Promtail hostname label. Only api_token and zone_id are required.

Promtail hostname label job and host are examples of static labels added to all logs, labels are indexed by I’m using rsyslog to forward messages to promtail. But I can't use label like that in relabel config, config as bellow I'm trying to install loki so that I can read logs on Grafana, but I keep receiving Data source connected, but no labels received. yaml contents contains various jobs for parsing your logs. Promtail is in global mode. I did some test, hostname is stored in env variables, but promtail is not using it for instance in promtail. Summary. I want to filter log lines with labeling using regex. Each combination of labels creates a log stream that’s used to identify the ‘chunks’. Refer to the Cloudfare configuration section for details. destination d_loki { Describe the bug References to capture groups ($1 or ${1}) in Promtail stage configurations (for example, template with regexReplaceAll) are treated as environment variables when --config. Before Promtail can ship any data from log files to Loki, it needs to find out information about its environment. 21 EKS; Argo Deployment; loki-stack Helm Chart v2. promtail_labels_env: production: Value to use in environment label in generated jobs. 1 Promtail Targets Failed. Path: Copied! Products Open Source Solutions Learn Docs Company; By default the reason label will be `drop_stage` # however you can optionally specify a I first tested it on a small batch of servers (15 total), then realized I wanted to add a HOSTNAME label. In today’s dynamic technological landscape, the efficient management of log data plays a critical role in maintaining system health, diagnosing issues, and ensuring security. Hence, my idea is to drop that label from the labelk defined in the static config and integrate it into the log line so that Loki can get it as “Detected filed”. But since the sidecars execute with "localhost" target, I don't have a kubernetes_sd_config that will apply pod metadata to labels for me. * In promtail's configuration file, add external_labels and hostname: ${HOSTNAME} (I used nodename) under client url. go:286 msg=“error initializing syslog stream” err=EOF”, The Promtail version is 2. Timestamp: One of LogRecord. So I've got Grafana/Loki up and running in a Docker container and I can see the hosts /var/logs, but I'm also trying to set it up to receive syslog streams from other devices on my network but in Grafana it's not seeing the syslog job. Its default behavior is to use the HOSTNAME field from the source message, which is convenient, but some syslog senders don’t support this properly so I need to track their IP address to ensure uniqueness. __path__: /var/log/*log. Environment: Infrastructure: Kubernetes; Deployment tool: Loki and Promtail deployed in two separate releases with Helm. Notable Changes. Looking at Promtail Service Discovery page, I can see all Kubernetes Meta labels are getting discovered, but We are using the GitHub API to get the latest release of Promtail and are filtering for the linux-and64 binary with grep. 10. Describe the bug I'm running promtail as a daemonset on OpenShift. You signed out in another tab or window. 14. - localhost labels: Hi Grafana Community, I am configuring Loki and I got stuck in the Promtail yaml configuration file. I do not see labels of facility There is -config. 0:1514 listen_protocol: tcp idle_timeout: 60s label_structured_data: yes labels: job: syslog1 relabel_configs: - source_labels: ['__syslog_message_hostname'] Attaches labels to log streams; Pushes them to the Loki instance. Server Oracle Cloud A1 ARM with Ubuntu 22. I want a single job=kuberntes-audit where I can find all my log entries. However, I have some questions. Collect logs with Promtail The Grafana Cloud stack includes a logging service powered by Grafana Loki, a Prometheus-inspired log aggregation system. File Target Discovery. Have you seen this When using Promtail for log scraping, is there a way to configure two labels with the same value based on a single regular expression? So given something I would want to add a second label some_other_label with the same value. config-promtail. Basically I want the logs to be labeled with the name of the * value. Here could I know this can work, but not efficient in deploying for different hostname for different vms. In order to receive and process syslog message into promtail, the following changes will be necessary: \n \n \n. /mynetwork/promtail/ and . 6. A detailed look at how to set up Promtail to process your log lines, including extracting metrics and labels. Additionally, I can see that messages from the promtail service on the remote host arrive at the Loki-host. hostname: At least in my case for adding an external-label for hostname, I do want it to be added to every client. So I did test by setting Loki uses Promtail to aggregate logs. clients: - url: https://loki. Helm 3 is required; Labels have been updated to follow the official Kubernetes label recommendations; The default scrape configs have been updated to take new and old labels into consideration First, it looks like your Loki cluster is working. I have a label that can get a wide range of values, but I still have to keep it in the log line for the analysis on Grafana. labels: - "mylabel=true" networks: - loki What I want to achieve: Have Promtail ignore all other containers except ones that have the Only api_token and zone_id are required. I dont necesarily want to make them into ‘labels’ as we are thinking here, but I suppose for lack of a better term - fieldnames? so could easily pick out protocol, pass/block, source/dest IP, etc. Looking at Promtail Service Discovery page, I can see all Kubernetes Meta labels are getting discovered, but The 'drop' Promtail pipeline stage. This file, typically named promtail-config. The first line in the code section I will provide here often is inlined, but in the files it is correct yaml. image 1021×59 3. [static_configs:]({{< relref ". I’ve set this up in promtail: - job_name: syslog syslog: listen_address: 0. Furtherm I recommended setting these labels in the Promtail configuration. If