Software comparisons, alternatives, and tool decision notes.

Fix Nginx 502 Bad Gateway with Docker Socket

You have an Nginx container proxying requests to another container via the Docker socket, and you...

Docker Compose Secret vs Environment Variable: When to Use Each

If you're writing a docker-compose.yml and wondering whether to put a value in <...

Docker Compose ENV Not Passed to Entrypoint: Fix

You define an environment variable in your docker-compose.yml, but when the containe...

Checklist for Troubleshooting Nginx Permission Denied Errors

Understanding the Problem

When Nginx returns a 403 Forbidden or logs an error like ...