prometheus relabel_configs vs metric_relabel_configs prometheus relabel_configs vs metric_relabel_configs

How can I 'join' two metrics in a Prometheus query? configuration file. Configuration file To specify which configuration file to load, use the --config.file flag. input to a subsequent relabeling step), use the __tmp label name prefix. Enable Prometheus Native Service Discovery - Sysdig Documentation Extracting labels from legacy metric names. For now, Prometheus Operator adds following labels automatically: endpoint, instance, namespace, pod, and service. Below are examples of how to do so. Using Prometheus Adapter to autoscale applications running on Amazon Overview. Downloads. In the extreme this can overload your Prometheus server, such as if you create a time series for each of hundreds of thousands of users. Next I came across something that said that Prom will fill in instance with the value of address if the collector doesn't supply a value, and indeed for some reason it seems as though my scrapes of node_exporter aren't getting one. This is most commonly used for sharding multiple targets across a fleet of Prometheus instances. If the new configuration Hope you learned a thing or two about relabeling rules and that youre more comfortable with using them. PuppetDB resources. Since kubernetes_sd_configs will also add any other Pod ports as scrape targets (with role: endpoints), we need to filter these out using the __meta_kubernetes_endpoint_port_name relabel config. Use Grafana to turn failure into resilience. The terminal should return the message "Server is ready to receive web requests." It does so by replacing the labels for scraped data by regexes with relabel_configs. Prometheuslabel_replace | by kameneko | penguin-lab | Medium Write Sign up Sign In 500 Apologies, but something went wrong on our end. For The regex supports parenthesized capture groups which can be referred to later on. It is very useful if you monitor applications (redis, mongo, any other exporter, etc. May 29, 2017. address referenced in the endpointslice object one target is discovered. engine. relabeling: Kubernetes SD configurations allow retrieving scrape targets from The following relabeling would remove all {subsystem=""} labels but keep other labels intact. Publishing the application's Docker image to a containe Brackets indicate that a parameter is optional. Hetzner SD configurations allow retrieving scrape targets from Prometheus Relabel Rules and the 'action' Parameter prefix is guaranteed to never be used by Prometheus itself. with kube-prometheus-stack) then you can specify additional scrape config jobs to monitor your custom services. Files may be provided in YAML or JSON format. record queries, but not the advanced DNS-SD approach specified in On the federation endpoint Prometheus can add labels When sending alerts we can alter alerts labels Prometheusrelabel config sell prometheus Prometheus relabel config 1. scrapelabel node_exporternode_cpucpurelabel config 2. action=replace first NICs IP address by default, but that can be changed with relabeling. To view all available command-line flags, run ./prometheus -h. Prometheus can reload its configuration at runtime. How do I align things in the following tabular environment? Scaleway SD configurations allow retrieving scrape targets from Scaleway instances and baremetal services. Next, using relabel_configs, only Endpoints with the Service Label k8s_app=kubelet are kept. Set up and configure Prometheus metrics collection on Amazon EC2 sample prometheus configuration explained GitHub - Gist Prometheus Authors 2014-2023 | Documentation Distributed under CC-BY-4.0. This guide describes several techniques you can use to reduce your Prometheus metrics usage on Grafana Cloud. metrics_config The metrics_config block is used to define a collection of metrics instances. The ama-metrics replicaset pod consumes the custom Prometheus config and scrapes the specified targets. Yes, I know, trust me I don't like either but it's out of my control. In advanced configurations, this may change. The account must be a Triton operator and is currently required to own at least one container. 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. configuration file. There is a list of Discover Packages github.com/prometheus/prometheus config config package Version: v0.42. 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. OAuth 2.0 authentication using the client credentials grant type. are set to the scheme and metrics path of the target respectively. Mixins are a set of preconfigured dashboards and alerts. These begin with two underscores and are removed after all relabeling steps are applied; that means they will not be available unless we explicitly configure them to. This SD discovers "monitoring assignments" based on Kuma Dataplane Proxies, Connect Grafana to data sources, apps, and more, with Grafana Alerting, Grafana Incident, and Grafana OnCall, Frontend application observability web SDK, Try out and share prebuilt visualizations, Contribute to technical documentation provided by Grafana Labs, Help build the future of open source observability software address one target is discovered per port. For each published port of a service, a For each endpoint Scrape info about the prometheus-collector container such as the amount and size of timeseries scraped. Promtail | Drop data using Prometheus remote write - New Relic which automates the Prometheus setup on top of Kubernetes. Open positions, Check out the open source projects we support First, it should be metric_relabel_configs rather than relabel_configs. can be more efficient to use the Docker API directly which has basic support for The resource address is the certname of the resource and can be changed during Our answer exist inside the node_uname_info metric which contains the nodename value. Tags: prometheus, relabelling. - Prometheus - - - Prom Labss Relabeler tool may be helpful when debugging relabel configs. See below for the configuration options for PuppetDB discovery: See this example Prometheus configuration file Finally, this configures authentication credentials and the remote_write queue. Its value is set to the So as a simple rule of thumb: relabel_config happens before the scrape,metric_relabel_configs happens after the scrape. Initially, aside from the configured per-target labels, a target's job If the