for a detailed example of configuring Prometheus with PuppetDB. My target configuration was via IP addresses (, it should work with hostnames and ips, since the replacement regex would split at. <__meta_consul_address>:<__meta_consul_service_port>. NodeLegacyHostIP, and NodeHostName. Using this feature, you can store metrics locally but prevent them from shipping to Grafana Cloud. configuration file, the Prometheus linode-sd instances. PuppetDB resources. We drop all ports that arent named web. To learn more about remote_write configuration parameters, please see remote_write from the Prometheus docs. from underlying pods), the following labels are attached: If the endpoints belong to a service, all labels of the, For all targets backed by a pod, all labels of the. 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 One is for the standard Prometheus configurations as documented in <scrape_config> in the Prometheus documentation. job. Follow the instructions to create, validate, and apply the configmap for your cluster. metric_relabel_configs offers one way around that. Sign up for free now! Consider the following metric and relabeling step. for them. config package - github.com/prometheus/prometheus/config - Go Packages The highest tagged major version is v2 . the given client access and secret keys. 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:. configuration file. If you drop a label in a metric_relabel_configs section, it wont be ingested by Prometheus and consequently wont be shipped to remote storage. 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. It fetches targets from an HTTP endpoint containing a list of zero or more Which is frowned on by upstream as an "antipattern" because apparently there is an expectation that instance be the only label whose value is unique across all metrics in the job. the public IP address with relabeling. Scrape node metrics without any extra scrape config. See below for the configuration options for Docker Swarm discovery: The relabeling phase is the preferred and more powerful I am attempting to retrieve metrics using an API and the curl response appears to be in the correct format. On the federation endpoint Prometheus can add labels When sending alerts we can alter alerts labels their API. integrations with this Omitted fields take on their default value, so these steps will usually be shorter. This can be for a practical example on how to set up your Marathon app and your Prometheus The nodes role is used to discover Swarm nodes. See below for the configuration options for Uyuni discovery: See the Prometheus uyuni-sd configuration file 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. filepath from which the target was extracted. A static config has a list of static targets and any extra labels to add to them. This will also reload any configured rule files. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. DigitalOcean SD configurations allow retrieving scrape targets from DigitalOcean's instances, as well as Developing and deploying an application to Verrazzano consists of: Packaging the application as a Docker image. changed with relabeling, as demonstrated in the Prometheus digitalocean-sd The relabeling step calculates the MD5 hash of the concatenated label values modulo a positive integer N, resulting in a number in the range [0, N-1]. integrations Prometheus keeps all other metrics. Relabelling. 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). windows_exporter: enabled: true metric_relabel_configs: - source_labels: [__name__] regex: windows_system_system_up_time action: keep . configuration. The currently supported methods of target discovery for a scrape config are either static_configs or kubernetes_sd_configs for specifying or discovering targets. locations, amount of data to keep on disk and in memory, etc. defined by the scheme described below. The __scrape_interval__ and __scrape_timeout__ labels are set to the target's To subscribe to this RSS feed, copy and paste this URL into your RSS reader. For example, you may have a scrape job that fetches all Kubernetes Endpoints using a kubernetes_sd_configs parameter. support for filtering instances. 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. And if one doesn't work you can always try the other! Prometheusrelabel config sell prometheus Prometheus relabel config 1. scrapelabel node_exporternode_cpucpurelabel config 2. action=replace 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). (relabel_config) prometheus . 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 from the /metrics page) that you want to manipulate that's where metric_relabel_configs applies. With a (partial) config that looks like this, I was able to achieve the desired result. I'm not sure if that's helpful. instance it is running on should have at least read-only permissions to the Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. Since the (. If a container has no specified ports, See below for the configuration options for OpenStack discovery: OVHcloud SD configurations allow retrieving scrape targets from OVHcloud's dedicated servers and VPS using What if I have many targets in a job, and want a different target_label for each one? After scraping these endpoints, Prometheus applies the metric_relabel_configs section, which drops all metrics whose metric name matches the specified regex. A tls_config allows configuring TLS connections. For details on custom configuration, see Customize scraping of Prometheus metrics in Azure Monitor. 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 The __param_ 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. Asking for help, clarification, or responding to other answers. So the solution I used is to combine an existing value containing what we want (the hostnmame) with a metric from the node exporter. Any other characters else will be replaced with _. RFC6763. See the Prometheus examples of scrape configs for a Kubernetes cluster. May 30th, 2022 3:01 am from underlying pods), the following labels are attached. server sends alerts to. Targets discovered using kubernetes_sd_configs will each have different __meta_* labels depending on what role is specified. service is created using the port parameter defined in the SD configuration. This SD discovers resources and will create a target for each resource returned Downloads. *) to catch everything from the source label, and since there is only one group we use the replacement as ${1}-randomtext and use that value to apply it as the value of the given target_label which in this case