Cloud & DevOps
Cloud infrastructure, containerization, CI/CD pipelines, and DevOps engineering practices.
5 Articles
eBPF Spinlocks and the Art of Kernel Debugging
A spinlock bug in eBPF doesn't announce itself with a stack trace or an error message. It announces itself with a machine that stops responding. No logs, no...
DNS Configuration Is Still Breaking Production
Apple's latest macOS release broke custom DNS settings for thousands of developers. Specifically, it started intercepting queries for the .internal TLD — which...
Defensive Engineering: Systems That Resist Catastrophe
A junior engineer at a mid-sized fintech company ran a database migration script on a Friday afternoon. The script was supposed to clean up orphaned records in...
Sub-Millisecond VM Sandboxes via Copy-on-Write
Starting a Docker container takes about 500 milliseconds. A Firecracker microVM takes about 125 milliseconds. A V8 isolate takes about 5 milliseconds. But a...
FreeBSD: The Underappreciated Server OS
When Netflix serves you a movie, the video data is likely coming from a FreeBSD server. When you send a WhatsApp message, it's routed through infrastructure...