you pass Promtail the flag -print-config-stderr or -log-config-reverse-order, (or -print-config-stderr=true) Promtail will dump the entire config Since I've updated to promtail 2. However, the logs in Grafana Loki are still showing the original component name ("ASA") instead of the expected "Firewall". expand-env=true and put ${hostname} to promtail. yml server: http_listen_port: 9080 grpc_listen_port: 0 positions: filename: /tmp ['__journal__hostname'] target_label: 'hostname' Share Relabeling is a powerful tool that allows you to classify and filter Prometheus targets and metrics by rewriting their label set. Environment: Infrastructure: [e. Now we can test if Promtail is working. I can add the hostname by hand but I wish it was universal and didn’t need to be First, it looks like your Loki cluster is working. Promtail is configured in a YAML file (usually referred to as config. By default Promtail is running under root for now, so no need in changing this param anyhow. The performance of that is fairly poor, e. Printing Promtail Config At Runtime. Listen for syslog messages in either In your Prometheus scrape_config, do you specify your target hosts by DNS name or by IP?If you specify them with hostname:port (example: “server01:9100”), you will see hostnames in instance label values instead of IP addresses. Among other components of the Loki, there is a separate service called Collect logs with Promtail The Grafana Cloud stack includes a logging service powered by Grafana Loki, a Prometheus-inspired log aggregation system. 36_reason. tld/loki/api/v1/push Scrape_config section of config. Promtail - service discovery based on label with docker-compose and label in Grafana log explorer. They are all using port 8080 - don’t worry about port conflicts, Docker will take care of Morning! I have been running Loki for a couple of years now in the way that I just send all logs to promtail without much configuration and then do logfmt and filtering in Grafana. I ended up using the ${HOSTNAME} in the default labels for the journal config in conjunction with -config. In the Observability Toolkit I use both Promtail and OpenTelemetry Collector, so it makes sense to merge them. I am not a golang developer or an expert promtail user, but I have check the code. You can't bind the same port in two different processes. After deploying a stack file, logs from all running services are in Grafana, but after . To add more log paths I have Docker swarm of 3 nodes where are running monitoring apps (exporters, grafana, etc. As a best practice, you shouldn't setup auto detection of json fields during your log ingestion. ObservedTimestamp, based on which one is set. combine value of two lables in promtail config. It is built specifically for Loki — an instance of Promtail will run on each Kubernetes node. Mounting shared folder could similarly be done with NFS or Docker. yaml , defines how Promtail will Per documentation promtail configured with label_structured_data: yes should transform first label to to label __syslog_message_sd_junos_2636. The 'drop' Promtail pipeline stage. I am not using Promtail, instead I rely on the Loki docker plugin, the section for each service in my compose. 12: 10778: October 23, 2023 Not able to create Labels from Promtail static_configs. It seems I am missing something Zenduty Community Grafana - forcing promtail to use hostname of the machine. kubectl get pods -o wide -l app=promtail --all-namespaces NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE Describe the bug Promtail fails to interpret the syslog stream provided by syslog-ng To Reproduce Steps to reproduce the behavior: - source_labels: - __syslog_message_hostname target_label: fqdn syslog: idle_timeout: 60s label_structured_data: true labels: job: syslog listen_address: 0. Pipeline. cyriltovena pushed a commit to cyriltovena/loki that referenced this issue Jun 11, 2021. After forwarding all syslog to Promtail via UDP, nothing is caught. /configuration" >}}) can be used to provide static labels, although the targets property is ignored. jonathan November 28, 2021, 1:21am 2. service - source_labels: - __journal__systemd_unit target_label: I want promtail to parse them and send them to a Loki instance. Not sure if have more logs but it should be an issue because /var/log/ is 2G I test something like this but Generating labels from a log line using promtail and send it to grafana loki 5 promtail: transform the whole log line based on regex They can be referenced using the label name prefixed by a . The build-in webserver for the health check and the metrics endpoint, so I would suggest to find a port you want to give to promtail and configure it so promtail listens on this port on all hosts. Create a custom container entrypoint command that reads /etc/host_hostname and exports its value as the environment variable HOST_HOSTNAME. In my opinion, it's logical to have the same agent_hostname label for the promtail module. Most of them were Layer7 so I decided to gather some statistics. Body holds the body of the log. You define the JMX exporter targets (endpoints) for each node. Note that Promtail is considered to be feature complete, and future development for logs collection will be in Grafana Alloy. file, however do note that positions config is not used and only the first scrape config is used. yaml) which contains information on the Promtail server, where positions are stored, and how to scrape logs from files. 