def commit(self):
        "Close archive and write index, dlq and tarball to S3"
        self.target.close()
        self.tarobj.seek(0)
        if self.dlq.tell() > 0:
            self.dlq.push()
        if self.index.tell() > 0:
            self.index.push()

            logger.info("uploading archive to s3://{bucket}/{key}".format(
                bucket=self.bucket,key=self.archivekey))
            try:
                self.s3.upload_fileobj(self.tarobj, self.bucket, self.archivekey)
            except botocore.exceptions.ClientError as e:
                logger.error("ERROR: Failed to upload archive: s3://{}/{}".format(self.bucket,
                    self.archivekey))
                logger.error("Exception: %s", e, exc_info=True)
                sys.exit(4)
        self.manifest.success()