```
        $args = [
            'version' => '2006-03-01',
            'region' => 'eu-west-1',
            'credentials' => CredentialsProvider::get(),
            'http' => ['decode_content' => false],
            'retries' => 6,
            'endpoint' => 'http://localstack:4572',
            'bucket_endpoint' => true
        ];

        $this->client = new S3Client($args);
        $result = $this->client->createBucket([
            'Bucket' => "localbucket",
        ]);
        $buckets = $this->client->listBuckets();
```

$result shows the `@metadata` statusCode as 200 however the returned Location which should tell me where the created bucket is, is an empty string. So it isn't creating the bucket, but I'm getting a 200 response. Just to be sure I run `listBuckets()` and it confirms nothing is being created.

docker-compose.yml settings for localstack:

```
    localstack:
        container_name: localstack
        image: localstack/localstack
        ports:
          - "4567-4593:4567-4593"
          - "${PORT_WEB_UI-8080}:${PORT_WEB_UI-8080}"
        environment:
          - HOSTNAME=pi.docker
          - SERVICES=s3,dynamodb
          - DEFAULT_REGION=eu-west-1
#            - DEBUG=${DEBUG- }
          - DATA_DIR=/tmp/localstack/data
          - PORT_WEB_UI=8080
#            - LAMBDA_EXECUTOR=local
          - DYNAMODB_ERROR_PROBABILITY=0.0
          - DOCKER_HOST=unix:///var/run/docker.sock
        volumes:
          - "${TMPDIR:-/tmp/localstack}:/tmp/localstack"
          - "/var/run/docker.sock:/var/run/docker.sock"
```

Bonus issue: as far as I can tell persistence for s3 doesn't work, I've set DATA_DIR, I've tried changing the volume to `"localstack:/tmp/localstack"` and setting a persisting volume for that. And the directory does persist, however the s3 data isn't stored here so it's reset when taking down the container.
def is_s3_copy_request(self, headers, path):
        return 'x-amz-copy-source' in headers or 'x-amz-copy-source' in path
    def forward_request(self, method, path, data, headers):
        
        
        if 's3.amazonaws.com' not in headers.get('host', ''):
            headers['host'] = 'localhost'
        
        if 'Content-MD5' in headers and not self.is_s3_copy_request(headers, path):
            response = check_content_md5(data, headers)
            if response is not None:
                return response
        modified_data = None
        
        bucket_name = get_bucket_name(path, headers)
        if method == 'PUT' and not re.match(BUCKET_NAME_REGEX, bucket_name):
            return error_response('The specified bucket is not valid.', 'InvalidBucketName', status_code=400)
        
        to_find = to_bytes('<LocationConstraint>us-east-1</LocationConstraint>')
        if data and data.startswith(to_bytes('<')) and to_find in data:
            modified_data = data.replace(to_find, to_bytes(''))
        
        
        
        
        if headers.get('x-amz-content-sha256') == 'STREAMING-AWS4-HMAC-SHA256-PAYLOAD':