Flask Deployment Playbook
Production-ready guides for deploying and scaling Flask applications on Ubuntu with Nginx and Gunicorn.
This site is organized as a practical Flask production playbook. Start with deployment, move to HTTPS and file serving, then use the fix guides when something breaks under real traffic.
If you are starting from scratch, the safest order is: deploy Flask behind Gunicorn, put Nginx in front, add HTTPS, verify static and media file serving, then add safer deployment workflows.
Deploy
Step-by-step guides for baseline production setup using Nginx, Gunicorn, and Docker.
Fix Issues
Troubleshoot common production errors like 502 Bad Gateway and permission issues.
Optimize
Scale your application with zero-downtime reloads and performance tuning.
Reference
Deep dives into Nginx proxying, Gunicorn architecture, and folder structures.
Checklist
Ensure your app is secure and reliable before going live.
Start Here
If your app is not deployed yet, start with the Nginx + Gunicorn guide. It is the baseline that the rest of the site assumes.
Fix Fast
If production is already live and failing, go straight to the issue guides and identify whether the break is in Nginx, Gunicorn, permissions, or file serving.
Harden Next
After the stack is stable, add HTTPS, verify the production checklist, and implement zero-downtime reloads for safer releases.