Docker Container Logging using Promtail. In this guide, we'll explore how to configure Promtail to efficiently collect logs from various sources and send In this blog, I’ll walk you through setting up centralized logging for Docker containers using Loki, Promtail, and Grafana, with logs This article explains how to modify Promtail configuration to extract log properties and store them as labels for better indexing and querying in Loki. 3. When Promtail proccess the logs I don’t get any error, only this kind of message: level=debug In this guide, we’ll walk you through the process of setting up a centralized logging system using Loki, Grafana, and Promtail within a Promtail is an agent which reads log files and sends streams of log data to the centralised Loki instances along with a set of labels. Promtail is an open-source log shipper and tailer that is part of the Grafana Loki project, which is designed for collecting, processing, and storing log data. Currently, Promtail can tail logs from two sources: local I am using regular expressions to process my logs. Currently, Promtail can tail logs from two sources: local Describe the bug Promtail stops collecting logs after target log files has been rotated, and no any useful logs even in debug mode. This can be used in combination with piping data to debug or troubleshoot Promtail log parsing. 2. 6 I have incorrect label level for some logs. For example if you are running Promtail in Kubernetes Monitor Promtail metrics and logs with a customized Grafana dashboard. By using Promtail to push Docker logs to Loki, you can efficiently manage and monitor your logs without the overhead of indexing log content. This setup is scalable and In summary, this Promtail configuration is designed to scrape logs from Docker containers, transform and label them appropriately, and This is a quick guide to getting started with Promtail for Loki. Promtail can be configured to print log stream entries instead of sending them to Loki. Promtail is Grafana's native solution for getting logs into Loki and, as you should expect, is nicely integrated with it. What a pitty I hadnt seen that before in the docs. My promtail config is: - job_name: kubernetes-pods pipeline_stages: - docker: {} - regex: expression: '^(?P< It primarily: Discovers targets Attaches labels to log streams Pushes them to the Loki instance. Centralized Docker Logging with Loki, Promtail, and Grafana Monitoring logs efficiently has become crucial when managing multiple When Promtail's server log level is set to info, it does not output any messages about being unable to track a specified file if it lacks Hi guys, I have Loki v. Promtail will reach an End-of-Life Let’s talk about promtail today. . In this guide, we’ll walk you through the process of setting up a centralized logging system using Loki, Grafana, and Promtail within a The website content provides a detailed guide on configuring Promtail, an open-source log shipper for Grafana Loki, to aggregate and forward logs from Docker containers to a I has set log_level: debug in promtail config and thought that would be it, but the --inspect flag really helped me tremendously. I tried the following promtail config, label names are slightly different but with this config the loki data source does not generate the Hello everyone, I am trying to setup Promtail to send Kubernetes logs to Loki. Gain insights into Promtail's behavior when needed. 0 and Grafana 10. It discovers targets, attaches labels to log streams, and forwards them to Loki. In the 90% cases - label level is correct. promtail It primarily: Discovers targets Attaches labels to log streams Pushes them to the Loki instance. drop Caution Promtail has been deprecated and is in Long-Term Support (LTS) through February 28, 2026. GitHub Gist: instantly share code, notes, and snippets.
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