Stages

ClientsPromtailStages

This section is a collection of all stages Promtail supports in a Pipeline.

Parsing stages:

  • docker: Extract data by parsing the log line using the standard Docker format.
  • cri: Extract data by parsing the log line using the standard CRI format.
  • regex: Extract data using a regular expression.
  • json: Extract data by parsing the log line as JSON.
  • replace: Replace data using a regular expression.

Transform stages:

  • template: Use Go templates to modify extracted data.

Action stages:

  • timestamp: Set the timestamp value for the log entry.
  • output: Set the log line text.
  • labeldrop: Drop label set for the log entry.
  • labels: Update the label set for the log entry.
  • metrics: Calculate metrics based on extracted data.
  • tenant: Set the tenant ID value to use for the log entry.

Filtering stages:

  • match: Conditionally run stages based on the label set.
  • drop: Conditionally drop log lines based on several options.