Promtail timestamp template The name of the capture group will be used as the key in the extracted map. This example of config promtail based on original docker config and show how work with 2 and more sources: Filename for example: my-docker-config. This involves injecting a few dashes, colons etc at specific locations in the string read from the log file. This webinar focuses on Grafana Loki configuration including agents Promtail and Docker; the Loki server; and Loki storage for popular backends. This will print timestamp in local date and time format. scrape_configs contains one or more entries which are executed for each Hello everyone, I seem to be a bit clueless I want to push the log data from our Citrix Netscalers into Grafana Loki. When a timestamp stage is not present, the timestamp of a log line defaults to the time when the log entry is scraped. In the Query field, enter your LogQL query, {job="docker I'd guess it's related to the various other problems around the Unix timestamp reaching 1600000000 – jonrsharpe. I specifically need to re-format a date so it will be recognised as such by Loki. Use the captured group as source. The Use the last known timestamp for the unparsable log line, since it's permissable to have mutliple log lines with the same timestamp. Promtail borrows the same service discovery mechanism from Prometheus. Read Nginx Logs with Promtail Read Nginx Logs with Promtail Table of contents Video Lecture Description Using the Loki Pattern Parser Sample Nginx Dashboard Troubleshooting Spaces versus Tabs Change Email Alert Template Create Telegram Contact Point Users and Roles Teams Organizations Grafana Cloud Hi, We are using grafana and loki in kubernetes. user: marco; Using a JMESPath Literal The only way is to change log configuration of the application which is generating the logs, to use a unique access. Provide details and share your research! But avoid . In order to force the use of the timestamp from your log line instead, you need to parse the timestamp expression in your Examples to help you run Grafana Loki. . A pipeline is a possibly chained sequence of “commands”. drop. The user should have following roles to complete the setup. 000000-07:00 I suspect it’s because -07:00 is not listed in the Promtail timestamp stage documentation, so I’m trying to use a template stage to remove the colon from the timezone and parse the I have set up Loki Distributed using the official helm charts. # Value is optional and will be the name from extracted data whose value # will be used for the value of the label. myString }} will give me the length of myString. Click “Add new panel”. Commented Sep 18, 2020 at 8:08. Printing Loki config at runtime If you pass Loki the flag -print-config-stderr or -log-config-reverse-order , (or -print-config-stderr=true ) Loki will dump the entire config object it has created from the built-in defaults combined first with overrides from config file, and second by overrides from flags. This part of the Promtail configuration provides it. ECS is the fully managed container orchestration service by Amazon. pipeline_stages: - logfmt: mapping: time: - timestamp: source: time format: RFC3339 Hi. It is a CNCF graduated sub-project under the umbrella of Fluentd. In this directory you will need 2 files: promtail-config. Regex, Grafana Loki, Promtail: Parsing a timestamp from logs using regex. user: marco; Using a JMESPath Literal Hi andrejshapal, sorry for the problem. Instead of getting the Unix timestamp form the log entry (which could have possibly worked), I decided to use 'time' as the timestamp, and modified the yaml as follows: {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/clients/promtail/stages":{"items":[{"name":"README. yaml and my config are good starting points. Then the first stage will extract the following key-value pairs into the extracted map: user: alexis; message: hello, world!; The second stage will then add user=alexis to the label set for the outgoing log line, and the final output stage will change the expression needs to be a Go RE2 regex string. In my company we have an existing Grafana, Loki Stack and push already some logs from k8s, apache etc. stack_trace -}}' # data tag used as chunk of the log - output: Promtail has a couple of flags that make experimenting with configuration changes quite convenient. Environment: Infrastructure: docker containers of Promtail, Loki and Grafana; Deployment tool: docker; Screenshots, Promtail config, or terminal output See attached file for promtail and docker-compose config files the solution was in loki config file. decolorize: Strips ANSI color sequences from the log line. Nice. template. In this section, I also marked a few labels that not comes out-of-the box e. Assumptions. Below is the snippet of my Promtail configuration: Hi,I am