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Traefik V2 latency

Latency plugin for Traefik V2 services.

Uses Traefik v2 service metrics to get the latency on the serving services.

Options

  • bucket: (Required) The max latency allowed histogram bucket.
  • service_name_regex: (required) Regex to match the traefik service.
  • filter: (Optional) A prometheus filter string using concatenated labels
  • exclude_errors: (Optional) Boolean that will exclude errored requests from valid events when measuring latency requests.

Metric requirements

  • traefik_service_request_duration_seconds_bucket: From traefik.
  • traefik_service_request_duration_seconds_count: From traefik.

Usage examples

Without filter

sli:
  plugin:
    id: "sloth-common/traefik/v2/latency"
    options:
      service_name_regex: "^default-slok-sloth$"
      bucket: "0.3"

With filters

sli:
  plugin:
    id: "sloth-common/traefik/v2/latency"
    options:
      service_name_regex: "^default-slok-sloth$"
      bucket: "0.3"
      filter: method="GET"

Excluding errors (5xx)

sli:
  plugin:
    id: "sloth-common/traefik/v2/latency"
    options:
      service_name_regex: "^default-slok-sloth$"
      bucket: "0.3"
      filter: method="GET"
      exclude_errors: "true"
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