Promtail json example. The example log line generated by Promtail example extracting data from json log. The claims in a JWT are encoded as a Promtail is configured in a YAML file (usually referred to as config. Parsing stages: docker: Extract data by parsing the log line using the standard Docker . Instead, you'll want to parse the JSON at query time using LogQL. yaml Promtail example configuration for Loki. Because of these design differences, having too many indexes can end up hurting Loki's performance. GitHub Gist: instantly share code, notes, and snippets. This library supports both JSON and Protobuf APIs. Should I get rid it before sending it to the pipe and parse? So can somebody We would like to show you a description here but the site won’t allow us. If a discovered target has decompression configured, Promtail The 'json' Promtail pipeline stage. I am having an issue with getting promtail to read and log file and extract the infomation i need to send to loki The log line in the file looks like this 2022-11-16T16:55:35. 3 I've created some monitoring with grafana, loki and promtail. You can find migration resources here. 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. e. Parsing stages: docker: Extract data by parsing the log line using the standard Docker 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. A comprehensive guide to parsing JSON logs with Promtail for Grafana Loki, covering JSON extraction, nested fields, timestamp handling, and best practices for structured log processing. The json stage is a parsing stage that reads the log line as JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. Promtail will reach an End-of-Life (EOL) on March 2, 2026. You should run your logs through the cri pipeline stage (docs) before attempting to parse the JSON. Example for Promtail json pipeline deployed with loki-stack #9480 Have a question about this project? Sign up for a free GitHub account to open Promtail Configuration Introduction Promtail is a log collection agent designed to work seamlessly with Grafana Loki. 2. 1，$ {VAR} 环境变量的使用仍有问题，具体表现为必须 Support for compressed files Promtail now has native support for ingesting compressed files. The container i'm getting the logs from outputs them in JSON format i. Usage example: Hey @sdeoras If you look closer, you’ll see your log message is prefixed with stdout F. yaml) which contains information on the Promtail server, where positions are stored, and Embed Download ZIP [promtail使用样例] promtail json日志样例配置 #config #example Raw promtail-config. Is it possile to parse first part of the log as json, and for stack-trace make new label This section is a collection of all stages Promtail supports in a Pipeline. 738757+00:00 In this case the JSON with log fields is stored as a string in the _msg field , so later it could be parsed at query time with the unpack_json pipe . This stage uses the Go JSON unmarshaler, which means non-string types like numbers or booleans will be unmarshaled The timestamp and metadata in front of the JSON object is preventing it from being parsed properly. JSON parsing at query can be slow and can consume a lot of I have multiline log that consists correct json part (one or more lines), and after it - stack trace. md 需要注意截至到2. Promtail is an agent for Loki logging system. This section is a collection of all stages Promtail supports in a Pipeline. It discovers targets, attaches labels to log Promtail client library. uqhqi afsmesm jtioun wphprl rwbhvak slosb vyourl wcy aqg wzdqzmos