func configureSDHTTPClientConfigFromTA()

in otelcollector/prometheusreceiver/targetallocator/config.go [137:197]
53 lines of code
13 McCabe index (conditional complexity)

func configureSDHTTPClientConfigFromTA(httpSD *promHTTP.SDConfig, allocConf *Config) error {
	httpSD.HTTPClientConfig.FollowRedirects = false

	httpSD.HTTPClientConfig.TLSConfig = commonconfig.TLSConfig{
		InsecureSkipVerify: allocConf.TLSSetting.InsecureSkipVerify,
		ServerName:         allocConf.TLSSetting.ServerName,
		CAFile:             allocConf.TLSSetting.CAFile,
		CertFile:           allocConf.TLSSetting.CertFile,
		KeyFile:            allocConf.TLSSetting.KeyFile,
	}

	if allocConf.TLSSetting.CAPem != "" {
		decodedCA, err := base64.StdEncoding.DecodeString(string(allocConf.TLSSetting.CAPem))
		if err != nil {
			return fmt.Errorf("failed to decode CA: %w", err)
		}
		httpSD.HTTPClientConfig.TLSConfig.CA = string(decodedCA)
	}

	if allocConf.TLSSetting.CertPem != "" {
		decodedCert, err := base64.StdEncoding.DecodeString(string(allocConf.TLSSetting.CertPem))
		if err != nil {
			return fmt.Errorf("failed to decode Cert: %w", err)
		}
		httpSD.HTTPClientConfig.TLSConfig.Cert = string(decodedCert)
	}

	if allocConf.TLSSetting.KeyPem != "" {
		decodedKey, err := base64.StdEncoding.DecodeString(string(allocConf.TLSSetting.KeyPem))
		if err != nil {
			return fmt.Errorf("failed to decode Key: %w", err)
		}
		httpSD.HTTPClientConfig.TLSConfig.Key = commonconfig.Secret(decodedKey)
	}

	if allocConf.TLSSetting.MinVersion != "" {
		minVersion, err := convertTLSVersion(allocConf.TLSSetting.MinVersion)
		if err != nil {
			return err
		}
		httpSD.HTTPClientConfig.TLSConfig.MinVersion = minVersion
	}

	if allocConf.TLSSetting.MaxVersion != "" {
		maxVersion, err := convertTLSVersion(allocConf.TLSSetting.MaxVersion)
		if err != nil {
			return err
		}
		httpSD.HTTPClientConfig.TLSConfig.MaxVersion = maxVersion
	}

	if allocConf.ProxyURL != "" {
		proxyURL, err := url.Parse(allocConf.ProxyURL)
		if err != nil {
			return err
		}
		httpSD.HTTPClientConfig.ProxyURL = commonconfig.URL{URL: proxyURL}
	}

	return nil
}