AWS S3 Management

Table of Contents

• Overview
• When to Use
• Quick Start
• Reference Guides
• Best Practices

Overview

Amazon S3 provides secure, durable, and highly scalable object storage. Manage buckets with encryption, versioning, access controls, lifecycle policies, and cross-region replication for reliable data storage and retrieval.

When to Use

• Static website hosting
• Data backup and archival
• Media library and CDN origin
• Data lake and analytics
• Log storage and analysis
• Application asset storage
• Disaster recovery
• Data sharing and collaboration

Quick Start

Minimal working example:

# Create bucket
aws s3api create-bucket \
  --bucket my-app-bucket-$(date +%s) \
  --region us-east-1

# Enable versioning
aws s3api put-bucket-versioning \
  --bucket my-app-bucket \
  --versioning-configuration Status=Enabled

# Block public access
aws s3api put-public-access-block \
  --bucket my-app-bucket \
  --public-access-block-configuration \
    BlockPublicAcls=true,IgnorePublicAcls=true,\
    BlockPublicPolicy=true,RestrictPublicBuckets=true

# Enable encryption
aws s3api put-bucket-encryption \
  --bucket my-app-bucket \
  --server-side-encryption-configuration '{
    "Rules": [{
      "ApplyServerSideEncryptionByDefault": {
        "SSEAlgorithm": "AES256"
      }
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Best Practices

✅ DO

• Enable versioning for important data
• Use server-side encryption
• Block public access by default
• Implement lifecycle policies
• Enable logging and monitoring
• Use bucket policies for access control
• Enable MFA delete for critical buckets
• Use IAM roles instead of access keys
• Implement cross-region replication

❌ DON'T

• Make buckets publicly accessible
• Store sensitive credentials
• Ignore CloudTrail logging
• Use overly permissive policies
• Forget to set lifecycle rules
• Ignore encryption requirements