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Added firewall.rules.hash metric (#1010)

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* Added firewall.rules.hash metric

Added a FNV-1 hash of the firewall rules as a Prometheus value.

* Switch FNV has to int64, include both hashes in log messages

* Use a uint32 for the FNV hash

Let go-metrics cast the uint32 to a int64, so it won't be lossy
when it eventually emits a float64 Prometheus metric.
This commit is contained in:
Ben Ritcey 2023-11-28 11:56:47 -05:00 • committed by GitHub
parent 1083279a45
commit 01cddb8013
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3 changed files with 19 additions and 5 deletions
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main.go
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@ -65,7 +65,7 @@ func Main(c *config.C, configTest bool, buildVersion string, logger *logrus.Logg
if err != nil {
return nil, util.ContextualizeIfNeeded("Error while loading firewall rules", err)
}
l.WithField("firewallHash", fw.GetRuleHash()).Info("Firewall started")
l.WithField("firewallHashes", fw.GetRuleHashes()).Info("Firewall started")
// TODO: make sure mask is 4 bytes
tunCidr := certificate.Details.Ips[0]