install1

kubernetes_installation

+# Installation et Configuration d'un Cluster Kubernetes sous Debian 12
+
+## 1. Prérequis
+
+- **OS** : Debian 12
+- **Réseau** : 192.168.10.0/24
+- **Infrastructure** : 3 VMs (1 Master, 2 Workers)
+
+| Nom      | Rôle    | Adresse IP       |
+|----------|--------|-----------------|
+| kube01   | Master | 192.168.10.10    |
+| worker1  | Worker | 192.168.10.11    |
+| worker2  | Worker | 192.168.10.12    |
+
+- Configuration de **/etc/hosts** sur chaque machine :
+
+    ```bash
+    127.0.0.1       localhost
+    127.0.1.1       kube01
+    192.168.10.11   worker1
+    192.168.10.10   kube01
+    192.168.10.12   worker2
+    ```
+
+## 2. Installation de Docker
+
+Sur **chaque machine**, exécutez :
+
+```bash
+curl https://get.docker.com | bash
+```
+
+## 3. Désactivation du Swap
+
+```bash
+swapoff -a
+sed -i '/ swap / s/^/#/' /etc/fstab
+```
+
+Vérification :
+
+```bash
+free -h
+```
+
+## 4. Configuration Système pour Kubernetes
+
+Sur **toutes les machines**, exécutez :
+
+```bash
+cat <<EOF | sudo tee /etc/modules-load.d/containerd.conf 
+overlay
+br_netfilter
+EOF
+
+modprobe overlay 
+modprobe br_netfilter
+
+cat <<EOF | tee /etc/sysctl.d/99-kubernetes-k8s.conf
+net.bridge.bridge-nf-call-iptables = 1
+net.ipv4.ip_forward = 1 
+net.bridge.bridge-nf-call-ip6tables = 1 
+EOF
+
+sysctl --system
+```
+
+## 5. Installation de Containerd
+
+```bash
+apt -y install containerd
+containerd config default | tee /etc/containerd/config.toml >/dev/null 2>&1
+```
+
+## 6. Installation de Kubernetes (Kubeadm, Kubelet, Kubectl)
+
+```bash
+curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.30/deb/Release.key | gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+echo "deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] http://pkgs.k8s.io/core:/stable:/v1.30/deb/ /" | tee /etc/apt/sources.list.d/kubernetes.list
+apt update
+apt -y install kubeadm kubelet kubectl
+ln -s /opt/cni/bin /usr/lib/cni
+```
+
+## 7. Initialisation du Cluster Kubernetes
+
+Sur **le master (kube01)** :
+
+```bash
+kubeadm init --control-plane-endpoint=192.168.10.10 --pod-network-cidr=10.244.0.0/16
+```
+
+Post-initialisation :
+
+```bash
+mkdir -p $HOME/.kube
+cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
+chown $(id -u):$(id -g) $HOME/.kube/config
+```
+
+Si root :
+
+```bash
+export KUBECONFIG=/etc/kubernetes/admin.conf
+```
+
+## 8. Ajout des Workers
+
+Sur **chaque worker** :
+
+```bash
+kubeadm join 192.168.10.10:6443 --token <TOKEN> \
+    --discovery-token-ca-cert-hash sha256:<HASH>
+```
+
+Vérification :
+
+```bash
+kubectl get nodes
+```
+
+## 9. Installation du réseau des Pods
+
+```bash
+kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
+```
+