/
metrics.go
35 lines (31 loc) · 1.12 KB
/
metrics.go
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package plugin
import (
"time"
"github.com/coredns/coredns/plugin"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)
var blockedCount = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: plugin.Namespace,
Subsystem: "blocklist",
Name: "request_blocked_total",
Help: "Counter of requests blocked.",
}, []string{"server"})
var lookupDurationHist = promauto.NewHistogramVec(prometheus.HistogramOpts{
Namespace: plugin.Namespace,
Subsystem: "blocklist",
Name: "lookup_duration",
Help: "Distribution of the lookup duration",
// lets use nanoseconds, the native duration values
Buckets: []float64{
float64(500 * time.Microsecond),
float64(1_000 * time.Microsecond), // 1ms
float64(5_000 * time.Microsecond), // 5ms
float64(10_000 * time.Microsecond), // 10ms
float64(50_000 * time.Microsecond), // 50ms
float64(100_000 * time.Microsecond), // 100ms
float64(250_000 * time.Microsecond), // 1/4s
float64(500_000 * time.Microsecond), // 1/2s
float64(1_000_000 * time.Microsecond), // 1s
},
}, []string{"server"})