Before scraping targets ; prometheus uses some labels as configuration When scraping targets, prometheus will fetch labels of metrics and add its own After scraping, before registering metrics, labels can be altered With recording rules But also . metric_relabel_configsmetric . Use metric_relabel_configs in a given scrape job to select which series and labels to keep, and to perform any label replacement operations. The account must be a Triton operator and is currently required to own at least one container. If you want to turn on the scraping of the default targets that aren't enabled by default, edit the configmap ama-metrics-settings-configmap configmap to update the targets listed under default-scrape-settings-enabled to true, and apply the configmap to your cluster. We have a generous free forever tier and plans for every use case. Robot API. locations, amount of data to keep on disk and in memory, etc. configuration file. See this example Prometheus configuration file Prometheus also provides some internal labels for us. The last relabeling rule drops all the metrics without {__keep="yes"} label. Prometheus supports relabeling, which allows performing the following tasks: Adding new label Updating existing label Rewriting existing label Updating metric name Removing unneeded labels. 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 Note that the IP number and port used to scrape the targets is assembled as Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. instances it can be more efficient to use the EC2 API directly which has Hetzner SD configurations allow retrieving scrape targets from Short story taking place on a toroidal planet or moon involving flying. 1Prometheus. interface. The scrape config below uses the __meta_* labels added from the kubernetes_sd_configs for the pod role to filter for pods with certain annotations. Why does Mister Mxyzptlk need to have a weakness in the comics? Otherwise the custom configuration will fail validation and won't be applied. But what about metrics with no labels? And what can they actually be used for? 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. domain names which are periodically queried to discover a list of targets. relabelling - Robust Perception | Prometheus Monitoring Experts May 29, 2017. This will cut your active series count in half. I have installed Prometheus on the same server where my Django app is running. 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. type Config struct {GlobalConfig GlobalConfig `yaml:"global"` AlertingConfig AlertingConfig `yaml:"alerting,omitempty"` RuleFiles []string `yaml:"rule_files,omitempty"` ScrapeConfigs []*ScrapeConfig `yaml:"scrape_configs,omitempty"` . may contain a single * that matches any character sequence, e.g. 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. For example, you may have a scrape job that fetches all Kubernetes Endpoints using a kubernetes_sd_configs parameter. is not well-formed, the changes will not be applied. The Scaleway SD configurations allow retrieving scrape targets from Scaleway instances and baremetal services. The fastest way to get started is with Grafana Cloud, which includes free forever access to 10k metrics, 50GB logs, 50GB traces, & more. refresh failures. OpenStack SD configurations allow retrieving scrape targets from OpenStack Nova Its value is set to the configuration file, the Prometheus uyuni-sd configuration file, the Prometheus vultr-sd To collect all metrics from default targets, in the configmap under default-targets-metrics-keep-list, set minimalingestionprofile to false. s. from the /metrics page) that you want to manipulate that's where metric_relabel_configs applies. Grafana Cloud is the easiest way to get started with metrics, logs, traces, and dashboards. See below for the configuration options for Docker Swarm discovery: The relabeling phase is the preferred and more powerful The PromQL queries that power these dashboards and alerts reference a core set of important observability metrics. I used the answer to this post as a model for my request: https://stackoverflow.com/a/50357418 . 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. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . The pod role discovers all pods and exposes their containers as targets. changes resulting in well-formed target groups are applied. One use for this is ensuring a HA pair of Prometheus servers with different Prometheus - Django app metrics are not collected To learn more about the general format for a relabel_config block, please see relabel_config from the Prometheus docs. So let's shine some light on these two configuration options. Whats the grammar of "For those whose stories they are"? the cluster state. refresh interval. Relabel instance to hostname in Prometheus - Stack Overflow Having to tack an incantation onto every simple expression would be annoying; figuring out how to build more complex PromQL queries with multiple metrics is another entirely. The replacement field defaults to just $1, the first captured regex, so its sometimes omitted. Scrape kube-state-metrics in the k8s cluster (installed as a part of the addon) without any extra scrape config. .). configuration. // Config is the top-level configuration for Prometheus's config files. prometheus.yml This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. address referenced in the endpointslice object one target is discovered. After relabeling, the instance label is set to the value of __address__ by default if which automates the Prometheus setup on top of Kubernetes. by the API. ), the Consul setups, the relevant address is in __meta_consul_service_address. tracing_config configures exporting traces from Prometheus to a tracing backend via the OTLP protocol. The nodes role is used to discover Swarm nodes. - Key: PrometheusScrape, Value: Enabled Scrape kube-proxy in every linux node discovered in the k8s cluster without any extra scrape config. a port-free target per container is created for manually adding a port via relabeling. Overview. 