Kubenatives | Sharon Sahadevan | Substack

Production Runbook: GPU Pod Stuck in Pending

Debug runbook for GPU pods stuck in Pending on Kubernetes. GPU Operator failures, scheduling filters, MIG config, capacity planning, and prevention…

Mar 7 • Sharon Sahadevan

How Kubernetes Schedules GPUs: Device Plugins, MIG, and Time-Slicing

Kubernetes treats a $30K A100 like a CPU core as a simple integer. Here’s what actually happens when you request nvidia.com/gpu: 1 — and how to stop…

Mar 6 • Sharon Sahadevan

What Actually Happens Inside the Kubernetes Control Plane

What every production engineer should understand about the API server, etcd, scheduler, and controller manager, and why it matters when things break at…

Feb 27 • Sharon Sahadevan

GPU Infrastructure Explained

Everything You Need to Know as a DevOps Engineer Moving into AI

Feb 12 • Sharon Sahadevan

The Universal Adapter for AI Tools

Jan 9 • Sharon Sahadevan

Most Popular

How I Solved a $50K Certificate Outage in 15 Minutes Using OSI Layers

Jul 22, 2025 • Sharon Sahadevan

The OSI Model: Not Academic BS - Here's Why It Matters in Production

Jul 17, 2025 • Sharon Sahadevan

DevOps to MLOps

Dec 16, 2025 • Sharon Sahadevan

SSL/TLS in Kubernetes: The Complete Mental Model

Jul 16, 2025 • Sharon Sahadevan

Kubenatives

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