service.py 文件源码

def _update(self, compose_file, new_settings, force=False):
        if not force:
            settings, digests = self.current_settings
            digests = digests and json.loads(b64decode(digests).decode())
            if settings == new_settings and digests is not None:
                new_digests = self._get_digests(digests)
                if digests == new_digests:
                    return False
        with fab.cd(self.temp_dir):
            fab.put(six.BytesIO(compose_file), self.actual_compose_file)
            fabricio.run('docker stack deploy {options} {name}'.format(
                options=utils.Options(self.options),
                name=self.name,
            ))
        self.stack_updated.set()
        return True