Your Docker Image Is 1.2 GB. Here's How to Get It Under 100 MB
Slim bases, multi-stage builds, a .dockerignore and a few layer habits, plus a small tested checker that spots what's bloating your Dockerfile.
#devops
Posts tagged #devops
Why Your Cron Job Fires at the Wrong Time: IST, UTC and the Midnight Day Shift
Your 9 PM IST job ran at 2:30 AM? A practical guide to cron, UTC servers and the day-shift bug, with a tested Python helper.
Building a /deploy Slack Bot in Python (and the Gotchas the Docs Skip)
Build a Python Slack bot for deploy approvals, covering slash commands, interactive buttons, concurrency, and production-ready safeguards.
Zero-Downtime Database Migrations Without Breaking Production
How to change a live PostgreSQL schema without freezing tables or breaking running code: the expand and contract pattern, safer versions of risky ALTERs, and tested code.
How to Create Your Own Private VPN Using a Low-Cost VPS
Build a private WireGuard VPN on an affordable VPS and securely route your laptop and mobile traffic through a server you control.
Observability on a Budget: Logs, Metrics, and Traces with Open-Source Tools
Build a lean observability stack with Prometheus, Grafana, Loki, Tempo, and OpenTelemetry while controlling data volume and self-hosting costs.
