def has_operator_manifest(self):
        """
        Check if Dockerfile sets the operator manifest label

        :return: bool
        """
        dockerfile = df_parser(self.workflow.builder.df_path, workflow=self.workflow)
        labels = Labels(dockerfile.labels)
        try:
            _, operator_label = labels.get_name_and_value(Labels.LABEL_TYPE_OPERATOR_MANIFESTS)
        except KeyError:
            operator_label = 'false'
        return operator_label.lower() == 'true'
Check if Dockerfile sets the operator manifest label

        :return: bool