I currently have a Djago app running on my main site when I visit mysite.com. However, I'd like mysite.com/flaskapp to run a separate Flask application. I'm able to set up two nginx site-enabled config files and run each app on a different port but, for various reasons, I'd like to run them all on the same port (if possible). When I configure my flaskapp/ location in my nginx server file I get a 404 error.

Here's my supervisor config file:

command=/var/www/html/MYSITE/prodenv/bin/gunicorn --workers 3 --bind unix:/var/www/html/MYSITE/public_html/MYSITE.sock MYSITE.wsgi

command=/var/www/html/MYSITE/public_html/FLASKAPP/venv/bin/gunicorn --workers 3 --bind unix:/var/www/html/MYSITE/public_html/FLASKAPP/api/FLASKAPP.sock FLASKAPP:app

And my nginx site-enabled file:

server {
    listen 80;
    listen [::]:80;

    server_name MYSITE;

    location = /favicon.ico { access_log off; log_not_found off; }

    location /static/ {
            root /var/www/html/MYSITE/public_html;
        expires 30d;

    location / {
            include proxy_params;
            proxy_pass http://unix:/var/www/html/MYSITE/public_html/MYSITE.sock;

    location /FLASKAPP/ {
        include proxy_params;
        proxy_pass http://unix:/var/www/html/MYSITE/public_html/FLASKAPP/api/FLASKAPP.sock; 


Any ideas? Thanks!

  • Check the ownership of the socket files, they need to be owned by your nginx user. – Simon Greenwood Dec 14 '17 at 7:07
  • @SimonGreenwood I don't think that's the problem because if I split FLASKAPP into it's own nginx config, just with a different port, it works. – pnus Dec 14 '17 at 7:09

There is typo in proxy_path. You have proxy_pass http://unix:/var/www/html/MYSITE/public_html/FLASKAPP/api/FLASKAPP.sock;, but there should be fastcgi_pass unix:/var/www/html/MYSITE/public_html/FLASKAPP/api/FLASKAPP.sock;. Remove http://, change proxy_pass to fastcgi_pass and everything should work.

  • Unfortunately, this didn't work. Removing the http:// wouldn't even allow me to restart my nginx service. I received a "Failed to start A high performance web server and a reverse proxy server." error in the log. – pnus Dec 14 '17 at 14:21
  • @pnus sorry, there should be fastcgi_pass instead of proxy_pass. – Alexander Tolkachev Dec 14 '17 at 14:24
  • Well, I'm not getting a 404 error like I was before but now it's just spinning it's wheels until it eventually gets a 502 error :-/ – pnus Dec 15 '17 at 4:00

I figured it out. I rewrote the url to remove the subdirectory and now it all works:

      rewrite ^/FLASKAPP(.*)$ $1 break;

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