7. So when the Grafana Agent is deployed, Promtail is not used at all. However, since Loki only supports Log body in string format, we will stringify non-string values using the AsString method from the OTel collector lib. job and host are examples of static labels added to all logs, labels are indexed by Loki and are used to help search logs. So I am trying to add Kubernetes Node name to my labels. All metrics from promtail configs come with instance=127. Tool of choice was Grafana. external-labels to add external labels to your loki client config. "warn"))? From what I can tell, the reason there is a different label for each A Docker image providing Promtail for Beach and other purposes - flownative/docker-promtail Configure Promtail. yaml in Docker container, don't forget use docker volumes for What happened: IHello, I use promtail to distributed syslog message to loki and visualize them by Grafana. Helm 3 is required; Labels have been updated to follow the official Kubernetes label recommendations; The default scrape configs have been updated to take new and old labels into consideration Hello everyone! I am currently stuck with some logQL query I want to achieve. It's just a label. Using Promtail and Loki to collect your logs is a popular choice. Below are the primary functions of Promtail: Discovers targets; Log streams Configure Promtail. I browsed a lot of examples on line, and none of them seem to work when I include it in my Promtail YAML file. My setup is like this: a promtail that receive logs through syslog and forward it to loki. There is -config. I use Promtail to collect logs from my VMs and send them to Loki. yml. Have you seen this We have a few hundreds switches and routers which syslog back to two central archive logging servers using UDP 514, Debian bare-metal based running syslog-ng. Dev an stg containers contains _<env>_ in their container name, so for dev its _dev_ and for stg its _stg_. In pipe mode Promtail also support file configuration using --config. To access Grafana, create a service with grafana-service. Each entry is labeled with the hostname of the OpenShift node and I only run one replica of promtail on each node. 1 LTS Docker version 20. Promtail is a logs collector agent that collects, (re)labels and ships logs to Loki. yml configuration file. 3" networks: loki: services: loki: image: grafana /loki:k88-c660a7e # Prints debug output to stdout build: . Describe the bug I get out of memory, i have some servers 4G of memory for some reason i get out of memory very fast one of them. yml server: http_listen_port: 9080 grpc_listen_port: 0 positions: filename: /tmp ['__journal__hostname'] target_label: 'hostname' Share Does including the case-insensitive flag (?i) in the regex in the config not give you a (static) label you can reference in a query (e. expand-env in the extra arguments (Thank you X) Environment: Kubernetes v1. The purpose of this post is to explain the value of Prometheus’ relabel_config block, the different places where it can be found, and its usefulness in taming Prometheus metrics. Alloy is an open source distribution of the OpenTelemetry Collector, but is will also replace Promtail. I am unable to do LogQL queries based on hostname or any type of query based on facility. Here is my promtail config file : # -- Overrides the chart's name Grafana Service. 1:9615 label which is pretty useful in case of multiple nodes. For a log aggregation system that is built around labels it is weird to me that I can't add la Example integration of a Kafka Producer, Kafka Broker and Promtail producing test data to Grafana Cloud Logs - grafana/grafana-kafka-example Skip to content Navigation Menu I'm trying to install loki so that I can read logs on Grafana, but I keep receiving Data source connected, but no labels received. logging; grafana-loki; promtail; Share. Additionally, we also have to specify the host For example, I'm using FreeBSD jails to nullfs mount my logs from other jails into a promtail jail. 0 Helm chart for Grafana Loki and Grafana Enterpr grafana/loki-canary 0. /mynetwork/loki/ directories for their respective configuration files. Given there's no path key provided, Work around (not the solution) is to enable insecure_skip_verify: true to ignore cert verification issue. 1) receiving syslog messages and forwarding them to loki, and I believe this is where severity="informational" is coming from - see syslog_message. __address__ label is not visible inside grafana. relabel_configs: - source_labels: Yes you can do that with static_config, you will need to use Promtail's pipeline stages to parse the logs and extract the required information to create the labels. service - source_labels: - __journal__systemd_unit target_label: Notable Changes. I tried latest, 2. target_label: 'hostname' - source_labels: ['__syslog_message_app_name'] target_label: 'appname' pipeline_stages: - match: selector: '{appname="nginx Hi All, I have installed promtail as a binary and loki, grafana running as docker compose containers. This is a problem for the OpenBSD and Ubiquiti gear on my home network. I’ve tried different regex methods i’ve found but anything I try keeps Grafana Agent service from starting. However sometimes after restart it working correctly. Check Image ---> For anyone else with this issue, resolved it via using %H in the systemd service file. It does not index the contents of the logs, but rather a set of labels for each log stream. I have 2 pods running and both of them are running on separate nodes. 04. Verify that Loki and Promtail is configured properly. scrape_configs contains one or more entries which are executed for each Best practice with Loki is to create as few labels as possible and to use the power of stream queries. How can I remove the label before sending the logs to Loki? Which finally fixed my problem. To Reproduce Steps to reproduce the behavior: Started Loki (SHA or version): 2. conf file is . It has been replaced by the Grafana Agent. This is the scrape job in question: Let us unpack this. Your last attempt (with | json) is recommended approach, as it's not recommended to parse labels on promtail's side, and instead parse them while querying from Loki (exactly what | json does here). ${HOSTNAME} will not resolve in systemd but %H will grab the hostname. Click on the Dashboards icon and then on the New button, New Dashboard. Is there a way to do this without having to re-parse the log just to give the capture group a different I want Promtail to discard logs that contain the word "connection". This leaves the problem of how to Scraping configs ⚑. current promtail config is partly this one: # which logs to read/scrape scrape_configs: - job_name: docker-logs I am mounting this NFS volume on my promtail nodes, and using static_config to scrape the file. Often Loki hangs on labels request. host: yourhost # A `host` label will help I'm trying to set up promtail to send logs from a series of servers to a centralized loki server, and it seems that on all servers promtail will start, labels: job: varlogs. Promtail does work via scraping the local logs sorted via syslog but this is not ideal for labelling. 