Technical portfolio

Projects

Technical, open-source and applied-research projects. Each entry describes a problem, an approach, technologies and a verifiable status — no success story or invented metrics.

Technical projects

Production

External Metrics Exporter

Problem addressed :Teams deploy on Kubernetes without reliable visibility on external dependencies or comparable signals across vendors.

Approach : Expose actionable signals without imposing a new data model

  • Prometheus
  • Kubernetes
  • Exporters
View project →

Open source

Curated public repositories, grouped by intent, not an exhaustive GitHub listing. Strategic descriptions live on this site; metadata may be enriched at build time.

Kubernetes & platform

Cloud-native proof: operators, observability and platform labs.

External Metrics Exporter

Problem addressed
Teams deploy on Kubernetes without reliable visibility on external dependencies or comparable signals across vendors.
Status
Active : public repository
Main language
Go
License
NOASSERTION
Etienne’s role
Author and maintainer
Documentation
Documentation on the project page and repository README. →
Contribution sought
Usage feedback on discovered external dependencies and the Prometheus contract.
Last update
21 Jul 2026

Azure DevOps Kubernetes Operator

Problem addressed
Run Azure DevOps agents on Kubernetes without manually operating pod lifecycle.
Status
Active
Main language
Go
License
MIT
Etienne’s role
Author and maintainer
Documentation
README and operator chart in the repository.
Contribution sought
Issues on agent modes, scaling and cluster integration.
Last update
23 Jul 2026

AKS Lifecycle

Problem addressed
Manage AKS lifecycle (create, upgrade, drift) without ad hoc scripts per cluster.
Status
Maintenance
Main language
Go
License
GPL-3.0
Etienne’s role
Author
Documentation
Repository README.
Contribution sought
Usage feedback on upgrade and drift scenarios.
Last update
11 Sept 2024

Kubernetes on Hyper-V

Problem addressed
Stand up a reproducible Kubernetes cluster on Hyper-V without an opaque stack.
Status
Maintenance : lab / reference
Main language
PowerShell
License
MIT
Etienne’s role
Author
Documentation
README (Packer, Ansible, DSC, WSL).
Contribution sought
Issues on Hyper-V / WSL paths and K8s versions.
Last update
7 Jun 2019

FinOps & cloud cost

Cloud cost control and price readability.

cloudcost

Problem addressed
Check cloud prices (Azure) on the fly without opaque portals.
Status
Active
Main language
Go
License
Apache-2.0
Etienne’s role
Author and maintainer
Documentation
Go CLI : repository README.
Contribution sought
Coverage for new services and output formats.
Last update
19 Nov 2023

DevSecOps & supply chain

Security, CI/CD and software supply-chain tooling.

ShaiHulud Azure DevOps Scanner

Problem addressed
Detect supply-chain / compromise indicators in Azure DevOps pipelines.
Status
Active
Main language
Python
License
MIT
Etienne’s role
Author
Documentation
Scanner README.
Contribution sought
Detection rules and field feedback.
Last update
23 Sept 2025

chart-version

Problem addressed
Force a Helm chart version in CI/CD without hand-editing Chart.yaml.
Status
Maintenance
Main language
Shell
License
Apache-2.0
Etienne’s role
Author
Documentation
CLI + Helm plugin : README.
Contribution sought
CI use cases and Helm compatibility.
Last update
19 Nov 2023

Developer tooling

Adjacent tools : useful, but outside the core platform pitch.

compose (Apple container)

Problem addressed
Orchestrate a docker-compose.yml with apple/container on macOS without Docker Desktop.
Status
Active
Main language
Swift
License
NOASSERTION
Etienne’s role
Author and maintainer
Documentation
README + related Homebrew tap (Simplifi-ED/homebrew-compose). →
Contribution sought
Compose compatibility and apple/container feedback.
Last update
26 Jul 2026

go-amumu

Problem addressed
Send email via Microsoft Graph from a simple, scriptable Go CLI.
Status
Maintenance
Main language
Go
License
Apache-2.0
Etienne’s role
Author
Documentation
CLI README.
Contribution sought
Graph auth and message formats.
Last update
11 Jun 2024

LinkedIn Carousel Generator

Problem addressed
Produce LinkedIn carousels reproducibly from Markdown.
Status
Maintenance
Main language
TeX
License
CC0-1.0
Etienne’s role
Author
Documentation
README and related field note. →
Contribution sought
Templates and generation pipeline.
Last update
7 Oct 2024

Historical references

History and build proof, not active products.

OS Factory

Problem addressed
Standardize OS image building for public and private cloud without ad hoc pipelines.
Status
Historical reference
Main language
Python
License
Apache-2.0
Etienne’s role
Primary contributor (Cellenza → Société Générale mission)
Documentation
README and related blog articles.
Contribution sought
Not active : kept as build proof.
Last update
29 Apr 2021

Azure NetApp Files : RBAC roles

Problem addressed
Provision Azure NetApp Files with suitable RBAC roles without reinventing policies.
Status
Historical reference
Main language
HCL
License
MIT
Etienne’s role
Author
Documentation
Terraform templates and related technical article. →
Contribution sought
Not active : kept with the ANF RBAC article.
Last update
15 Dec 2023