Tag: devops

Cloudflare Workers: Edge Without the PhD

Cloudflare Workers run your JS at the edge, no servers, no cold starts, 100k free req/day. Here's what they're actually good for.

Caddyfile Patterns That Actually Work

A practical cookbook of real-world Caddyfile patterns, reverse proxy, auth, redirects, SPA serving, rate limiting, and more.

Prometheus Scrape Intervals: The Hidden Tradeoff

Shorter intervals = more data. But also more storage, CPU load, and potential instability. Here's the tradeoff you're actually making.

Semantic Versioning: The Part Everyone Gets Wrong

You think v1.1.0 is backward compatible. Your users think breaking changes are v2.0.0. Both of you are wrong about something.

Let's Encrypt Without Certbot

Certbot isn't the only ACME client. Explore Caddy, acme.sh, lego, and Step CA, with practical examples for wildcard certs and DNS-01 challenges.

HAProxy: Load Balancing Done Right

HAProxy is the battle-tested load balancer powering GitHub, Reddit, and Instagram. Here's how to actually use it without reading 500 config options.

Cloudflare WAF: Free Tier Firewall Rules

Cloudflare's free tier WAF is more powerful than most people use. Here's how to actually configure it: rules, rate limits, and all.

Distroless: How to Build Slim, Secure Containers

Distroless images contain only your app and its runtime, no shell, no package manager, no attack surface. Here's how to build them.

.gitignore Entries Every Project Actually Needs

Stop leaking secrets, dependencies, and OS garbage into git. Here are the .gitignore patterns that save you from disaster.

Multi-Stage Docker Builds: Stop Shipping Your node_modules to Production

Learn multi-stage Docker builds to slash image sizes by 90%. Practical before/after examples for Node.js, Python, and Go with real size comparisons.

Cloudflare DNS: Beyond Pointing Records

Stop using your registrar's janky DNS panel. Here's how Cloudflare DNS actually works, proxying, DNSSEC, dynamic DNS, and email records that don't break.

make for Project Automation (It's Not Just for C Code)

Forget bash scripts scattered across your repo. make is a simple task runner that's been around for 50 years and works everywhere.