Knowledge base for software setup, errors, and daily tool work.

Docker Compose Env Variable Not Available in Container: Fix

You define an environment variable in your docker-compose.yml file, but when you run...

Docker Compose Environment Variable Not Updating? Fix It

Docker Disk Space Full: How to Free Up Space for Images

If you work with Docker regularly, you've likely seen the dreaded "no space left on devic...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...