Bash Script to Create S3 Bucket with Public Website Hosting

Readme.md

S3 Bucket Setup Script

This script automates the process of setting up an S3 bucket in AWS. It performs the following tasks:

1. Checks if the specified S3 bucket already exists.
2. Creates the bucket if it does not exist.
3. Removes Block Public Access settings from the bucket.
4. Attaches a specified bucket policy to allow public read access.
5. Configures CORS settings for the bucket.
6. Enables static website hosting on the bucket.

Usage

./s3_setup.sh --bucket-name BUCKET_NAME --region REGION --profile PROFILE

s3-create.sh

#!/bin/bash

# Function to display usage
usage() {
  echo "Usage: $0 --bucket-name BUCKET_NAME --region REGION --profile PROFILE"
  exit 1
}

# Parse command-line arguments
while [[ "$#" -gt 0 ]]; do
  case $1 in
    --bucket-name) BUCKET_NAME="$2"; shift ;;
    --region) REGION="$2"; shift ;;
    --profile) PROFILE="$2"; shift ;;
    *) usage ;;
  esac
  shift
done

# Validate required arguments
if [ -z "$BUCKET_NAME" ] || [ -z "$REGION" ] || [ -z "$PROFILE" ]; then
  usage
fi

# Check if the bucket already exists
if aws s3api head-bucket --bucket "$BUCKET_NAME" --profile $PROFILE 2>/dev/null; then
  echo "Bucket already exists."
else
  # If the bucket does not exist, create it
  echo "Bucket does not exist. Creating bucket..."
  aws s3api create-bucket --bucket $BUCKET_NAME --region $REGION --create-bucket-configuration LocationConstraint=$REGION --profile $PROFILE
  echo "Bucket created successfully."
fi

# Remove Block Public Access settings
echo "Removing Block Public Access settings..."
aws s3api delete-public-access-block --bucket $BUCKET_NAME --profile $PROFILE

# Attach the specified bucket policy
POLICY='{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "PublicReadGetObject",
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:GetObject",
            "Resource": [
                "arn:aws:s3:::'$BUCKET_NAME'",
                "arn:aws:s3:::'$BUCKET_NAME'/*"
            ]
        }
    ]
}'
aws s3api put-bucket-policy --bucket $BUCKET_NAME --policy "$POLICY" --profile $PROFILE

# Configure CORS for the bucket
CORS='{
    "CORSRules": [
        {
            "AllowedHeaders": [
                "*"
            ],
            "AllowedMethods": [
                "PUT",
                "POST",
                "GET"
            ],
            "AllowedOrigins": [
                "*"
            ],
            "ExposeHeaders": [],
            "MaxAgeSeconds": 0
        }
    ]
}'
aws s3api put-bucket-cors --bucket $BUCKET_NAME --cors-configuration "$CORS" --profile $PROFILE

# Enable static website hosting
aws s3 website s3://$BUCKET_NAME/ --index-document index.html --error-document error.html --profile $PROFILE

echo "All configurations applied successfully."