coredns/plugin/dnssec/metrics.go

package dnssec

import (
	"github.com/coredns/coredns/plugin"

	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/promauto"
)

var (
	// cacheSize is the number of elements in the dnssec cache.
	cacheSize = promauto.NewGaugeVec(prometheus.GaugeOpts{
		Namespace: plugin.Namespace,
		Subsystem: "dnssec",
		Name:      "cache_entries",
		Help:      "The number of elements in the dnssec cache.",
	}, []string{"server", "type"})
	// cacheHits is the count of cache hits.
	cacheHits = promauto.NewCounterVec(prometheus.CounterOpts{
		Namespace: plugin.Namespace,
		Subsystem: "dnssec",
		Name:      "cache_hits_total",
		Help:      "The count of cache hits.",
	}, []string{"server"})
	// cacheMisses is the count of cache misses.
	cacheMisses = promauto.NewCounterVec(prometheus.CounterOpts{
		Namespace: plugin.Namespace,
		Subsystem: "dnssec",
		Name:      "cache_misses_total",
		Help:      "The count of cache misses.",
	}, []string{"server"})
)