using the promtail component for log collection,Examples of logs are as follows: 2023-08-30 10:14:56,274 INFO datanode. end-to-end solutions. log files. It extracts all log data and forwards the content to Loki. 996248ms err="rpc error: code = Code(400) desc = entry with timestamp 2020-04-05 16:39:11 +0000 UTC I have a lot of VMs so this is pretty populated. Promtail Installation Pull-based subscription: Promtail pulls log entries from a GCP PubSub topic; Push-based subscription: GCP sends log entries to a web server that Promtail listens; Overall, the setup between GCP, Promtail and Loki will look like the following: Roles and Permission. For the given pipeline: But when running promtail and checking the logs in Loki, the line timestamp is always the time when promtail exported the logs, but not the actual time of the event from the json timestamp field. promtail: Fix parser for azureeventhubs message without time field . metrics. By default, the positions file is stored at /var/log/positions. print-config-stderr Dump the entire Loki config object to stderr --clymene-promtail. So that’s why I integrated Most labels are meta information that Promtail adds during scraping targets. Path: Copied! Dashboard templates. Saved searches Use saved searches to filter your results more quickly Scraping configs ⚑. 939 from your example. My objective is to transform the free-form ones to the same logfmt as the others, independent of any other labeling. The events are pushed with “windows_events” and i succuesfully put the level in to a label The timestamp in my loglines contains a timezone field: Jan 7, 2022 3:00:00 AM CET FINE log message one I'm trying to timestamp these using this configuration: - timestamp: source: msgTimeStamp format: Jan 2, 2006 3:04:05 PM MST However Unlike most stages, the docker stage provides no configuration options and only supports the specific Docker log format. 772490867Z caller=grpc_logging. If the value extracted is a complex type, its value is extracted as a This is perfectly fine, except that you have to do it on each and every task, which can quickly become burdensome, especially if your logging configuration changes one day, and you need to be on Docker Engine 20. I want to manipulate the syslog format to enhance Loki performance, but fail to make the template stage work properly. 2. API. at Promtail, Grafana Agent or Grafana Allow. A log line can look like this: 227320 20200519T232044. file promtail. I've refined the Promtail Recent Logs panel, streamlining its design for improved readability. md","path":"docs/sources/clients/promtail/stages I've already spend almost a day trying to get a proper timestamp from nginx logs in JSON format to be sure I can see can't get timestamp from JSON log with promtail #3694. As explained earlier in this topic, this happens when the file is truncated before Promtail reads all the log lines from such a file. log file with following line [1/10/22 23 Hi, I deployed promtail with helm chart to receive syslog from rsyslogd and send them to Loki. Contains a message and @timestamp fields, which are respectively used to form the Loki entry log line and timestamp. 0. It works fine. For the examples we are using the kube-prometheus-stack and the loki Loki Promtail Timestamp Parser I am trying to parse this timestamp from within my Jellyfin logs: 2021-03-13 00:29:45. date is the date extracted from filen Promtail is an agent which reads log files and sends streams of log data to the centralised Loki instances along with a set of correct the timestamp or entirely rewrite the log line sent to Loki. What I want to match, using regex, is the second timestamp present there, since its a utc timestamp and should be parseable by promtail. When trying to set the log entry pipeline as part of a pipeline, promtail complains about “extracted data did not contain a timestamp”. Promtail has access to the log folder of the host machine. Unlike most stages, the cri stage provides no configuration options and only supports the specific CRI log format. 0’, fromhost-ip: ‘X. Log Timestamp. I am in New York. My promtail config looks like this VBA needed: create timestamp when cell on another sheet changes value upvotes Each template has a parameter name, which specifies the template name, and a parameter type, which specifies the template type. selector: <string> # Names the pipeline. The Power of Ansible, Jinja2, and Go-Templates in Streamlining DevOps Workflow. To do this, I intended to use the following path: Netscaler → rsyslog → promtail → Loki The logs from the Netscaler are not properly formatted and look like this in raw form: Debug line with all properties: FROMHOST: ‘X. 1 create a test. I looked in the syslog logs and there is a timestamp, then the hostname, followed by the application, then process ID, then it gets to the actual log (what was provided above). Each log line from Docker is written as JSON with the following keys: log: The content of log line; stream: Either stdout or stderr; time: The timestamp string of the log line; Examples. Log Line. 