feat: control log verbosity with LOG_LEVEL

main.go

@@ -207,6 +207,20 @@ func isPrivateOrLoopback(ip net.IP) bool {
 }
 
 func main() {
+	// Minimum severity for wuzapi's own logs, from LOG_LEVEL (trace, debug,
+	// info, warn, error, fatal, panic). Without it zerolog stays at its
+	// TraceLevel default, so every Debug and Info line is emitted with no way
+	// to turn it down — -wadebug governs the whatsmeow logger, not this one.
+	// An absent or unrecognized value keeps the previous behaviour, so a typo
+	// can never silence the service.
+	//
+	// Set first thing in main: the level is consulted per record rather than
+	// baked into the logger, so setting it here also covers the config lines
+	// logged before the logger below is installed.
+	if lvl, err := zerolog.ParseLevel(strings.ToLower(strings.TrimSpace(os.Getenv("LOG_LEVEL")))); err == nil && lvl != zerolog.NoLevel {
+		zerolog.SetGlobalLevel(lvl)
+	}
+
 	for _, cidr := range []string{
 		"127.0.0.0/8",    // IPv4 loopback
 		"10.0.0.0/8",     // RFC1918