mixins/coredns/tests.yaml

rule_files:
  - prometheus_alerts.yaml

evaluation_interval: 1m

tests:
- interval: 1m
  input_series:
  - series: 'coredns_dns_responses_total{instance="1.2.3.4:9153",job="kube-dns",kubernetes_name="coredns-kube-metrics",kubernetes_namespace="kube-system",pod="coredns-65b6759cb4-qgdxp",rcode="NOERROR",server="dns://:53",zone="."}'
    values: '0 100 200 300 400 500 600 700 800 900 1000 1100 1200'
  - series: 'coredns_dns_responses_total{instance="1.2.3.4:9153",job="kube-dns",kubernetes_name="coredns-kube-metrics",kubernetes_namespace="kube-system",pod="coredns-65b6759cb4-qgdxp",rcode="SERVFAIL",server="dns://:53",zone="."}'
    values: '0 100 200 300 400 500 600 700 800 900 1000 1100 1200'
  alert_rule_test:
  - eval_time: 11m
    alertname: CoreDNSErrorsHigh
    exp_alerts:
    - exp_labels:
        severity: warning
      exp_annotations:
        message: "CoreDNS is returning SERVFAIL for 50% of requests."
        runbook_url: "https://github.com/povilasv/coredns-mixin/tree/master/runbook.md#alert-name-corednserrorshigh"
    - exp_labels:
        severity: critical
      exp_annotations:
        message: "CoreDNS is returning SERVFAIL for 50% of requests."
        runbook_url: "https://github.com/povilasv/coredns-mixin/tree/master/runbook.md#alert-name-corednserrorshigh"

- interval: 1m
  input_series:
  - series: 'coredns_dns_request_duration_seconds_bucket{instance="1.2.3.4:9153",job="kube-dns",kubernetes_name="coredns-kube-metrics",kubernetes_namespace="kube-system",pod="coredns-65b6759cb4-qgdxp",le="0.001",server="dns://:53",zone="."}'
    values: '0 1 2 3 4 5 6 7 8 9 10 11 12'
  - series: 'coredns_dns_request_duration_seconds_bucket{instance="1.2.3.4:9153",job="kube-dns",kubernetes_name="coredns-kube-metrics",kubernetes_namespace="kube-system",pod="coredns-65b6759cb4-qgdxp",le="8.192",server="dns://:53",zone="."}'
    values: '0 100 200 300 400 500 600 700 800 900 1000 1100 1200'
  - series: 'coredns_dns_request_duration_seconds_bucket{instance="1.2.3.4:9153",job="kube-dns",kubernetes_name="coredns-kube-metrics",kubernetes_namespace="kube-system",pod="coredns-65b6759cb4-qgdxp",le="+Inf",server="dns://:53",zone="."}'
    values: '0 100 200 300 400 500 600 700 800 900 1000 1100 1200'
  alert_rule_test:
  - eval_time: 11m
    alertname: CoreDNSLatencyHigh
    exp_alerts:
    - exp_labels:
        severity: critical
        server: "dns://:53"
        zone: "."
      exp_annotations:
        message: "CoreDNS has 99th percentile latency of 8.109262626262627 seconds for server dns://:53 zone . ."
        runbook_url: "https://github.com/povilasv/coredns-mixin/tree/master/runbook.md#alert-name-corednslatencyhigh"

- interval: 1m
  input_series:
  - series: 'coredns_forward_healthcheck_failures_total{instance="1.2.3.4:9153",job="kube-dns",kubernetes_name="coredns-kube-metrics",kubernetes_namespace="kube-system",pod="coredns-65b6759cb4-qgdxp",server="dns://:53",zone=".",to="5.6.7.8"}'
    values: '0 1 2 3 4 5 6 7 8 9 10 11 12'
  alert_rule_test:
    - eval_time: 11m
      alertname: CoreDNSForwardHealthcheckFailureCount
      exp_alerts:
        - exp_labels:
            severity: warning
            to: "5.6.7.8"
          exp_annotations:
            message: "CoreDNS health checks have failed to upstream server 5.6.7.8."
            runbook_url: "https://github.com/povilasv/coredns-mixin/tree/master/runbook.md#alert-name-corednsforwardhealthcheckfailurecount"

- interval: 1m
  input_series:
  - series: 'coredns_forward_healthcheck_broken_total{instance="1.2.3.4:9153",job="kube-dns",kubernetes_name="coredns-kube-metrics",kubernetes_namespace="kube-system",pod="coredns-65b6759cb4-qgdxp",server="dns://:53",zone=".",to="5.6.7.8"}'
    values: '0 1 2 3 4 5 6 7 8 9 10 11 12'
  alert_rule_test:
    - eval_time: 11m
      alertname: CoreDNSForwardHealthcheckBrokenCount
      exp_alerts:
        - exp_labels:
            severity: warning
          exp_annotations:
            message: "CoreDNS health checks have failed for all upstream servers."
            runbook_url: "https://github.com/povilasv/coredns-mixin/tree/master/runbook.md#alert-name-corednsforwardhealthcheckbrokencount"