At a minimum can we get a json endpoint or key listing from your object storage and parse it ourselves ?look up the installation file on our software packages download page on our main website.
I went down the rabbit hole of hitting the AWS marketplace api for the version information but it is impossible to embed this in a Dockerfile as it requires authentication for rate limiting.
Even better would be real software repos for your debs and rpms on linux , the file structure is not too complex and really just needs proper folders and package references. There are multiple helper packages on both fronts that will work with your current hosting provider as it is just an http endpoint:
I am trying to ingest your latest version number and properly tag our docker images for LinuxServer.io. Right now we hard code it in the Dockerfile.