Phase 7 - Kubernetes sur OpenStack¶

Objectif¶

Déployer des clusters Kubernetes via deux approches : Magnum (natif OpenStack) et VMs + K3s/RKE2 (via Terraform).

Architecture C4 - Kubernetes Deployment¶

graph TB
    dev["👤 Developer<br/>Deploy apps"]
    ops["👤 Platform Team<br/>Manage clusters"]

    subgraph OpenStack["OpenStack"]
        nova["Nova<br/>Compute"]
        neutron["Neutron<br/>Network"]
        cinder["Cinder<br/>Storage"]
        octavia["Octavia<br/>LB"]
        magnum["Magnum<br/>K8s as a Service"]
    end

    subgraph Magnum_Cluster["Magnum Cluster"]
        master_m["Master<br/>Control plane"]
        worker_m["Workers<br/>Workloads"]
    end

    subgraph K3s_Cluster["K3s/RKE2 Cluster"]
        master_r["Master<br/>Control plane"]
        worker_r["Workers<br/>Workloads"]
    end

    terraform["🏗️ Terraform<br/>IaC"]

    ops -->|Create cluster| magnum
    magnum -->|Provision VMs| nova
    magnum --> Magnum_Cluster

    ops -->|terraform apply| terraform
    terraform -->|Create VMs| nova
    terraform -->|Install K3s/RKE2| K3s_Cluster

    dev -->|kubectl| Magnum_Cluster
    dev -->|kubectl| K3s_Cluster

    Magnum_Cluster -->|CSI| cinder
    K3s_Cluster -->|CSI| cinder

Sujets de cette phase¶

Comparaison des approches¶

Checkpoint de validation¶

• Magnum installé et configuré
• Cluster K8s via Magnum fonctionnel
• Cluster K3s/RKE2 déployé
• CSI Cinder opérationnel
• PVC provisionné dynamiquement