GhoS3

An AWS S3 storage adapter tested on Ghost 5.x.

This is a modernized version based on colinmeinke/ghost-storage-adapter-s3. Major changes are:

Adopted async/await
Rewritten in TypeScript
Use latest Version 3 of AWS SDK

It's designed to be a drop-in replacement of colinmeinke's package, so configuration and installation method remained largely the same.

However, this port pretty much targets only Ghost 5.x and up, as the build toolchain is set to target Node 16.x. With some modifications this should work for older version of Ghost (PRs welcomed).

On my blog The Base, I use Cloudflare R2 with GhoS3.

Installation

# Install ghos3 package
npm install ghos3

# Create directory to storage adapter
mkdir -p ./content/adapters/storage

# Copy package files to s3 storage folder
cp -r ./node_modules/ghos3/* ./content/adapters/storage/s3

# Remove unnecessary files generated from ghos3 installation
rm -Rf node_modules package-lock.json package.json

# Move to s3 storage folder
cd ./content/adapters/storage/s3

# Resolve dependencies
npm install

Configuration

Largely the same, but note signatureVersion and serverSideEncryption are removed since in AWS SDK v3 they're implemented differently than just a simple string field (PRs welcomed, of course).

"storage": {
  "active": "s3",
  "media":{
     "adapter": "s3"
  },
  "files": {
    "adapter": "s3"
  },
  "s3": {
    "accessKeyId": "YOUR_ACCESS_KEY_ID",
    "secretAccessKey": "YOUR_SECRET_ACCESS_KEY",
    "region": "YOUR_REGION_SLUG",
    "bucket": "YOUR_BUCKET_NAME",
    "assetHost": "YOUR_OPTIONAL_CDN_URL (See note 1 below)",
    "pathPrefix": "YOUR_OPTIONAL_BUCKET_SUBDIRECTORY",
    "endpoint": "YOUR_OPTIONAL_ENDPOINT_URL (only needed for 3rd party S3 providers)",
    "forcePathStyle": true,
    "acl": "YOUR_OPTIONAL_ACL (See note 3 below)",
  }
}

Notes

Be sure to include // or the appropriate protocol within your assetHost string/variable to ensure that your site's domain is not prepended to the CDN URL.
If your S3 provider requires path style, you can enable it with forcePathStyle.
If you use CloudFront the object ACL does not need to be set to public-read.

Via environment variables

AWS_DEFAULT_REGION
AWS_ACCESS_KEY_ID // optional
AWS_SECRET_ACCESS_KEY // optional
GHOST_STORAGE_ADAPTER_S3_PATH_BUCKET
GHOST_STORAGE_ADAPTER_S3_ASSET_HOST  // optional
GHOST_STORAGE_ADAPTER_S3_PATH_PREFIX // optional
GHOST_STORAGE_ADAPTER_S3_ENDPOINT // optional
GHOST_STORAGE_ADAPTER_S3_FORCE_PATH_STYLE // optional
GHOST_STORAGE_ADAPTER_S3_ACL // optional

For configuration on the AWS side, colinmeinke's original README has a detailed tutorial to set your up.

License