nginx with gunicorn and django on centos 7 - django

Question

I'm trying to make my nginx and gunicorn start working... but seemingly trying everything I could do, fails...
If I do:
systemctl restart nginx
systemctl status nginx
It shows green, and it works...
If I do:
systemctl start gunicorn.socket
systemctl status gunicorn.socket -l
It shows green and works fine...
But if I do:
systemctl start gunicorn.service
systemctl status gunicorn.service -l
it shows me the following message:
gunicorn.service - gunicorn daemon
Loaded: loaded (/etc/systemd/system/gunicorn.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Thu 2020-09-10 14:17:23 UTC; 15min ago
Process: 22145 ExecStart=/home/scorg/pro/sc_project/bin/gunicorn --workers 3 --bind unix:/home/scorg/pro/projects/sc/sc.sock sc.wsgi:application (code=exited, status=3)
Main PID: 22145 (code=exited, status=3)
Sep 10 14:17:23 gunicorn[22145]: File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
Sep 10 14:17:23 gunicorn[22145]: File "<frozen importlib._bootstrap>", line 991, in _find_and_load
Sep 10 14:17:23 gunicorn[22145]: File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
Sep 10 14:17:23 : ModuleNotFoundError: No module named 'sc'
Sep 10 14:17:23 : [2020-09-10 14:17:23 +0000] [22152] [INFO] Worker exiting (pid: 22152)
Sep 10 14:17:23 : [2020-09-10 14:17:23 +0000] [22145] [INFO] Shutting down: Master
Sep 10 14:17:23 : [2020-09-10 14:17:23 +0000] [22145] [INFO] Reason: Worker failed to boot.
Sep 10 14:17:23 : gunicorn.service: main process exited, code=exited, status=3/NOTIMPLEMENTED
Sep 10 14:17:23 : Unit gunicorn.service entered failed state.
Sep 10 14:17:23 : gunicorn.service failed.
I kind of understand it is bind problem and I followed this question:
Gunicorn, no module named 'myproject
But whatever module I try to bind with the following command, it just doesn't work:
gunicorn --bind 0.0.0.0:8000 wsgi:application
I tried wsgi, sc.wsgi, sc/wsgi, /whole_path/wsgi It's just always the same result... mofule not found...
my gunicorn.service looks like this:
#!/bin/sh
[Unit]
Description=gunicorn daemon
Requires=gunicorn.socket
After=network.target
[Service]
User=root
#scorg
Group=root
#www-data
Environment=SECRET_KEY=secret
WorkingDirectory=/home/scorg/pro/projects/sc/sc
ExecStart=/home/scorg/pro/sc_project/bin/gunicorn --workers 3 --bind unix:/home/scorg/pro/projects/sc/sc.sock sc.wsgi:application
[Install]
WantedBy=multi-user.target
The structure is as following:
sc
├── manage.py
├── sc
│ ├── asgi.py
│ ├── __init__.py
│ ├── __pycache__
│ ├── settings.py
│ ├── urls.py
│ └── wsgi.py
└── sc_site
├── admin.py
├── apps.py
├── forms.py
├── models.py
├── __pycache__
├── static
│ ├── admin
│ ├── css
│
├── templates
├── urls.py
└── views.py
I'm in the world of pain at the time. I was struggling with Apache ... I'm noob at centos 7/ linux servers management... Apparently I am stuck... If I forgot to give some extra information... Please let me know, I will happily make an update...
Also I did make sure that I set up gunicorn... So it is on the system and works...:
yum install python-gunicorn
Update
After all fight with the options for gunicorn, it is using python 2.7. I have python 3.8.5... I tried to follow this tutorial How to get Gunicorn to use Python 3 instead of Python 2 (502 Bad Gateway) , but so far I cannot figure out completely what to do... I did everything and it's still using python2.7... Interesting thing:
I tried to delete gunicorn... pip uninstall guncorn
And system tells me that I don't have gunicorn, same story with pip3...
I installed gunicorn with pip3 install gunicorn, but it still trying to use python2.7:
[[/home/scorg/pro]]# sc_project/bin/gunicorn_start
Starting scorg_app as root
DJANGO_SETTINGS_MODULE
PYTHONPATH
2020-09-14 11:15:43 [4865] [INFO] Starting gunicorn 18.0
2020-09-14 11:15:43 [4865] [DEBUG] Arbiter booted
2020-09-14 11:15:43 [4865] [INFO] Listening at: unix:/home/scorg/pro/run/gunicorn.sock (4865)
2020-09-14 11:15:43 [4865] [INFO] Using worker: sync
2020-09-14 11:15:43 [4871] [INFO] Booting worker with pid: 4871
2020-09-14 11:15:43 [4871] [ERROR] Exception in worker process:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 495,in spawn_worker
worker.init_process()
File "/usr/lib/python2.7/site-packages/gunicorn/workers/base.py", line106, in init_process
self.wsgi = self.app.wsgi()
File "/usr/lib/python2.7/site-packages/gunicorn/app/base.py", line 114, in wsgi
self.callable = self.load()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 62, in load
return self.load_wsgiapp()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 49, in load_wsgiapp
return util.import_app(self.app_uri)
File "/usr/lib/python2.7/site-packages/gunicorn/util.py", line 354, inimport_app
__import__(module)
ImportError: No module named projects.sc.sc.wsgi
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 495,in spawn_worker
worker.init_process()
File "/usr/lib/python2.7/site-packages/gunicorn/workers/base.py", line106, in init_process
