cloud tier to non-AWS s3 gateways

weed/storage/backend/s3_backend/s3_sessions.go

@@ -36,6 +36,7 @@ func createSession(awsAccessKeyId, awsSecretAccessKey, region, endpoint string)
 	config := &aws.Config{
 		Region:           aws.String(region),
 		Endpoint:         aws.String(endpoint),
+		S3ForcePathStyle: aws.Bool(true),
 	}
 	if awsAccessKeyId != "" && awsSecretAccessKey != "" {
 		config.Credentials = credentials.NewStaticCredentials(awsAccessKeyId, awsSecretAccessKey, "")