Creating AWS S3 Buckets and Using the CLI

aws s3 mb s3://my-bucket-name --region ap-northeast-2
aws s3 ls
aws s3 ls s3://my-bucket-name/
aws s3 ls s3://my-bucket-name/logs/ --recursive

aws s3 cp file.txt s3://my-bucket/file.txt
aws s3 cp ./dist/ s3://my-bucket/dist/ --recursive

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

aws s3 sync ./dist/ s3://my-bucket/ --delete
aws s3 sync s3://my-bucket/backups/ ./backups/

aws s3 sync . s3://my-bucket/ --exclude "*.log" --exclude ".git/*"

aws s3 cp backup.tar.gz s3://my-bucket/backups/ \
  --storage-class STANDARD_IA

# Presigned URL (1 hour)
aws s3 presign s3://my-bucket/private.pdf --expires-in 3600

{
  "Version": "2012-10-17",
  "Statement": [{
    "Effect": "Allow",
    "Principal": "*",
    "Action": "s3:GetObject",
    "Resource": "arn:aws:s3:::my-bucket/*"
  }]
}

aws s3api put-bucket-policy \
  --bucket my-bucket \
  --policy file://bucket-policy.json

aws s3 website s3://my-bucket/ \
  --index-document index.html \
  --error-document error.html

#!/bin/bash
DATE=$(date +%Y%m%d-%H%M)
BACKUP_FILE="/tmp/db-backup-${DATE}.tar.gz"

pg_dump mydb | gzip > "$BACKUP_FILE"
aws s3 cp "$BACKUP_FILE" "s3://my-backups/db/${DATE}.tar.gz" \
  --storage-class STANDARD_IA
rm -f "$BACKUP_FILE"

# crontab
0 3 * * * /opt/scripts/backup-to-s3.sh >> /var/log/s3-backup.log 2>&1