Charles Bernardin
Cloud Native Engineer.
I design and operate Kubernetes & OpenShift platforms in production. Kubernetes, OpenShift, HashiCorp Vault, Terraform, GitOps.
Three domains, one mission: reliability.
Architecture, automation and security for Cloud Native platforms — from initial audit to 24/7 operations.
Kubernetes & OpenShift
HA cluster architecture, OCP 3→4 migrations, security hardening, multi-tenancy. Bare metal, VMware, cloud — production-grade.
Infrastructure as Code
Terraform Associate certified. Reusable modules, GitOps with ArgoCD, Jenkins / Tekton pipelines. −60 % deployment time, −80 % manual errors.
Secrets Management
HashiCorp Vault & OpenBao high-availability on Kubernetes. Internal PKI, automatic certificate rotation, native integration via Vault Agent & CSI Driver.
Key numbers
Latest posts
All posts →Learn Kubernetes & Vault in French
Most Cloud Native certification prep tools are English-only. I build three free platforms to fill that gap — gamified, multilingual and open to the entire community.
KubeDex
kubedex-app.vercel.app
Gamified platform to learn Docker & Kubernetes step by step — 5 worlds, 40+ lessons, built-in CLI/YAML editor, badges & XP.
VaultQuest
vaultquest-five.vercel.app
Learn HashiCorp Vault and prep for the Vault Associate (003) certification — theory, hands-on labs and mock exams aligned with the official curriculum.
CKA-Quest
cka-quest-app.vercel.app
Prepare the Certified Kubernetes Administrator (CKA) in French, English and several other languages — mock questions, practice environments, detailed scoring.