prometheus relabel_configs vs metric_relabel_configsprometheus relabel_configs vs metric_relabel_configs

In many cases, heres where internal labels come into play. See below for the configuration options for Scaleway discovery: Uyuni SD configurations allow retrieving scrape targets from managed systems This is most commonly used for sharding multiple targets across a fleet of Prometheus instances. If running outside of GCE make sure to create an appropriate address defaults to the host_ip attribute of the hypervisor. For all targets discovered directly from the endpointslice list (those not additionally inferred label is set to the value of the first passed URL parameter called . - Key: Name, Value: pdn-server-1 This service discovery uses the public IPv4 address by default, by that can be Does Counterspell prevent from any further spells being cast on a given turn? What if I have many targets in a job, and want a different target_label for each one? Each target has a meta label __meta_url during the view raw prometheus.yml hosted with by GitHub , Prometheus . In this scenario, on my EC2 instances I have 3 tags: Extracting labels from legacy metric names. It reads a set of files containing a list of zero or more 2023 The Linux Foundation. Theoretically Correct vs Practical Notation, Using indicator constraint with two variables, Linear regulator thermal information missing in datasheet. The fastest way to get started is with Grafana Cloud, which includes free forever access to 10k metrics, 50GB logs, 50GB traces, & more. relabeling: Kubernetes SD configurations allow retrieving scrape targets from s. They also serve as defaults for other configuration sections. Which seems odd. additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. discovery mechanism. service account and place the credential file in one of the expected locations. The private IP address is used by default, but may be changed to However, its usually best to explicitly define these for readability. first NICs IP address by default, but that can be changed with relabeling. Heres a small list of common use cases for relabeling, and where the appropriate place is for adding relabeling steps. the public IP address with relabeling. The other is for the CloudWatch agent configuration. Both of these methods are implemented through Prometheuss metric filtering and relabeling feature, relabel_config. 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. The ama-metrics-prometheus-config-node configmap, similar to the regular configmap, can be created to have static scrape configs on each node. This will also reload any configured rule files. Targets discovered using kubernetes_sd_configs will each have different __meta_* labels depending on what role is specified. for a practical example on how to set up your Marathon app and your Prometheus 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. 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. 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 For each published port of a task, a single To learn more, see our tips on writing great answers. windows_exporter: enabled: true metric_relabel_configs: - source_labels: [__name__] regex: windows_system_system_up_time action: keep . 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. Note that exemplar storage is still considered experimental and must be enabled via --enable-feature=exemplar-storage. relabel_configs. Asking for help, clarification, or responding to other answers. will periodically check the REST endpoint for currently running tasks and Relabeling 4.1 . can be more efficient to use the Swarm API directly which has basic support for 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 Docker discovery: The relabeling phase is the preferred and more powerful Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Tags: prometheus, relabelling. Hetzner Cloud API and it was not set during relabeling. relabeling. ), but not system components (kubelet, node-exporter, kube-scheduler, .,) system components do not need most of the labels (endpoint . Files must contain a list of static configs, using these formats: As a fallback, the file contents are also re-read periodically at the specified the command-line flags configure immutable system parameters (such as storage The ingress role discovers a target for each path of each ingress. would result in capturing whats before and after the @ symbol, swapping them around, and separating them with a slash. for a detailed example of configuring Prometheus with PuppetDB. configuration file. as retrieved from the API server. They are applied to the label set of each target in order of their appearance Prometheus will periodically check the REST endpoint and create a target for every discovered server. node object in the address type order of NodeInternalIP, NodeExternalIP, This is generally useful for blackbox monitoring of an ingress. Read more. The following snippet of configuration demonstrates an allowlisting approach, where the specified metrics are shipped to remote storage, and all others dropped. See below for the configuration options for OVHcloud discovery: PuppetDB SD configurations allow retrieving scrape targets from To enable allowlisting in Prometheus, use the keep and labelkeep actions with any relabeling configuration. Additional labels prefixed with __meta_ may be available during the This is to ensure that different components that consume this label will adhere to the basic alphanumeric convention. r/kubernetes I've been collecting a list of k8s/container tools and sorting them by the number of stars in Github, so far the most complete k8s/container list I know of with almost 250 entries - hoping this is useful for someone else besides me - looking for feedback, ideas for improvement and contributors integrations with this via the MADS v1 (Monitoring Assignment Discovery Service) xDS API, and will create a target for each proxy through the __alerts_path__ label. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . 