Using the write_relabel_config entry shown below, you can target the metric name using the __name__ label in combination with the instance name. This is often useful when fetching sets of targets using a service discovery mechanism like kubernetes_sd_configs, or Kubernetes service discovery. It may be a factor that my environment does not have DNS A or PTR records for the nodes in question. Why is there a voltage on my HDMI and coaxial cables? And if one doesn't work you can always try the other! This documentation is open-source. One of the following role types can be configured to discover targets: The node role discovers one target per cluster node with the address defaulting Basics; Curated Examples; Example Queries; Scrape Configs; Recording Rules; External Sources; Basics. The following rule could be used to distribute the load between 8 Prometheus instances, each responsible for scraping the subset of targets that end up producing a certain value in the [0, 7] range, and ignoring all others. I'm also loathe to fork it and have to maintain in parallel with upstream, I have neither the time nor the karma. Using relabeling at the target selection stage, you can selectively choose which targets and endpoints you want to scrape (or drop) to tune your metric usage. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . As an example, consider the following two metrics. Prometheus K8SYaml K8S In addition, the instance label for the node will be set to the node name How can I 'join' two metrics in a Prometheus query? The new label will also show up in the cluster parameter dropdown in the Grafana dashboards instead of the default one. Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. Prometheus fetches an access token from the specified endpoint with Consul setups, the relevant address is in __meta_consul_service_address. Thanks for reading, if you like my content, check out my website, read my newsletter or follow me at @ruanbekker on Twitter. See below for the configuration options for Lightsail discovery: Linode SD configurations allow retrieving scrape targets from Linode's For non-list parameters the Why do academics stay as adjuncts for years rather than move around? prometheus.yml This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Weve come a long way, but were finally getting somewhere. // Config is the top-level configuration for Prometheus's config files. If were using Prometheus Kubernetes SD, our targets would temporarily expose some labels such as: Labels starting with double underscores will be removed by Prometheus after relabeling steps are applied, so we can use labelmap to preserve them by mapping them to a different name. Labels are sets of key-value pairs that allow us to characterize and organize whats actually being measured in a Prometheus metric. If we provide more than one name in the source_labels array, the result will be the content of their values, concatenated using the provided separator. How do I align things in the following tabular environment? Relabel configs allow you to select which targets you want scraped, and what the target labels will be. Prometheus This guide expects some familiarity with regular expressions. I have suggested calling it target_relabel_configs to differentiate it from metric_relabel_configs. domain names which are periodically queried to discover a list of targets. The For all targets discovered directly from the endpoints list (those not additionally inferred So let's shine some light on these two configuration options. Finally, this configures authentication credentials and the remote_write queue. It is Prometheus relabel configs are notoriously badly documented, so here's how to do something simple that I couldn't find documented anywhere: How to add a label to all metrics coming from a specific scrape target. Alertmanagers may be statically configured via the static_configs parameter or can be more efficient to use the Docker API directly which has basic support for job. By default, for all the default targets, only minimal metrics used in the default recording rules, alerts, and Grafana dashboards are ingested as described in minimal-ingestion-profile. Open positions, Check out the open source projects we support configuration file. But what I found to actually work is the simple and so blindingly obvious that I didn't think to even try: I.e., simply applying a target label in the scrape config. configuration file. Latest Published: Jan 31, 2023 License: Apache-2.0 Imports: 18 Imported by: 2,025 Details Valid go.mod file Redistributable license Tagged version These are: A Prometheus configuration may contain an array of relabeling steps; they are applied to the label set in the order theyre defined in. The HAProxy metrics have been discovered by Prometheus. If you use quotes or backslashes in the regex, you'll need to escape them using a backslash. Once the targets have been defined, the metric_relabel_configs steps are applied after the scrape and allow us to select which series we would like to ingest into Prometheus storage. You can use a relabel rule like this one in your prometheus job desription: In the prometheus Service Discovery you can first check the correct name of your label. It A tls_config allows configuring TLS connections. Having to tack an incantation onto every simple expression would be annoying; figuring out how to build more complex PromQL queries with multiple metrics is another entirely. In our config, we only apply a node-exporter scrape config to instances which are tagged PrometheusScrape=Enabled, then we use the Name tag, and assign its value to the instance tag, and the similarly we assign the Environment tag value to the environment promtheus label value. Replace is the default action for a relabeling rule if we havent specified one; it allows us to overwrite the value of a single label by the contents of the replacement field. Email update@grafana.com for help. Consider the following metric and relabeling step. One of the following types can be configured to discover targets: The hypervisor role discovers one target per Nova hypervisor node. in the configuration file), which can also be changed using relabeling. interval and timeout. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. In this scenario, on my EC2 instances I have 3 tags: Prometheus keeps all other metrics. To learn more, see our tips on writing great answers. NodeLegacyHostIP, and NodeHostName. There is a small demo of how to use To learn more about the general format for a relabel_config block, please see relabel_config from the Prometheus docs. may contain a single * that matches any character sequence, e.g. . While However, in some IONOS Cloud API. server sends alerts to. This minimal relabeling snippet searches across the set of scraped labels for the instance_ip label. If a task has no published ports, a target per task is from underlying pods), the following labels are attached. this functionality. Labels starting with __ will be removed from the label set after target discovery endpoints. directly which has basic support for filtering nodes (currently by node write_relabel_configs is relabeling applied to samples before sending them Enter relabel_configs, a powerful way to change metric labels dynamically. See this example Prometheus configuration file by the API. metric_relabel_configs /metricsmetric_relabel_configs 3.2.2 alertmanagers alertmanagers Prometheus alertmanagers Prometheuspushing alertmanager alertmanager target Kuma SD configurations allow retrieving scrape target from the Kuma control plane. You can additionally define remote_write-specific relabeling rules here. How to use Slater Type Orbitals as a basis functions in matrix method correctly? If you are running the Prometheus Operator (e.g. Any label pairs whose names match the provided regex will be copied with the new label name given in the replacement field, by utilizing group references (${1}, ${2}, etc). metrics without this label. Avoid downtime. * action: drop metric_relabel_configs So the solution I used is to combine an existing value containing what we want (the hostnmame) with a metric from the node exporter. used by Finagle and For users with thousands of tasks it service account and place the credential file in one of the expected locations. entities and provide advanced modifications to the used API path, which is exposed The above snippet will concatenate the values stored in __meta_kubernetes_pod_name and __meta_kubernetes_pod_container_port_number. The regex is integrations with this Each target has a meta label __meta_url during the Note that adding an additional scrape . relabeling phase. rev2023.3.3.43278. tsdb lets you configure the runtime-reloadable configuration settings of the TSDB. Prometheus metric_relabel_configs . At a high level, a relabel_config allows you to select one or more source label values that can be concatenated using a separator parameter. Relabeling 4.1 . For now, Prometheus Operator adds following labels automatically: endpoint, instance, namespace, pod, and service. port of a container, a single target is generated. To review, open the file in an editor that reveals hidden Unicode characters. Now what can we do with those building blocks? Both of these methods are implemented through Prometheuss metric filtering and relabeling feature, relabel_config. They are applied to the label set of each target in order of their appearance For example, if the resource ID is /subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg-name/providers/Microsoft.ContainerService/managedClusters/clustername, the cluster label is clustername. Before scraping targets ; prometheus uses some labels as configuration When scraping targets, prometheus will fetch labels of metrics and add its own After scraping, before registering metrics, labels can be altered With recording rules But also . Prometheus Authors 2014-2023 | Documentation Distributed under CC-BY-4.0. RFC6763. . This piece of remote_write configuration sets the remote endpoint to which Prometheus will push samples. This feature allows you to filter through series labels using regular expressions and keep or drop those that match. This can be useful when local Prometheus storage is cheap and plentiful, but the set of metrics shipped to remote storage requires judicious curation to avoid excess costs. tracing_config configures exporting traces from Prometheus to a tracing backend via the OTLP protocol. configuration. Marathon SD configurations allow retrieving scrape targets using the Vultr SD configurations allow retrieving scrape targets from Vultr. RE2 regular expression. Relabeling is a powerful tool that allows you to classify and filter Prometheus targets and metrics by rewriting their label set. So if there are some expensive metrics you want to drop, or labels coming from the scrape itself (e.g. config package - github.com/prometheus/prometheus/config - Go Packages The highest tagged major version is v2 . Using the __meta_kubernetes_service_label_app label filter, endpoints whose corresponding services do not have the app=nginx label will be dropped by this scrape job. To allowlist metrics and labels, you should identify a set of core important metrics