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 Substitute localhost:9428 address inside clients with the real TCP address of VictoriaLogs. yaml) which contains information on the Promtail server, where positions are stored, and how to scrape logs from files. you could instead not do this and let Promtail assign a timestamp to the log lines. Every log that comes from Promtail comes with a timestamp that is set by Promtail, since Promtail is running on UTC, the timestamp on the logs is also in UTC. When a timestamp stage is not present, the timestamp of a log line defaults to the I have a logfile, which has only the time inside. grafana-loki; Considerations. Action stages: timestamp: Set the timestamp value for the log entry. nameOverride: null # -- Overrides the chart's computed full name fullnameOverride: null # -- Image pull secrets for Docker images imagePullSecrets: [] loki: # Configures the readiness probe for all of the Loki pods readinessProbe: httpGet: path: /ready port: http initialDelaySeconds: 30 timeoutSeconds: 1 You signed in with another tab or window. Adding more workers, decreasing the pull range, or decreasing the quantity of fields fetched can mitigate this performance issue. Or you can hopefully fix it in the application itself. For numbers smaller than 100,000,000 the concatenation will display a wrong result The first stage would create the following key-value pairs in the set of extracted data: output: log message\n; stream: stderr; timestamp: 2019-04-30T02:12:41. Not covered: Deployment of the Promtail container. md","path":"docs/sources/clients/promtail/stages Loki uses Promtail to aggregate logs. querier: Propagate query stats from quantile & topk queries . If you want to customize output, you can modify print_timestamp in following way: import time def print_timestamp(timestamp): Promtail will keep track of the offset it last read in a position file as it reads data from sources (files, systemd journal, if configurable). span_id }}] Thread[{{ . 123456 [blabla] I want to read timestamp from the log line. Now it seems that the tpl change creates this conflict with the template stage which itself uses Go template syntax. Sometimes it may be needed overriding the set of these fields. Pusher/Push duration=6. Prometheus should be configured to scrape Promtail to be able to retrieve the metrics configured by this Dashboard templates. 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. Even the timestamp is clean for both: The log that if ignored: job:remotelogs Start promtail with dry-run and config-file below (binary, not container) check output. File Target Discovery. Describe the bug Not able to parse timestamp with a custom format which has a colon : before fraction of seconds. 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 I want to parse a timestamp from logs to be used by loki as the timestamp. I was trying out your config suggestion with the template, but it seems it only works when nanoOfSecond is 9 digit long. 1. This allows to cleanly separate pipelines through different push endpoints. The 'multiline' Promtail pipeline stage. Please refer to the template stage for how to do this. The current timestamp for the log line. The static_labels stage would add the provided static The timestamp stage is an action stage that can change the timestamp of a log line before it is sent to Loki. Before we dive into the setup, Elasticsearch query examples for beginners. So, You can try this way. Combined with Fargate you can run your container workload without the need to provision your own compute resources. md Setup rsyslog in k3s with promtail chart. See the instructions here. leavel, class, thread. But only almost. yaml This will Sign in. uploading local logs to Only api_token and zone_id are required. tenant-id string Tenant ID to use when pushing logs to Loki. 1. conf user myapp; error_log In this case, these will be: Promtail, Loki, and json: expressions: timestamp: time_iso8601 - timestamp: source: timestamp format: RFC3339 action_on_failure: 'skip' # In Only api_token and zone_id are required. Im a total noob when it comes to regex. That means the actual payload (log line) pushed to my qryn I have managed to convert the given timestamp into a RFC3339 format. It is possible for Promtail to fall behind due to having too many log lines to process for each pull. In your example, it I've tried the setup of Promtail with Java SpringBoot applications (which generates logs to file in JSON format by Logstash logback encoder) and it works. stream-lag-labels string Comma-separated list of labels