latency

Istio V1 latency

Latency plugin for Istio V1 services.

Uses Istio v1 request metrics to get the latency on a service.

Options

• namespace: (required) Kubernetes namespace of the service.
• service: (required) Service name.
• bucket: (Required) The max latency allowed histogram bucket.
• exclude_errors: (Optional) Boolean that will exclude errored requests from valid events
• filter: (Optional) A prometheus filter string using concatenated labels

Metric requirements

• istio_request_duration_milliseconds_bucket: From istio.
• istio_request_duration_milliseconds_count: From istio.

Usage examples

Without filter

sli:
  plugin:
    id: "sloth-common/istio/v1/latency"
    options:
      namespace: "default"
      service: "test"
      bucket: "300"

With filters

sli:
  plugin:
    id: "sloth-common/istio/v1/latency"
    options:
      namespace: "default"
      service: "test"
      bucket: "300"
      filter: request_protocol="http"

Excluding errors (5xx)

sli:
  plugin:
    id: "sloth-common/istio/v1/latency"
    options:
      namespace: "default"
      service: "test"
      bucket: "300"
      filter: request_protocol="http"
      exclude_errors: true