Prometheus add hostname label example. TLS and basic authentication. The file is written in YAML format , defined by the scheme described below. yml. Feb 1, 2022 · The generator defaults to SNMP v2, and public as the community string; we have included these for the example below. The Prometheus Node Exporter exposes a wide variety of hardware- and kernel-related metrics. e. scrape_interval: 15s. Brackets indicate that a parameter is optional. 100. See docs for count () aggregate function. I would like to have an option to create a sort of array in the Prometheus configuration and the values of that array in the new label. Before starting Prometheus, let's configure it. - 10. naming conventions, differently. Use labels to add semantic information. evaluation_interval: 15s # Evaluate rules every 15 seconds. config. Whenever the alert expression results in one or more vector elements at a given point in time, the alert counts as active for these elements' label sets. Configuration is specified in the gcplog section, within scrape_config. The following binary arithmetic operators exist in Prometheus: + (addition) - (subtraction) * (multiplication) / (division) % (modulo) ^ (power/exponentiation) Binary arithmetic operators are defined between scalar/scalar, vector/scalar, and vector/vector value pairs. First things first. First navigate to the directory containing the Node That last part takes the label prometheus-job of the task and turns it into a target label, overwriting the default dockerswarm job label that comes from the scrape config. You can scrape the multiple targets in prometheus. Adjust other data source settings as desired (for example, choosing the right Access method). my_metric{label="a"} 1 my_metric{label="b"} 6 my_metric{label="total"} 7. Here is the example of our usage : variable Dec 1, 2022 · 1. Gauge: A gauge metric can increase or decrease. Base units. See here for more authentication examples. This answer explains how to export node name via node_name label at node_meta metric. Usually this would be set on the Prometheus side as either the instance label (using DNS to map the hostname to an IP) or using static labels. This example shows a single node configuration running ceph-mgr and node_exporter on a server called senta04. The dashboard will have two different sections: 1. Jan 14, 2021 · Name of the ServiceMonitor to create. Labels are used to add context and meaning to metrics, which makes it easier for users to query and analyze data. The response is consumed as is, unmodified. The former breaks for people who do a sum() over your metric, and the latter breaks sum and is quite difficult to work with. Default is every 1 minute. prometheus-metrics-instrumentation-jvm provides out-of-the-box JVM metrics. +"} That will give you everything where group starts with "misc group". metrics_path: '/metrics'. 0. '10. QUESTION? How to query prometheus to have sum of “disk bytes read” by instance/node/server Jun 21, 2022 · It is not possible to bind the servers by an user friendly URL/hostname. – Mar 16, 2021 · Hi Lili, Thank you for looking into this. This documentation is open-source. /prometheus --help usage: prometheus [<flags>] The Prometheus monitoring server . Even after the dashboards are loaded, when we change a variable, we again wait for seconds. I'm adding serves to my prometheus config like this: - job_name: cluster1. Jul 24, 2021 · I. Mar 7, 2023 · Add more static instance labels in prometheus config. Cannot retrieve latest commit at this time. We can run the binary and see help on its options by passing the --help flag. (The out-of-the-box generator default configuration file has this plus many other examples to help you get started. You switched accounts on another tab or window. The four types of metrics collected by Prometheus as part of its exposition format include Counters, Gauges, Histograms, and Summaries. The Prometheus data source plugin provides the following functions you can use in the Query input field. instance 1: 1. - job_name: gamelet-smoba honor_timestamps: true metrics_path: /metrics scheme: http Jan 22, 2019 · Here are some examples of a Prometheus Grafana dashboard. This will match all that is misc group. Click on "Add data source". Once we have the right metric coordinates captured, it’s time to create our first Prometheus Grafana dashboard. The label_replace() copies the label_a value to label_b for all the series returned at step 2. replacement: ". I'm currently working on setting up Kubernetes monitoring in another monitoring system that doesn't have a query language similar to PromQL and doesn't allow joining metrics. Nov 5, 2020 · How does it work: it extracts instance label value (see source_labels list above), applies the given regex to it, then generatesreplacement string ($1 is substituted by the part of instance label that is matched by regex part in the first parenthesis), and then puts the replacement string into target_label. all independent metrics that match the regex above will show as a separate metric not all as Aug 4, 2021 · Joins in PromQL. For example, the following config would add machine_name label to the scraped metrics from the given statically defined targets: scrape_configs: - job_name: node_info. Install and configure Prometheus. Apr 3, 2024 · Go to the Graph tab. label_joins: object: optional: none: The label join allows you to target a metric and retrieve its label using a 1:1 mapping Aug 14, 2020 · We are heavily using the function of "label_values"in our dashboards. kubectl apply -f additional-scrape-configs. Install Prometheus node_exporter. Feb 21, 2020 · You can notice that here we have labels allowing us to have a match between an instance IP address (10. g. I need to extract foo value to the new label "hostname" and then add add port value ":9100" to ip and assign it to target_label: instance. May 7, 2016 · our prometheus config is maintained by chef, and uses the simple <target_group> config option. In this example, we will add the group="production" label to the first group of targets, while adding group="canary" to the second. Below is an example of a working generator. 