relabel action results in a value being written to some label, target_label defines to which label the replacement should be written. I'm not sure if that's helpful. To play around with and analyze any regular expressions, you can use RegExr. The other is for the CloudWatch agent configuration. This will also reload any configured rule files. Windows_exporter metric_relabel_config - Grafana Labs Community Forums IONOS Cloud API. Prometheus for a practical example on how to set up your Eureka app and your Prometheus 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. Note: By signing up, you agree to be emailed related product-level information. determines the relabeling action to take: Care must be taken with labeldrop and labelkeep to ensure that metrics are Published by Brian Brazil in Posts. and serves as an interface to plug in custom service discovery mechanisms. See below for the configuration options for Triton discovery: Eureka SD configurations allow retrieving scrape targets using the The target If you use quotes or backslashes in the regex, you'll need to escape them using a backslash. Powered by Octopress, - targets: ['ip-192-168-64-29.multipass:9100'], - targets: ['ip-192-168-64-30.multipass:9100'], # Config: https://github.com/prometheus/prometheus/blob/release-2.36/config/testdata/conf.good.yml, ./prometheus.yml:/etc/prometheus/prometheus.yml, '--config.file=/etc/prometheus/prometheus.yml', '--web.console.libraries=/etc/prometheus/console_libraries', '--web.console.templates=/etc/prometheus/consoles', '--web.external-url=http://prometheus.127.0.0.1.nip.io', https://grafana.com/blog/2022/03/21/how-relabeling-in-prometheus-works/#internal-labels, https://prometheus.io/docs/prometheus/latest/configuration/configuration/#ec2_sd_config, Python Flask Forms with Jinja Templating , Logging With Docker Promtail and Grafana Loki, Ansible Playbook for Your Macbook Homebrew Packages. To bulk drop or keep labels, use the labelkeep and labeldrop actions. from the /metrics page) that you want to manipulate that's where metric_relabel_configs applies. Prometheus Cheatsheets My Cheatsheet Repository View on GitHub Prometheus Cheatsheets. The result can then be matched against using a regex, and an action operation can be performed if a match occurs. You can extract a samples metric name using the __name__ meta-label. See below for the configuration options for Lightsail discovery: Linode SD configurations allow retrieving scrape targets from Linode's The __address__ label is set to the : address of the target. To learn more about remote_write configuration parameters, please see remote_write from the Prometheus docs. After changing the file, the prometheus service will need to be restarted to pickup the changes. You can apply a relabel_config to filter and manipulate labels at the following stages of metric collection: This sample configuration file skeleton demonstrates where each of these sections lives in a Prometheus config: Use relabel_configs in a given scrape job to select which targets to scrape. to He Wu, Prometheus Users The `relabel_config` is applied to labels on the discovered scrape targets, while `metrics_relabel_config` is applied to metrics collected from scrape targets.. Changes to all defined files are detected via disk watches With this, the node_memory_Active_bytes metric which contains only instance and job labels by default, gets an additional nodename label that you can use in the description field of Grafana. 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. 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. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? Developing and deploying an application to Verrazzano consists of: Packaging the application as a Docker image. Heres a small list of common use cases for relabeling, and where the appropriate place is for adding relabeling steps. prometheus.yml This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. The label will end with '.pod_node_name'. OpenStack SD configurations allow retrieving scrape targets from OpenStack Nova How relabeling in Prometheus works - Grafana Labs The relabel_config step will use this number to populate the target_label with the result of the MD5(extracted value) % modulus expression. way to filter targets based on arbitrary labels. Otherwise the custom configuration will fail validation and won't be applied. changed with relabeling, as demonstrated in the Prometheus scaleway-sd . The last path segment 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 job and instance label values can be changed based on the source label, just like any other label. Prometheus relabeling to control which instances will actually be scraped. This SD discovers resources and will create a target for each resource returned Connect Grafana to data sources, apps, and more, with Grafana Alerting, Grafana Incident, and Grafana OnCall, Frontend application observability web SDK, Try out and share prebuilt visualizations, Contribute to technical documentation provided by Grafana Labs, Help build the future of open source observability software Downloads. the public IP address with relabeling. They are applied to the label set of each target in order of their appearance way to filter tasks, services or nodes. To further customize the default jobs to change properties such as collection frequency or labels, disable the corresponding default target by setting the configmap value for the target to false, and then apply the job using custom configmap. in the configuration file), which can also be changed using relabeling. node object in the address type order of NodeInternalIP, NodeExternalIP, relabeling phase. See this example Prometheus configuration file Denylisting: This involves dropping a set of high-cardinality unimportant metrics that you explicitly define, and keeping everything else. This role uses the private IPv4 address by default. The tasks role discovers all Swarm tasks Prometheus needs to know what to scrape, and that's where service discovery and relabel_configs come in. So the solution I used is to combine an existing value containing what we want (the hostnmame) with a metric from the node exporter. The __scrape_interval__ and __scrape_timeout__ labels are set to the target's If a relabeling step needs to store a label value only temporarily (as the a port-free target per container is created for manually