to use when calculating stream lag (default "filename") --clymene-promtail. Description: The ECR image URI to pull and use for lambda-promtail. If the custom format has no year component specified, Promtail will assume that the current year Generally parsing timestamp comes in two stages if you are using regex: Regex group capture the timestamp part. You switched accounts on another tab or window. Promtail features an embedded web server exposing a web console at / and the following API endpoints: GET /ready. Asking for help, clarification, or responding to other answers. On the test server, I have set tenant_id before installing and connecting Promtail from the second Use following syntax in template: {{ timestamp|print_timestamp }} Where timestamp = 1337453263. Let’s say I have a little Describe the bug Promtail 2. Because of how YAML treats backslashes in double-quoted strings, note that all backslashes in a regex expression must be escaped when Configure Promtail. I have promtail to send the logs, and in our application we have all json logs with the timestamp of the format: 2023-09-05T21:52:19. It’s important to note that if you provide multiple options they will be treated like an AND clause, where each option has to be true to drop the log. The 'static_labels' Promtail pipeline stage. File metadata and controls. The final value for the timestamp is sent to Loki. The type parameter specifies different template types. Solutions. You can use a different property for the log line by using the configuration property message_field. scrape_configs contains one or more entries which are executed for each Run the Promtail client on AWS ECS. g. just don’t reject samples. match: # LogQL stream selector and line filter expressions. Action stages can modify this value. It is built specifically for Loki — an instance of Promtail will run on each Kubernetes node. The labels stage would turn that key-value pair into a label. To start I would recommend you to parse for only timestamp so your logs are written with the correct time. Reload to refresh your session. Template pipeline syntax. message }}{{- . I was able to debug this by running Promtail is distributed as a binary, in a Docker container, or there is a Helm chart to install it in a Kubernetes cluster. querier: Correct _extracted logic in {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/clients/promtail/stages":{"items":[{"name":"README. A couple examples of how this stage can be used are listed in the Promtail configuration overview. I have a log file in /dir/20240829/logfile with lines in the form: 09:54:13. pack: Packs a log line in a JSON object allowing extracted values and labels to be placed inside the log line. For example, the following config instructs using only the Unlike most stages, the cri stage provides no configuration options and only supports the specific CRI log format. In your regex for some reason timezone was not a part of group timestamp. Hello! I am trying to parse some log data created by a command line tool for debugging purposes. This is the default that I am trying to override. The syntax is identical to what Prometheus uses. 2. Matrix types are only returned when running a query that computes some value. yaml. I have this sample log below with typical syslog labels like app_name, facility, severity and so on I want to put some of those labels into the log I am trying to modify a string using Promtail’s template pipeline stage. Prometheus exporters. 10:00:47 ℹ jib → Configuring provider 10:00:47 jib → Provider configured 10:00:47 jib → Provider ready . For example, if you wanted to remove the labels container and pod but still wanted to keep their values you could use this stage to create the following output: Provides LogQL query examples with explanations on what those queries accomplish. {app="loki"} |= "level=error" is proving to be just as fast for many of our applications as {app="loki",level="error"}. Some Loki API endpoints return a result of a matrix, a vector, or a stream: Matrix: a table of values where each row represents a different label set and the columns are each sample values for that row over the queried time. But i am stuck with the scraping of Windows events in particular (we have a german windows systems btw). pack. md Fluent Bit. Every capture group (re) will be set into the extracted map, every capture group must be named: (?P<name>re). The current promtail. It turns out that 03 in the time format string references 12h (am/pm) format, whereas my logfile contains the hour of the day in 24h format. It’s difficult to do this from the text files and sometimes openhab stops being happy due to platform issues (low on RAM). Timestamp field is not affected by location parameter; Expected behavior The timestamp should be affected by location field in some way, or not? Even for timestamps with timezone information does not affect timestamp at all. /bookmark. Install the binary. 