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https://github.com/coredns/coredns.git
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5b844b5017
* plugin/forward: add it This moves coredns/forward into CoreDNS. Fixes as a few bugs, adds a policy option and more tests to the plugin. Update the documentation, test IPv6 address and add persistent tests. * Always use random policy when spraying * include scrub fix here as well * use correct var name * Code review * go vet * Move logging to metrcs * Small readme updates * Fix readme
53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
package forward
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import (
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"sync"
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"github.com/coredns/coredns/plugin"
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"github.com/prometheus/client_golang/prometheus"
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)
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// Variables declared for monitoring.
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var (
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RequestCount = prometheus.NewCounterVec(prometheus.CounterOpts{
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Namespace: plugin.Namespace,
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Subsystem: "forward",
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Name: "request_count_total",
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Help: "Counter of requests made per upstream.",
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}, []string{"to"})
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RcodeCount = prometheus.NewCounterVec(prometheus.CounterOpts{
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Namespace: plugin.Namespace,
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Subsystem: "forward",
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Name: "response_rcode_count_total",
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Help: "Counter of requests made per upstream.",
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}, []string{"rcode", "to"})
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RequestDuration = prometheus.NewHistogramVec(prometheus.HistogramOpts{
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Namespace: plugin.Namespace,
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Subsystem: "forward",
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Name: "request_duration_seconds",
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Buckets: plugin.TimeBuckets,
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Help: "Histogram of the time each request took.",
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}, []string{"to"})
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HealthcheckFailureCount = prometheus.NewCounterVec(prometheus.CounterOpts{
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Namespace: plugin.Namespace,
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Subsystem: "forward",
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Name: "healthcheck_failure_count_total",
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Help: "Counter of the number of failed healtchecks.",
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}, []string{"to"})
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HealthcheckBrokenCount = prometheus.NewCounter(prometheus.CounterOpts{
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Namespace: plugin.Namespace,
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Subsystem: "forward",
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Name: "healthcheck_broken_count_total",
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Help: "Counter of the number of complete failures of the healtchecks.",
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})
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SocketGauge = prometheus.NewGaugeVec(prometheus.GaugeOpts{
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Namespace: plugin.Namespace,
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Subsystem: "forward",
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Name: "socket_count_total",
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Help: "Guage of open sockets per upstream.",
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}, []string{"to"})
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)
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var once sync.Once
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