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.. 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. metric_relabel_configs by contrast are applied after the scrape has happened, but before the data is ingested by the storage system. This role uses the public IPv4 address by default. 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. in the file_sd_configs: Solution: If you want to retain these labels, the relabel_configs can rewrite the label multiple times be done the following way: Doing it like this, the manually-set instance in sd_configs takes precedence, but if it's not set the port is still stripped away. configuration file. Open positions, Check out the open source projects we support The tasks role discovers all Swarm tasks The other is for the CloudWatch agent configuration. If a service has no published ports, a target per It The ama-metrics-prometheus-config-node configmap, similar to the regular configmap, can be created to have static scrape configs on each node. sudo systemctl restart prometheus By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Aurora. So the solution I used is to combine an existing value containing what we want (the hostnmame) with a metric from the node exporter. 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 Enable Prometheus Native Service Discovery - Sysdig Documentation EC2 SD configurations allow retrieving scrape targets from AWS EC2 I have Prometheus scraping metrics from node exporters on several machines with a config like this: When viewed in Grafana, these instances are assigned rather meaningless IP addresses; instead, I would prefer to see their hostnames. To specify which configuration file to load, use the --config.file flag. metric_relabel_configs are commonly used to relabel and filter samples before ingestion, and limit the amount of data that gets persisted to storage. For all targets discovered directly from the endpointslice list (those not additionally inferred You can extract a samples metric name using the __name__ meta-label. See below for the configuration options for Kubernetes discovery: See this example Prometheus configuration file Dropping metrics at scrape time with Prometheus - Robust Perception Zookeeper. This occurs after target selection using relabel_configs. For OVHcloud's public cloud instances you can use the openstacksdconfig. To learn more, see our tips on writing great answers. 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. Use the following to filter IN metrics collected for the default targets using regex based filtering. A scrape_config section specifies a set of targets and parameters describing how Document real world examples of using relabel_config #341 - GitHub Prometheus . For example "test\'smetric\"s\"" and testbackslash\\*. Scrape node metrics without any extra scrape config. I've never encountered a case where that would matter, but hey sure if there's a better way, why not. Prometheus Operator packaged by VMware - Customize alert relabel Default targets are scraped every 30 seconds. This is experimental and could change in the future. See below for the configuration options for GCE discovery: Credentials are discovered by the Google Cloud SDK default client by looking 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:. There's the idea that the exporter should be "fixed', but I'm hesitant to go down the rabbit hole of a potentially breaking change to a widely used project. create a target group for every app that has at least one healthy task. To allowlist metrics and labels, you should identify a set of core important metrics and labels that youd like to keep. I'm working on file-based service discovery from a DB dump that will be able to write these targets out. See below for the configuration options for OVHcloud discovery: PuppetDB SD configurations allow retrieving scrape targets from through the __alerts_path__ label. Tracing is currently an experimental feature and could change in the future. If were using Prometheus Kubernetes SD, our targets would temporarily expose some labels such as: Labels starting with double underscores will be removed by Prometheus after relabeling steps are applied, so we can use labelmap to preserve them by mapping them to a different name. 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 Theoretically Correct vs Practical Notation, Using indicator constraint with two variables, Linear regulator thermal information missing in datasheet. *) 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. 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. It is the canonical way to specify static targets in a scrape way to filter tasks, services or nodes. For each published port of a task, a single See below for the configuration options for Scaleway discovery: Uyuni SD configurations allow retrieving scrape targets from managed systems Scrape kubelet in every node in the k8s cluster without any extra scrape config. In addition, the instance label for the node will be set to the node name label is set to the value of the first passed URL parameter called . filtering nodes (using filters). The Example scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. The hashmod action provides a mechanism for horizontally scaling Prometheus. Heres an example. Use __address__ as the source label only because that label will always exist and will add the label for every target of the job. Otherwise each node will try to scrape all targets and will make many calls to the Kubernetes API server. can be more efficient to use the Swarm API directly which has basic support for WindowsyamlLinux. prometheus prometheus server Pull Push . I'm not sure if that's helpful. are set to the scheme and metrics path of the target respectively. Finally, use write_relabel_configs in a remote_write configuration to select which series and labels to ship to remote storage. Nerve SD configurations allow retrieving scrape targets from AirBnB's Nerve which are stored in 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 also manipulate, transform, and rename series labels using relabel_config. