It does so by replacing the labels for scraped data by regexes with relabel_configs. 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 This solution stores data at scrape-time with the desired labels, no need for funny PromQL queries or hardcoded hacks. In our config, we only apply a node-exporter scrape config to instances which are tagged PrometheusScrape=Enabled, then we use the Name tag, and assign its value to the instance tag, and the similarly we assign the Environment tag value to the environment promtheus label value. NodeLegacyHostIP, and NodeHostName. Finally, the write_relabel_configs block applies relabeling rules to the data just before its sent to a remote endpoint. How relabeling in Prometheus works - Grafana Labs still uniquely labeled once the labels are removed. One of the following types can be configured to discover targets: The container role discovers one target per "virtual machine" owned by the account. The label will end with '.pod_node_name'. integrations This role uses the private IPv4 address by default. Not the answer you're looking for? following meta labels are available on all targets during for them. The following snippet of configuration demonstrates an allowlisting approach, where the specified metrics are shipped to remote storage, and all others dropped. Each pod of the daemonset will take the config, scrape the metrics, and send them for that node. configuration. 2.Prometheus - *), so if not specified, it will match the entire input. It is the canonical way to specify static targets in a scrape .). relabeling phase. See below for the configuration options for OVHcloud discovery: PuppetDB SD configurations allow retrieving scrape targets from For now, Prometheus Operator adds following labels automatically: endpoint, instance, namespace, pod, and service. 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. Prometheusrelabel_config - Qiita in the following places, preferring the first location found: If Prometheus is running within GCE, the service account associated with the Prometheus relabel configs are notoriously badly documented, so here's how to do something simple that I couldn't find documented anywhere: How to add a label to all metrics coming from a specific scrape target. stored in Zookeeper. devops, docker, prometheus, Create a AWS Lambda Layer with Docker Use metric_relabel_configs in a given scrape job to select which series and labels to keep, and to perform any label replacement operations. 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. changed with relabeling, as demonstrated in the Prometheus scaleway-sd 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. RE2 regular expression. The last path segment - ip-192-168-64-30.multipass:9100. The target address defaults to the first existing address of the Kubernetes first NICs IP address by default, but that can be changed with relabeling. How can I 'join' two metrics in a Prometheus query? Prometheus relabeling to control which instances will actually be scraped. The CloudWatch agent with Prometheus monitoring needs two configurations to scrape the Prometheus metrics. Connect and share knowledge within a single location that is structured and easy to search. Scaleway SD configurations allow retrieving scrape targets from Scaleway instances and baremetal services. Relabeling is a powerful tool to dynamically rewrite the label set of a target before Below are examples showing ways to use relabel_configs. Linode APIv4. How do I align things in the following tabular environment? instances. Alertmanagers may be statically configured via the static_configs parameter or RFC6763. determines the relabeling action to take: Care must be taken with labeldrop and labelkeep to ensure that metrics are A consists of seven fields. Grafana Cloud is the easiest way to get started with metrics, logs, traces, and dashboards. 5.6K subscribers in the PrometheusMonitoring community. via Uyuni API. 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. PrometheusGrafana. If a job is using kubernetes_sd_configs to discover targets, each role has associated __meta_* labels for metrics. So the solution I used is to combine an existing value containing what we want (the hostnmame) with a metric from the node exporter. OAuth 2.0 authentication using the client credentials grant type. The address will be set to the Kubernetes DNS name of the service and respective Scrape kubelet in every node in the k8s cluster without any extra scrape config. Some of these special labels available to us are. The labels can be used in the relabel_configs section to filter targets or replace labels for the targets. PDF Relabeling - PromCon EU 2022 An alertmanager_config section specifies Alertmanager instances the Prometheus Docker SD configurations allow retrieving scrape targets from Docker Engine hosts. Use Grafana to turn failure into resilience. Why are physically impossible and logically impossible concepts considered separate in terms of probability? Scrape cAdvisor in every node in the k8s cluster without any extra scrape config. You can reduce the number of active series sent to Grafana Cloud in two ways: Allowlisting: This involves keeping a set of important metrics and labels that you explicitly define, and dropping everything else. For users with thousands of containers it Tutorial - Configure Prometheus | Couchbase Developer Portal The target support for filtering instances. entities and provide advanced modifications to the used API path, which is exposed server sends alerts to. Published by Brian Brazil in Posts Tags: prometheus, relabelling, service discovery Share on Blog | Training | Book | Privacy Reload Prometheus and check out the targets page: Great! Overview. And if one doesn't work you can always try the other! Nomad SD configurations allow retrieving scrape targets from Nomad's 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. view raw prometheus.yml hosted with by GitHub , Prometheus . changed with relabeling, as demonstrated in the Prometheus scaleway-sd node_uname_info{nodename} -> instance -- I get a syntax error at startup. To allowlist metrics and labels, you should identify a set of core important metrics and labels that youd like to keep. 