1'] labels : instance : OPS-Zabbix-Server Feb 14, 2018 · 0. I want to build up dashboard panels and alerts for these targets in Grafana, but with the goal that in the dahboards and alerts were not displayed the IPs of the hosts but their hostnames. This is just an example: there are other ways to configure prometheus scrape targets and label rewrite rules. If the labels are added, I can drop the labels datacenters, dc_areas and functions again. To use TLS and/or basic authentication, you need to pass a configuration file using the --web. The Blackbox Exporter supports TLS and basic authentication. The rule blocks are applied to the label set of each metric in order of their appearance in the configuration file. static_configs: Alerting rules. // explained in examples. I tried to use code bellow, but unfortunately it doesn’t work. Because the namespace labels on the alerts generated from the (remote) promtheus instances don't match the alertmanager namespace, the alerts aren't routed to the receiver due to the namespace mismatch. Search for the metric process_cpu_usage and Prometheus will create a chart from it: Micrometer captured the CPU usage of the JVM process. If i have nodeexporter deployed as containers on several machines, is there no way to add the hostname as one of the fields that is sent to prometheus? the examples here resolve to the name of my container service as defined in the docker-compose, not the hostname itself. For example, if you have a metric that measures the number of requests per second, adding labels such as “environment” (e. regex: "-". - server2. Source and Statistics 101. 👉. By mastering the basics covered in this cheat sheet, you'll be well-equipped to explore and analyze your monitoring data effectively. . I have a few file_sd configs with targets in format 'ip hostname' e. 8) and an instance name (node2). Then in the above link it says. With this I have the hostname in the label host. 11. Click the Grafana Logo to get the side toolbar, and then click “+” followed by “Dashboard”: Sep 1, 2022 · For example, the following relabeling rule replaces all the - chars with . it returns the number of distinct values for a label per each 5-minute interval by default - see staleness docs for details about 5-minute interval. Alerting rules allow you to define alert conditions based on Prometheus expression language expressions and to send notifications about firing alerts to an external service. Returns a list of label names. yml and restart your Prometheus instance: For an introduction to templating and template variables, see Templating and Add and manage variables. I have configured all my servers behind a hostname and I want to scrape metrics from all the servers in one period. We wait for the dashboards to load approximately 30 secs or more. # my global config global: scrape_interval: 15s # Set the scrape interval to every 15 seconds. example. 0. For the label I'm trying to add a hostname, so I have a result like: # HELP cmd_result Shows the cmd result # TYPE cmd_result gauge cmd_result{host="my_device_hostname"} 1. Monitoring Linux host metrics with the Node Exporter. A snippet: - job_name: 'redis'. I wanted to send them on every metric, but they suggested it is faster / more efficient to do it with host tags. Aug 9, 2019 · For example this is what I used to do for kubernetes-cadvisor exporter to set a label on static_config, so that my custom label was displayed on all the metrics collected by my exporters on ingestion time: scrape_configs: - job_name: prometheus. expand-env in the , then env variables in the promtail config with the following syntax : labels : host: ${HOSTNAME} 👍 10. This can be useful in Prometheus rule evaluations, since it lets you generate a new metric for a series by appending labels from another info metric. ##. To specify which web configuration file to load, use the --web. com Sep 4, 2021 · Adding a "host" label to all of your per-host Prometheus metrics. For people trying to add hostname as a label, you can use the flag -config. prometheus. file parameter. Only users with the organization administrator role can add data sources and edit existing data sources. into eg. 29 lines (24 loc) · 934 Bytes. Prometheus Operator v0. There is a label in common between the two metrics “node_meta” and “node_disk_bytes_read”: instance. answered Jul 18, 2017 at 2:57. Basics. Apr 29, 2022 · kubectl create secret generic additional-scrape-configs --from-file=prometheus-additional. Dec 10, 2020 · Each of those prometheus instances sends the alerts to a common alertmanager instance. Between two scalars, the behavior is obvious: they evaluate to