Ghost storage adapter S3

An AWS S3 storage adapter for Ghost 1.x - 3.x

Configuration

"storage": {
  "active": "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)",
    "signatureVersion": "REGION_SIGNATURE_VERSION (See note 5 below)",
    "pathPrefix": "YOUR_OPTIONAL_BUCKET_SUBDIRECTORY",
    "endpoint": "YOUR_OPTIONAL_ENDPOINT_URL (only needed for 3rd party S3 providers)",
    "serverSideEncryption": "YOUR_OPTIONAL_SSE (See note 2 below)",
    "forcePathStyle": true,
    "acl": "YOUR_OPTIONAL_ACL (See note 4 below)",
    "cacheControl": "YOUR_OPTIONAL_CACHE_CONTROL (See note 6 below)",
  }
}

Note 1: 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.

Note 2: if your s3 bucket enforces SSE use serverSideEncryption with the appropriate supported value.

Note 3: if your s3 providers requires path style you can enable it with forcePathStyle

Note 4: if you use CloudFront the object ACL does not need to be set to "public-read"

Note 5: Support for AWS4-HMAC-SHA256

Note 6: How long to cache the image for (default is 30 days)

Via environment variables

AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY
AWS_DEFAULT_REGION
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_SSE // optional
GHOST_STORAGE_ADAPTER_S3_FORCE_PATH_STYLE // optional
GHOST_STORAGE_ADAPTER_S3_ACL // optional
GHOST_STORAGE_ADAPTER_S3_CACHE_CONTROL // optional