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Codelooru takes one thing at a time and takes it apart.
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One concept, taken apart properly.
- Explained: NATStart here
- Explained: CoreDNSKubernetes
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Complete systems, end to end.
- Architecture: KubernetesFull guide
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- Architecture: MainframeSeries
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Recent posts
October 16, 2026
Applied AI: MCP
Information in this post reflects publicly available sources as of October 16, 2026. You built an agent that can search your logs. It has one tool, query_logs , wired straight into your harness, and it works. Then the requests start. The platform team wants the same tool inside their IDE assistant. Support wants it in the company chat app. And your own agent now needs to read GitHub, file Jira tickets, and query Postgres. Each of those apps has its … Read More
by Phee Jay
October 16, 2026
Applied AI: AI Agents
Information in this post reflects publicly available sources as of October 16, 2026. It's 9:40 on a Tuesday and checkout errors have tripled since midnight. You paste the question into a chat assistant: why are checkout requests failing? You get back a tidy, confident list. Database connection limits. A bad deploy. An expired certificate. Rate limiting from an upstream provider. All plausible, and none of them checked. Now you ask the same que… Read More
by Phee Jay
September 29, 2026
Under the Hood: Kubernetes QoS Classes
It is 3 a.m. and a node in your production cluster runs low on memory. When the dust settles, your payment service has been killed and restarted twice. The nightly batch job on the same node, the one nobody would miss for an hour, sailed through untouched. Nothing in the dashboards says why, and nobody made that choice on purpose. Except somebody did. Months earlier, someone wrote requests and limits into two manifests. The batch job got requests… Read More
by Phee Jay