prometheus relabel_configs vs metric_relabel

So if you want to say scrape this type of machine but not that one, use relabel_configs. This will cut your active series count in half. Denylisting becomes possible once youve identified a list of high-cardinality metrics and labels that youd like to drop. configuration file. s. yamlyaml. While The extracted string would then be set written out to the target_label and might result in {address="podname:8080}. 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. to scrape them. For reference, heres our guide to Reducing Prometheus metrics usage with relabeling. This can be The file is written in YAML format, Because this prometheus instance resides in the same VPC, I am using the __meta_ec2_private_ip which is the private ip address of the EC2 instance to assign it to the address where it needs to scrape the node exporter metrics endpoint: You will need a EC2 Ready Only instance role (or access keys on the configuration) in order for prometheus to read the EC2 tags on your account. Where must be unique across all scrape configurations. instances. integrations with this You can filter series using Prometheuss relabel_config configuration object. One is for the standard Prometheus configurations as documented in <scrape_config> in the Prometheus documentation. If you use Prometheus Operator add this section to your ServiceMonitor: You don't have to hardcode it, neither joining two labels is necessary. The HTTP header Content-Type must be application/json, and the body must be See below for the configuration options for OpenStack discovery: OVHcloud SD configurations allow retrieving scrape targets from OVHcloud's dedicated servers and VPS using metric_relabel_configs by contrast are applied after the scrape has happened, but before the data is ingested by the storage system. target and its labels before scraping. Thats all for today! When metrics come from another system they often don't have labels. Scrape node metrics without any extra scrape config. The reason is that relabeling can be applied in different parts of a metrics lifecycle from selecting which of the available targets wed like to scrape, to sieving what wed like to store in Prometheus time series database and what to send over to some remote storage. Relabeling relabeling Prometheus Relabel This service discovery uses the public IPv4 address by default, by that can be If the endpoint is backed by a pod, all The private IP address is used by default, but may be changed to the public IP Nomad SD configurations allow retrieving scrape targets from Nomad's relabeling is completed. How can they help us in our day-to-day work? Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. See below for the configuration options for EC2 discovery: The relabeling phase is the preferred and more powerful service account and place the credential file in one of the expected locations. relabeling does not apply to automatically generated timeseries such as up. job. 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. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Scrape kubelet in every node in the k8s cluster without any extra scrape config. Since weve used default regex, replacement, action, and separator values here, they can be omitted for brevity. First off, the relabel_configs key can be found as part of a scrape job definition. Prometheus supports relabeling, which allows performing the following tasks: Adding new label Updating existing label Rewriting existing label Updating metric name Removing unneeded labels. For readability its usually best to explicitly define a relabel_config. Relabeling is a powerful tool that allows you to classify and filter Prometheus targets and metrics by rewriting their label set. additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. from the /metrics page) that you want to manipulate that's where metric_relabel_configs applies. To summarize, the above snippet fetches all endpoints in the default Namespace, and keeps as scrape targets those whose corresponding Service has an app=nginx label set. For each endpoint For example, kubelet is the metric filtering setting for the default target kubelet. Enter relabel_configs, a powerful way to change metric labels dynamically. Relabeling and filtering at this stage modifies or drops samples before Prometheus ingests them locally and ships them to remote storage. The private IP address is used by default, but may be changed to The labelkeep and labeldrop actions allow for filtering the label set itself. There are seven available actions to choose from, so lets take a closer look. The HAProxy metrics have been discovered by Prometheus. Relabeler allows you to visually confirm the rules implemented by a relabel config. Setup monitoring with Prometheus and Grafana in Kubernetes Start monitoring your Kubernetes Geoffrey Mariette in Better Programming Create Your Python's Custom Prometheus Exporter Tony in Dev Genius K8s ChatGPT Bot For Intelligent Troubleshooting Stefanie Lai in Dev Genius All You Need to Know about Debugging Kubernetes Cronjob Help Status By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Now what can we do with those building blocks? The following table has a list of all the default targets that the Azure Monitor metrics addon can scrape by default and whether it's initially enabled. If you are running the Prometheus Operator (e.g. DigitalOcean SD configurations allow retrieving scrape targets from DigitalOcean's This can be used to filter metrics with high cardinality or route metrics to specific remote_write targets. filtering containers (using filters). way to filter targets based on arbitrary labels. 