Hello Malte,
The redesign for the asset store assumes that if you wanted to use a different implementation for storage, then you would write a new java class that implements the interface.
Given that some non-Amazon service could implement the same S3 API, to use the non-Amazon service, then the only change you would need to make, would be to set a different endpoint. You will need to make a small customization to the S3BitSoreService.java file inside the init() method, and do s3Service.setEndpoint("
http://my-ceph-cluster.url");