is for randomlabel, which will be in this case: In this case we want to relabel the __address__ and apply the value to the instance label, but we want to exclude the :9100 from the __address__ label: On AWS EC2 you can make use of the ec2_sd_config where you can make use of EC2 Tags, to set the values of your tags to prometheus label values. Lets start off with source_labels. Only alphanumeric characters are allowed. Latest Published: Jan 31, 2023 License: Apache-2.0 Imports: 18 Imported by: 2,025 Details Valid go.mod file Redistributable license Tagged version 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. To do this, use a relabel_config object in the write_relabel_configs subsection of the remote_write section of your Prometheus config. How can they help us in our day-to-day work? Where must be unique across all scrape configurations. view raw prometheus.yml hosted with by GitHub , Prometheus . See below for the configuration options for Scaleway discovery: Uyuni SD configurations allow retrieving scrape targets from managed systems To learn more, please see Regular expression on Wikipedia. It uses the $NODE_IP environment variable, which is already set for every ama-metrics addon container to target a specific port on the node: Custom scrape targets can follow the same format using static_configs with targets using the $NODE_IP environment variable and specifying the port to scrape. the cluster state. changed with relabeling, as demonstrated in the Prometheus scaleway-sd Prometheus Cheatsheets My Cheatsheet Repository View on GitHub Prometheus Cheatsheets. to filter proxies and user-defined tags. 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. Add a new label called example_label with value example_value to every metric of the job. To allowlist metrics and labels, you should identify a set of core important metrics and labels that youd like to keep. way to filter targets based on arbitrary labels. ec2:DescribeAvailabilityZones permission if you want the availability zone ID The relabel_configs section is applied at the time of target discovery and applies to each target for the job. Grafana Labs uses cookies for the normal operation of this website. It The above snippet will concatenate the values stored in __meta_kubernetes_pod_name and __meta_kubernetes_pod_container_port_number. Prometheus Authors 2014-2023 | Documentation Distributed under CC-BY-4.0. Parameters that arent explicitly set will be filled in using default values. 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. Enter relabel_configs, a powerful way to change metric labels dynamically. 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. Blog | Training | Book | Privacy, relabel_configs vs metric_relabel_configs. directly which has basic support for filtering nodes (currently by node Service API. IONOS Cloud API. 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. Published by Brian Brazil in Posts. instances it can be more efficient to use the EC2 API directly which has The relabeling phase is the preferred and more powerful To override the cluster label in the time series scraped, update the setting cluster_alias to any string under prometheus-collector-settings in the ama-metrics-settings-configmap configmap. Lightsail SD configurations allow retrieving scrape targets from AWS Lightsail I'm working on file-based service discovery from a DB dump that will be able to write these targets out. Now what can we do with those building blocks? - the incident has nothing to do with me; can I use this this way? To learn how to do this, please see Sending data from multiple high-availability Prometheus instances. label is set to the value of the first passed URL parameter called . 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. Prometheus metric_relabel_configs . If not all 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 You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. In many cases, heres where internal labels come into play. The following relabeling would remove all {subsystem=""} labels but keep other labels intact. So if there are some expensive metrics you want to drop, or labels coming from the scrape itself (e.g. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? To collect all metrics from default targets, in the configmap under default-targets-metrics-keep-list, set minimalingestionprofile to false. It is the canonical way to specify static targets in a scrape What sort of strategies would a medieval military use against a fantasy giant? 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. interval and timeout. Azure SD configurations allow retrieving scrape targets from Azure VMs. Brackets indicate that a parameter is optional. See below for the configuration options for OVHcloud discovery: PuppetDB SD configurations allow retrieving scrape targets from the command-line flags configure immutable system parameters (such as storage See below for the configuration options for EC2 discovery: The relabeling phase is the preferred and more powerful Relabeling and filtering at this stage modifies or drops samples before Prometheus ships them to remote storage. DNS servers to be contacted are read from /etc/resolv.conf. Prometheuslabel_replace | by kameneko | penguin-lab | Medium Write Sign up Sign In 500 Apologies, but something went wrong on our end. configuration file. This 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 configuration. service account and place the credential file in one of the expected locations. it was not set during relabeling. via Uyuni API. In this scenario, on my EC2 instances I have 3 tags: 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. relabel_configsmetric_relabel_configssource_labels CC 4.0 BY-SA Why does Mister Mxyzptlk need to have a weakness in the comics? In other words, its metrics information is stored with the timestamp at which it was recorded, alongside optional key-value pairs called labels. You can also manipulate, transform, and rename series labels using relabel_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. First, it should be metric_relabel_configs rather than relabel_configs. So let's shine some light on these two configuration options. For now, Prometheus Operator adds following labels automatically: endpoint, instance, namespace, pod, and service. address with relabeling. The instance role discovers one target per network interface of Nova yamlyaml. Of course, we can do the opposite and only keep a specific set of labels and drop everything else. The job and instance label values can be changed based on the source label, just like any other label. in the configuration file), which can also be changed using relabeling. Scrape cAdvisor in every node in the k8s cluster without any extra scrape config. While But what about metrics with no labels? Advanced Setup: Configure custom Prometheus scrape jobs for the daemonset Relabeling is a powerful tool that allows you to classify and filter Prometheus targets and metrics by rewriting their label set. You can add additional metric_relabel_configs sections that replace and modify labels here. and exposes their ports as targets. These relabeling steps are applied before the scrape occurs and only have access to labels added by Prometheus Service Discovery. GCE SD configurations allow retrieving scrape targets from GCP GCE instances. 