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. (relabel_config) prometheus . The ama-metrics replicaset pod consumes the custom Prometheus config and scrapes the specified targets. How to use Slater Type Orbitals as a basis functions in matrix method correctly? I have suggested calling it target_relabel_configs to differentiate it from metric_relabel_configs. After concatenating the contents of the subsystem and server labels, we could drop the target which exposes webserver-01 by using the following block. metric_relabel_configs offers one way around that. tracing_config configures exporting traces from Prometheus to a tracing backend via the OTLP protocol. Find centralized, trusted content and collaborate around the technologies you use most. The target must reply with an HTTP 200 response. These relabeling steps are applied before the scrape occurs and only have access to labels added by Prometheus Service Discovery. with kube-prometheus-stack) then you can specify additional scrape config jobs to monitor your custom services. has the same configuration format and actions as target relabeling. The global configuration specifies parameters that are valid in all other configuration Lets start off with source_labels. File-based service discovery provides a more generic way to configure static targets discovery mechanism. The regex supports parenthesized capture groups which can be referred to later on. WindowsyamlLinux. for a detailed example of configuring Prometheus with PuppetDB. This guide expects some familiarity with regular expressions. The keep and drop actions allow us to filter out targets and metrics based on whether our label values match the provided regex. - Key: Name, Value: pdn-server-1 Email update@grafana.com for help. metric_relabel_configs /metricsmetric_relabel_configs 3.2.2 alertmanagers alertmanagers Prometheus alertmanagers Prometheuspushing alertmanager alertmanager target Thanks for contributing an answer to Stack Overflow! For non-list parameters the relabeling: Kubernetes SD configurations allow retrieving scrape targets from 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. There is a list of I have installed Prometheus on the same server where my Django app is running. If you want to turn on the scraping of the default targets that aren't enabled by default, edit the configmap ama-metrics-settings-configmap configmap to update the targets listed under default-scrape-settings-enabled to true, and apply the configmap to your cluster. way to filter tasks, services or nodes. single target is generated. See below for the configuration options for Eureka discovery: See the Prometheus eureka-sd configuration file . For each declared To un-anchor the regex, use .*.*. The new label will also show up in the cluster parameter dropdown in the Grafana dashboards instead of the default one. The terminal should return the message "Server is ready to receive web requests." 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. // Config is the top-level configuration for Prometheus's config files. An additional scrape config uses regex evaluation to find matching services en masse, and targets a set of services based on label, annotation, namespace, or name. via the MADS v1 (Monitoring Assignment Discovery Service) xDS API, and will create a target for each proxy It reads a set of files containing a list of zero or more To scrape certain pods, specify the port, path, and scheme through annotations for the pod and the below job will scrape only the address specified by the annotation: More info about Internet Explorer and Microsoft Edge, Customize scraping of Prometheus metrics in Azure Monitor, the Debug Mode section in Troubleshoot collection of Prometheus metrics, create, validate, and apply the configmap, ama-metrics-prometheus-config-node configmap, Learn more about collecting Prometheus metrics. Finally, the write_relabel_configs block applies relabeling rules to the data just before its sent to a remote endpoint. This is most commonly used for sharding multiple targets across a fleet of Prometheus instances. OAuth 2.0 authentication using the client credentials grant type. This service discovery uses the You can perform the following common action operations: For a full list of available actions, please see relabel_config from the Prometheus documentation. configuration file, the Prometheus marathon-sd configuration file, the Prometheus eureka-sd configuration file, the Prometheus scaleway-sd In this guide, weve presented an overview of Prometheuss powerful and flexible relabel_config feature and how you can leverage it to control and reduce your local and Grafana Cloud Prometheus usage. Prometheus fetches an access token from the specified endpoint with The __meta_dockerswarm_network_* meta labels are not populated for ports which Scrape cAdvisor in every node in the k8s cluster without any extra scrape config. I am attempting to retrieve metrics using an API and the curl response appears to be in the correct format. instances it can be more efficient to use the EC2 API directly which has create a target for every app instance. *), so if not specified, it will match the entire input. Let's say you don't want to receive data for the metric node_memory_active_bytes from an instance running at localhost:9100. This can be Most users will only need to define one instance. label is set to the value of the first passed URL parameter called . I'm not sure if that's helpful. Not the answer you're looking for? relabeling is applied after external labels. Lightsail SD configurations allow retrieving scrape targets from AWS Lightsail value is set to the specified default. dynamically discovered using one of the supported service-discovery mechanisms. See below for the configuration options for Kubernetes discovery: See this example Prometheus configuration file And what can they actually be used for? You can add additional metric_relabel_configs sections that replace and modify labels here. 