Key Takeaways

• AWS Config provides continuous configuration auditing and tracking of AWS resources.
• Core capabilities include configuration snapshots, compliance rules, conformance packs, and change notifications.
• Cost is usage‑based (≈ $0.01‑$0.10 per GB per month) and scales with the number of configuration items.
• Best practice: enable multi‑region/multi‑account recorders, define custom config rules, and integrate with remediation services (Lambda, Step Functions).
• AWS Config differs from AWS CloudTrail by focusing on resource state rather than API call logging.

What Is AWS Config?

AWS Config is a fully managed service that records, organizes, and evaluates the configuration and change history of AWS resources. It delivers a detailed, time‑ordered view of AWS Config service state, enabling compliance audits, security analysis, and operational troubleshooting across your AWS accounts and regions.

By continuously capturing configuration items (CIs) such as EC2 instances, S3 buckets, IAM roles, and RDS databases, AWS Config creates immutable snapshots that can be queried via the AWS Config API or the AWS Management Console. These snapshots form the foundation for AWS Config rules and AWS Config compliance evaluations.

Benefits of Using AWS Config

Implementing AWS Config yields several strategic advantages: