Wrap `s3` commands to use `--endpoint-url`

[tombh]

Official docs here.

This would enable 2 significant things:

1. Fully isolated tests using something like localstack
2. Local buckets using something like Minio

I wonder if this can be done by just creating a aws-custom script proxying to aws, then replacing all occurrences of aws in the dynamic tiler code?

[mojodna]

See also https://github.com/aws/aws-cli/issues/1270

Yeah, that seems like a really clean way of doing it; we could inject our own environment variable checks there.

[fatihtekin]

you can do below work around

from boto3 import Session
Session.client.defaults = (None, None, False, None, 'http://localhost:4575', None, None, None, None)