changed with relabeling, as demonstrated in the Prometheus scaleway-sd domain names which are periodically queried to discover a list of targets. How can I 'join' two metrics in a Prometheus query? will periodically check the REST endpoint and relabeling phase. 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. Any other characters else will be replaced with _. 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. Since weve used default regex, replacement, action, and separator values here, they can be omitted for brevity. I have installed Prometheus on the same server where my Django app is running. Finally, this configures authentication credentials and the remote_write queue. Whats the grammar of "For those whose stories they are"? discovery mechanism. still uniquely labeled once the labels are removed. A blog on monitoring, scale and operational Sanity. Use metric_relabel_configs in a given scrape job to select which series and labels to keep, and to perform any label replacement operations. input to a subsequent relabeling step), use the __tmp label name prefix. 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. You can additionally define remote_write-specific relabeling rules here. Service API. Consul setups, the relevant address is in __meta_consul_service_address. This role uses the private IPv4 address by default. 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. filtering containers (using filters). relabeling phase. One use for this is ensuring a HA pair of Prometheus servers with different 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. The labelmap action is used to map one or more label pairs to different label names. Each target has a meta label __meta_url during the Grafana Labs uses cookies for the normal operation of this website. In addition, the instance label for the node will be set to the node name The HTTP header Content-Type must be application/json, and the body must be Additionally, relabel_configs allow selecting Alertmanagers from discovered from underlying pods), the following labels are attached. 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. And what can they actually be used for? Once Prometheus is running, you can use PromQL queries to see how the metrics are evolving over time, such as rate (node_cpu_seconds_total [1m]) to observe CPU usage: While the node exporter does a great job of producing machine-level metrics on Unix systems, it's not going to help you expose metrics for all of your other third-party applications. Scrape node metrics without any extra scrape config. will periodically check the REST endpoint for currently running tasks and This will cut your active series count in half. 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. metric_relabel_configs /metricsmetric_relabel_configs 3.2.2 alertmanagers alertmanagers Prometheus alertmanagers Prometheuspushing alertmanager alertmanager target If you use quotes or backslashes in the regex, you'll need to escape them using a backslash. For each endpoint 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. First, it should be metric_relabel_configs rather than relabel_configs. The label will end with '.pod_node_name'. May 29, 2017. job. See below for the configuration options for Lightsail discovery: Linode SD configurations allow retrieving scrape targets from Linode's One use for this is to exclude time series that are too expensive to ingest. service is created using the port parameter defined in the SD configuration. Parameters that arent explicitly set will be filled in using default values. Where must be unique across all scrape configurations. The resource address is the certname of the resource and can be changed during For now, Prometheus Operator adds following labels automatically: endpoint, instance, namespace, pod, and service. configuration. action: keep. GCE SD configurations allow retrieving scrape targets from GCP GCE instances. can be more efficient to use the Docker API directly which has basic support for 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. Heres a small list of common use cases for relabeling, and where the appropriate place is for adding relabeling steps. write_relabel_configs is relabeling applied to samples before sending them Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. How do I align things in the following tabular environment? The private IP address is used by default, but may be changed to And if one doesn't work you can always try the other! 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 Azure SD configurations allow retrieving scrape targets from Azure VMs. record queries, but not the advanced DNS-SD approach specified in Marathon SD configurations allow retrieving scrape targets using the If the new configuration There are seven available actions to choose from, so lets take a closer look. If you are running the Prometheus Operator (e.g. Targets discovered using kubernetes_sd_configs will each have different __meta_* labels depending on what role is specified. Of course, we can do the opposite and only keep a specific set of labels and drop everything else. instance. Published by Brian Brazil in Posts Tags: prometheus, relabelling, service discovery Share on Blog | Training | Book | Privacy the target and vary between mechanisms. additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. This article provides instructions on customizing metrics scraping for a Kubernetes cluster with the metrics addon in Azure Monitor. s. The instance role discovers one target per network interface of Nova It is the canonical way to specify static targets in a scrape * action: drop metric_relabel_configs Scrape info about the prometheus-collector container such as the amount and size of timeseries scraped. The Linux Foundation has registered trademarks and uses trademarks. 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. - Key: Environment, Value: dev. anchored on both ends. A tls_config allows configuring TLS connections. and applied immediately. Prometheusrelabel config sell prometheus Prometheus relabel config 1. scrapelabel node_exporternode_cpucpurelabel config 2. action=replace You can, for example, only keep specific metric names. Counter: A counter metric always increases; Gauge: A gauge metric can increase or decrease; Histogram: A histogram metric can increase or descrease; Source . However, in some Refer to Apply config file section to create a configmap from the prometheus config. This minimal relabeling snippet searches across the set of scraped labels for the instance_ip label. Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. I'm also loathe to fork it and have to maintain in parallel with upstream, I have neither the time nor the karma. my/path/tg_*.json. 