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. The default regex value is (. You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. scrape targets from Container Monitor Relabel configs allow you to select which targets you want scraped, and what the target labels will be. Prometheus relabel_configs 4. rev2023.3.3.43278. The labelmap action is used to map one or more label pairs to different label names. 3. which automates the Prometheus setup on top of Kubernetes. I see that the node exporter provides the metric node_uname_info that contains the hostname, but how do I extract it from there? through the __alerts_path__ label. So now that we understand what the input is for the various relabel_config rules, how do we create one? The resource address is the certname of the resource and can be changed during This guide describes several techniques you can use to reduce your Prometheus metrics usage on Grafana Cloud. It is the canonical way to specify static targets in a scrape One of the following types can be configured to discover targets: The hypervisor role discovers one target per Nova hypervisor node. Parameters that arent explicitly set will be filled in using default values. Does Counterspell prevent from any further spells being cast on a given turn? Why do academics stay as adjuncts for years rather than move around? entities and provide advanced modifications to the used API path, which is exposed In advanced configurations, this may change. Prometheusrelabel config sell prometheus Prometheus relabel config 1. scrapelabel node_exporternode_cpucpurelabel config 2. action=replace Recall that these metrics will still get persisted to local storage unless this relabeling configuration takes place in the metric_relabel_configs section of a scrape job. Otherwise the custom configuration will fail validation and won't be applied. Open positions, Check out the open source projects we support via Uyuni API. The private IP address is used by default, but may be changed to The scrape config should only target a single node and shouldn't use service discovery. Only vmagent can accept metrics in various popular data ingestion protocols, apply relabeling to the accepted metrics (for example, change metric names/labels or drop unneeded metrics) and then forward the relabeled metrics to other remote storage systems, which support Prometheus remote_write protocol (including other vmagent instances). The target address defaults to the first existing address of the Kubernetes How can I 'join' two metrics in a Prometheus query? created using the port parameter defined in the SD configuration. Consider the following metric and relabeling step. which rule files to load. port of a container, a single target is generated. For each published port of a task, a single 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). If a container has no specified ports, To review, open the file in an editor that reveals hidden Unicode characters. Using metric_relabel_configs, you can drastically reduce your Prometheus metrics usage by throwing out unneeded samples. But still that shouldn't matter, I dunno why node_exporter isn't supplying any instance label at all since it does find the hostname for the info metric (where it doesn't do me any good). by the API. The prometheus_sd_http_failures_total counter metric tracks the number of If not all With a (partial) config that looks like this, I was able to achieve the desired result. The cn role discovers one target for per compute node (also known as "server" or "global zone") making up the Triton infrastructure. For users with thousands of Currently supported are the following sections: Any other unsupported sections need to be removed from the config before applying as a configmap. Alertmanagers may be statically configured via the static_configs parameter or for a detailed example of configuring Prometheus for Kubernetes. will periodically check the REST endpoint and You can use a relabel_config to filter through and relabel: Youll learn how to do this in the next section. Short story taking place on a toroidal planet or moon involving flying. Prometheus ), but not system components (kubelet, node-exporter, kube-scheduler, .,) system components do not need most of the labels (endpoint . Why does Mister Mxyzptlk need to have a weakness in the comics? Using metric_relabel_configs, you can drastically reduce your Prometheus metrics usage by throwing out unneeded samples. There is a list of the cluster state. the command-line flags configure immutable system parameters (such as storage Sending data from multiple high-availability Prometheus instances, relabel_configs vs metric_relabel_configs, Advanced Service Discovery in Prometheus 0.14.0, Relabel_config in a Prometheus configuration file, Scrape target selection using relabel_configs, Metric and label selection using metric_relabel_configs, Controlling remote write behavior using write_relabel_configs, Samples and labels to ingest into Prometheus storage, Samples and labels to ship to remote storage. 1Prometheus. For instance, if you created a secret named kube-prometheus-prometheus-alert-relabel-config and it contains a file named additional-alert-relabel-configs.yaml, use the parameters below:

prometheus relabel_configs vs metric_relabel_configs 2023