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. dynamically discovered using one of the supported service-discovery mechanisms. Its value is set to the will periodically check the REST endpoint for currently running tasks and Not the answer you're looking for? node object in the address type order of NodeInternalIP, NodeExternalIP, If you are running the Prometheus Operator (e.g. For each published port of a task, a single Alert Hetzner Cloud API and refresh failures. Scrape kube-proxy in every linux node discovered in the k8s cluster without any extra scrape config. For users with thousands of tasks it Published by Brian Brazil in Posts Tags: prometheus, relabelling, service discovery Share on Blog | Training | Book | Privacy EC2 SD configurations allow retrieving scrape targets from AWS EC2 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. I see that the node exporter provides the metric node_uname_info that contains the hostname, but how do I extract it from there? If a service has no published ports, a target per anchored on both ends. . This role uses the private IPv4 address by default. For each endpoint RE2 regular expression. Default targets are scraped every 30 seconds. 3. 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 Scrape coredns service in the k8s cluster without any extra scrape config. There are seven available actions to choose from, so lets take a closer look. devops, docker, prometheus, Create a AWS Lambda Layer with Docker and applied immediately. Write relabeling is applied after external labels. The target address defaults to the first existing address of the Kubernetes Connect and share knowledge within a single location that is structured and easy to search. write_relabel_configs is relabeling applied to samples before sending them The HTTP header Content-Type must be application/json, and the body must be We must make sure that all metrics are still uniquely labeled after applying labelkeep and labeldrop rules. Discover Packages github.com/prometheus/prometheus config config package Version: v0.42. metadata and a single tag). Which seems odd. It may be a factor that my environment does not have DNS A or PTR records for the nodes in question. The PromQL queries that power these dashboards and alerts reference a core set of important observability metrics. Otherwise the custom configuration will fail validation and won't be applied. additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. So without further ado, lets get into it! configuration file. Note: By signing up, you agree to be emailed related product-level information. rev2023.3.3.43278. Prometheus needs to know what to scrape, and that's where service discovery and relabel_configs come in. It reads a set of files containing a list of zero or more We could offer this as an alias, to allow config file transition for Prometheus 3.x. The __* labels are dropped after discovering the targets. This set of targets consists of one or more Pods that have one or more defined ports. This documentation is open-source. One of the following types can be configured to discover targets: The container role discovers one target per "virtual machine" owned by the account. For example "test\'smetric\"s\"" and testbackslash\\*. Why do academics stay as adjuncts for years rather than move around? As an example, consider the following two metrics. Prometheus relabeling to control which instances will actually be scraped. The terminal should return the message "Server is ready to receive web requests." changed with relabeling, as demonstrated in the Prometheus vultr-sd This will also reload any configured rule files. Triton SD configurations allow retrieving The This configuration does not impact any configuration set in metric_relabel_configs or relabel_configs. In advanced configurations, this may change. domain names which are periodically queried to discover a list of targets. To play around with and analyze any regular expressions, you can use RegExr. 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. The replacement field defaults to just $1, the first captured regex, so its sometimes omitted. To bulk drop or keep labels, use the labelkeep and labeldrop actions. This is to ensure that different components that consume this label will adhere to the basic alphanumeric convention. After relabeling, the instance label is set to the value of __address__ by default if The service role discovers a target for each service port for each service. 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. To specify which configuration file to load, use the --config.file flag. configuration file. A static_config allows specifying a list of targets and a common label set You can additionally define remote_write-specific relabeling rules here. Zookeeper. You can use a relabel_config to filter through and relabel: Youll learn how to do this in the next section. discovery mechanism. This service discovery uses the relabeling is applied after external labels. metric_relabel_configs /metricsmetric_relabel_configs 3.2.2 alertmanagers alertmanagers Prometheus alertmanagers Prometheuspushing alertmanager alertmanager target IONOS SD configurations allows retrieving scrape targets from through the __alerts_path__ label. discovery endpoints. I just came across this problem and the solution is to use a group_left to resolve this problem. If a task has no published ports, a target per task is which rule files to load. for a detailed example of configuring Prometheus for Docker Engine. target and its labels before scraping. Furthermore, only Endpoints that have https-metrics as a defined port name are kept. Marathon SD configurations allow retrieving scrape targets using the Each pod of the daemonset will take the config, scrape the metrics, and send them for that node.