feat: add trusted proxy identity and overload stats

config/env.go

@@ -20,6 +20,12 @@ func LoadFromEnv(prefix string) (Config, error) {
 	cfg := Default()
 	cfg.Address = envString(prefix+"HTTP_ADDR", cfg.Address)
 	cfg.RequestIDHeader = envString(prefix+"REQUEST_ID_HEADER", cfg.RequestIDHeader)
+	if value := strings.TrimSpace(os.Getenv(prefix + "TRUSTED_PROXIES")); value != "" {
+		cfg.TrustedProxies = strings.Split(value, ",")
+		for i := range cfg.TrustedProxies {
+			cfg.TrustedProxies[i] = strings.TrimSpace(cfg.TrustedProxies[i])
+		}
+	}
 	cfg.Log.Level = envString(prefix+"LOG_LEVEL", cfg.Log.Level)
 	cfg.Log.Format = envString(prefix+"LOG_FORMAT", cfg.Log.Format)
 	cfg.Log.Output = envString(prefix+"LOG_OUTPUT", cfg.Log.Output)