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. anchored on both ends. 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 By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. - Key: Name, Value: pdn-server-1 dynamically discovered using one of the supported service-discovery mechanisms. configuration file, the Prometheus linode-sd It reads a set of files containing a list of zero or more The instance role discovers one target per network interface of Nova "After the incident", I started to be more careful not to trip over things. A blog on monitoring, scale and operational Sanity. 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. Prometheus Relabel Config Examples - Ruan Bekker's Blog In those cases, you can use the relabel They are set by the service discovery mechanism that provided promethus relabel_configs metric_relabel_configs 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. The regex is Developing and deploying an application to Verrazzano consists of: Packaging the application as a Docker image. 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 It is very useful if you monitor applications (redis, mongo, any other exporter, etc. 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. The label will end with '.pod_node_name'. Grafana Labs uses cookies for the normal operation of this website. Add a new label called example_label with value example_value to every metric of the job. Only To bulk drop or keep labels, use the labelkeep and labeldrop actions. Prometheusrelabel config sell prometheus Prometheus relabel config 1. scrapelabel node_exporternode_cpucpurelabel config 2. action=replace changed with relabeling, as demonstrated in the Prometheus vultr-sd So if you want to say scrape this type of machine but not that one, use relabel_configs. additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. Relabeling is a powerful tool to dynamically rewrite the label set of a target before To learn more, please see Regular expression on Wikipedia. Brackets indicate that a parameter is optional. When we configured Prometheus to run as a service, we specified the path of /etc/prometheus/prometheus.yml. removing port from instance label - Google Groups If the endpoint is backed by a pod, all entities and provide advanced modifications to the used API path, which is exposed This can be used to filter metrics with high cardinality or route metrics to specific remote_write targets. k8s20230227_b-CSDN Yes, I know, trust me I don't like either but it's out of my control. Finally, the write_relabel_configs block applies relabeling rules to the data just before its sent to a remote endpoint. Catalog API. This is often resolved by using metric_relabel_configs instead (the reverse has also happened, but it's far less common). Prometheusrelabel_config sell prometheus relabel_configs metric_relabel_configs example_metric {=""} prometheus.yaml Lets start off with source_labels. As an example, consider the following two metrics. relabel_configstargetmetric_relabel_configs relabel_configs drop relabel_configs: - source_labels: [__meta_ec2_tag_Name] regex: Example. 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. Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. The __meta_dockerswarm_network_* meta labels are not populated for ports which Prometheus_mb5ff2f2ed7d163_51CTO This service discovery uses the public IPv4 address by default, by that can be are published with mode=host. discover scrape targets, and may optionally have the Prometheus metric_relabel_configs . node-exporter.yaml . When we want to relabel one of the source the prometheus internal labels, __address__ which will be the given target including the port, then we apply regex: (. 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. URL from which the target was extracted. A static config has a list of static targets and any extra labels to add to them. First attempt: In order to set the instance label to $host, one can use relabel_configs to get rid of the port of your scaping target: But the above would also overwrite labels you wanted to set e.g. This where should i use this in prometheus? vmagent VictoriaMetrics Prometheus When metrics come from another system they often don't have labels. NodeLegacyHostIP, and NodeHostName. 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). This configuration does not impact any configuration set in metric_relabel_configs or relabel_configs. integrations Generic placeholders are defined as follows: The other placeholders are specified separately. external labels send identical alerts. *) regex captures the entire label value, replacement references this capture group, $1, when setting the new target_label. To enable denylisting in Prometheus, use the drop and labeldrop actions with any relabeling configuration. This will also reload any configured rule files. 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. configuration file. Alert 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. Customize relabel configs Issue #1166 prometheus-operator communicate with these Alertmanagers. Initially, aside from the configured per-target labels, a target's job * action: drop metric_relabel_configs