Systemd 和 Gunicorn 需要某种 wsgi 文件作为最后一个参数ExecStart: http://docs.gunicorn.org/en/latest/deploy.html?highlight=ExecStart#systemd http://docs.gunicorn.org/en/latest/deploy.html?highlight=ExecStart#systemd
对于 Django，这是在主模块中的wsgi.py:
ExecStart=/home/admin/django/bin/gunicorn --config /home/admin/src/gunicorn.py --bind unix:/tmp/api.sock myapp.wsgi
但是当使用 Sanic 和 uvloop 时这个文件显然不存在（我相信新协议叫做 ASGI）。我尝试用它代替app.py不出所料，这不起作用：
ExecStart=/home/admin/sanic/bin/gunicorn --config /home/admin/src/gunicorn.py --bind unix:/tmp/api.sock myapp.app
使用Sanic时这个参数应该如何配置？
如果你想用 systemd 启动 sanic，为什么不使用 supervisrod：主管 http://supervisord.org/.
启动 -> Systemd ->supervisord ->gunicorn ->sanic
[unix_http_server]
file=/tmp/supervisor.sock ; path to your socket file
[supervisord]
logfile=/var/log/supervisord/supervisord.log ; supervisord log file
logfile_maxbytes=50MB ; maximum size of logfile before rotation
logfile_backups=10 ; number of backed up logfiles
loglevel=error ; info, debug, warn, trace
pidfile=/var/run/supervisord.pid ; pidfile location
nodaemon=false ; run supervisord as a daemon
minfds=1024 ; number of startup file descriptors
minprocs=200 ; number of process descriptors
user=root ; default user
childlogdir=/var/log/supervisord/ ; where child log files will live
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL for a unix socket
[program:ctrlapi]
directory=/home/ubuntu/api
command=/home/ubuntu/api/venv3/bin/gunicorn api:app --bind 0.0.0.0:8000 --worker-class sanic.worker.GunicornWorker -w 2
stderr_logfile = log/api_stderr.log
stdout_logfile = log/api_stdout.log
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