Utterly simple approach to create an AWS S3 static website via AWS CLI.

create-s3-static-website.sh

#!/bin/bash

if [ $# -ne 2 ] ; then
	echo "Usage: ./create-s3-website.sh <s3-bucket-name> <website-local-dir>"
	exit 1
fi

S3_BUCKET_NAME=$1
WEBSITE_DIR=$2
INDEX_DOCUMENT=index.html

REGION=$(aws configure get region)

aws s3 mb s3://$S3_BUCKET_NAME  || { echo '[!] Could not create S3 bucket.' ; exit 1; }

aws s3 sync $WEBSITE_DIR s3://$S3_BUCKET_NAME/  || { echo '[!] Could not create S3 bucket.' ; exit 1; }

aws s3 mb s3://$S3_BUCKET_NAME  || { echo '[!] Could not create S3 bucket.' ; exit 1; }

cat <<EOT > /tmp/.s3_bucket_policy
{
  "Version":"2012-10-17",
  "Statement":[
    {
      "Sid":"AddPerm",
      "Effect":"Allow",
      "Principal": "*",
      "Action":["s3:GetObject"],
      "Resource":["arn:aws:s3:::$S3_BUCKET_NAME/*"]
    }
  ]
}
EOT

aws s3api put-bucket-policy --bucket $S3_BUCKET_NAME --policy file:///tmp/.s3_bucket_policy || { echo '[!] Could not put bucket policy.' ; rm /tmp/.s3_bucket_policy ; exit 1; }
rm /tmp/.s3_bucket_policy

aws s3 website s3://$S3_BUCKET_NAME --index-document $INDEX_DOCUMENT || { echo '[!] Could not create S3 static website.' ; exit 1; }

echo
echo "[+] S3 static website created. URL:"
echo -e "\thttp://$S3_BUCKET_NAME.s3-website-$REGION.amazonaws.com"