Flask + uWSGI + nginx + Redis

You
216.73.216.38

Traefik
TLS termination

nginx
HTTP

uWSGI
uwsgi protocol

Flask
Python app

Redis
Data store

Hit Counter

Stored in Redis, persists across requests

Request Info

URL	`https://flask-example.computemachines.com/`
Host	`flask-example.computemachines.com`
Scheme	`https`
Remote Address	`172.18.0.2`

Proxy Headers

X-Forwarded-For	`216.73.216.38`
X-Forwarded-Proto	`https`
X-Forwarded-Host	`flask-example.computemachines.com`

These headers are set by Traefik and passed through nginx via uwsgi_param. Flask's ProxyFix middleware uses them to determine the real client IP and protocol.

API Endpoints

GET /health	Health check (JSON)
GET /stats	Redis stats (JSON)
POST /echo	Store message in Redis (JSON)