0:1514 Hi, I have the same problem here. Is there a way to do this without having to re-parse the log just to give the capture group a different I’ve got promtail set up to take syslog from syslog-ng, as I have dozens of centos 5 hosts that I can’t set up the promtail client on. 8. It proves an API for adding and querying logs, and can be queried via a Grafana web interface. In our docker-compose. So I'm stuck statically declaring my labels. If you are going to run on ECS, you should run Promtail in DAEMON mode (one count per host), in which case you can uniquely identify the Promtail container through EC2 instance ID. However the fact that these messages have {app="loki-linux-amd64",service_name="loki-linux-amd64",severity="informational"} suggests that either there is a loop (loki is eating its own # List the available Loki Charts in the Grafana Repository helm search repo loki # Shell output: NAME CHART VERSION APP VERSION DESCRIPTION grafana/loki 6. yml and added another label, then re-ran my promtail installation on the entire fleet (including the servers I tested the install on first). external-labels=hostname=$(hostname) but I couldn’t get that to This two must be shown in Log Labels: sync_pair =17743b1b-a067-4478-a6d8-7b1cff04175a JobId =dc8dc0dd-fdb9-4873-af55-1c70ba2047a5 . need something like hostname:${HOSTNAME} in promtail config file or promtail --external-labels=hostname=${HOSTNAME} in promtail startup I’m using the latest promtail and loki and trying to use your static_configs example but I’m not getting the labels pushed to Loki all I see below. , this query {host="k3s-master"}. Use whatever IP address you want below. ljw885967 May 11, 2023, 7:51am 4. Basic understanding of Amazon EC2 user data. looking at my firewall dashboard for more than now()-6h - now() is all but impossible. yml looks like this: This will add labels k1 and k2 with respective values v1 and v2. This one works: scrape_configs: - job_name: grafana entry_parser: raw static_configs: - Hi Grafana Community, I am configuring Loki and I got stuck in the Promtail yaml configuration file. yaml:. Is there any obvious way I'm missing to have promtail calm down on the memory usage on startup? Can someone check my promtail config, for some reason I'm only seeing the varlog job inside of Grafana and not the docker or syslog jobs server: http_listen_port: 9080 grpc_listen_port: 0 positions: - source_labels: ['__syslog_message_hostname'] target_label: Is your feature request related to a problem? Please describe. service, containerd. Within a few minutes, all of my hosts were streaming Syslog from my network into Loki and explorable within Grafana ! Hi all, the Promtail I set is throwing the error: “caller=transport. 2. (nothing fro I have promtail (2. I have the following setup: version: "3. Describe the bug Hi thanks for Loki, but I fail to use it to get journald logs. 4: 1495: July 11, 2024 Promtail relabel_configs issue. On some systems, a lot of session-<some-string>. I recommended setting these labels in the Promtail configuration. You should instead leverage LogQL parsers to extract your json fields and Hi, how to force promtail to use hostname of the machine? I tried -client. Each logfile or group of logs will get its own job_name as well as a job label. Second, you mention that you don't have a label for "user", which is correct, because you are not parsing your logs in promtail and making user a label. If you pass Promtail the flag -print-config-stderr or -log-config-reverse-order, (or -print-config-stderr=true) Promtail will dump the entire config And then I start promtail with the flags --config. Besides specifying the user uid and gid as well as the container_name and hostname, nothing really fancy. This means that you are not required to run your own Loki environment, though you can ship logs to Grafana Cloud using Promtail or another supported client if you maintain a self-hosted Loki environment. promtail is configured using a scrape_configs stanza. 79. I edited the config-promtail. go. Proper secure solution: get used CA certificates from security guys and make it available ca_file for the promtail in the container. However, the result is: client: external_labels: | instance: "" instance_id: "" The variables are not replaced as expected. Its default behavior is to use the HOSTNAME field from the source message, which is convenient, but some syslog senders Since I may have 10 to 20 hostnames and a dozen of apps, I set _ _ path _ _ to /applogs/**/*. Label Name - All labels recognized by Loki ( In my case I select env label name ) Label Value - All available values for selected label name ( In my case I selected voidquark as a label value. 4. Reload to refresh your session. 0 2. __path__ it is path to directory where stored your logs. 3; Question I can easily define this regex for instance: &?([^=]+)=([^&]+) but cannot be applied in regex pipeline since it works only with named groups. I did some test, hostname is stored in env variables, but promtail is not using it for instance in I would like to filter logs by specific node's hostname - I know it is possible to to manually set labels inside promtail-local-config. output if not define,it will send original log content to loki. It follows the provided target relabeling rules at relabel_configs section. I also want to collect logs from appliances where it’s more difficult to deploy Promtail. job: systemd-journal relabel_configs: - source_labels: - __journal__hostname target_label: hostname # example label values: kubelet. yaml +++ b/charts/promtail/values Contribute to grafana/helm-charts development by creating an account on GitHub. expand-env: labels: host: ${HOSTNAME} but I get hostname container. If both are not set, the ingestion timestamp will be used. There are 4 types of stages: Parsing stages parse the current log line and extract data out