sudo swapoff -a

cat << EOF | sudo tee /etc/modules-load.d/containerd.conf

overlay

br_netfilter

EOF

sudo modprobe overlay

sudo modprobe br_netfilter

cat << EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf

net.bridge.bridge-nf-call-iptables = 1

net.ipv4.ip_forward = 1

net.bridge.bridge-nf-call-ip6tables = 1

EOF

sudo sysctl --system

sudo apt update

sudo apt install -y containerd

sudo mkdir -p /etc/containerd

sudo containerd config default | sudo tee /etc/containerd/config.toml

sudo systemctl restart containerd

sudo apt update

sudo apt install -y apt-transport-https ca-certificates curl

sudo mkdir -p /etc/apt/keyrings

curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo 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:/v1.28/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list

sudo apt update

sudo apt install -y kubeadm=1.28.0-1.1 kubelet=1.28.0-1.1 kubectl=1.28.0-1.1

sudo apt-mark hold kubeadm kubelet kubectl

sudo kubeadm init --pod-network-cidr 192.168.0.0/16 --kubernetes-version 1.28.0

mkdir -p $HOME/.kube

sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

sudo chown $(id -u):$(id -g) $HOME/.kube/config

kubectl get nodes

kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.26.1/manifests/calico.yaml

kubectl get nodes

kubeadm token create --print-join-command