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plugin/metrics: add MustRegister function (#1648)

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This registers the Collectors iff the metrics plugin has been loaded.
Safes a bunch of code in each and every plugin's setup code.
This commit is contained in:
Miek Gieben
2018-04-01 13:58:13 +01:00
committed by GitHub
parent 4df416ca1d
commit 2338120f5b
9 changed files with 34 additions and 72 deletions
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11
plugin/dnssec/setup.go
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@@ -33,16 +33,7 @@ func setup(c *caddy.Controller) error {
c.OnStartup(func() error {
once.Do(func() {
m := dnsserver.GetConfig(c).Handler("prometheus")
if m == nil {
return
}
if x, ok := m.(*metrics.Metrics); ok {
x.MustRegister(cacheSize)
x.MustRegister(cacheCapacity)
x.MustRegister(cacheHits)
x.MustRegister(cacheMisses)
}
metrics.MustRegister(c, cacheSize, cacheCapacity, cacheHits, cacheMisses)
})
return nil
})