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Prime some critical stats before the first scrape

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This commit is contained in:
Nate Brown
2026-05-07 22:59:05 -05:00
parent 1ada3d4dd9
commit 0894a44599
2 changed files with 96 additions and 15 deletions
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38
interface.go
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@@ -491,26 +491,34 @@ func (f *Interface) emitStats(ctx context.Context, i time.Duration) {
certInitiatingVersion := metrics.GetOrRegisterGauge("certificate.initiating_version", nil)
certMaxVersion := metrics.GetOrRegisterGauge("certificate.max_version", nil)
emit := func() {
f.firewall.EmitStats()
f.handshakeManager.EmitStats()
udpStats()
certState := f.pki.getCertState()
defaultCrt := certState.GetDefaultCertificate()
certExpirationGauge.Update(int64(defaultCrt.NotAfter().Sub(time.Now()) / time.Second))
certInitiatingVersion.Update(int64(defaultCrt.Version()))
// Report the max certificate version we are capable of using
if certState.v2Cert != nil {
certMaxVersion.Update(int64(certState.v2Cert.Version()))
} else {
certMaxVersion.Update(int64(certState.v1Cert.Version()))
}
}
// Prime gauges so a Prometheus scrape that lands before the first tick
// sees real values instead of the zero defaults (issue #907).
emit()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
f.firewall.EmitStats()
f.handshakeManager.EmitStats()
udpStats()
certState := f.pki.getCertState()
defaultCrt := certState.GetDefaultCertificate()
certExpirationGauge.Update(int64(defaultCrt.NotAfter().Sub(time.Now()) / time.Second))
certInitiatingVersion.Update(int64(defaultCrt.Version()))
// Report the max certificate version we are capable of using
if certState.v2Cert != nil {
certMaxVersion.Update(int64(certState.v2Cert.Version()))
} else {
certMaxVersion.Update(int64(certState.v1Cert.Version()))
}
emit()
}
}
}