Hi! I'm successfully using DO Spaces with an Elixir libarary (https://github.com/bryanjos/aws_auth) to build presigned urls:
I'd like to connect a subdomain app.domain.de to a DI droplet.
I've asked my domain provider what to do and he said I might just add an A Record for that subdomain and set the IP, but that didn't work.
The problem you encountered is likely due to the wildcard subdomain records you have in place. If a visitor were to request do.domain.de this request would match both your current record:
*.domain.de A 99.888....