Shopware 6 S3 Integration: Resolving 'AccessControlListNotSupported' Errors

Shopware 6 S3 Integration: Resolving 'AccessControlListNotSupported' Errors

Integrating AWS S3 as a scalable and robust storage solution for Shopware 6 is a common requirement for many e-commerce businesses. It allows offloading static assets like media, sitemaps, and thumbnails, improving performance and simplifying infrastructure management. However, the configuration process can sometimes present specific challenges, as highlighted in a recent Shopware forum discussion.

The Challenge: 'AccessControlListNotSupported' Exception

A user, ruslankorbut773, sought assistance with configuring S3 for storing files from key Shopware directories: /files, /public/media, /public/sitemap, and /public/thumbnail. Despite reviewing the official Shopware documentation, the user encountered a persistent error: AccessControlListNotSupported Message: The bucket does not allow ACLs. This exception indicates a conflict between how the Shopware S3 adapter attempts to manage permissions and the S3 bucket's configuration.

The user provided a snippet of their YAML configuration, which, while indicating an intent to configure various filesystem types, lacked the specific S3 adapter configuration details:

shopware:
filesystem:
public:
url: „{url-to-your-public-files}“
# The Adapter Configuration
private:
visibility: „private“
# The Adapter Configuration
theme:
url: „{url-to-your-theme-files}“
# The Adapter Configuration
asset:
url: „{url-to-your-asset-files}“
# The Adapter Configuration
sitemap:
url: „{url-to-your-sitemap-files}“
# The Adapter Configuration

Another user, Max_Shop, correctly pointed to the official Shopware documentation on Filesystem and Amazon S3. However, the initial poster's continued struggles suggest that the documentation, while comprehensive, might not explicitly address the nuances of this specific error or the correct way to structure the full S3 adapter configuration to avoid it.

Understanding the 'AccessControlListNotSupported' Error

The AccessControlListNotSupported error typically arises when an S3 bucket has its "Object Ownership" setting configured to "Bucket owner enforced." This setting disables Access Control Lists (ACLs) for objects within the bucket, meaning all objects are owned by the bucket owner, and permissions are managed exclusively through bucket policies. When the Shopware S3 adapter, by default or through an explicit configuration option (e.g., Acl: 'public-read' or Acl: 'private'), attempts to set an ACL on an object in such a bucket, S3 rejects the request.

Key to Resolution: Complete S3 Adapter Configuration

The forum discussion highlights that the critical missing piece in the user's initial setup was the comprehensive S3 adapter configuration. For Shopware to successfully use S3, the shopware.filesystem configuration in files like config/packages/shopware.yaml or config/packages/prod/shopware.yaml must include the type, adapter, and detailed config for S3, including credentials, region, bucket name, and crucially, the options for the adapter.

To avoid the ACL error, especially with newer S3 buckets or those with "Bucket owner enforced" object ownership, the S3 adapter configuration should either:

• Omit the Acl option entirely if the adapter intelligently handles it, or if your bucket policy grants the necessary permissions.
• Explicitly set Acl: '' (empty string) or a similar value if the adapter requires the option but you want to signal no ACL should be applied.

Instead of relying on ACLs, permissions for public access (e.g., for media files) should be managed via a robust S3 bucket policy, and private access (e.g., for certain backend files) should be controlled through IAM user/role policies.

A typical, more complete S3 configuration snippet (simplified for illustration) would look like this:

shopware:
    filesystem:
        public:
            type: 'amazon-s3'
            url: 'https://cdn.example.com' # Your S3 CDN URL
            adapter: 'amazon-s3'
            config:
                bucket: 'your-public-bucket-name'
                region: 'eu-central-1'
                credentials:
                    key: '%env(AWS_ACCESS_KEY_ID)%' # Use environment variables for security
                    secret: '%env(AWS_SECRET_ACCESS_KEY)%'
                options:
                    # If your S3 bucket has 'Object Ownership' set to 'Bucket owner enforced' (recommended),
                    # ACLs are disabled. Do NOT specify 'Acl' here or ensure it's compatible if your bucket allows them.
                    # For public files, a bucket policy granting 's3:GetObject' access to 'public' is usually preferred.
                    # Acl: 'public-read' # Only specify if your bucket supports and requires ACLs for public access.
        private:
            type: 'amazon-s3'
            visibility: 'private'
            adapter: 'amazon-s3'
            config:
                bucket: 'your-private-bucket-name'
                region: 'eu-central-1'
                credentials:
                    key: '%env(AWS_ACCESS_KEY_ID)%' # Use environment variables for security
                    secret: '%env(AWS_SECRET_ACCESS_KEY)%'
                options:
                    # Acl: 'private' # Only specify if your bucket supports and requires ACLs for private access.
                    # For private files, ensure your IAM user/role has appropriate permissions via policies.

Conclusion

The forum topic, while short on direct solutions, highlights a critical and common hurdle in Shopware 6 S3 integration. Successfully configuring S3 requires a precise understanding of both Shopware's filesystem abstraction and AWS S3's permission model, particularly regarding Object Ownership and ACLs. By correctly defining the S3 adapter configuration and aligning it with the S3 bucket's permission settings, Shopware users can leverage the full benefits of cloud storage.