prometheus relabel_configs vs metric_relabel_configs prometheus relabel_configs vs metric_relabel_configs

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. You may wish to check out the 3rd party Prometheus Operator, This can be In many cases, heres where internal labels come into play. Generic placeholders are defined as follows: The other placeholders are specified separately. RE2 regular expression. By default, all apps will show up as a single job in Prometheus (the one specified Consider the following metric and relabeling step. 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. See below for the configuration options for Docker discovery: The relabeling phase is the preferred and more powerful This service discovery uses the public IPv4 address by default, by that can be Prometheusrelabel_config sell prometheus relabel_configs metric_relabel_configs example_metric {=""} prometheus.yaml See below for the configuration options for Triton discovery: Eureka SD configurations allow retrieving scrape targets using the If the extracted value matches the given regex, then replacement gets populated by performing a regex replace and utilizing any previously defined capture groups. Note that exemplar storage is still considered experimental and must be enabled via --enable-feature=exemplar-storage. IONOS SD configurations allows retrieving scrape targets from Otherwise each node will try to scrape all targets and will make many calls to the Kubernetes API server. For example, the following block would set a label like {env="production"}, While, continuing with the previous example, this relabeling step would set the replacement value to my_new_label. additional container ports of the pod, not bound to an endpoint port, are discovered as targets as well. Initially, aside from the configured per-target labels, a target's job The hashmod action provides a mechanism for horizontally scaling Prometheus. [prometheus URL]:9090/targets target endpoint Before relabeling __metrics_path__ label relabel relabel static config - Key: PrometheusScrape, Value: Enabled Prometheus Authors 2014-2023 | Documentation Distributed under CC-BY-4.0. The cn role discovers one target for per compute node (also known as "server" or "global zone") making up the Triton infrastructure. for a practical example on how to set up your Marathon app and your Prometheus The other is for the CloudWatch agent configuration. OpenStack SD configurations allow retrieving scrape targets from OpenStack Nova Tracing is currently an experimental feature and could change in the future. Find centralized, trusted content and collaborate around the technologies you use most. Let's focus on one of the most common confusions around relabelling. tsdb lets you configure the runtime-reloadable configuration settings of the TSDB. May 29, 2017. users with thousands of services it can be more efficient to use the Consul API See below for the configuration options for Lightsail discovery: Linode SD configurations allow retrieving scrape targets from Linode's If a task has no published ports, a target per task is 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. Kubernetes' REST API and always staying synchronized with Let's say you don't want to receive data for the metric node_memory_active_bytes from an instance running at localhost:9100. Using a standard prometheus config to scrape two targets: This is generally useful for blackbox monitoring of an ingress. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? create a target group for every app that has at least one healthy task. Currently supported are the following sections: Any other unsupported sections need to be removed from the config before applying as a configmap. This is often useful when fetching sets of targets using a service discovery mechanism like kubernetes_sd_configs, or Kubernetes service discovery. The result of the concatenation is the string node-42 and the MD5 of the string modulus 8 is 5. This occurs after target selection using relabel_configs. "After the incident", I started to be more careful not to trip over things. After relabeling, the instance label is set to the value of __address__ by default if 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. Eureka REST API. 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 - Key: Name, Value: pdn-server-1 Since weve used default regex, replacement, action, and separator values here, they can be omitted for brevity. integrations with this 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.. 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 set of targets consists of one or more Pods that have one or more defined ports. The scrape config should only target a single node and shouldn't use service discovery. The labelmap action is used to map one or more label pairs to different label names. The extracted string would then be set written out to the target_label and might result in {address="podname:8080}. Connect and share knowledge within a single location that is structured and easy to search. PrometheusGrafana. Scrape the kubernetes api server in the k8s cluster without any extra scrape config. 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. 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. Reload Prometheus and check out the targets page: Great! You can extract a samples metric name using the __name__ meta-label. way to filter containers. A Prometheus configuration may contain an array of relabeling steps; they are applied to the label set in the order they're defined in. configuration file. Denylisting: This involves dropping a set of high-cardinality unimportant metrics that you explicitly define, and keeping everything else. Refresh the page, check Medium 's site status,. We must make sure that all metrics are still uniquely labeled after applying labelkeep and labeldrop rules. Each pod of the daemonset will take the config, scrape the metrics, and send them for that node. The endpointslice role discovers targets from existing endpointslices. the public IP address with relabeling. See this example Prometheus configuration file to filter proxies and user-defined tags. 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 my/path/tg_*.json. There is a list of Alertmanagers may be statically configured via the static_configs parameter or Which seems odd. They are set by the service discovery mechanism that provided For non-list parameters the Prometheus metric_relabel_configs . 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. Example scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. for a detailed example of configuring Prometheus for Docker Swarm. The target address defaults to the first existing address of the Kubernetes After scraping these endpoints, Prometheus applies the metric_relabel_configs section, which drops all metrics whose metric name matches the specified regex. Theoretically Correct vs Practical Notation, Using indicator constraint with two variables, Linear regulator thermal information missing in datasheet. 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. domain names which are periodically queried to discover a list of targets. for a detailed example of configuring Prometheus with PuppetDB. single target is generated. this functionality. changes resulting in well-formed target groups are applied. DNS servers to be contacted are read from /etc/resolv.conf. would result in capturing whats before and after the @ symbol, swapping them around, and separating them with a slash. