File injection to containers is possible with the Storage function. It's S3 compatible, as of now only Azure Blob Storage isn't supported.
Amazon S3 is a scalable and highly available object storage service. We decided to go with S3 as it’s one of the most popular solutions that offer interoperability with a fair number of open-source projects. They offer a bunch of functions as a flat structure file storage, including versioning, different types of access control, and so on.
One example of S3 use cases is to upload the object via a REST endpoint and the object will be available through a simple URL.
Amazon S3 isn’t open-source but a few open-source implementations are listed below: