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CoreDNS latency

Request/response latency plugin for CoreDNS.

Options

  • bucket: (Required) The max latency allowed histogram bucket.
  • filter: (Optional) A prometheus filter string using concatenated labels (e.g: exported_service="alertmanager-api",service="alertgram")

Metric requirements

  • coredns_dns_request_duration_seconds_bucket: From coreDNS.
  • coredns_dns_request_duration_seconds_count: From coreDNS.

Usage examples

Without filter

sli:
  plugin:
    id: "sloth-common/coredns/latency"
    options:
      bucket: "0.25"

With filter

sli:
  plugin:
    id: "sloth-common/coredns/latency"
    options:
      bucket: "0.032"
      filter: job="kube-dns",server="dns://:53",service="kube-dns", zone="."
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