---
title: "Promtail pipeline stages | Grafana Loki documentation"
description: "Overview of the Promtail pipeline stages."
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# Promtail pipeline stages

This section is a collection of all stages Promtail supports in a [Pipeline](../pipelines/).

Parsing stages:

- [docker](docker/): Extract data by parsing the log line using the standard Docker format.
- [cri](cri/): Extract data by parsing the log line using the standard CRI format.
- [regex](regex/): Extract data using a regular expression.
- [json](json/): Extract data by parsing the log line as JSON.
- [logfmt](logfmt/): Extract data by parsing the log line as logfmt.
- [replace](replace/): Replace data using a regular expression.
- [multiline](multiline/): Merge multiple lines into a multiline block.
- [geoip](geoip/): Extract geoip data from extracted labels.

Transform stages:

- [template](template/): Use Go templates to modify extracted data.
- [pack](pack/): Packs a log line in a JSON object allowing extracted values and labels to be placed inside the log line.
- [decolorize](decolorize/): Strips ANSI color sequences from the log line.

Action stages:

- [timestamp](timestamp/): Set the timestamp value for the log entry.
- [output](output/): Set the log line text.
- [labeldrop](labeldrop/): Drop label set for the log entry.
- [labelallow](labelallow/): Allow label set for the log entry.
- [labels](labels/): Update the label set for the log entry.
- [limit](limit/): Limit the rate lines will be sent to Loki.
- [sampling](sampling/): Sampling the lines will be sent to Loki.
- [static\_labels](static_labels/): Add static-labels to the log entry.
- [metrics](metrics/): Calculate metrics based on extracted data.
- [tenant](tenant/): Set the tenant ID value to use for the log entry.
- [structured\_metadata](structured_metadata/): Add structured metadata to the log entry.

Filtering stages:

- [match](match/): Conditionally run stages based on the label set.
- [drop](drop/): Conditionally drop log lines based on several options.