dockerfile安装报错 怎么解决

Cannot find JWT_PRIVATE_KEY value from environment, try to read .env file.
Error: .env file not found.
Please follow the upgrade manual to set the .env file.

Traceback (most recent call last):
File “/scripts/start.py”, line 94, in
main()
File “/scripts/start.py”, line 79, in main
call(‘{} start’.format(get_script(‘seafile.sh’)))
File “/scripts/utils.py”, line 70, in call
return subprocess.check_call(*a, **kw)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3.12/subprocess.py”, line 413, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command ‘/opt/seafile/seafile-server-12.0.14/seafile.sh start’ returned non-zero exit status 255.

错误提示,缺少.env文件。参考部署文档https://cloud.seafile.com/wiki/publish/seafile-manual/9Uue/(安装12.0版本,13.0未正式发布)