another scalar Jan 14, 2022 · 1. yml file. Promtail supports scraping cloud resource logs such as GCS bucket logs, load balancer logs, and Kubernetes cluster logs from GCP. ## If no label is specified, the service name is used. yaml -n monitoring. additionalLabels: ## Service label for use in assembling a job name of the form -. Oct 8, 2017 · Normally you would run 1 exporter per server, and on the Prometheus side the instance-name's would be how you filter (or you could append labels at the Prometheus end). Then created the secret using the below command. Reload to refresh your session. PromQL supports the ability to join two metrics together: You can append a label set from one metric and append it to another at query time. ) Aug 16, 2018 · E. Administrators can also configure the data source via YAML with Grafana’s provisioning system. 5k 2 37 43. Getting Started. GCP Log scraping. For example, an API server job with four replicated instances: job: api-server. Jul 18, 2017 · 16. Please help improve it by filing issues or pull requests. To achieve this, add the following job definition to the scrape_configs section in your prometheus. 1. 10. Counter: A counter metric always increases. params: collect[]: - foo - bar This can be useful for having different Prometheus servers collect specific metrics from nodes. Drop# In order to drop the above-mentioned metrics, we need to add metric_relabel_configs in Prometheus scrape config with the metric name we need to drop : Oct 27, 2020 · We do this so we can have the hostname in the legend without the fqdn and port appearing which is entirely redundant for these metrics since they’re always coming from the same service within a cluster. This example selects only those time series with the http_requests_total metric name that also have the job label set to prometheus and their group label set to canary: http_requests_total{job="prometheus",group="canary"} It is also possible to negatively match a label value, or to match label values against regular expressions. Oct 14, 2019 · Each cluster have a region label value. Each unique combination of key-value label pairs is stored as a new time series in Prometheus, so labels are crucial for understanding the data’s cardinality Summary. The check is named <NAMESPACE>. The GET request contains a X-Prometheus-Refresh-Interval-Seconds HTTP header with the refresh interval. Prometheus Operator already does an awesome "automagic" with relabeling, but lack of ability to make any customization — is it good or bad? For now, Prometheus Operator adds following labels automatically: endpoint, instance, namespace, pod, and service. or this: my_metric{label="a"} 1 my_metric{label="b"} 6 my_metric{} 7. One of the things I've come to believe about labels on Prometheus metrics is that all metrics for a particular host should have a label for its hostname. I actually have 3 GCP kubernetes clusters with prometheus operator installed on each of them. A collection of instances with the same purpose, a process replicated for scalability or reliability for example, is called a job. For some metrics like kube_pod_container_resource_requests_cpu_cores or kube_pod_info my labels Apr 29, 2022 · kubectl create secret generic additional-scrape-configs --from-file=prometheus-additional. metric_name_thismetrictype {“instance”=“hostname:port”} value. yaml. Mar 21, 2022 · 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. WesselAtWork mentioned this issue on Oct 18, 2022. yml Apr 25, 2017 · Is there a way to use metric_relabel_configs or a recording rule to calculate the hostname and then place it into the instance label? I'm wondering this because I have my prometheus setup to scrape localhost for prometheus metrics but it would be nice if localhost was replaced with an actual host name. You have the option to use several different variable types, but variables of the type Query will query Prometheus for a list of metrics, labels, label values, a query result or a series. Note that this requires one to add an appropriate and unique instance label to each node_exporter target. Together with standard labels from. Problem. Oct 19, 2017 · For example: Consider a Prometheus 1. The example shows a counter metric named payments_total with two labels: status and type. Example scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. Click on "Data Sources". ktsaou closed this as completed on Feb 6, 2018. 4. Aug 28, 2019 · 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. Histogram: A histogram metric can increase or descrease. Create a Prometheus Grafana Dashboard. static_configs: - targets: - server1. 12 foo'. Then it is possible to add node_name label to any metric exposed by node_exporter with group_left() modifier during querying. prometheus. 919256141363144e-76 In Prometheus terms, an endpoint you can scrape is called an instance, usually corresponding to a single process. " action: labelmap_all replaces all the regex occurrences in all the label names with the replacement. Each individual data point (each line in text format) is identified by the unique combination of its metric name and its label name/value pairs. Every such time series is stored separately on the Prometheus node in the form of an Metric and label naming. For example, the following PromQL query adds node_name label from node_meta metric to node_memory_Active_bytes metric: Feb 7, 2017 · Doesn't seem like it. 10:5555. 11:5555. You'll likely need to check out disk and memory stats on the underlying node, but can't if the only information you have about each running pod is {instance="localhost:9090"} . Sep 17, 2020 · 1. Dec 11, 2020 · Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. The cadvisor service exposes port 8080 (the default port for cAdvisor metrics) and relies on a variety In Prometheus configuration you can use this syntax under the scrape config. This configuration instructs Docker Compose to run three services, each of which corresponds to a Docker container: The prometheus service uses the local prometheus. target_groups: - targets: - 10. Start up a Prometheus instance on localhost that's configured to scrape metrics from the running Node Exporter. The format of the file is described in the exporter-toolkit repository. prometheus-metrics-exporter-httpserver is a standalone HTTP server for exposing Prometheus metrics. in hostname label name: - action: replace_all. Individual organizations may want to approach some of these practices, e. Variable of the type Query allows you to query Prometheus for a list of metrics, labels, or label values. From this chart, we can observe the performance of the application. In this example are seven relabeled steps. , a time series in Prometheus is defined by a combination of a metric name and a particular set of key-value labels. Jul 1, 2022 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. scrape_timeout: 15s # Timeout after 15 seconds. Oct 27, 2018 · I mocked up this example, so I could post it here. We do use relabel_configs for some of our metrics, but this Nov 8, 2021 · It works in the following way: The count(is_up) by (label_a) counts is_up series grouped by label_a. Loki - Journal Config Hostname Label Clutter with Initial Network Setup #7454. If you need to calculate the number of unique values for a label over custom interval (for example, over the last day), then the following PromQL query must be used instead: This topic walks you through the steps to create a series of dashboards in Grafana to display system metrics for a server monitored by Prometheus. It is now a standalone open source project and maintained independently of any company. Once you’ve added the Prometheus data PromQL is a versatile and powerful query language that empowers users to extract valuable insights from Prometheus metrics. Query Functions: rate - The rate function calculates at what rate the counter increases per second over a given time window. Total num_cpu for region2 = 2. exe on Microsoft Windows). If you implement an HTTP SD endpoint, here are a few requirements you should be aware of. static_configs: - targets: ['localhost:9090'] labels: kubernetes_namespace: kube-system. I would like get the sum value of vmware_host_num_cpu for all clusters in the same region based on the cluster_name of each hypervisor and the region label of cluster. 3. label_to_hostname: string: optional: none: Override the hostname with the value of one label. Nov 14, 2018 · 6. In this guide, you learned how the multi-target exporter pattern works, how to run a blackbox exporter with a customised module, and to configure Prometheus using relabeling to scrape metrics with prober labels. Configure Prometheus for Grafana. Grafana and Prometheus: Download Prometheus and node_exporter. Static label example: - job_name : ' windows ' static_configs : - targets : ['192. health. Try this way: global: scrape_interval: 15s # Scrape targets every 15 seconds. Send a service check reporting on the health of the Prometheus endpoint. relabel is to filter Prometheus metrics or standardize the label set that is passed to one or more downstream receivers. Yes, in Prometheus we have a way to make joining two metrics less complex for the end-users. Configuring Prometheus This tutorial shows the quickest way to get started with the Prometheus Java metrics library. Relabeling is a powerful tool to dynamically rewrite the label set of a target before it gets scraped. Viewed 1k times. // Remember, there are default values for each item if it's missing. Code. To demonstrate this, start up a second Node Exporter instance on port 9200. Jan 29, 2018 · And this option add new metric for host with specified values, but I meant - add custom labels to every metric, that exported by netdata, This was a choice of the prometheus maintainers. The configured rules can be retrieved by calling the function in the rules May 1, 2022 · You signed in with another tab or window. The Prometheus server is a single binary called prometheus (or prometheus. The easiest approach to add labels to targets defined in static_configs section is to use labels section - see these docs. I'm ultimately not going to pull "date +%s" for the command. com. Side note 2: Values are always floating-point numbers; timestamps are integers storing the number of milliseconds since the Unix epoch. 