promtail ☆
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Description:
Log agent for Loki
Type: Formula  |  Latest Version: 3.6.3@0  |  Tracked Since: Dec 11, 2025
Links: Homepage  |  @grafana  |  formulae.brew.sh
Category: Devops
Tags: logging observability monitoring loki devops
Install: brew install promtail
About:
Promtail is an agent which ships the contents of local logs to a private Grafana Loki instance. It is most commonly used together with Grafana Loki, but can be used with other systems. It automatically discovers targets, and tags logs with metadata.
Key Features:
  • Automatic service discovery and log ingestion
  • Native integration with Grafana Loki
  • Support for multiple log formats and pipelines
  • Efficient log processing and forwarding
Use Cases:
  • Centralizing application logs in a Kubernetes cluster
  • Aggregating system logs from multiple servers
  • Shipping logs to Loki for analysis in Grafana
Alternatives:
  • fluent-bit – Lightweight log processor and forwarder with wider output support
  • filebeat – Part of the Elastic Stack, designed for forwarding to Elasticsearch
Version History
Detected Version Rev Change Commit
Dec 11, 2025 5:29pm 0 VERSION_BUMP ad16efe6
Nov 25, 2025 8:09pm 0 VERSION_BUMP e072f20c
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Dec 10, 2022 7:07am 0 VERSION_BUMP aea8beef
Dec 10, 2022 7:07am 0 VERSION_BUMP 0f736863
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