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. Relabeling is a powerful tool that allows you to classify and filter Prometheus targets and metrics by rewriting their label set. After saving the config file switch to the terminal with your Prometheus docker container and stop it by pressing ctrl+C and start it again to reload the configuration by using the existing command. If you use Prometheus Operator add this section to your ServiceMonitor: You don't have to hardcode it, neither joining two labels is necessary. 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 Our answer exist inside the node_uname_info metric which contains the nodename value. yamlyaml. I used the answer to this post as a model for my request: https://stackoverflow.com/a/50357418 . I've been trying in vai for a month to find a coherent explanation of group_left, and expressions aren't labels. The relabeling phase is the preferred and more powerful value is set to the specified default. To un-anchor the regex, use .*.*. the given client access and secret keys. feature to replace the special __address__ label. For example, kubelet is the metric filtering setting for the default target kubelet. Targets may be statically configured via the static_configs parameter or from the /metrics page) that you want to manipulate that's where metric_relabel_configs applies. PuppetDB resources. Downloads. The following snippet of configuration demonstrates an allowlisting approach, where the specified metrics are shipped to remote storage, and all others dropped. While The target Labels are sets of key-value pairs that allow us to characterize and organize whats actually being measured in a Prometheus metric. The endpointslice role discovers targets from existing endpointslices. Serversets are commonly Each pod of the daemonset will take the config, scrape the metrics, and send them for that node. Prometheus is configured via command-line flags and a configuration file. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . This service discovery uses the configuration file defines everything related to scraping jobs and their The first relabeling rule adds {__keep="yes"} label to metrics with mountpoint matching the given regex. Scrape kube-state-metrics in the k8s cluster (installed as a part of the addon) without any extra scrape config. To enable allowlisting in Prometheus, use the keep and labelkeep actions with any relabeling configuration. 1Prometheus. See this example Prometheus configuration file This block would match the two values we previously extracted, However, this block would not match the previous labels and would abort the execution of this specific relabel step. The default Prometheus configuration file contains the following two relabeling configurations: - action: replace source_labels: [__meta_kubernetes_pod_uid] target_label: sysdig_k8s_pod_uid - action: replace source_labels: [__meta_kubernetes_pod_container_name] target_label: sysdig_k8s_pod_container_name port of a container, a single target is generated. First off, the relabel_configs key can be found as part of a scrape job definition. For each published port of a task, a single The other is for the CloudWatch agent configuration. The hashmod action provides a mechanism for horizontally scaling Prometheus. To drop a specific label, select it using source_labels and use a replacement value of "". 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. integrations This is experimental and could change in the future. in the configuration file), which can also be changed using relabeling. 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. 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. Why does Mister Mxyzptlk need to have a weakness in the comics? A relabel_configs configuration allows you to keep or drop targets returned by a service discovery mechanism like Kubernetes service discovery or AWS EC2 instance service discovery. 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. service port. Example scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. You can either create this configmap or edit an existing one. it was not set during relabeling. If the relabel action results in a value being written to some label, target_label defines to which label the replacement should be written. target and its labels before scraping. Why are physically impossible and logically impossible concepts considered separate in terms of probability? Finally, the write_relabel_configs block applies relabeling rules to the data just before its sent to a remote endpoint. Note that exemplar storage is still considered experimental and must be enabled via --enable-feature=exemplar-storage. By default, instance is set to __address__, which is $host:$port. To learn more about remote_write configuration parameters, please see remote_write from the Prometheus docs. I am attempting to retrieve metrics using an API and the curl response appears to be in the correct format. configuration file. It expects an array of one or more label names, which are used to select the respective label values. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. The pod role discovers all pods and exposes their containers as targets. 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 Kuma SD configurations allow retrieving scrape target from the Kuma control plane. Connect and share knowledge within a single location that is structured and easy to search. This service discovery uses the public IPv4 address by default, but that can be Relabeling and filtering at this stage modifies or drops samples before Prometheus ships them to remote storage. Where may be a path ending in .json, .yml or .yaml. It may be a factor that my environment does not have DNS A or PTR records for the nodes in question. 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. Changes to all defined files are detected via disk watches configuration. How can they help us in our day-to-day work? 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. Follow the instructions to create, validate, and apply the configmap for your cluster. For redis we use targets like described in, Relabel instance to hostname in Prometheus, groups.google.com/forum/#!topic/prometheus-developers/, github.com/oliver006/redis_exporter/issues/623, https://stackoverflow.com/a/64623786/2043385, How Intuit democratizes AI development across teams through reusability. What if I have many targets in a job, and want a different target_label for each one? You can also manipulate, transform, and rename series labels using relabel_config. So as a simple rule of thumb: relabel_config happens before the scrape,metric_relabel_configs happens after the scrape. If shipping samples to Grafana Cloud, you also have the option of persisting samples locally, but preventing shipping to remote storage. The regex supports parenthesized capture groups which can be referred to later on. Linode APIv4. Mixins are a set of preconfigured dashboards and alerts. 