According to Amazon’s official website, Amazon Virtual Private Cloud (VPC) Flow Logs can be directly delivered to Amazon Simple Storage Service, also known as S3. This will be made possible by using the AWS Command Line Interface (CLI) or through Amazon EC2 or VPC console. VPC Flow Logs can now be delivered to both S3 and CloudWatch Logs.
This latest update is particularly important when users wish for cost-effective and simple archiving of their log events. Users can also take advantage of “the different storage classes of S3, such as Amazon S3 Standard-Infrequent Access, or write custom data processing applications using other solutions, such as Amazon Athena.”
Another function that would be made convenient by delivering VPC Flow Logs to CloudWatch Logs is the monitoring of systems and applications. Users will also be able to visualize and generate metrics through Metric Filter Patterns and CloudWatch Dashboards, set up alerts on log-based metrics and search log events by using CloudWatch Logs while solving issues.