f9bdd382dd
* - ensure plugins that use prometheus.MustRegister, re-register after reload - removing once.Do on the startup function was simplest way to do it. * - fix underscored names (advice of bot) * - tune existing UT for reload, and add a test verifying failing reload does not prevent correct registering for metrics * - ensure different ports for tests that can run in same time ..
36 lines
1,018 B
Go
36 lines
1,018 B
Go
package proxy
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import (
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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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// Metrics the proxy plugin exports.
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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: "proxy",
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Name: "request_count_total",
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Help: "Counter of requests made per protocol, proxy protocol, family and upstream.",
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}, []string{"server", "proto", "proxy_proto", "family", "to"})
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RequestDuration = prometheus.NewHistogramVec(prometheus.HistogramOpts{
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Namespace: plugin.Namespace,
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Subsystem: "proxy",
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Name: "request_duration_seconds",
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Buckets: plugin.TimeBuckets,
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Help: "Histogram of the time (in seconds) each request took.",
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}, []string{"server", "proto", "proxy_proto", "family", "to"})
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)
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// familyToString returns the string form of either 1, or 2. Returns
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// empty string is not a known family
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func familyToString(f int) string {
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if f == 1 {
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return "1"
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}
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if f == 2 {
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return "2"
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}
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return ""
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}
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