S3 Advanced — Event Notifications, Access Points, Object Lambda, S3 Select

Tổng quan

S3 không chỉ là object storage. Các tính năng nâng cao biến S3 thành nền tảng cho event-driven architecture, data processing, và access management phức tạp.

Event Notifications

• Trigger khi: s3:ObjectCreated, s3:ObjectRemoved, s3:ObjectRestore, s3:Replication...
• Targets: Lambda, SQS, SNS, EventBridge.
• EventBridge integration: advanced filtering, multiple targets, archive & replay.
• Filter: prefix + suffix (vd: images/*.jpg).
• Use case: thumbnail generation, virus scan, ETL trigger.

Access Points & Object Lambda

• Access Point: named endpoint với policy riêng, đơn giản hóa shared bucket.
• Mỗi Access Point có DNS name, policy, VPC restriction riêng.
• Multi-Region Access Points: single endpoint, auto-route tới nearest region.
• Object Lambda Access Point: chèn Lambda transform khi GET object.
• Use case Object Lambda: redact PII, resize image, convert format on-the-fly.

S3 Select & Batch Operations

• S3 Select: SQL query trên single object (CSV, JSON, Parquet). Giảm data transfer.
• Glacier Select: query trực tiếp trên archived data.
• Batch Operations: thực hiện action trên hàng tỷ objects (copy, tag, restore, invoke Lambda).
• Batch Operations + S3 Inventory: list objects → create job → execute.
• Use case Batch: migrate storage class, add encryption, copy cross-account.