启动uWSGI实例失败，代码203

Question

我想用nginx和uWSGI在Ubunut 16.04上部署Flask应用程序，但每当我使用sudo systemctl start nebulon时，我没有收到错误，但状态显示如下：

nebulon.service - uWSGI instance to serve nebulon
   Loaded: loaded (/etc/systemd/system/nebulon.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sat 2017-09-16 18:08:35 UTC; 5s ago
  Process: 18718 ExecStart=/nebulonapp/nebulon.sock --ini /nebulonapp/nebulon.ini (code=exited, status=203/EXEC)
 Main PID: 18718 (code=exited, status=203/EXEC)

在星云服务公司名称：

^{pr2}$

在/nebulonapp我有星云.ini公司名称：

[uwsgi]
chdir=/nebulonapp/
wsgi-file = wsgi.py
callable = app
plugin=python35

master = true
processes = 5

socket = nebulon.sock
chmod-socket = 666
vacuum = true

die-on-term = true

nebulon.sock在/nebulonapp中，但它是空的。uWSGI的状态如下：

uwsgi.service - LSB: Start/stop uWSGI server instance(s)
   Loaded: loaded (/etc/init.d/uwsgi; bad; vendor preset: enabled)
   Active: active (exited) since Sat 2017-09-16 18:22:53 UTC; 10s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 18828 ExecStop=/etc/init.d/uwsgi stop (code=exited, status=0/SUCCESS)
  Process: 18854 ExecStart=/etc/init.d/uwsgi start (code=exited, status=0/SUCCESS)

Sep 16 18:22:53 nebulon systemd[1]: Stopped LSB: Start/stop uWSGI server instance(s).
Sep 16 18:22:53 nebulon systemd[1]: Starting LSB: Start/stop uWSGI server instance(s)...
Sep 16 18:22:53 nebulon uwsgi[18854]:  * Starting app server(s) uwsgi
Sep 16 18:22:53 nebulon uwsgi[18854]:    ...done.
Sep 16 18:22:53 nebulon systemd[1]: Started LSB: Start/stop uWSGI server instance(s).

不过，用下面的命令测试uWSGI是可行的。在

uwsgi --socket 0.0.0.0:5000 --plugin-python3 --protocol=http -w wsgi:app

谢谢你的帮助。在

Answer 1

问题在于权限。您正在遵循的digital ocean指南缺少一个关键步骤—nginx使用www数据组创建套接字，因此您需要将项目文件夹的所有权授予该组，并确保与您一起执行的用户也是其中的一部分。在

只需运行这两个命令

chown -R sammy:www-data /home/sammy/<project>/*

usermod -aG www-data sammy