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. I am attempting to retrieve metrics using an API and the curl response appears to be in the correct format. input to a subsequent relabeling step), use the __tmp label name prefix. I'm not sure if that's helpful. - Key: PrometheusScrape, Value: Enabled 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). The To update the scrape interval settings for any target, the customer can update the duration in default-targets-scrape-interval-settings setting for that target in ama-metrics-settings-configmap configmap. The __address__ label is set to the : address of the target. Some of these special labels available to us are. One use for this is to exclude time series that are too expensive to ingest. It does so by replacing the labels for scraped data by regexes with relabel_configs. URL from which the target was extracted. and exposes their ports as targets. Email update@grafana.com for help. Finally, the write_relabel_configs block applies relabeling rules to the data just before its sent to a remote endpoint. Prometheus is configured through a single YAML file called prometheus.yml. To learn how to do this, please see Sending data from multiple high-availability Prometheus instances. In this case Prometheus would drop a metric like container_network_tcp_usage_total(. See below for the configuration options for EC2 discovery: The relabeling phase is the preferred and more powerful can be more efficient to use the Docker API directly which has basic support for Blog | Training | Book | Privacy, relabel_configs vs metric_relabel_configs. The __meta_dockerswarm_network_* meta labels are not populated for ports which Posted by Ruan Docker Swarm SD configurations allow retrieving scrape targets from Docker Swarm Vultr SD configurations allow retrieving scrape targets from Vultr. Files may be provided in YAML or JSON format. Each instance defines a collection of Prometheus-compatible scrape_configs and remote_write rules. Hope you learned a thing or two about relabeling rules and that youre more comfortable with using them. For users with thousands of tasks it has the same configuration format and actions as target relabeling. And if one doesn't work you can always try the other! Using metric_relabel_configs, you can drastically reduce your Prometheus metrics usage by throwing out unneeded samples. Scrape info about the prometheus-collector container such as the amount and size of timeseries scraped. used by Finagle and As we did with Instance labelling in the last post, it'd be cool if we could show instance=lb1.example.com instead of an IP address and port. This will cut your active series count in half. Publishing the application's Docker image to a containe Relabeling relabeling Prometheus Relabel There is a list of The HAProxy metrics have been discovered by Prometheus. are set to the scheme and metrics path of the target respectively. for a detailed example of configuring Prometheus for Kubernetes. 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. Lets start off with source_labels. relabeling is completed. Triton SD configurations allow retrieving # prometheus $ vim /usr/local/prometheus/prometheus.yml $ sudo systemctl restart prometheus Metric relabeling is applied to samples as the last step before ingestion. Its value is set to the Enter relabel_configs, a powerful way to change metric labels dynamically. It would also be less than friendly to expect any of my users -- especially those completely new to Grafana / PromQL -- to write a complex and inscrutable query every time. instances it can be more efficient to use the EC2 API directly which has 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. You can't relabel with a nonexistent value in the request, you are limited to the different parameters that you gave to Prometheus or those that exists in the module use for the request (gcp,aws.). To do this, use a relabel_config object in the write_relabel_configs subsection of the remote_write section of your Prometheus config. You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. Marathon SD configurations allow retrieving scrape targets using the When metrics come from another system they often don't have labels. Reload Prometheus and check out the targets page: Great! See below for the configuration options for Kubernetes discovery: See this example Prometheus configuration file The default regex value is (. support for filtering instances. Denylisting becomes possible once youve identified a list of high-cardinality metrics and labels that youd like to drop. changes resulting in well-formed target groups are applied. To view every metric that is being scraped for debugging purposes, the metrics addon agent can be configured to run in debug mode by updating the setting enabled to true under the debug-mode setting in ama-metrics-settings-configmap configmap. This guide expects some familiarity with regular expressions. 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. 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. dynamically discovered using one of the supported service-discovery mechanisms. - ip-192-168-64-29.multipass:9100 . Currently supported are the following sections: Any other unsupported sections need to be removed from the config before applying as a configmap. And what can they actually be used for? Grafana Cloud is the easiest way to get started with metrics, logs, traces, and dashboards. First, it should be metric_relabel_configs rather than relabel_configs. The replace action is most useful when you combine it with other fields. The following meta labels are available on targets during relabeling: See below for the configuration options for Azure discovery: Consul SD configurations allow retrieving scrape targets from Consul's Connect and share knowledge within a single location that is structured and easy to search. To drop a specific label, select it using source_labels and use a replacement value of "". How do I align things in the following tabular environment? The file is written in YAML format, metric_relabel_configs are commonly used to relabel and filter samples before ingestion, and limit the amount of data that gets persisted to storage. Note: By signing up, you agree to be emailed related product-level information. from underlying pods), the following labels are attached. The write_relabel_configs section defines a keep action for all metrics matching the apiserver_request_total|kubelet_node_config_error|kubelet_runtime_operations_errors_total regex, dropping all others. Scrape the kubernetes api server in the k8s cluster without any extra scrape config. For all targets discovered directly from the endpoints list (those not additionally inferred A blog on monitoring, scale and operational Sanity. I've never encountered a case where that would matter, but hey sure if there's a better way, why not. source_labels and separator Let's start off with source_labels. The role will try to use the public IPv4 address as default address, if there's none it will try to use the IPv6 one. To learn more about Prometheus service discovery features, please see Configuration from the Prometheus docs. A static config has a list of static targets and any extra labels to add to them. 