2012-04-18
Capacity Is Not Performance
A storage-era lesson that still applies to Kubernetes, cloud platforms, and modern infrastructure design.
StoragePerformanceArchitecture
Infrastructure · Automation · Field Notes
Real-world engineering lessons from the messy middle of production.
Sanitized notes on Kubernetes, GPU infrastructure, distributed systems, automation, storage performance, and platform operations.
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2026-05-24
Modern Cloud Architecture: A Game of Tradeoffs
How Kubernetes, cloud economics, disaster recovery, data sovereignty, and managed platforms turn modern infrastructure into a business strategy conversation.
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2025-08-23
Operational Notes on Airflow, Spark, and Alerting on Kubernetes
Practical lessons from running workflow orchestration and distributed compute in Kubernetes.
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2025-01-14
Using a Kubernetes Admission Webhook to Block Workloads When Capacity Is Not Available
A generalized design pattern for validating workload capacity before admitting tenant workloads into a Kubernetes cluster.
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2024-06-19
cert-manager, Webhooks, and CA Bundles: The Stuff That Always Bites You
A practical explanation of why Kubernetes webhooks fail when certificates, service DNS names, or CA bundles are wrong.
Kubernetescert-managerTLS