security

To prevent Terraform from storing RDS passwords in state, enforce ephemeral passwords and implement IAM database authentication. This approach ensures sensitive credentials are dynamically generated and authenticated via AWS IAM rather than persisted in configuration files.

Least-privilege networking for AWS Lambda and RDS security groups involves configuring strict inbound and outbound rules that avoid open access like 0.0.0.0/0. This restricts network traffic to only necessary ports and IP ranges, minimizing attack surfaces.

To secure API Gateway and ECS security groups in Terraform, apply least-privilege rules by avoiding 0.0.0.0/0 inbound and outbound permissions. Restrict access to specific CIDR blocks and required ports for secure AWS deployments.

IAM database authentication works with Aurora and Secrets Manager in Terraform to manage ephemeral passwords securely. This integration prevents secret exposure by relying on temporary tokens instead of storing static database credentials in state files.

Terraform configurations leak secrets into state when static passwords are defined directly in infrastructure code. Implementing ephemeral password enforcement and IAM database authentication prevents sensitive data like RDS credentials from being persisted in state files.