17. Asked 1 year, 2 months ago. Apr 26, 2019 · 5. However, I would like to add a label with the server ID or the hostname, to make the graphs easier to read. * but not group by. x instance that is entering "rushed mode" periodically. Remember, this blog post only scratches the surface. Select "Prometheus" as the type. Modified 1 year ago. The Prometheus Operator’s goal is to make running Prometheus on top of Kubernetes as easy as possible, while preserving Kubernetes-native configuration options. This is one of the out-of-the-box metrics that Micrometer exposes. Discovered labels The Prometheus Documentation contains the full list of labels, but here are other relabel configs that you might find useful. yaml --dry-run -oyaml > additional-scrape-configs. The count(is_active) by (label_b) counts is_active series grouped by label_b. Use query variables. all independent metrics that match the regex above will show as a separate metric not all as Jun 29, 2022 · The second important part is the relable_configs part. Prometheus supports basic authentication and TLS. History. 168. The metric and label conventions presented in this document are not required for using Prometheus, but can serve as both a style-guide and a collection of best practices. - server3. Aug 18, 2021 · metric_name {instance"=“hostname:port”,“type”=“thismetrictype”} value. For example, the following relabeling rule When using Prometheus' file-based service discovery mechanism, the Prometheus instance will listen for changes to the file and automatically update the scrape target list, without requiring an instance restart. Metric names. , production or staging) and “service” (e. Returns a list of label values for the label in every metric. Explore Teams Feb 8, 2024 · Relabelling allows users to modify or filter labels associated with scraped metrics before they are stored in the time-series database. 12. There are two kind of scraping strategies: pull and push. (well, the “type=thismetrictype” can of course also remain in the label section, it does not have to be removed there). This enables better control of the various HTTP endpoints. See full list on grafana. You can use a regex query: my_metric{group=~"misc group. scrape_timeout: 10s. As we have millions of metric and values are in every metrics, the load of variables and also dashboards are too heavy. Jul 11, 2023 · Specifically, you need to ensure that the cardinality of your label sets isn’t too high or you’ll overwhelm Prometheus. Since its inception in 2012, many companies and organizations have adopted Prometheus, and the project has a very active developer and user community. On each refresh interval (default: 1 minute), Prometheus will perform a GET request to the HTTP SD endpoint. (e. Some client libraries, for example Go, will actively try to stop you doing The most common use of prometheus. # Attach the label monitor=dev-monitor to all scraped time series scraped by this server. Oliver. In my example, result should be : Total num_cpu for region1 = 14. // which means the user added prometheus. source_labels: [hostname] target_label: hostname. io/scrape: true in the service's annotation. Apr 14, 2022 · Prometheus Metrics. In very special cases, however, where the new label perfectly correlates with a specific set of existing label values, it is possible to add additional labels without increasing cardinality and while keeping Prometheus happy. These metrics are collected using a pull model where Prometheus scrapes HTTP endpoints that expose these metrics. #- name: ## Additional labels to set used for the ServiceMonitorSelector. src. Example of Scrape Configuration: scrape_configs: - job_name: 'prometheus'. Nothing fancy, and works fine. 4:5670 Monitoring Linux host metrics with the Node Exporter. Just can't figure out where to add labels. 2. relabel_configs: - source_labels: [__address__] Jul 18, 2017 · 16. I'm trying to figure out how to add extra environment labels to all metrics in order to explicitly know from which cluster the metrics are coming from. When I config as following: scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. Gradle implementation Apr 1, 2022 · Let’s assume we decided that we want to drop prometheus_http_request_duration_seconds_bucket & prometheus_http_response_size_bytes_bucket metric, as it’s of no practical use to us. It's been on my mind to let the exporter work a bit more like the blackbox_exporter and let prometheus drive it remotely, but that would still be very similar. Labels. yml configuration file (imported into the container by the volumes parameter). To create a Prometheus data source in Grafana: Click on the "cogwheel" in the sidebar to open the Configuration menu. This is experimental and might change in the future. 1. , web server This topic walks you through the steps to create a series of dashboards in Grafana to display system metrics for a server monitored by Prometheus. Dependencies We use the following dependencies: prometheus-metrics-core is the actual metrics library. This guide will show you how to deploy the Prometheus operator, set up a Prometheus instance, and configure metrics collection for a sample application. You signed out in another tab or window. . In this guide, you will: Start up a Node Exporter on localhost. For instructions on how to add a data source to Grafana, refer to the administration documentation . Jun 12, 2020 · How do I configure prometheus (currently using the coreos operator if that matters), to keep only app=foo and drop the label baz, so that I end up with: some_metric{app="foo"} For what it's worth, here's what I currently have and the labels are showing up as is: - action: keep sourceLabels: ["app"] regex: "foo" - action: labeldrop regex: "baz" Learn more about bidirectional Unicode characters. file flag. 0, Prometheus v2. ## the chart. up hz ur du hg ug wt zr du ci