of it. 1 Helm chart for Grafana Loki Canary grafana/loki-distributed 0. You want to ensure you primarily use static labels, sparingly use dynamic labels, and never use unbounded labels. Pass the host’s /etc/hostname into the container as /etc/host_hostname. All gists Back to GitHub Sign in Sign up Sign in Sign up You signed in with another tab or window. I modified the service file to exec the command with the -config. A pipeline is used to transform a single log line, its labels, and its timestamp. So, if you see that the target contains unexpected labels or doesn't contain expected labels or the target is completely dropped, then the first thing to do is to look at relabel_configs section for the particular target. This is what is going to be used by Promtail to know what to scrape, i. 0 Description: I'm trying to relabel the component name in my Promtail configuration based on a log keyword using regex. You can see this pair in There is -config. I tried added hostname as a label with the flag -config. This Hi, is there any best practice for using static_configs for multiple files. When I now look via grafana into the logs and needs to filter for one virtual container output I have no hint for the docker container name. yaml but it does not seem as a good solution to me, as hostname can be changed in the future etc*. I am not sure which programming language you are using so I can't give you sample code but I am assuming you have this output as some sort of string variable - so you can just iterate through this string and memorize locations of the } symbol - when found one just record its position to variable and rewrite it each time when this } In Grafana, on the explore tab, you should now be able to view your host’s logs, e. Grafana. b4835990 100644 --- a/charts/promtail/values. But promtail is not pulling the hostname from the env variable. - localhost labels: # -- Overrides the chart's name nameOverride: null # -- Overrides the chart's computed fullname fullnameOverride: null global: # -- Allow parent charts to override registry hostname imageRegistry: "" # -- Allow parent charts to override registry credentials imagePullSecrets: [] daemonset: # -- Deploys Promtail as a DaemonSet enabled: true autoscaling: # -- Creates a . I've got a self-hosted Promtail/Loki/Grafana setup in multiple docker containers that is collecting syslogs from everything, Label metadata in Loki has to be treated carefully. file flag at the command line. I have tried to parse the JSON i was able to extract the req but i don't know how to parse the nested one in promtail I have a probleam to parse a json log with promtail, please, can somebody help me please. But just the other day, I stumbled over promtail pipelines and When using tihs example to collect logs, this configuration doesn’t work (Configure Promtail | Grafana Loki documentation) scrape_configs: - job_name: system pipeline_stages: static_configs: - targets: - localhost labels: job: varlogs # A `job` label is fairly standard in prometheus and useful for linking metrics and logs. I've now applied this on all Promtail-ed machines. logs: positions_directory: C:\\ProgramData\\grafana-agent\\log-positions configs: - So I am trying to add Kubernetes Node name to my labels. Logs are collected from all containers in the swarm cluster without the need to install additional software on the nodes in the cluster. In Promtail’s configuration, set the host label to the HOST_HOSTNAME environment variable. image 1424×398 28. This is a label; setting it to 192. 45 doesn't mean logs will be fetched from that host. In promtail, you can use --client. The When using tihs example to collect logs, this configuration doesn’t work (Configure Promtail | Grafana Loki documentation) scrape_configs: - job_name: system pipeline_stages: static_configs: - targets: - localhost labels: job: varlogs # A `job` label is fairly standard in prometheus and useful for linking metrics and logs. yaml index 56d5cccd. promtail_main_cfg_template: promtail-main-cfg. Grafana Labs Promtail is an agent that ships local logs to a Grafana Loki instance, or Grafana Cloud. (for example,. You can see this pair in This little blog got quite a few DDoS attacks in the past months. Additionally, I recommend reading This little blog got quite a few DDoS attacks in the past months. Expected behavior??? Is this an unused config value when running static? Configuration Files Create a Promtail configuration file specifying the log file paths, labels, and Loki server details. 1. This works fine however I'm not interested in the filename label that is being generated from __path__. Helm 3 is required; Labels have been updated to follow the official Kubernetes label recommendations; The default scrape configs have been updated to take new and old labels into consideration Since I've updated to promtail 2. This would have been great because I wanted to use the node labels for the log output. 0, I'm unable to read the content of a log file in loki. 1 Promtail/ Loki - Empty results, no matching Promtail is an agent which ships the contents of local logs to a Loki instance. 0. Personally I’ve not found the need to uniquely identify the Promtail container. 7 KB. Skip to content. I am trying to label all logs that come out of a folder with the name of the folder. Promtail version: 2. The configuration snippet is like this scrapeConfigs: | - job_name: syslog1 syslog: listen_address: 0. Loki is a scalable log storage engine which is simple to install and run. Reference: Whether you're just starting out or have years of experience, Spring Boot is obviously a great choice for building a web application. journal: max_age: 12h. Still unsure how to How to add the values of multiple labels and assign them to another label in promtail config? - job_name: journal. For example, my TrueNAS storage server, and my pfSense router/firewall. Is there any obvious way I'm missing to have promtail calm down on the memory usage on startup? For example, I'm using FreeBSD jails to nullfs mount my logs from other jails into a promtail jail. It turns out that promtail does not retrieve all the information including some containers and