Scenario: "Melbourne": WSGI with Gunicorn

Level: Medium

Type: Fix

Tags: gunicorn   nginx   pro   python   systemd  

Access: Paid

Description: There is a Python WSGI web application at /home/admin/wsgi.py that should serve the string Hello, world!. It is run by Gunicorn, fronted by nginx (both under systemd). Request flow: client (curl) → nginx (:80) → Gunicorn (Unix domain socket) → wsgi.py.

Gunicorn is already configured to listen on the Unix socket file /run/gunicorn/gunicorn.sock (see /etc/systemd/system/gunicorn.service). Nginx must proxy to that same filesystem path.

Make curl to localhost on port 80 return Hello, world! using this nginx → Gunicorn → WSGI setup.

Root (sudo) Access: True

Test: curl -s http://localhost returns Hello, world! (served via Gunicorn and nginx; both services must be running).

The "Check My Solution" button runs the script /home/admin/agent/check.sh, which you can see and execute.

Time to Solve: 40 minutes.