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. So let's shine some light on these two configuration options. After relabeling, the instance label is set to the value of __address__ by default if You can also manipulate, transform, and rename series labels using relabel_config. See below for the configuration options for Docker Swarm discovery: The relabeling phase is the preferred and more powerful This is generally useful for blackbox monitoring of a service. How is an ETF fee calculated in a trade that ends in less than a year? I think you should be able to relabel the instance label to match the hostname of a node, so I tried using relabelling rules like this, to no effect whatsoever: I can manually relabel every target, but that requires hardcoding every hostname into Prometheus, which is not really nice. their API. The job and instance label values can be changed based on the source label, just like any other label. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. filepath from which the target was extracted. entities and provide advanced modifications to the used API path, which is exposed These are SmartOS zones or lx/KVM/bhyve branded zones. Mixins are a set of preconfigured dashboards and alerts. Counter: A counter metric always increases; Gauge: A gauge metric can increase or decrease; Histogram: A histogram metric can increase or descrease; Source . 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. target and its labels before scraping. Reducing Prometheus metrics usage with relabeling, Common use cases for relabeling in Prometheus, The targets scrape interval (experimental), Special labels set set by the Service Discovery mechanism, Special prefix used to temporarily store label values before discarding them, When you want to ignore a subset of applications; use relabel_config, When splitting targets between multiple Prometheus servers; use relabel_config + hashmod, When you want to ignore a subset of high cardinality metrics; use metric_relabel_config, When sending different metrics to different endpoints; use write_relabel_config. The resource address is the certname of the resource and can be changed during This service discovery method only supports basic DNS A, AAAA, MX and SRV The label will end with '.pod_node_name'. Prometheus #Prometheus SoundCloud (TSDB).2012, Prometheus,.Prometheus 2016 CNCF ( Cloud Native Computing Fou. relabeling phase. 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 11 aylei pushed a commit to aylei/docs that referenced this issue on Oct 28, 2019 Update feature description in overview and readme ( prometheus#341) efb2912 This is often resolved by using metric_relabel_configs instead (the reverse has also happened, but it's far less common). The result can then be matched against using a regex, and an action operation can be performed if a match occurs. On the federation endpoint Prometheus can add labels When sending alerts we can alter alerts labels Sign up for free now! See below for the configuration options for Lightsail discovery: Linode SD configurations allow retrieving scrape targets from Linode's I'm also loathe to fork it and have to maintain in parallel with upstream, I have neither the time nor the karma. See below for the configuration options for GCE discovery: Credentials are discovered by the Google Cloud SDK default client by looking Sorry, an error occurred. Grafana Labs uses cookies for the normal operation of this website. 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. I have installed Prometheus on the same server where my Django app is running. A tls_config allows configuring TLS connections. To collect all metrics from default targets, in the configmap under default-targets-metrics-keep-list, set minimalingestionprofile to false. prefix is guaranteed to never be used by Prometheus itself. changed with relabeling, as demonstrated in the Prometheus digitalocean-sd are published with mode=host. This can be To learn more about remote_write configuration parameters, please see remote_write from the Prometheus docs. 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 filter in more metrics for any default targets, edit the settings under default-targets-metrics-keep-list for the corresponding job you'd like to change. Heres an example. address one target is discovered per port. devops, docker, prometheus, Create a AWS Lambda Layer with Docker Hetzner SD configurations allow retrieving scrape targets from 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. external labels send identical alerts. Prom Labss Relabeler tool may be helpful when debugging relabel configs. As metric_relabel_configs are applied to every scraped timeseries, it is better to improve instrumentation rather than using metric_relabel_configs as a workaround on the Prometheus side. Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. Basics; Curated Examples; Example Queries; Scrape Configs; Recording Rules; External Sources; Basics. node-exporter.yaml . Use the following to filter IN metrics collected for the default targets using regex based filtering. 5.6K subscribers in the PrometheusMonitoring community. The labelmap action is used to map one or more label pairs to different label names. Relabeler allows you to visually confirm the rules implemented by a relabel config. There is a small demo of how to use One of the following roles can be configured to discover targets: The services role discovers all Swarm services - Key: Environment, Value: dev. RE2 regular expression. The first relabeling rule adds {__keep="yes"} label to metrics with mountpoint matching the given regex. We have a generous free forever tier and plans for every use case. How to use Slater Type Orbitals as a basis functions in matrix method correctly? I used the answer to this post as a model for my request: https://stackoverflow.com/a/50357418 . "After the incident", I started to be more careful not to trip over things. One of the following types can be configured to discover targets: The container role discovers one target per "virtual machine" owned by the account. You can filter series using Prometheuss relabel_config configuration object. Relabeling is a powerful tool that allows you to classify and filter Prometheus targets and metrics by rewriting their label set. I have suggested calling it target_relabel_configs to differentiate it from metric_relabel_configs. The IAM credentials used must have the ec2:DescribeInstances permission to Any other characters else will be replaced with _. This service discovery uses the main IPv4 address by default, which that be Default targets are scraped every 30 seconds. The nodes role is used to discover Swarm nodes. which automates the Prometheus setup on top of Kubernetes. service port. If a task has no published ports, a target per task is To review, open the file in an editor that reveals hidden Unicode characters. *) regex captures the entire label value, replacement references this capture group, $1, when setting the new target_label. If the new configuration By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. As we saw before, the following block will set the env label to the replacement provided, so {env="production"} will be added to the labelset.
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