self.wsgi = self.app.wsgi()
File "/usr/lib/python2.7/site-packages/gunicorn/app/base.py", line 114, in wsgi
self.callable = self.load()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 62, in load
return self.load_wsgiapp()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 49, in load_wsgiapp
return util.import_app(self.app_uri)
File "/usr/lib/python2.7/site-packages/gunicorn/util.py", line 354, inimport_app
__import__(module)
ImportError: No module named projects.scrap.scrap.wsgi
2020-09-14 11:15:43 [4871] [INFO] Worker exiting (pid: 4871)
2020-09-14 11:15:43 [4872] [INFO] Booting worker with pid: 4872
2020-09-14 11:15:43 [4872] [ERROR] Exception in worker process:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 495,in spawn_worker
worker.init_process()
File "/usr/lib/python2.7/site-packages/gunicorn/workers/base.py", line106, in init_process
self.wsgi = self.app.wsgi()
File "/usr/lib/python2.7/site-packages/gunicorn/app/base.py", line 114, in wsgi
self.callable = self.load()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 62, in load
return self.load_wsgiapp()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 49, in load_wsgiapp
return util.import_app(self.app_uri)
File "/usr/lib/python2.7/site-packages/gunicorn/util.py", line 354, inimport_app
__import__(module)
ImportError: No module named projects.sc.sc.wsgi
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 495,in spawn_worker
worker.init_process()
File "/usr/lib/python2.7/site-packages/gunicorn/workers/base.py", line106, in init_process
self.wsgi = self.app.wsgi()
File "/usr/lib/python2.7/site-packages/gunicorn/app/base.py", line 114, in wsgi
self.callable = self.load()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 62, in load
return self.load_wsgiapp()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 49, in load_wsgiapp
return util.import_app(self.app_uri)
File "/usr/lib/python2.7/site-packages/gunicorn/util.py", line 354, inimport_app
__import__(module)
ImportError: No module named projects.sc.sc.wsgi
2020-09-14 11:15:43 [4872] [INFO] Worker exiting (pid: 4872)
2020-09-14 11:15:43 [4873] [INFO] Booting worker with pid: 4873
2020-09-14 11:15:43 [4873] [ERROR] Exception in worker process:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 495,in spawn_worker
worker.init_process()
File "/usr/lib/python2.7/site-packages/gunicorn/workers/base.py", line106, in init_process
self.wsgi = self.app.wsgi()
File "/usr/lib/python2.7/site-packages/gunicorn/app/base.py", line 114, in wsgi
self.callable = self.load()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 62, in load
return self.load_wsgiapp()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 49, in load_wsgiapp
return util.import_app(self.app_uri)
File "/usr/lib/python2.7/site-packages/gunicorn/util.py", line 354, inimport_app
__import__(module)
ImportError: No module named projects.scrap.scrap.wsgi
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 495,in spawn_worker
worker.init_process()
File "/usr/lib/python2.7/site-packages/gunicorn/workers/base.py", line106, in init_process
self.wsgi = self.app.wsgi()
File "/usr/lib/python2.7/site-packages/gunicorn/app/base.py", line 114, in wsgi
self.callable = self.load()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 62, in load
return self.load_wsgiapp()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 49, in load_wsgiapp
return util.import_app(self.app_uri)
File "/usr/lib/python2.7/site-packages/gunicorn/util.py", line 354, inimport_app
__import__(module)
ImportError: No module named projects.sc.sc.wsgi
2020-09-14 11:15:43 [4873] [INFO] Worker exiting (pid: 4873)
Traceback (most recent call last):
File "/bin/gunicorn", line 9, in <module>
load_entry_point('gunicorn==18.0', 'console_scripts', 'gunicorn')()
File "/usr/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 71, in run
WSGIApplication("%(prog)s [OPTIONS] [APP_MODULE]").run()
File "/usr/lib/python2.7/site-packages/gunicorn/app/base.py", line 143, in run
Arbiter(self).run()
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 203,in run
self.halt(reason=inst.reason, exit_status=inst.exit_status)
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 298,in halt
self.stop()
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 341,in stop
self.reap_workers()
File "/usr/lib/python2.7/site-packages/gunicorn/arbiter.py", line 452,in reap_workers
raise HaltServer(reason, self.WORKER_BOOT_ERROR)
gunicorn.errors.HaltServer: <HaltServer 'Worker failed to boot.' 3>
But when I try uninstall gunicorn, it tried to uninstall gunicorn for python3.8... While I'm trying to run gunicorn it runs for python2.7... Unbelievable...
[ [/home/scorg/pro]]# pip uninstall gunicorn
Found existing installation: gunicorn 20.0.4
Uninstalling gunicorn-20.0.4:
Would remove:
/usr/local/bin/gunicorn
/usr/local/lib/python3.8/site-packages/gunicorn-20.0.4.dist-info/*
/usr/local/lib/python3.8/site-packages/gunicorn/*
Proceed (y/n)? y
Successfully uninstalled gunicorn-20.0.4

