S3 Cheat Sheet

Overview

  • Object store, or a file store with extra features
  • Object stored across 3+ AZs

Multipart Upload

  • Upload large files in parts concurrently πŸŽ“

S3 VPC Endpoint

  • Access S3 from private subnet
  • No need for NAT, no traversing the Internet
  • CANNOT use private IP in aws:SourceIp in bucket policy to restrict access to certain VPC, because new VPC with same CIDR may be created thus bypass the restriction
    • Instead, you can specify VPC directly in bucket policy
    • Or use your routing table

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