func()

in internal/system/networking.go [69:94]

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

func (a *networkingAspect) ensureEKSNetworkConfiguration() error {
	networkCfgDropInDir := fmt.Sprintf("%s/%s.d", administrationNetworkDir, ec2NetworkConfigurationName)
	eksPrimaryENIOnlyConfPathName := fmt.Sprintf("%s/%s", networkCfgDropInDir, eksPrimaryENIOnlyConfName)
	if exists, err := util.IsFilePathExists(eksPrimaryENIOnlyConfPathName); err != nil {
		return fmt.Errorf("failed to check eks_primary_eni_only network configuration existance: %w", err)
	} else if exists {
		zap.L().Info("eks_primary_eni_only network configuration already exists, skipping configuration")
		return nil
	}

	eksPrimaryENIOnlyConfContent, err := a.generateEKSPrimaryENIOnlyConfiguration()
	if err != nil {
		return fmt.Errorf("failed to generate eks_primary_eni_only network configuration: %w", err)
	}
	zap.L().Info("writing eks_primary_eni_only network configuration")
	if err := os.MkdirAll(networkCfgDropInDir, networkConfDropInDirPerms); err != nil {
		return fmt.Errorf("failed to create network configuration drop-in directory %s: %w", networkCfgDropInDir, err)
	}
	if err := os.WriteFile(eksPrimaryENIOnlyConfPathName, eksPrimaryENIOnlyConfContent, networkConfFilePerms); err != nil {
		return fmt.Errorf("failed to write eks_primary_eni_only network configuration: %w", err)
	}
	if err := a.reloadNetworkConfigurations(); err != nil {
		return fmt.Errorf("failed to reload network configurations: %w", err)
	}
	return nil
}