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 ..
40 lines
1.3 KiB
Go
40 lines
1.3 KiB
Go
package template
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import (
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"github.com/coredns/coredns/plugin"
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"github.com/coredns/coredns/plugin/metrics"
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"github.com/mholt/caddy"
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"github.com/prometheus/client_golang/prometheus"
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)
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var (
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templateMatchesCount = prometheus.NewCounterVec(prometheus.CounterOpts{
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Namespace: plugin.Namespace,
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Subsystem: "template",
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Name: "matches_total",
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Help: "Counter of template regex matches.",
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}, []string{"server", "zone", "class", "type"})
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templateFailureCount = prometheus.NewCounterVec(prometheus.CounterOpts{
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Namespace: plugin.Namespace,
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Subsystem: "template",
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Name: "template_failures_total",
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Help: "Counter of go template failures.",
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}, []string{"server", "zone", "class", "type", "section", "template"})
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templateRRFailureCount = prometheus.NewCounterVec(prometheus.CounterOpts{
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Namespace: plugin.Namespace,
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Subsystem: "template",
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Name: "rr_failures_total",
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Help: "Counter of mis-templated RRs.",
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}, []string{"server", "zone", "class", "type", "section", "template"})
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)
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// OnStartupMetrics sets up the metrics on startup.
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func setupMetrics(c *caddy.Controller) error {
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c.OnStartup(func() error {
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metrics.MustRegister(c, templateMatchesCount, templateFailureCount, templateRRFailureCount)
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return nil
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})
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return nil
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}
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