[gaul]

S3Proxy offers similar multi-protocol access at the S3 API layer:

https://github.com/andrewgaul/s3proxy

It has compatibility with local filesystem, Backblaze B2, Google Cloud Storage, Microsoft Azure, and OpenStack Swift. Note that this is software and not a service.

[S3Proxy author plug]

[pierrec]

>Note that this is software and not a service.

It appears that Cloudrail not a service either, just a commercially licensed library (like Qt for example). In fact, I find their simple library approach a bit less awkward than your local server approach, though I suppose that was necessary in order to make a neat drop-in replacement for code that's already targeting S3.

[bedros]

is this compatible with django-storages (which supports S3)

[gaul]

S3Proxy uses Apache jclouds underneath which has broad compatibility with object stores including S3 clones. However no two S3 implementations are alike so you will need to test.