Add support to nextcloud image to use an S3 bucket as primary storage

[rendhalver]

No description provided.

[Wonderfall]

Could it be documented?

[rendhalver]

Yep. Will do that once I get it working here.
I preemptively opened the PR before I got it working.

[rendhalver]

Actually we don't seem to be able to use autoconfig to setup S3.
I will see if I can work out another way to do it.

[rendhalver]

This isn't going to work with your how your image is setup.
I have discovered a different way to do it.
Closing this for now.

[js-mode]

How did you get it to work? I have been trying to do this myself with S3 and also Amazon-RDS postgresSQL.

Did you find another image that you could make this work in?

[rendhalver]

I got it to work by adding an extra config file to the directory for the s3 settings.
It seems that you can do the same for other settings as needed.
When it started up it added those settings into the main config file.

[rendhalver]

@mode-js this has been reopened in #224