141 content My promtail config: pipeline_stages: - multiline: fir The default behavior of Promtail is to assign a timestamp to logs at the time it read the entry from the tailed file. Type: String. To Reproduce Steps to reproduce the behavior: Install Promtail 2. yaml config server: http_listen_port: 9080 grpc_listen_port: 0 pos Promtail example extracting data from json log. DataNode (BlockReceiver. A polling mechanism combined with a copy and truncate log rotation may result in losing some logs. The primary ones here are -stdin and -dry-run . promtail: Validate scrape_config job name, do not allow duplicate job names . I found this discussion, but I can't make it work. Every named capture group (?P<name>re) will be set into the extracted map. Promtail is a logs collector agent that collects, (re)labels and ships logs to Loki. log instead of the schema of the access-xxxx-xx-xx. I've tried different approaches, but just couldn't get it right at all. GitHub Gist: instantly share code, notes, and snippets. The default behavior of Promtail is to assign a timestamp to logs at the time it read the entry from the tailed file. blob: f816ecaf2f80d46670333be5579b406445b89278 [] [] [] [] Each template has a parameter name, which specifies the template name, and a parameter type, which specifies the template type. 5 Feb. The first stage would extract stream into the extracted map with a value of stderr. go:38 method=/logproto. Rewriting labels by parsing the log entry should be done with Post implementation we have strayed quit a bit from the config examples, The 'drop' Promtail pipeline stage. 29-1625995456331:blk_1102843442_29109253, type=HAS_DOWNSTREAM_IN_PIPELINE, downstreams=2:[172. This endpoint returns 200 when Promtail is up and running, and there’s at least one working target Dashboard templates. Format Matrix, vector, and stream. md","path":"docs/sources/clients/promtail/stages {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/sources/clients/promtail/stages":{"items":[{"name":"_index. I made this change only to allow us to be able to use the regex stage in promtail, and this suggestion looked like a way to make it work (at least it works for my use case, but I'm only using regex). labels: # Key is REQUIRED and the name for the label that will be created. The name of the capture group will be used as the key in the extracted map. It uses the exact same service discovery as Prometheus and support similar methods for labeling, transforming, and filtering logs before their ingestion to Loki. This would result in duplicate log lines being sent to Loki; to avoid this issue, if your tailed file has a timestamp embedded in the log lines, a timestamp stage should be added to Additionally you can also access the log line using the __line__ function and the timestamp using the __timestamp__ function. This webinar focuses on Grafana Loki configuration including agents Promtail and Docker; the Verify the last timestamp fetched by Promtail using the cloudflare_target_last_requested_end_timestamp metric. Value " " "T" 1}}' - template: source : timestamp template: '{{ Replace Recent Logs Panel . Initialized to be the text that Promtail scraped. Promtail uses polling to watch for file changes. In this tutorial we will see how you can leverage Firelens an AWS log router to forward all your logs and your workload metadata to a Grafana Loki (default 500ms) --clymene-promtail. I tried escaping the @ with an entity, single and double quoting the value, but Promtail kept rejecting {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/sources/clients/promtail/stages":{"items":[{"name":"_index. Users must parsing your log with LogQL after writing to Loki, or parsing your log with Promtail before writing to Loki? It’s the ladder: parsing log with Promtail before writing to Loki. ← → Helm join strings in a named template 8 October 2020 End User Auth and Authz with OpenShift Service Mesh and Keycloak 12 November 2020 You signed in with another tab or window. Hi Grafana Community, I am configuring Loki and I got stuck in the Promtail yaml configuration file. gerrit / gerrit-monitoring / refs/heads/master / . limits_config: reject_old_samples: false Below is the screenshot of log count chart taken just after loki and promtail initialization: Following is taken two hours labels: # not all labels level: serverVersion: - template: source: timestamp template: '{{ Replace . edit: I think that might be what is happening. From early on, we have set a label dynamically using Promtail pipelines for level. So the whole log that gets sent to promtail would look like the level=warn ts=2020-04-05T16:39:22. log | promtail -stdin -dry-run -config. From the Query dropdown, select “Loki”. The template stage is primarily useful for manipulating data from other stages before setting them as Pipeline Docs contains detailed documentation of the pipeline stages. 