doc: Note only path-style URL support for S3

This adds a node to mention that currently only path-style URL's are supported for S3, as per code at:
- aa0faa8c7d/internal/backend/s3/config.go (L42-L45)
- aa0faa8c7d/internal/backend/s3/config.go (L48-L62)
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Wouter van Os 2021-01-23 16:54:08 +01:00 committed by GitHub
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@ -239,6 +239,10 @@ For an S3-compatible server that is not Amazon (like Minio, see below),
or is only available via HTTP, you can specify the URL to the server or is only available via HTTP, you can specify the URL to the server
like this: ``s3:http://server:port/bucket_name``. like this: ``s3:http://server:port/bucket_name``.
.. note:: Currently, restic only supports defining the `path-style URLs <https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html#access-bucket-intro>`__. Virtual-hostedstyle URLs, where the bucket name is in the
hostname itself (like ``bucket_name.s3.us-west-2.amazonaws.com``),
is not supported. It should be written in the path-style URL instead,
for example ``s3.us-west-2.amazonaws.com/bucket_name``.
.. note:: Certain S3-compatible servers do not properly implement the .. note:: Certain S3-compatible servers do not properly implement the
``ListObjectsV2`` API, most notably Ceph versions before v14.2.5. On these ``ListObjectsV2`` API, most notably Ceph versions before v14.2.5. On these