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:

Guide	Contents
S3 Bucket Creation and Configuration with AWS CLI	S3 Bucket Creation and Configuration with AWS CLI
S3 Lifecycle Policy Configuration	S3 Lifecycle Policy Configuration
Terraform S3 Configuration	Terraform S3 Configuration
S3 Access with Presigned URLs	S3 Access with Presigned URLs

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