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. The positions file helps Promtail continue reading from where it left off in the case of the Promtail instance restarting. Scheduler. 113+0200 WARN hostname1 System. 6. Thus the format string to parse the apache access log datetime has to look like this: 02/Jan/2006:15:04:05 -0700 (notice the 15 instead of 03). The name parameter must be unique, and behaviour is unpredictable if it is not. Promtail is configured in a YAML file (usually referred to as config. The drop stage is a filtering stage that lets you drop logs based on several options. “roles/pubsub. Timestamp from json key timestamp is parsed as RFC3339 or RFC3339Nano and then send to Loki. Screenshots, Promtail config, or terminal output pipeline config: {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/sources/clients/promtail/stages":{"items":[{"name":"_index. So be sure to check if promtail (or loki) accepts timestamps with timezone, and if not, Loki Promtail pipeline template cant find variables. I use Promtail to tail a log that contains JSON-formatted lines. The current log line, represented as text. Promtail is gathering and sending logs with timestamps that look like there roughly 3h in the future compared to the clock time on the machine running promtail (and likely where you're running Loki as well). editor” This is necessary for the Grafana template that we are going to use to visualize the data. / promtail / promtailLocalConfig. Hi, i am fairly new to Promtail, loki and Grafana. 245 +01:00. # Determines how to parse the time string. 18. 4. Promtail can continue reading from the same location it left in case the Promtail instance is restarted. xml" eventlog_name: "Application" xpath_query: '*' labels : job The timestamp stage looks for a field in the extracted map. Refer to the Cloudfare configuration section for details. Obviously, this means that we lose I'm having some challenges with coercing my log lines in a certain format. Dec 9. To Reproduce create ~/promtail. The logfmt parsing stage reads logfmt log lines and extracts the data into labels. Printing Promtail Config At Runtime. The 'pack' Promtail pipeline stage. 8443515; extra: {"user": "marco"}; The second stage will parse the value of extra from the extracted data as JSON and append the following key-value pairs to the set of extracted data:. CRI specifies log lines as space-delimited values with the following components: time: The timestamp string of the log; expression needs to be a Go RE2 regex string. , things to read from, like files) and all labels are set When I try it with the following config, it doesn’t work: scrape_configs: pipeline_stages: - timestamp: source: time format: 2006-01-02T15:04:05. Default: "" KeepStream: Description: Determines whether to keep the CloudWatch Log Stream value as a Loki label when writing logs from lambda-promtail. server: http_listen_port: 9080 grpc_listen_port: 0 positions: # Temporary file to store the last read position for each In the modern tech landscape, monitoring web server performance is crucial for maintaining uptime, identifying bottlenecks, and ensuring optimal user experience. Top. 0. 1 ignores/doesn't parse a custom format value in the timestamp stage. This can be done via _stream_fields query arg. Fluent Bit is a fast, lightweight logs and metrics agent. Streamlining DevOps workflows with Go service templates can be an intimidating task, especially when dealing with @anubhabmondalDirac there's some configuration issue somewhere. Promtail has been configured to use basic The positions file helps Promtail continue reading from where it left off in the case of the Promtail instance restarting. If left unset, it defaults to the time when the log was scraped. The date of the log is available in the filename. yaml; docker-compose. The example log line Promtail time stamp uses Go’s time parse function. I have log files with an almost RFC3339Nano formatted timestamp. Promtail discovers locations of log files and extract labels from them through the scrape_configs section in the config YAML. The timestamp stage is an action stage that can change the timestamp of a log line before it is sent to Loki. Every Grafana Loki release includes binaries for Promtail which can be found on the Releases page as part of the release assets. 0 Hello all, This small tutorial explains some of the basics of setting up a log and system monitoring environment. template: '{{ ToUpper . Using Promtail’s push api along with the use_incoming_timestamp: false config, we let Promtail determine the timestamp based on when it ingests the logs, not the timestamp assigned by cloudwatch. In this example, all blocks start with a timestamp in brackets. {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/sources/clients/promtail/stages":{"items":[{"name":"_index. Users will be able to define multiple http scrape configs, but the base URL value must be different for each instance. thread_name }}] | {{ . The pack stage is a transform stage which lets you embed extracted values and labels into the log line by packing the log line and labels inside a JSON object. I do the following, where . atjbramley December 24, 2022, 1:30pm template. However, it seems that this is not so generic, as simply sending RFC 5424 logs to promtail. relabel_configs allows for fine-grained control of what to ingest, what to drop, and the final metadata to attach to the log line. What you want to do is: First get your logs into Loki. # nginx. md","path":"docs/sources/clients/promtail/stages The issue was with incorrect timestamp on the promtail pipeline stage. You can follow the function call here time package - time - Go Packages and write a little Go function and do some spot test yourself. I get that I can use string functions in templates, e. The metrics stage is an action stage that allows for defining and updating metrics based on data from the extracted map. VictoriaLogs uses log streams defined at the client side, e. 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 It assumes you have Grafana, Promtail and Loki already up and running, with Loki already receiving your logs from Promtail. If timestamp key is missing, time of log scraped is used (as mentioned in docs) Environment: Infrastructure: Docker I'd like to process incoming windows events with a promtail pipeline stage to change the key inside the json message from scrape_configs: - job_name: windows windows_events: use_incoming_timestamp: true bookmark_path: ". If you also need to cd && mkdir promtail && cd promtail. trace_id }}] Span[{{ . Scaling and Hey all, sooo I figured it out in the mean time. This would result in duplicate log lines being sent to Loki; to avoid this issue, if your tailed file has a timestamp embedded 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 {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/clients/promtail/stages":{"items":[{"name":"README. I have a single log file that is continuously being appended to with the following fields enclosed inside the brackets: I plan to use Promtail to parse this single file in real-time as new records are being appended to it. Once Promtail has a set of targets (i. One needs both a syslog-ng configuration and a matching promtail configuration. However, when parsing it through Promtail, it appears to be parsed but not being used as the displayed timestamp. Install using APT or RPM package manager. You signed out in another tab or window. Tutorials for sending logs from cloud services with Promtail. 989Z In promtail conf we have stage: - timestamp: source: timestamp format: RFC3339 But logs in grafana explore are still in seconds, 2023-09-05 21:52:19 There are no I use the PLG stack (promtail, loki, grafana) I've added new field named "timestamp" filled by extracted date from log message, but i can't change the integration date. 1 Loki 2. Examples to help you run Grafana Loki. This seemed intuitive for us as we often wanted to only show logs for level="error"; however, we are re-evaluating this now as writing a query. Promtail: A log shipping agent that sends logs from Docker containers to Loki. Hi @emilechaiban. When defined, creates an additional label in # the pipeline_duration_seconds histogram, where the value is # concatenated with job_name using an underscore. The timestamp format you are using in your config looks bit weird, From the docs it should be one of the following. 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”. CRI specifies log lines as space-delimited values with the following components: time: The timestamp string of the log; stream: Either stdout or stderr; flags: CRI flags including F or P; log: The contents of the log line; No whitespace is permitted between the components. Try out and share prebuilt visualizations. Please refer to the [template stage]({{< relref ". I've been struggling to get correct format for handling timestamp in promtail config. Closed ufth opened this issue May 6, 2021 but looking at your examples and the format you tried: "time_iso8601": " 2021-04-29T09:01:49+03:00 " "time Collect logs with Promtail The Grafana Cloud stack includes a logging service powered by Grafana Loki, a Prometheus-inspired log aggregation system. If the value extracted is a complex type, timestamp: 2012-11 template: Use Go templates to modify extracted data. e. output: Set the log line text. Now, when I query the logs from Grafana with current IST time, the logs that Loki returns is based on the timestamp that is assigned by Promtail and hence I do not get the logs of current IST time, The extracted data can hold non-string values, and this stage does not do any type conversions; downstream stages will need to perform correct type conversion of these values as necessary. I have the promtail config set up this way: server: http_listen_port: 9080 grpc_listen_port: 0 log_level: debug positions: filename: /tmp /positions Both of them show up with no errors in promtail. example logs are: 09:59:26 Project configuration field `modules` is deprecated in 0. The 'metrics' Promtail pipeline stage. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Parse function. Note that created metrics are not pushed to Loki and are instead exposed via Promtail’s /metrics endpoint. OR Provide a third option to keep the same timestamp as the last known timestamp. I'm running one promtail instance on several log files, of which some are logfmt and others are free-form. Environment: Promtail 1. yaml; 2. 2 promtail-config. promtail should parse the original RFC3339MICRO timestamp from the syslog message and use that for the original timestamp in LOKI. XX. 29:1019, The first stage would create the following key-value pairs in the set of extracted data: output: log message\n; stream: stderr; timestamp: 2019-04-30T02:12:41. A command is a simple value (argument) or a function or method call, possibly with multiple arguments. Shorter lines and cleaner formatting help focus attention on important information. level }} | Trace[{{ . java:run(1506)) - PacketResponder: BP-1986026358-172. The 'logfmt' Promtail pipeline stage. Promtail will append a timestamp to the log line if it does not recognise it in the log line content. {{ len . Please use the `scan` field instead. When I tried to set the timestamp from the log line instead, it didn’t work for a JSON object key starting with a @ like @timestamp. This file will tell Promtail where to look for the logs and where to send them. Promtail. Fluent Bit is licensed under the terms of the Apache License v2. promtail is configured using a scrape_configs stanza. However, Only the field timestamp can be found in the extracted mapping. Click the Plus Icon on the left panel and select “Dashboard”. Configure Promtail. Format of my log: 2022-08-02 16:46:02. Can use # pre-defined formats by name: [ANSIC UnixDate RubyDate RFC822 # RFC822Z RFC850 RFC1123 RFC1123Z RFC3339 RFC3339Nano Unix # UnixMs UnixUs UnixNs]. I used to use the default timestamp (time Promtail reads the line). By using two regex and a template step, I was able to construct the correct string with the template section, but the timestamp stage Custom formats are passed directly to the layout parameter in Go’s time. /template" >}}) for how to do this. Promtail features an embedded web server exposing a web console at / and the following API endpoints: GET b0b is correct in that you don’t want to use Loki like ES. Rather, it is using the timestamp where Promtail pushed said log to Loki. I removed ts for timestamp since I'm utilizing the log panel time option. I dont see any errors in rsyslog, promtail, or loki. Because of how YAML treats backslashes in double-quoted strings, note that all backslashes in a regex expression must be escaped when using double quotes. All. Any thing I am doing wrong here? In the meantime, I have setup another Promtail instance on my other server, which is running nginx reverse proxy and jellyfin media player. 13 and will be removed in 0. 10+, or use a logging driver that supports writing the logs locally as well as to the remote endpoint, otherwise docker logs and nomad alloc logs are unusable Yes, I still find a loki-http() destination a good idea. Additionally, I streamlined log levels using colored circle emojis. The template stage is a transform stage that lets use manipulate the values in the extracted map using Go’s template syntax. Nginx, a popular and high Configure Promtail. 14. md","path":"docs/clients/promtail/stages/README. md Configuration examples can be found in the Configuration Examples document. Get your metrics into Prometheus quickly. Path: Copied! Products Open Source Solutions Learn Docs Company; This webinar focuses on Grafana Loki configuration including agents Promtail and Then I can run the following command to pipe that data through Promtail without updating any state files or submitting data to Loki but instead logging it to the terminal: cat test. What are my options for Unlike most stages, the cri stage provides no configuration options and only supports the specific CRI log format. Different types simply enable different ways to specify the template content. I use this in case of issues with my openhab setup, to analyse what went wrong, when to find a solution. wiiu kcxxu gcvtvxh qcp bpyu rzz htlui bcmbmch dgeq kpgz