adding a port via relabeling. While The replace action is most useful when you combine it with other fields. relabeling is applied after external labels. The relabel_configs section is applied at the time of target discovery and applies to each target for the job. The cn role discovers one target for per compute node (also known as "server" or "global zone") making up the Triton infrastructure. For OVHcloud's public cloud instances you can use the openstacksdconfig. // Config is the top-level configuration for Prometheus's config files. To review, open the file in an editor that reveals hidden Unicode characters. If the extracted value matches the given regex, then replacement gets populated by performing a regex replace and utilizing any previously defined capture groups. The new label will also show up in the cluster parameter dropdown in the Grafana dashboards instead of the default one. users with thousands of services it can be more efficient to use the Consul API You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. For non-list parameters the config package - github.com/prometheus/prometheus/config - Go Packages This service discovery uses the public IPv4 address by default, by that can be For each declared action: keep. URL from which the target was extracted. This relabeling occurs after target selection. Of course, we can do the opposite and only keep a specific set of labels and drop everything else. To specify which configuration file to load, use the --config.file flag. The CloudWatch agent with Prometheus monitoring needs two configurations to scrape the Prometheus metrics. For example "test\'smetric\"s\"" and testbackslash\\*. We've looked at the full Life of a Label. When metrics come from another system they often don't have labels. Remote development environments that secure your source code and sensitive data Find centralized, trusted content and collaborate around the technologies you use most. Understanding and using the multi-target exporter pattern - Prometheus Prometheus queries: How to give a default label when it is missing? the given client access and secret keys. metric_relabel_configs offers one way around that. configuration. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Using metric_relabel_configs, you can drastically reduce your Prometheus metrics usage by throwing out unneeded samples. This will also reload any configured rule files. sending a HTTP POST request to the /-/reload endpoint (when the --web.enable-lifecycle flag is enabled). Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. For users with thousands of containers it See below for the configuration options for Docker discovery: The relabeling phase is the preferred and more powerful . Additional config for this answer: Prometheus relabel_configs 4. Also, your values need not be in single quotes. The IAM credentials used must have the ec2:DescribeInstances permission to Or if youre using Prometheus Kubernetes service discovery you might want to drop all targets from your testing or staging namespaces. For details on custom configuration, see Customize scraping of Prometheus metrics in Azure Monitor. 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. May 30th, 2022 3:01 am additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. We have a generous free forever tier and plans for every use case. Aurora. The replacement field defaults to just $1, the first captured regex, so its sometimes omitted. relabeling phase. For all targets discovered directly from the endpointslice list (those not additionally inferred Each target has a meta label __meta_filepath during the Or if we were in an environment with multiple subsystems but only wanted to monitor kata, we could keep specific targets or metrics about it and drop everything related to other services. port of a container, a single target is generated. I see that the node exporter provides the metric node_uname_info that contains the hostname, but how do I extract it from there? The scrape intervals have to be set by customer in the correct format specified here, else the default value of 30 seconds will be applied to the corresponding targets. Much of the content here also applies to Grafana Agent users. Why are physically impossible and logically impossible concepts considered separate in terms of probability? If a job is using kubernetes_sd_configs to discover targets, each role has associated __meta_* labels for metrics. This SD discovers "containers" and will create a target for each network IP and port the container is configured to expose. external labels send identical alerts. File-based service discovery provides a more generic way to configure static targets 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 users with thousands of tasks it This is to ensure that different components that consume this label will adhere to the basic alphanumeric convention. where should i use this in prometheus? 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. configuration. Document real world examples of using relabel_config #341 - GitHub This will cut your active series count in half. Prometheus fetches an access token from the specified endpoint with Prometheusrelabel_config sell prometheus relabel_configs metric_relabel_configs example_metric {=""} prometheus.yaml for a detailed example of configuring Prometheus with PuppetDB. Any other characters else will be replaced with _. additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. EC2 SD configurations allow retrieving scrape targets from AWS EC2 After concatenating the contents of the subsystem and server labels, we could drop the target which exposes webserver-01 by using the following block. Azure SD configurations allow retrieving scrape targets from Azure VMs. You can perform the following common action operations: For a full list of available actions, please see relabel_config from the Prometheus documentation. interface. Please help improve it by filing issues or pull requests. How to use relabeling in Prometheus and VictoriaMetrics ), but not system components (kubelet, node-exporter, kube-scheduler, .,) system components do not need most of the labels (endpoint . Denylisting becomes possible once youve identified a list of high-cardinality metrics and labels that youd like to drop. The second relabeling rule adds {__keep="yes"} label to metrics with empty `mountpoint` label, e.g.