About This Architecture

AWS Production Account Service Interaction Graph illustrates a distributed microservices architecture spanning three AWS accounts with cross-account S3, SNS, and SQS interactions. Data services write to the acme-shared-data-lake S3 bucket while ML and search services consume data via GetObject and ListBucket operations; payment events flow through SNS topics to billing and fraud services, which publish results to SQS queues for asynchronous processing. This architecture demonstrates least-privilege IAM patterns, event-driven decoupling, and centralized CloudWatch Logs aggregation across accounts 100000000001, 100000000002, and 300000000001. Fork this diagram on Diagrams.so to customize service names, add additional queues, or adjust IAM permissions for your production environment. The pattern balances scalability with operational visibility through multi-account log consolidation.

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How do you design a multi-account AWS architecture where microservices interact through S3, SNS, and SQS with least-privilege IAM?

This diagram shows three AWS accounts where data services write to a shared S3 data lake, payment services publish events to SNS topics subscribed by fraud and billing services, and fraud services send results to SQS queues. CloudWatch Logs are centrally aggregated across all accounts for unified observability.