namespace. expand-env=true and I can save the hostname in env variable. host: hostname. Is there a way to use the IP for the host label and the hostname in another custom label like hostname ? I can Hello, we are collecting logs from Promtail to Loki and visualize them in Grafana (we do not use Kubernetes). For example, when I try tailing logs of other pods, the only option I see is loki-canary as seen below: I am currently running this stack on a rke2 cluster, and I am using Apr 22 11:23:07 <hostname> promtail stale bot added the stale A stale issue or PR that will automatically be closed. For example the following template will output the value of the path label: template Copy `{{ . destination d_loki { For general information about Grafana Loki, see the Grafana Loki: architecture and running in Kubernetes with AWS S3 storage and boltdb-shipper post. It becomes the obvious one, - labels: level: hostname: name: scope: msg: 7. I don't want the local mount location (/mnt/logs/<hostname>) to show up as part of the path. I can view the logs in Loki. Hostname. Review the promtail syslog-receiver configuration documentation \n \n \n. I am a static_labels: node_hostname: "${HOST_HOSTNAME}" Contribute to SpiritoLucas/promtail development by creating an account on GitHub. config: snippets: extraScrapeConfigs: | # Add an additional scrape config for syslog - job_name: journal journal: path: /var/log/journal max_age: 12h labels: job: systemd-journal relabel_configs: - source_labels: - __journal__hostname target_label: hostname # example label values: kubelet. Port 80 is the standard HTTP port. My problem: I don't see any labels in my log entries. Hi there, thanks for your reply! I have read that about the labels already so that makes sense. Subsequently, we unzip the archive and move it to a place that is in our PATH. The Promtail container configuration is also straight-forward. Improve this question. A pipeline is comprised of a set of stages. 20, Configuring Loki. This is the relevant portion of my promtail conf: I’m using rsyslog to forward messages to promtail. The amalgamation of Promtail with the pipelineStages configuration of JSON stage should have generated the log labels named level, method and module, in the same way as it worked using the configuration with Regex and logfmt line output. j2: j2-tempalte to use for main configuration file generation. relabel_configs allows for fine-grained control of what to ingest, what to drop, and the final metadata to attach to the log line. The syntax is identical to what Prometheus uses. We use promtail to scrape the systemd journal and label the logs by systemd unit. , Promtail is considered to be old-fashioned by the Grafana team. apiVersion: v1 kind: Service metadata: name: grafana-lb spec: selector: app: grafana ports: - protocol: TCP port: 3000 targetPort: A Docker image providing Promtail for Beach and other purposes - flownative/docker-promtail How can I get logs from docker events to Promtail? I'm using Docker to run a set of containers on my server, and I would like to __systemd_unit target_label: systemd_unit - source_labels: - __journal__hostname target_label: hostname - source_labels: - __journal_syslog _identifier target_label: syslog on a machine not named foobar 😄 Service Discovery shows __address__="foobar", but logs are pushed to loki correctly. In the syslog configuration of promtail, we can extract, as label, the different information from the syslog message like : severity code, facility code, app_name, ip, etc. Solution: Create a simple converter/forwarder using syslog-ng. log entry: {timestamp=2019-10- Hi, how to force promtail to use hostname of the machine? I tried -client. 0. (nothing fro I have some kubernetes applications that log to files rather than stdout/stderr, and I collect them with Promtail sidecars. Furtherm Scrape_config section of config. Hi everyone, I have been working on implementing a Grafana Stack (Loki, Promtail, Tempo and Prometheus) to monitor some Kubernete clusters and it is my first time working with Loki and Promtail, so in the process I have encountered some issues about scraping logs from the pods. Promtail discovers locations of log files and extract labels from them through the scrape_configs section in the config YAML. For example: I have a probleam to parse a json log with promtail, please, can somebody help me please. * When using Promtail for log scraping, is there a way to configure two labels with the same value based on a single regular expression? So given something I would want to add a second label some_other_label with the same value. 2 it does not handle journal logs at all Expected behavior A clear and concise description of what you expected to happen. 3. target_label: 'unit' - source_labels: ['__journal__hostname'] target_label: 'hostname' Feel free to change the relabel_configs to match what you would use in your own environment. The relabeling in Promtail takes the hostname of the sending device into syslog-ng and turns it into a host label for Loki to index. I want to tail multiple logfiles from various locations. You switched accounts on another tab or window. 8. Skip to main content. scope becomes unit=session. label_name). My HAProxy reverse proxy requires a syslog server for activity logs. Replace Promtail with new Grafana Alloy. From that, i would like to create labels for method, URL, host i have tried the JSON expression like below in promtail. scope units with very few logs are generated, which cause a lot of nearly-empty log chunks to be created. It is also possible to choose an additional label set. Discovered labels __address __path job. 87 KB. log I have relabel setup as below, I get “**” as label hostname and “*” as label Promtail looks for a host label on each target and validates that it is set to the same hostname as Promtail's (using either $HOSTNAME or the hostname reported by the kernel if the Am I going about rewriting the message content wrongly here, or is there a problem with internal labels being used on replace or template stages? I have prepared configuration that calls twice geoip and sets custom labels, but result is that geoip always sets its own labels, and always for the last instance in pipeline. ) per evironment (dev, stg and prd). g. My containers are web applications, so I wanted to create some labels for things like, IP address, Status Code, etc, but ever since I updated my config, I keep getting these errors in the Hello, I’m experimenting with loki and I think it is great. Promtail Docker Compose File I am sorry I was not completely clear. To this end, it suggests that even a small number of labels combined with a small number of values can cause problems. We are logging to journald, so I'm using the journal promtail scraper. - skl256/grafana_stack_for_docker Configuring Promtail Promtail is configured in a YAML file (usually referred to as config. and I can find default in promtail default label like ‘__meta_docker_container_id’,but I think promtail not send label to loki. For those cases, I use Rsyslog and Promtail’s syslog receiver Hi everyone, I have been working on implementing a Grafana Stack (Loki, Promtail, Tempo and Prometheus) to monitor some Kubernete clusters and it is my first time working with Loki and Promtail, so in the process I have encountered some issues about scraping logs from the pods. Monitoring and Observability. Prd containers does not have environment contained in the name of container. Finally, we tell Promtail where our log file is located via the __path__ parameter. Trying to get EC2 labels added to logs. Syslog -ng service is running and the configuration that i have given in syslog-ng. It is typically deployed to any machine that requires monitoring. This is useful, particularly for e. Is there a way to This is extremely confusing. No much else you can do apparently? \n. Final Configuration result. It all works in principle, but in Grafana the log [__syslog_message_facility] target_label: facility - source_labels: [__syslog_message_hostname] target_label: host - source_labels: [__syslog_message_severity] target_label: level - source But, promtail only accepts newer RFC 5424 ("IETF") formatted syslog messages and rejects RFC 3164 ("old", "BSD") formatted messages. Much of the content here also applies to Grafana Agent users. This is my current config. 0 Add label with regexp from container name in promtail. expand-env=true to use environment variable references in the configuration file and --print-config-stderr to get a quick output of the entire Promtail config. Hello everyone, I am new to Grafana, and I am currently trying to set up a PLG stack, but whenever I start everything up and go to explore the Loki data source, all I see are the logs from loki-canary. Is there any other way to dynamically achieve this? In fact Promtail is quite short on dynamic label/fields handling, the only feature we are using related to this is the labelmap relabel config. Jmix builds on this highly powerful and mature Boot stack, allowing devs to build and deliver full-stack web applications without having to code the frontend. Only api_token and zone_id are required. Select Add a new panel. Compared to other log aggregation systems, Loki: does not do full text indexing on logs. 5. service-source_labels:-__journal__systemd_unit target_label: unit # example label values: debug, notice, info, I have working configuration in Promtail which processes syslog messages and forwards to loki. For example, when I try tailing logs of other pods, the only option I see is loki-canary as seen below: I am currently running this stack on a rke2 cluster, and I am using I am new to Promtail. Creating a logs dashboard from scratch. yaml file we have added two labels to our application: the logging and the logging_jobname labels, with values promtail and container_logs, respectively. 0:1514 idle_timeout: 60s Check out the . 6 Helm chart for Grafana Loki in microservices Can someone check my promtail config, for some reason I'm only seeing the varlog job inside of Grafana and not the docker or syslog jobs server: http_listen_port: 9080 grpc_listen_port: 0 positions: - source_labels: ['__syslog_message_hostname'] target_label: Hi All, I have installed promtail as a binary and loki, grafana running as docker compose containers. I use Loki with promtail in Docker Swarm to get the logs from containers on 3 hosts. Perhaps, the next part of the message will help you to solve the problem. Log file discovery. domain. promtail_labels_instance "{{ inventory_hostname }}" Ready stack of Grafana, Prometheus, Pushgateway, Loki, Promtail for collecting and visualizing logs from docker swarm, docker compose and docker services. stale bot closed this as completed Jun 10, 2021. Adds support to S3 I am pushing syslog log to Promtail and visualise it in Grafana. Currently, Promtail can tail logs from two sources: local log files and the systemd journal (on ARM and AMD64 machines). Promtail labels. There is agent_hostname label in node_exporter integration which can be relabeled to instance vial metrics_relabel_configs. label Jun 2, 2021. 9. 168. yaml b/charts/promtail/values. Therefore when scraping syslog it would seem sensible to not create labels for all syslog internal fields. How can we rewrite the label value based on a regext, so that unit=session-abc123xyz. e. scope? Hey, I had configured Loki and Promtail to grab the logs for my docker containers. I’d like to pass the hostname variable from the host OS to the promtail docker so that I can use the hostname OS label rather than the container hostname. 