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rahmankhanjohn/README.md

Rahman Khan

Building cloud infrastructure for the agentic era.

Products & Solutions at Pico Public Cloud, Dhaka. 24 years of infrastructure experience across enterprise systems, cloud platforms, and network operations.

What I work on

  • Cloud platform products: what enterprises actually ask for versus what vendors sell
  • Cost and operations: Kubernetes economics, multi-tenant attribution, FinOps
  • Security depth: zero trust, application protection, detection engineering

Open source

  • Contributing to CNCF projects (OpenCost, FinOps and cloud-native tooling)
  • failover-budget — measuring real DNS and GSLB recovery time (bdNOG22 talk)

Open source tools

Tool What it does Tests Language
failover-budget Measures real DNS/GSLB failover time 34 Python
portability-lint Finds what breaks if you move clouds 5 Python
openstack-lab Free OpenStack learning path, in scripts 7 Python
cost-tag-validator Checks tagging taxonomy before finance asks 9 Python
soc-evals Scores managed SOC proposals 11 Python
ocost-splitter Splits shared K8s cost across namespaces 11 Go
gitops-check Validates GitOps repo structure and secret externalization 10 Python
event-schema-lint Validates event schemas for versioning and idempotency 9 Python
boundary-check Analyzes service deps for co-deploy pairs and circular deps 8 Python
airgap-ai-stack Packs, verifies, deploys, and attests AI models in air-gapped enclaves 17 Go

All tools: MIT license, zero dependencies. Each prints a paste-ready report line for your next review.

Recognition

Indexed on the XERJ Corpus Hub - the open reference memory AI coding agents search before they write code.

Writing

I publish technical articles on cloud infrastructure thrice a week on LinkedIn. Everything here comes from production work, not vendor decks.

Research

Applied data exploration and network modeling from my FAO years. Google Scholar — 62 citations, avian influenza surveillance networks.

📍 Dhaka, Bangladesh

Who is this for?

No telemetry in these tools. If you use one, plan to, or rejected it, tell us your environment in the discussion thread. Operator replies steer the roadmap.

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  1. airgap-ai-stack airgap-ai-stack Public

    Pack, verify, deploy, and attest open-weight AI models inside enclaves with no internet egress. Go, zero dependencies.

    Go

  2. failover-budget failover-budget Public

    Measure what DNS and GSLB failover actually costs, in the only unit that matters: what your users experience.

    Python 1

  3. gitops-check gitops-check Public

    Validate GitOps repository structure: controller, secrets, config separation.

    Python

  4. ocost-splitter ocost-splitter Public

    Split the unattributed cost of a shared Kubernetes cluster across the namespaces that share it.

    Go

  5. soc-evals soc-evals Public

    Score a managed SOC proposal against the five questions that decide whether it works.

    Python