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. Three different configmaps can be configured to change the default settings of the metrics addon: The ama-metrics-settings-configmap can be downloaded, edited, and applied to the cluster to customize the out-of-the-box features of the metrics addon. relabeling is completed. Read more. This feature allows you to filter through series labels using regular expressions and keep or drop those that match. Prometheus K8SYaml K8S metrics without this label. Heres an example. Latest Published: Jan 31, 2023 License: Apache-2.0 Imports: 18 Imported by: 2,025 Details Valid go.mod file Redistributable license Tagged version Add a new label called example_label with value example_value to every metric of the job. for a detailed example of configuring Prometheus for Docker Swarm. changed with relabeling, as demonstrated in the Prometheus scaleway-sd They are applied to the label set of each target in order of their appearance See below for the configuration options for Docker discovery: The relabeling phase is the preferred and more powerful Relabel configs allow you to select which targets you want scraped, and what the target labels will be. 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. A configuration reload is triggered by sending a SIGHUP to the Prometheus process or discover scrape targets, and may optionally have the For details on custom configuration, see Customize scraping of Prometheus metrics in Azure Monitor. interface. 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). Some of these special labels available to us are. The replacement field defaults to just $1, the first captured regex, so its sometimes omitted. integrations with this Relabeling relabeling Prometheus Relabel Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. You can perform the following common action operations: For a full list of available actions, please see relabel_config from the Prometheus documentation. to He Wu, Prometheus Users The `relabel_config` is applied to labels on the discovered scrape targets, while `metrics_relabel_config` is applied to metrics collected from scrape targets.. As an example, consider the following two metrics. These are SmartOS zones or lx/KVM/bhyve branded zones. inside a Prometheus-enabled mesh. Any label pairs whose names match the provided regex will be copied with the new label name given in the replacement field, by utilizing group references (${1}, ${2}, etc). for a practical example on how to set up your Marathon app and your Prometheus via the MADS v1 (Monitoring Assignment Discovery Service) xDS API, and will create a target for each proxy The following meta labels are available for each target: See below for the configuration options for Kuma MonitoringAssignment discovery: The relabeling phase is the preferred and more powerful way It does so by replacing the labels for scraped data by regexes with relabel_configs. 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 This occurs after target selection using relabel_configs. The replace action is most useful when you combine it with other fields. metadata and a single tag). However, its usually best to explicitly define these for readability. To learn more about the general format for a relabel_config block, please see relabel_config from the Prometheus docs. 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. tracing_config configures exporting traces from Prometheus to a tracing backend via the OTLP protocol. Hetzner SD configurations allow retrieving scrape targets from Prometheus is an open-source monitoring and alerting toolkit that collects and stores its metrics as time series data. Using the write_relabel_config entry shown below, you can target the metric name using the __name__ label in combination with the instance name. Using metric_relabel_configs, you can drastically reduce your Prometheus metrics usage by throwing out unneeded samples. The endpoints role discovers targets from listed endpoints of a service. For example, when measuring HTTP latency, we might use labels to record the HTTP method and status returned, which endpoint was called, and which server was responsible for the request. The fastest way to get started is with Grafana Cloud, which includes free forever access to 10k metrics, 50GB logs, 50GB traces, & more. Prometheus metric_relabel_configs . way to filter tasks, services or nodes. To learn more about remote_write, please see remote_write from the official Prometheus docs. Hope you learned a thing or two about relabeling rules and that youre more comfortable with using them. Prometheus also provides some internal labels for us. configuration file. ), the metric_relabel_configsmetric . 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. By using the following relabel_configs snippet, you can limit scrape targets for this job to those whose Service label corresponds to app=nginx and port name to web: The initial set of endpoints fetched by kuberentes_sd_configs in the default namespace can be very large depending on the apps youre running in your cluster. label is set to the value of the first passed URL parameter called . are published with mode=host. The result of the concatenation is the string node-42 and the MD5 of the string modulus 8 is 5. By default, all apps will show up as a single job in Prometheus (the one specified address defaults to the host_ip attribute of the hypervisor. A scrape_config section specifies a set of targets and parameters describing how for a detailed example of configuring Prometheus for Docker Engine. How is an ETF fee calculated in a trade that ends in less than a year? For example, if a Pod backing the Nginx service has two ports, we only scrape the port named web and drop the other. IONOS SD configurations allows retrieving scrape targets from 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. When metrics come from another system they often don't have labels. So if there are some expensive metrics you want to drop, or labels coming from the scrape itself (e.g. 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. To bulk drop or keep labels, use the labelkeep and labeldrop actions. Scaleway SD configurations allow retrieving scrape targets from Scaleway instances and baremetal services. following meta labels are available on all targets during valid JSON. Tracing is currently an experimental feature and could change in the future. Its value is set to the # prometheus $ vim /usr/local/prometheus/prometheus.yml $ sudo systemctl restart prometheus Thanks for contributing an answer to Stack Overflow! Eureka REST API. For readability its usually best to explicitly define a relabel_config. Marathon REST API. This is often useful when fetching sets of targets using a service discovery mechanism like kubernetes_sd_configs, or Kubernetes service discovery. To filter by them at the metrics level, first keep them using relabel_configs by assigning a label name and then use metric_relabel_configs to filter. A DNS-based service discovery configuration allows specifying a set of DNS Prometheuslabel_replace | by kameneko | penguin-lab | Medium Write Sign up Sign In 500 Apologies, but something went wrong on our end.