Configurazione iniziale per cluster k8s su Proxmox

cloud-init-control-plane.yaml

@@ -0,0 +1,35 @@
+#cloud-config
+package_update: true
+package_upgrade: true
+packages:
+  - apt-transport-https
+  - ca-certificates
+  - curl
+  - containerd
+
+runcmd:
+  # Disabilita swap (richiesto da kubelet)
+  - swapoff -a
+  - sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
+
+  # Carica moduli del kernel e imposta sysctl
+  - modprobe overlay
+  - modprobe br_netfilter
+  - echo "net.bridge.bridge-nf-call-iptables  = 1" >> /etc/sysctl.conf
+  - echo "net.ipv4.ip_forward                 = 1" >> /etc/sysctl.conf
+  - sysctl -p
+
+  # Installa Kubernetes
+  - curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.29/deb/Release.key | gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+  - echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.29/deb/ /' | tee /etc/apt/sources.list.d/kubernetes.list
+  - apt-get update
+  - apt-get install -y kubelet=${k8s_version} kubeadm=${k8s_version} kubectl=${k8s_version}
+  - apt-mark hold kubelet kubeadm kubectl
+
+  # Inizializza il cluster con kubeadm
+  - kubeadm init --pod-network-cidr=${pod_network_cidr} --apiserver-advertise-address=${advertise_ip}
+
+  # Configura kubectl per l'utente 'ubuntu' (o il tuo utente di default nel template)
+  - mkdir -p /home/ubuntu/.kube
+  - cp -i /etc/kubernetes/admin.conf /home/ubuntu/.kube/config
+  - chown -R ubuntu:ubuntu /home/ubuntu/.kube