Answer 1

If you have virtualenv follow this steps:
create guncorn.conf config file
ex: touch /opt/yourproject/gunicorn.conf
import multiprocessing
workers = multiprocessing.cpu_count()*2+1
bind='unix:/var/run/gunicorn.sock'
logfile="/var/log/guni.log"
errorlog = '-'
loglevel = 'info'
accesslog = '-'
timeout=120
proc_name = "yourproject"
user="root"
group="root"
create "gunicorn_start" file.
ex: touch /opt/yourproject/gunicorn_start
#!/bin/bash
NAME="yourproject"
DJANGODIR= **** #ex: /home/yourproject/ #change this
ENVBIN=/yourvirtualenvdir/bin/
SOCKFILE=/var/run/gunicorn.sock
USER=root
GROUP=root
NUM_WORKERS=5 #change this
DJANGO_SETTINGS_MODULE= **** #ex: yourproject.settigns.main #change this
DJANGO_WSGI_MODULE=****.wsgi #ex: yourproject.wsgi #change this
TIMEOUT=120
echo "Starting $NAME as `whoami`"
## Activate the virtual environment
cd $DJANGODIR
source $ENVBIN/activate
cd $DJANGODIR
export DJANGO_SETTINGS_MODULE=$DJANGO_SETTINGS_MODULE
export PYTHONPATH=$DJANGODIR:$PYTHONPATH
## Create the run directory if it doesn't exist
RUNDIR=$(dirname $SOCKFILE)
test -d $RUNDIR || mkdir -p $RUNDIR
## Start your Django Unicorn
## Programs meant to be run under supervisor should not daemonize themselves (do not use --daemon)
exec $ENVBIN/gunicorn ${DJANGO_WSGI_MODULE}:application -c=/opt/yourproject/gunicorn.conf
create service
[Unit]
Description=My Python Service
[Service]
User=root
Restart=always
Type=simple
WorkingDirectory=/opt/yourproject/
ExecStart=/usr/bin/sh gunicorn_start
[Install] WantedBy=multi-user.target

Answer 2

Have you tried to add "--chdir " in ExecStart?
like
ExecStart=/home/scorg/pro/sc_project/bin/gunicorn --chdir /home/scorg/pro/projects/sc/sc --workers 3 --bind unix:/home/scorg/pro/projects/sc/sc.sock sc.wsgi:application