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. This is to ensure that different components that consume this label will adhere to the basic alphanumeric convention. This SD discovers resources and will create a target for each resource returned removing port from instance label - Google Groups This is generally useful for blackbox monitoring of a service. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . ), the The relabel_config step will use this number to populate the target_label with the result of the MD5(extracted value) % modulus expression. the given client access and secret keys. configuration file, the Prometheus marathon-sd configuration file, the Prometheus eureka-sd configuration file, the Prometheus scaleway-sd It has the same configuration format and actions as target relabeling. A static_config allows specifying a list of targets and a common label set source_labels and separator Let's start off with source_labels. to filter proxies and user-defined tags. 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. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? 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 way to filter containers. They are applied to the label set of each target in order of their appearance Only alphanumeric characters are allowed. Prometheus is an open-source monitoring and alerting toolkit that collects and stores its metrics as time series data. Prometheus relabeling tricks - Medium 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. Additionally, relabel_configs allow advanced modifications to any For each endpoint Prometheus relabel_configs 4. instances, as well as 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. This can be useful when local Prometheus storage is cheap and plentiful, but the set of metrics shipped to remote storage requires judicious curation to avoid excess costs. The relabel_configs section is applied at the time of target discovery and applies to each target for the job. metadata and a single tag). 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. First off, the relabel_configs key can be found as part of a scrape job definition. The ama-metrics replicaset pod consumes the custom Prometheus config and scrapes the specified targets. <__meta_consul_address>:<__meta_consul_service_port>. This minimal relabeling snippet searches across the set of scraped labels for the instance_ip label. Otherwise the custom configuration will fail validation and won't be applied. in the configuration file), which can also be changed using relabeling. Scrape the kubernetes api server in the k8s cluster without any extra scrape config. A blog on monitoring, scale and operational Sanity. single target is generated. 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. relabeling. instances. Prometheus Relabel Config Examples - Ruan Bekker's Blog Or if youre using Prometheus Kubernetes service discovery you might want to drop all targets from your testing or staging namespaces. for a detailed example of configuring Prometheus for Docker Swarm. discovery mechanism. Prometheus queries: How to give a default label when it is missing? Docker Swarm SD configurations allow retrieving scrape targets from Docker Swarm Prometheus (metric) relabel config with inverse regex match / negative If you use quotes or backslashes in the regex, you'll need to escape them using a backslash. The node-exporter config below is one of the default targets for the daemonset pods. Marathon SD configurations allow retrieving scrape targets using the Azure SD configurations allow retrieving scrape targets from Azure VMs. Where may be a path ending in .json, .yml or .yaml. The ingress role discovers a target for each path of each ingress. To learn how to do this, please see Sending data from multiple high-availability Prometheus instances. Generic placeholders are defined as follows: The other placeholders are specified separately. available as a label (see below). Relabel configs allow you to select which targets you want scraped, and what the target labels will be. instance it is running on should have at least read-only permissions to the Customize relabel configs Issue #1166 prometheus-operator However, its usually best to explicitly define these for readability. contexts. Does Counterspell prevent from any further spells being cast on a given turn? to the Kubelet's HTTP port. Prometheus applies this relabeling and dropping step after performing target selection using relabel_configs and metric selection and relabeling using metric_relabel_configs. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . Additional labels prefixed with __meta_ may be available during the The other is for the CloudWatch agent configuration. external labels send identical alerts. My target configuration was via IP addresses (, it should work with hostnames and ips, since the replacement regex would split at. Asking for help, clarification, or responding to other answers. valid JSON. address with relabeling. For all targets discovered directly from the endpointslice list (those not additionally inferred Prometheus will periodically check the REST endpoint and create a target for every discovered server. metrics without this label. So ultimately {__tmp=5} would be appended to the metrics label set. Omitted fields take on their default value, so these steps will usually be shorter. 