2 Started Promtail (SHA or version): 2. The Grafana service I've put together below uses metal lb so that we can map it to a local network IP address. I try many configurantions, but don't parse the timestamp or other labels. Cheers. {log_level: "warning"})?Or are you trying to have a single 'match' rule with a dynamic log_level label that is normalized (lowercased & expanded abbreviations (e. The Hey, my setup is the following: Rsyslog listening on port 514 listening for relayed messages with spooling, transforms the log into the right format and relays them to port 1514 promtail (as container) listening on port 1514 processing the logdata and sending it to loki loki (also as container) My problem with this setup is that promtail doesn’t seem to preserve the want to extract service logs from syslog using Promtail and Loki and visualize them in Grafana, organized by server. path }}` This webinar focuses on Grafana Loki configuration including agents Promtail and Docker; the Loki server; and Loki storage for popular backends. Once Promtail has a set of targets (i. Can you copy/paste the configuration(s) that you are having problems with? scrape_configs: job_name: syslog static_configs: targets: localhost labels: job: syslog host: “${HOSTNAME}” path: /var/log/syslog pipeline_stages: regex: I narrowed it down to the journal being used in the scrape_config. Configure the promtail helm chart with the syslog configuration added to the extraScrapeConfigs section and associated service definition to listen for syslog messages. 3. , what logs to collect, and how to relabel them. Refer to the official Loki Label Best Practices for further information on each point. 2 3. In this guide, we’ll walk through the process of setting up a monitoring and logging system in a Docker Swarm cluster. 2. An announcement was made at GrafanaCON. promtail. LogLine: LogRecord. These hosts send to the host, which are picked up and converted to the proper log format and then are sent to promtail on port 1514. This means that you are not required to run your own Loki environment, though Data source connected, but no labels received. system static_configs: - targets: # Target hostname. Both of which output RFC 3164 syslog messages. Promtail config for syslog and extract labels from nginx logs - promtail. Starting netcat on the remote host and sending messages to port 9200 of the Loki-host causes them to show up in tcpdump. 0 (branch: HEAD, revision: 1a2b3c4d) Sample Log: Yes, indeed. I hope this helps but if someone knows how to fix labelling via the Promtail config, that would still be very helpful to know as an alternative since there's a limit to dynamic labels before they start making querying too heavy. If you run promtail and this config. Alloy is introduced in the family of Grafana tools. I had some tags on my docker containers and was able to create labels from them no problem. Promtail borrows the same service discovery mechanism from Prometheus. host: yourhost # A `host` label will help There is -config. It uses the exact Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You signed in with another tab or window. hostname - labels: tag: hostname: loik and promtail version is 2. 1: 738: I run successfully a centralized loki logging for several docker servers with multiple images running on them. These are my log lines: [DEBUG]: Starting the application [PROCESS]: Trying a division [WARNING]: dividing by zero(0) might Hello , I am writing Promtail syslog receiver of (Pfsense)Openvpn logs and normalize them into lables the log line example as follows below including my Promtail config, i managed to get most of my desired data into labels, but i would like to set Generating labels from a log line using promtail and send it to grafana loki. My logs have a structured-metadata with a section eventID=xxxx I want to create a logQL query that can retrieve this eventID but I don’t want to labelize this eventID as it is high cardinality. The file is written in YAML format, defined by the schema Describe the bug I'm running promtail as a daemonset on OpenShift. I want Promtail to discard logs that contain the word "connection". I started to scrape individual log files instead. I would like to filter logs by specific node's hostname - I know it is possible to to manually set labels inside promtail-local-config. The result gets piped to wget in order to download the zip file. TimeUnixNano or LogRecord. We used the job label for our test above. I'm trying to set up promtail to send logs from a series of servers to a centralized loki server, and it seems that on all servers promtail will start, labels: job: varlogs. , things to read from, like files) and all labels are set How to add variable hostname label to static_config in Promtail? Grafana Loki. log entry: {timestamp=2019-10- Perhaps there is a creative solution I am not thinking of. Otherwise you can add more labels in the Prometheus configuration. scrape_configs contains one or more entries which are executed for each Contribute to dsweil/Promtail-UserData development by creating an account on GitHub. 0 Problems using logfmt time in promtail-loki-grafana. Promtail Version: promtail-linux-amd64 version 2. external-labels , but it does not work. I think pipeline_stages. 0 и main grafana/loki versions - issue still there. Navigation Menu (IP or hostname required). Loki is like Prometheus, Prometheus doesn't drop labels for discovered targets on its own. How do I get the hostname added as a label when using “static_config”? I have tried starting promtail with --client. How to filter logs in Grafana-Loki? We used the job label for our test above. diff --git a/charts/promtail/values. With this tutorial, you’ll learn how to set up Promtail on EKS to get full visibility into your cluster logs while using Grafana. This setup ensures Hi there, thanks for your reply! I have read that about the labels already so that makes sense. How to Use the Script. Configuration File Reference To specify which configuration file to load, pass the --config. Network Monitoring & Management. I am playing with Grafana and Promtail. When we create the actual dashboard, we also need to use the service_name label; it was built in the way shown above to match PMM’s Service Name identifier. Grafana Loki. expand-env=true Promtail parameter is used. Quite flexibly as well, from simple web GUI CRUD applications to complex loik and promtail version is 2. . Generating labels from a log line using promtail and send it to grafana loki 5 promtail: transform the whole log line based on regex Hey there! The static_configs key in Promtail (and the Agent by extension) is used to specify a static list of paths to read logs from by using the __path__ and __path_exclude__ keys. I’m in a kubernetes environment and have deployed loki/promtail via their helm charts. gqga nezpn qhcj eppa qrobs wysxu fxqhyiqsy dssle lmlbwdyq rgddd