add k8s tutos in devops guides

docs/divers/devops/index.md

@@ -7,3 +7,4 @@
 - [Utiliser l'API de Gitlab / Github avec Bash](git-api.md)
 - [Développer des modules pour Odoo](odoo/index.md)
 - [Déployer son site web / hugo via le garage CICD](cicd.md)
+- [Utiliser Kubernetes](k8s/index.md)

docs/divers/devops/k8s/index.md

@@ -0,0 +1,8 @@
+# Guide Kubernetes
+
+<img src="https://raw.githubusercontent.com/kubernetes/kubernetes/refs/heads/master/logo/logo.svg" style="width: 300px; text-align: center;">
+
+- [Installation d'un cluster [K3S]() sur sa machine](installation.md)
+- [Installation d'un cluster sur des raspberry pi](raspberry.md)
+- [Monitorer son cluster avec [OpenLens]()](monitoring.md)
+

docs/divers/devops/k8s/installation.md

@@ -0,0 +1,29 @@
+# Installer k3s sur sa machine locale
+
+<a href="https://k3s.io"><img src="https://k3s.io/img/k3s-logo-light.svg" style="width: 300px; text-align: center;"></a>
+
+## Installation 
+
+```bash
+curl -sfL https://get.k3s.io | sh -
+```
+
+## Utilisation
+
+- Installer `kubectl`
+```bash
+curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+```
+
+- Récupérer la config du cluster pour kubeclt
+```bash
+mv ~/.kube/config ~/.kube/config.BAK
+cat /etc/rancher/k3s/k3s.yaml > ~/.kube/config
+```
+
+## Principales commandes
+
+```bash
+kubectl get all -n default
+```
+

docs/divers/devops/k8s/monitoring.md

@@ -0,0 +1,54 @@
+# K8S monitoring avec Prometheus et Openlens
+
+## Installer Openlens (sur sa machine locale)
+
+```bash
+wget https://github.com/MuhammedKalkan/OpenLens/releases/download/v6.5.2-366/OpenLens-6.5.2-366.amd64.deb \
+&& sudo apt install OpenLens*.deb
+```
+
+## Configurer le cluster pour etre accessible
+
+- Editer le fichier `/etc/rancher/k3s/config.yaml`
+```yml
+tls-san:
+  - 78.192.247.57
+write-kubeconfig-mode: "0644" 
+```
+
+- Exporter et modifier la config
+```bash
+sudo cat /etc/rancher/k3s/k3s.yaml > kubeconfig.yml # fichier kubeconfig.yml à récupérer sur sa machine local
+nano kubeconfig.yml
+```
+
+> Mettre l'IP publique du seveur: 
+```yml
+server: https://<IP_PUBLIQUE>:6443
+```
+## Installation du monitoring
+
+- Installer `helm`
+```bash
+curl -fsSL https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash
+```
+
+- Installer `metrics-server`
+```bash 
+kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
+```
+
+- Deployer 
+```bash
+helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
+helm repo update
+
+helm install prometheus prometheus-community/kube-prometheus-stack \
+  --namespace monitoring --create-namespace
+```
+
+- Visualiser dans `openlens` dans l'onglet configuration du cluster
+```bash
+# <namespace>/<service>:<port>
+monitoring/prometheus-kube-prometheus-prometheus:9090
+```

docs/divers/devops/k8s/raspberry.md

@@ -0,0 +1,5 @@
+# Installer k3s sur des raspberry pi
+
+<a href="https://git.legaragenumerique.fr/GARAGENUM/ansible-garage-kluster"><img src="https://duckduckgo.com/i/2826276fb92cb010.png" style="width: 300px; text-align: center;"></a>
+
+[regarder ici](https://git.legaragenumerique.fr/GARAGENUM/ansible-garage-kluster)

mkdocs.yml

@@ -159,6 +159,7 @@ nav:
                 - divers/devops/odoo/devenv.md
                 - divers/devops/odoo/devmodule.md
             - "CICD du garage": divers/devops/cicd.md
+            - "Kubernetes": divers/devops/k8s/index.md
         - "Les guides Internes":
             - "Imprimantes": divers/internal/install-printers.md
             - "Workadventure map": divers/internal/wa.md