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afb182cb14
and add an alerting rule if the failure rate becomes >10% (e.g. expired certificate). the prometheus metrics includes a reason, including potential tls alerts, if remote smtp clients would send those (openssl s_client -starttls does). inspired by issue #237, where incoming connections were aborted by remote. such errors would show up as "eof" in the metrics.
14 lines
225 B
Go
14 lines
225 B
Go
//go:build !go1.21
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// For go1.20 and earlier.
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package tlsrpt
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import (
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"fmt"
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)
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// FormatAlert formats a TLS alert in the form "alert-<num>".
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func FormatAlert(alert uint8) string {
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return fmt.Sprintf("alert-%d", alert)
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}
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