This Denylisting: This involves dropping a set of high-cardinality unimportant metrics that you explicitly define, and keeping everything else. 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 See below for the configuration options for Docker discovery: The relabeling phase is the preferred and more powerful Dropping metrics at scrape time with Prometheus It's easy to get carried away by the power of labels with Prometheus. Next, using relabel_configs, only Endpoints with the Service Label k8s_app=kubelet are kept. Metric These begin with two underscores and are removed after all relabeling steps are applied; that means they will not be available unless we explicitly configure them to. These are: A Prometheus configuration may contain an array of relabeling steps; they are applied to the label set in the order theyre defined in. prometheustarget 12key metrics_relabel_configsrelabel_configsmetrics_relabel_configsrelabel_configstarget metric_relabel_configs 0 APP "" sleepyzhang 0 7638 0 0 Where must be unique across all scrape configurations. To do this, use a relabel_config object in the write_relabel_configs subsection of the remote_write section of your Prometheus config. // Config is the top-level configuration for Prometheus's config files. Omitted fields take on their default value, so these steps will usually be shorter. The resource address is the certname of the resource and can be changed during See the Debug Mode section in Troubleshoot collection of Prometheus metrics for more details. as retrieved from the API server. 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 Or if youre using Prometheus Kubernetes service discovery you might want to drop all targets from your testing or staging namespaces. The result of the concatenation is the string node-42 and the MD5 of the string modulus 8 is 5. Avoid downtime. . It may be a factor that my environment does not have DNS A or PTR records for the nodes in question. Additional config for this answer: You can either create this configmap or edit an existing one. This is to ensure that different components that consume this label will adhere to the basic alphanumeric convention. scrape targets from Container Monitor The following rule could be used to distribute the load between 8 Prometheus instances, each responsible for scraping the subset of targets that end up producing a certain value in the [0, 7] range, and ignoring all others. Prometheus metric_relabel_configs . Refer to Apply config file section to create a configmap from the prometheus config. value is set to the specified default. They are applied to the label set of each target in order of their appearance a port-free target per container is created for manually adding a port via relabeling. A tls_config allows configuring TLS connections. s. 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.. <__meta_consul_address>:<__meta_consul_service_port>. with kube-prometheus-stack) then you can specify additional scrape config jobs to monitor your custom services. Relabelling. my/path/tg_*.json. See below for the configuration options for PuppetDB discovery: See this example Prometheus configuration file How to use Slater Type Orbitals as a basis functions in matrix method correctly? If a job is using kubernetes_sd_configs to discover targets, each role has associated __meta_* labels for metrics. 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. After scraping these endpoints, Prometheus applies the metric_relabel_configs section, which drops all metrics whose metric name matches the specified regex. The node-exporter config below is one of the default targets for the daemonset pods. They also serve as defaults for other configuration sections. Read more. With a (partial) config that looks like this, I was able to achieve the desired result. The account must be a Triton operator and is currently required to own at least one container. This is often useful when fetching sets of targets using a service discovery mechanism like kubernetes_sd_configs, or Kubernetes service discovery. Note that the IP number and port used to scrape the targets is assembled as In those cases, you can use the relabel Aurora. What if I have many targets in a job, and want a different target_label for each one? For a list of trademarks of The Linux Foundation, please see our Trademark Usage page. Using the __meta_kubernetes_service_label_app label filter, endpoints whose corresponding services do not have the app=nginx label will be dropped by this scrape job. Targets may be statically configured via the static_configs parameter or interface. Any other characters else will be replaced with _. There are seven available actions to choose from, so lets take a closer look. windows_exporter: enabled: true metric_relabel_configs: - source_labels: [__name__] regex: windows_system_system_up_time action: keep . - ip-192-168-64-30.multipass:9100. used by Finagle and Prometheus needs to know what to scrape, and that's where service discovery and relabel_configs come in. If a container has no specified ports, For all targets discovered directly from the endpoints list (those not additionally inferred 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. I see that the node exporter provides the metric node_uname_info that contains the hostname, but how do I extract it from there? This role uses the private IPv4 address by default. Let's say you don't want to receive data for the metric node_memory_active_bytes from an instance running at localhost:9100. The nodes role is used to discover Swarm nodes. Relabeling and filtering at this stage modifies or drops samples before Prometheus ingests them locally and ships them to remote storage. relabeling: Kubernetes SD configurations allow retrieving scrape targets from Its value is set to the Below are examples showing ways to use relabel_configs. Parameters that arent explicitly set will be filled in using default values. You can additionally define remote_write-specific relabeling rules here. Linode APIv4. 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. This is often resolved by using metric_relabel_configs instead (the reverse has also happened, but it's far less common). 