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 create a target group for every app that has at least one healthy task. The endpoint is queried periodically at the specified refresh interval. I have installed Prometheus on the same server where my Django app is running. For example "test\'smetric\"s\"" and testbackslash\\*. Sorry, an error occurred. In this case Prometheus would drop a metric like container_network_tcp_usage_total(. will periodically check the REST endpoint for currently running tasks and is it query? If a service has no published ports, a target per inside a Prometheus-enabled mesh. This documentation is open-source. . Prometheus To specify which configuration file to load, use the --config.file flag. users with thousands of services it can be more efficient to use the Consul API Using metric_relabel_configs, you can drastically reduce your Prometheus metrics usage by throwing out unneeded samples. Prometheus is configured through a single YAML file called prometheus.yml. I used the answer to this post as a model for my request: https://stackoverflow.com/a/50357418 . relabel_configstargetmetric_relabel_configs relabel_configs drop relabel_configs: - source_labels: [__meta_ec2_tag_Name] regex: Example. This is most commonly used for sharding multiple targets across a fleet of Prometheus instances. for a detailed example of configuring Prometheus with PuppetDB. Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. You can extract a samples metric name using the __name__ meta-label. Scrape kube-state-metrics in the k8s cluster (installed as a part of the addon) without any extra scrape config. the public IP address with relabeling. See below for the configuration options for Uyuni discovery: See the Prometheus uyuni-sd configuration file Relabeling and filtering at this stage modifies or drops samples before Prometheus ingests them locally and ships them to remote storage. filepath from which the target was extracted. In this scenario, on my EC2 instances I have 3 tags: To play around with and analyze any regular expressions, you can use RegExr. tracing_config configures exporting traces from Prometheus to a tracing backend via the OTLP protocol. See the Prometheus marathon-sd configuration file relabeling phase. Finally, the modulus field expects a positive integer. Denylisting becomes possible once youve identified a list of high-cardinality metrics and labels that youd like to drop. instances it can be more efficient to use the EC2 API directly which has In the previous example, we may not be interested in keeping track of specific subsystems labels anymore. Using a standard prometheus config to scrape two targets: This configuration does not impact any configuration set in metric_relabel_configs or relabel_configs. For each published port of a task, a single Counter: A counter metric always increases; Gauge: A gauge metric can increase or decrease; Histogram: A histogram metric can increase or descrease; Source . This service discovery method only supports basic DNS A, AAAA, MX and SRV undefined - Coder v1 Docs anchored on both ends. Consul setups, the relevant address is in __meta_consul_service_address. config package - github.com/prometheus/prometheus/config - Go Packages metric_relabel_configs are commonly used to relabel and filter samples before ingestion, and limit the amount of data that gets persisted to storage. Please find below an example from other exporter (blackbox), but same logic applies for node exporter as well. vmagent VictoriaMetrics You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. Droplets API. One of the following types can be configured to discover targets: The hypervisor role discovers one target per Nova hypervisor node. The __address__ label is set to the : address of the target. The result of the concatenation is the string node-42 and the MD5 of the string modulus 8 is 5. configuration file. A Prometheus configuration may contain an array of relabeling steps; they are applied to the label set in the order they're defined in. Avoid downtime. Lets start off with source_labels. The HAProxy metrics have been discovered by Prometheus. 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. A static config has a list of static targets and any extra labels to add to them. The cluster label appended to every time series scraped will use the last part of the full AKS cluster's ARM resourceID. instance. The default regex value is (. ), but not system components (kubelet, node-exporter, kube-scheduler, .,) system components do not need most of the labels (endpoint . See below for the configuration options for Triton discovery: Eureka SD configurations allow retrieving scrape targets using the There are seven available actions to choose from, so lets take a closer look. You can also manipulate, transform, and rename series labels using relabel_config. 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. You can configure the metrics addon to scrape targets other than the default ones, using the same configuration format as the Prometheus configuration file. 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 target and vary between mechanisms. address defaults to the host_ip attribute of the hypervisor. Latest Published: Jan 31, 2023 License: Apache-2.0 Imports: 18 Imported by: 2,025 Details Valid go.mod file Redistributable license Tagged version Denylisting: This involves dropping a set of high-cardinality unimportant metrics that you explicitly define, and keeping everything else. Each target has a meta label __meta_url during the The regex is There are Mixins for Kubernetes, Consul, Jaeger, and much more. Prometheuslabel_replace See below for the configuration options for Scaleway discovery: Uyuni SD configurations allow retrieving scrape targets from managed systems refresh failures. Kuma SD configurations allow retrieving scrape target from the Kuma control plane. Choosing which metrics and samples to scrape, store, and ship to Grafana Cloud can seem quite daunting at first. configuration file. And what can they actually be used for? This feature allows you to filter through series labels using regular expressions and keep or drop those that match. The account must be a Triton operator and is currently required to own at least one container. Configuration | Prometheus Prometheus 30- If it finds the instance_ip label, it renames this label to host_ip.