AWS — S3

What is S3?

Simple Storage Service for object storage with high durability.

Create bucket

aws s3 mb s3://my-unique-bucket-name

Upload files

# Single file
aws s3 cp file.txt s3://my-bucket/

# Directory
aws s3 cp ./folder s3://my-bucket/folder --recursive

# Sync directory
aws s3 sync ./folder s3://my-bucket/folder

Download files

aws s3 cp s3://my-bucket/file.txt .
aws s3 sync s3://my-bucket/folder ./folder

List contents

# List buckets
aws s3 ls

# List bucket contents
aws s3 ls s3://my-bucket/

# List with details
aws s3 ls s3://my-bucket/ --recursive --human-readable

Delete

# Delete object
aws s3 rm s3://my-bucket/file.txt

# Delete all objects
aws s3 rm s3://my-bucket/ --recursive

# Delete bucket
aws s3 rb s3://my-bucket

Versioning

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

# List versions
aws s3api list-object-versions --bucket my-bucket

Lifecycle rules

{
  "Rules": [
    {
      "ID": "Move to Glacier",
      "Status": "Enabled",
      "Transitions": [
        {
          "Days": 30,
          "StorageClass": "GLACIER"
        }
      ]
    }
  ]
}

CORS configuration

{
  "CORSRules": [
    {
      "AllowedOrigins": ["*"],
      "AllowedMethods": ["GET", "PUT"],
      "AllowedHeaders": ["*"]
    }
  ]
}

Mini Practice

1. Create a bucket
2. Upload and download files
3. Enable versioning
4. Set lifecycle rules

Up Next

Continue with RDS - Managed Databases.