I'm new at this and have only been using nginx to serve static files. I have now installed flask and gunicorn. If I run gunicorn -b 127.0.0.2:8000 hello:app
and then wget it from the server it works well. If I try to access it from a browser, however, it returns a 404 error (I am running this on a server that hosts a wordpress site which is locatet at root).
The flask app:
from flask import Flask
from werkzeug.contrib.fixers import ProxyFix
app = Flask(__name__)
@app.route('/')
def hello():
return "Hello world!"
app.wsgi_app = ProxyFix(app.wsgi_app)
if __name__ == '__main__':
app.run()
And the relevant part of my nginx configuration:
location /flask {
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_\
for;
proxy_pass http://127.0.0.2:8000;
proxy_redirect off;
}
I hope this is all the relevant info. If not, do tell. Thanks!
This is how I serve my flask apps in Nginx:
Run gunicorn daemonized using a socket:
sudo gunicorn app:app --bind unix:/tmp/gunicorn_flask.sock -w 4 -D
Related nginx config:
upstream flask_server {
# swap the commented lines below to switch between socket and port
server unix:/tmp/gunicorn_flask.sock fail_timeout=0;
#server 127.0.0.1:5000 fail_timeout=0;
}
server {
listen 80;
server_name www.example.com;
return 301 $scheme://example.com$request_uri;
}
server {
listen 80;
client_max_body_size 4G;
server_name example.com;
keepalive_timeout 5;
# path for static files
location /static {
alias /path/to/static;
autoindex on;
expires max;
}
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
if (!-f $request_filename) {
proxy_pass http://flask_server;
break;
}
}
}
}