Following the restic to minio setup -> https://docs.minio.io/docs/restic-with-minio

I create a bucket on minio-sia, which is fine

I then try to initialise a repository on that server and it fails with;

restic init
create backend at s3:http://192.168.1.99:9001/restic failed: client.BucketExists: The request signature we calculated does not match the signature you provided. Check your key and signing method.

This is the log from the docker;

time="2017-08-30T21:17:14+01:00 level=error msg="{"method":"GET","reqURI":"/restic/?location=","header":{"Accept-Encoding":["gzip"],"Authorization":["AWS4-HMAC-SHA256 Credential=/20170830/us-east-1/s3/aws4_request, SignedHeaders=host;x-amz-content-sha256;x-amz-date, Signature=f61e152f554c826148b8285cb19f9a051e3b05d124c45680d988a83e7998922b"],"Host":["192.168.1.99:9001"],"User-Agent":["Minio (darwin; amd64) minio-go/3.0.0"],"X-Amz-Content-Sha256":["e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"],"X-Amz-Date":["20170830T201714Z"]}}" cause="Signature does not match" source="[gateway-handlers.go:907:gatewayAPIHandlers.GetBucketLocationHandler()]"

Executing the same command on a locally created minio instance on a mac allows the repository to be initialised and backups to occur successfully.