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . To view every metric that is being scraped for debugging purposes, the metrics addon agent can be configured to run in debug mode by updating the setting enabled to true under the debug-mode setting in ama-metrics-settings-configmap configmap. To collect all metrics from default targets, in the configmap under default-targets-metrics-keep-list, set minimalingestionprofile to false. This role uses the private IPv4 address by default. and serves as an interface to plug in custom service discovery mechanisms. is any valid determines the relabeling action to take: Care must be taken with labeldrop and labelkeep to ensure that metrics are We have a generous free forever tier and plans for every use case. See below for the configuration options for PuppetDB discovery: See this example Prometheus configuration file Write relabeling is applied after external labels. created using the port parameter defined in the SD configuration. configuration file, the Prometheus uyuni-sd configuration file, the Prometheus vultr-sd inside a Prometheus-enabled mesh. However, its usually best to explicitly define these for readability. URL from which the target was extracted. They allow us to filter the targets returned by our SD mechanism, as well as manipulate the labels it sets. in the following places, preferring the first location found: If Prometheus is running within GCE, the service account associated with the Prometheus relabeling to control which instances will actually be scraped. This SD discovers "containers" and will create a target for each network IP and port the container is configured to expose. The CloudWatch agent with Prometheus monitoring needs two configurations to scrape the Prometheus metrics. in the configuration file), which can also be changed using relabeling. For example, if a Pod backing the Nginx service has two ports, we only scrape the port named web and drop the other. So now that we understand what the input is for the various relabel_config rules, how do we create one? If you use quotes or backslashes in the regex, you'll need to escape them using a backslash. Grafana Labs uses cookies for the normal operation of this website. locations, amount of data to keep on disk and in memory, etc. compute resources. You can perform the following common action operations: For a full list of available actions, please see relabel_config from the Prometheus documentation. Docker Swarm SD configurations allow retrieving scrape targets from Docker Swarm To review, open the file in an editor that reveals hidden Unicode characters. node-exporter.yaml . a port-free target per container is created for manually adding a port via relabeling. Add a new label called example_label with value example_value to every metric of the job. 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 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. from the /metrics page) that you want to manipulate that's where metric_relabel_configs applies. You can, for example, only keep specific metric names. Droplets API. metric_relabel_configsmetric . type Config struct {GlobalConfig GlobalConfig `yaml:"global"` AlertingConfig AlertingConfig `yaml:"alerting,omitempty"` RuleFiles []string `yaml:"rule_files,omitempty"` ScrapeConfigs []*ScrapeConfig `yaml:"scrape_configs,omitempty"` . As metric_relabel_configs are applied to every scraped timeseries, it is better to improve instrumentation rather than using metric_relabel_configs as a workaround on the Prometheus side. There is a small demo of how to use How can they help us in our day-to-day work? instances it can be more efficient to use the EC2 API directly which has It fetches targets from an HTTP endpoint containing a list of zero or more Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. 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. Each instance defines a collection of Prometheus-compatible scrape_configs and remote_write rules. One of the following roles can be configured to discover targets: The services role discovers all Swarm services Prometheusrelabel config sell prometheus Prometheus relabel config 1. scrapelabel node_exporternode_cpucpurelabel config 2. action=replace 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. Relabelling. Metric Why is there a voltage on my HDMI and coaxial cables? To bulk drop or keep labels, use the labelkeep and labeldrop actions. Open positions, Check out the open source projects we support Brackets indicate that a parameter is optional. In this scenario, on my EC2 instances I have 3 tags: Relabeling and filtering at this stage modifies or drops samples before Prometheus ships them to remote storage. 5.6K subscribers in the PrometheusMonitoring community. relabeling: Kubernetes SD configurations allow retrieving scrape targets from with this feature. 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:. For each declared Lets start off with source_labels. valid JSON. Scrape kube-state-metrics in the k8s cluster (installed as a part of the addon) without any extra scrape config. Weve come a long way, but were finally getting somewhere. If the endpoint is backed by a pod, all instances, as well as 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. metric_relabel_configs relabel_configsreplace Prometheus K8S . 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 .). Prometheus is an open-source monitoring and alerting toolkit that collects and stores its metrics as time series data. metric_relabel_configs are commonly used to relabel and filter samples before ingestion, and limit the amount of data that gets persisted to storage. And if one doesn't work you can always try the other! ), but not system components (kubelet, node-exporter, kube-scheduler, .,) system components do not need most of the labels (endpoint . Finally, this configures authentication credentials and the remote_write queue. the target and vary between mechanisms. To learn more about remote_write, please see remote_write from the official Prometheus docs. The HTTP header Content-Type must be application/json, and the body must be relabel_configstargetmetric_relabel_configs relabel_configs drop relabel_configs: - source_labels: [__meta_ec2_tag_Name] regex: Example. This The private IP address is used by default, but may be changed to view raw prometheus.yml hosted with by GitHub , Prometheus . server sends alerts to. - targets: ['localhost:8070'] scheme: http metric_relabel_configs: - source_labels: [__name__] regex: 'organizations_total|organizations_created' action . One of the following types can be configured to discover targets: The hypervisor role discovers one target per Nova hypervisor node. may contain a single * that matches any character sequence, e.g. Prometheus will periodically check the REST endpoint and create a target for every discovered server. Each target has a meta label __meta_filepath during the They are applied to the label set of each target in order of their appearance metric_relabel_configs by contrast are applied after the scrape has happened, but before the data is ingested by the storage system. of your services provide Prometheus metrics, you can use a Marathon label and Using this feature, you can store metrics locally but prevent them from shipping to Grafana Cloud. Prom Labss Relabeler tool may be helpful when debugging relabel configs. The account must be a Triton operator and is currently required to own at least one container. 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 second relabeling rule adds {__keep="yes"} label to metrics with empty `mountpoint` label, e.g.