func loadMetricsConfig()

in internal/config/config.go [232:263]

• 24 lines of code
• 7 McCabe index (conditional complexity)

func loadMetricsConfig() (metrics Metrics, err error) {
	// don't validate anything if metrics are disabled
	if *metricsAddress == "" {
		return metrics, nil
	}
	metrics.Address = *metricsAddress

	// no error when using HTTP
	if *metricsCertificate == "" && *metricsKey == "" {
		return metrics, nil
	}

	if *metricsCertificate == "" {
		return metrics, errMetricsNoCertificate
	}

	if *metricsKey == "" {
		return metrics, errMetricsNoKey
	}

	cert, err := tls.LoadX509KeyPair(*metricsCertificate, *metricsKey)
	if err != nil {
		return metrics, err
	}

	metrics.TLSConfig = &tls.Config{
		Certificates: []tls.Certificate{cert},
		MinVersion:   tls.VersionTLS12,
	}

	return metrics, nil
}