and labels that youd like to keep. filepath from which the target was extracted. relabeling is completed. See the Prometheus marathon-sd configuration file Grafana Labs uses cookies for the normal operation of this website. Brackets indicate that a parameter is optional. configuration file defines everything related to scraping jobs and their We could offer this as an alias, to allow config file transition for Prometheus 3.x. Parameters that arent explicitly set will be filled in using default values. valid JSON. Metric relabeling is applied to samples as the last step before ingestion. You can reduce the number of active series sent to Grafana Cloud in two ways: Allowlisting: This involves keeping a set of important metrics and labels that you explicitly define, and dropping everything else. it was not set during relabeling. is any valid I have installed Prometheus on the same server where my Django app is running. The difference between the phonemes /p/ and /b/ in Japanese. Prometheusrelabel config sell prometheus Prometheus relabel config 1. scrapelabel node_exporternode_cpucpurelabel config 2. action=replace Downloads. The configuration format is the same as the Prometheus configuration file. Blog | Training | Book | Privacy, relabel_configs vs metric_relabel_configs. The IAM credentials used must have the ec2:DescribeInstances permission to Scrape kubelet in every node in the k8s cluster without any extra scrape config. Or if youre using Prometheus Kubernetes service discovery you might want to drop all targets from your testing or staging namespaces. For example "test\'smetric\"s\"" and testbackslash\\*. The second relabeling rule adds {__keep="yes"} label to metrics with empty `mountpoint` label, e.g. metadata and a single tag). The last relabeling rule drops all the metrics without {__keep="yes"} label. determines the relabeling action to take: Care must be taken with labeldrop and labelkeep to ensure that metrics are The default value of the replacement is $1, so it will match the first capture group from the regex or the entire extracted value if no regex was specified. PrometheusGrafana. The __* labels are dropped after discovering the targets. Of course, we can do the opposite and only keep a specific set of labels and drop everything else. The cn role discovers one target for per compute node (also known as "server" or "global zone") making up the Triton infrastructure. for a detailed example of configuring Prometheus with PuppetDB. Prometheus needs to know what to scrape, and that's where service discovery and relabel_configs come in. and serves as an interface to plug in custom service discovery mechanisms. It has the same configuration format and actions as target relabeling. Prometheus queries: How to give a default label when it is missing? See below for the configuration options for Triton discovery: Eureka SD configurations allow retrieving scrape targets using the way to filter services or nodes for a service based on arbitrary labels. Each unique combination of key-value label pairs is stored as a new time series in Prometheus, so labels are crucial for understanding the datas cardinality and unbounded sets of values should be avoided as labels. You can extract a samples metric name using the __name__ meta-label. Open positions, Check out the open source projects we support A Prometheus configuration may contain an array of relabeling steps; they are applied to the label set in the order they're defined in. The account must be a Triton operator and is currently required to own at least one container. The extracted string would then be set written out to the target_label and might result in {address="podname:8080}. Note that the IP number and port used to scrape the targets is assembled as metric_relabel_configs relabel_configsreplace Prometheus K8S . relabeling: Kubernetes SD configurations allow retrieving scrape targets from To learn more about them, please see Prometheus Monitoring Mixins. Any relabel_config must have the same general structure: These default values should be modified to suit your relabeling use case. For example, the following block would set a label like {env="production"}, While, continuing with the previous example, this relabeling step would set the replacement value to my_new_label. To play around with and analyze any regular expressions, you can use RegExr. Refresh the page, check Medium 's site status,. Prometheus Relabling Using a standard prometheus config to scrape two targets: - ip-192-168-64-29.multipass:9100 - ip-192-168-64-30.multipass:9100 with this feature. The replacement field defaults to just $1, the first captured regex, so its sometimes omitted. This is generally useful for blackbox monitoring of a service. Let's say you don't want to receive data for the metric node_memory_active_bytes from an instance running at localhost:9100. The regex field expects a valid RE2 regular expression and is used to match the extracted value from the combination of the source_label and separator fields. Once Prometheus scrapes a target, metric_relabel_configs allows you to define keep, drop and replace actions to perform on scraped samples: This sample piece of configuration instructs Prometheus to first fetch a list of endpoints to scrape using Kubernetes service discovery (kubernetes_sd_configs). The following meta labels are available on all targets during relabeling: The labels below are only available for targets with role set to hcloud: The labels below are only available for targets with role set to robot: HTTP-based service discovery provides a more generic way to configure static targets