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. defined by the scheme described below. After changing the file, the prometheus service will need to be restarted to pickup the changes. create a target for every app instance. I just came across this problem and the solution is to use a group_left to resolve this problem. Thanks for contributing an answer to Stack Overflow! Asking for help, clarification, or responding to other answers. Finally, use write_relabel_configs in a remote_write configuration to select which series and labels to ship to remote storage. https://stackoverflow.com/a/64623786/2043385. I am attempting to retrieve metrics using an API and the curl response appears to be in the correct format. You can, for example, only keep specific metric names. See this example Prometheus configuration file I'm not sure if that's helpful. To enable allowlisting in Prometheus, use the keep and labelkeep actions with any relabeling configuration. 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 - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . A static config has a list of static targets and any extra labels to add to them. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . configuration file, the Prometheus linode-sd the given client access and secret keys. How do I align things in the following tabular environment? address with relabeling. way to filter targets based on arbitrary labels. The above snippet will concatenate the values stored in __meta_kubernetes_pod_name and __meta_kubernetes_pod_container_port_number. integrations with this changed with relabeling, as demonstrated in the Prometheus hetzner-sd the public IP address with relabeling. devops, docker, prometheus, Create a AWS Lambda Layer with Docker It does so by replacing the labels for scraped data by regexes with relabel_configs. The PromQL queries that power these dashboards and alerts reference a core set of important observability metrics. Scrape cAdvisor in every node in the k8s cluster without any extra scrape config. 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. Thats all for today! refresh failures. Relabeler allows you to visually confirm the rules implemented by a relabel config. It fetches targets from an HTTP endpoint containing a list of zero or more 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. However, in some So the solution I used is to combine an existing value containing what we want (the hostnmame) with a metric from the node exporter. The default regex value is (. The other is for the CloudWatch agent configuration. 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. This service discovery uses the compute resources. The scrape config should only target a single node and shouldn't use service discovery. s. Why does Mister Mxyzptlk need to have a weakness in the comics? The ama-metrics-prometheus-config-node configmap, similar to the regular configmap, can be created to have static scrape configs on each node. For instance, if you created a secret named kube-prometheus-prometheus-alert-relabel-config and it contains a file named additional-alert-relabel-configs.yaml, use the parameters below: This set of targets consists of one or more Pods that have one or more defined ports. directly which has basic support for filtering nodes (currently by node 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. service port. It's not uncommon for a user to share a Prometheus config with a validrelabel_configs and wonder why it isn't taking effect. for a practical example on how to set up your Eureka app and your Prometheus additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. their API. I'm also loathe to fork it and have to maintain in parallel with upstream, I have neither the time nor the karma. In addition, the instance label for the node will be set to the node name Remote development environments that secure your source code and sensitive data Catalog API. 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. Lightsail SD configurations allow retrieving scrape targets from AWS Lightsail available as a label (see below). has the same configuration format and actions as target relabeling. This service discovery method only supports basic DNS A, AAAA, MX and SRV Monitoring Docker container metrics using cAdvisor, Use file-based service discovery to discover scrape targets, Understanding and using the multi-target exporter pattern, Monitoring Linux host metrics with the Node Exporter, the Prometheus digitalocean-sd If you use Prometheus Operator add this section to your ServiceMonitor: You don't have to hardcode it, neither joining two labels is necessary. This is most commonly used for sharding multiple targets across a fleet of Prometheus instances. way to filter containers. label is set to the value of the first passed URL parameter called . If it finds the instance_ip label, it renames this label to host_ip. communicate with these Alertmanagers. configuration file, this example Prometheus configuration file, the Prometheus hetzner-sd To view all available command-line flags, run ./prometheus -h. Prometheus can reload its configuration at runtime. The address will be set to the Kubernetes DNS name of the service and respective 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. One use for this is to exclude time series that are too expensive to ingest. Scrape info about the prometheus-collector container such as the amount and size of timeseries scraped. Please find below an example from other exporter (blackbox), but same logic applies for node exporter as well. Blog | Training | Book | Privacy, relabel_configs vs metric_relabel_configs. This will also reload any configured rule files. 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. Multiple relabeling steps can be configured per scrape configuration. instance. After relabeling, the instance label is set to the value of __address__ by default if 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. "After the incident", I started to be more careful not to trip over things. can be more efficient to use the Docker API directly which has basic support for The second relabeling rule adds {__keep="yes"} label to metrics with empty `mountpoint` label, e.g.