kub.sh

#!/usr/bin/env bash

sudo swapoff -a && sudo sed -i -e '/swap.img/d' /etc/fstab

sudo sudo modprobe br_netfilter && sudo sysctl -w net.bridge.bridge-nf-call-iptables=1 && sudo sysctl -w net.ipv4.ip_forward=1
echo net.ipv4.ip_forward=1 | sudo tee -a /etc/sysctl.conf

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

sudo sysctl --system
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt update -y 
sudo apt install -y containerd.io

sudo mkdir -p /etc/containerd
sudo containerd config default | sudo tee /etc/containerd/config.toml
sudo sed -i 's/SystemdCgroup = false/SystemdCgroup = true/g' /etc/containerd/config.toml
sudo systemctl restart containerd

# kubernetes time
sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update && sudo apt-get install -y kubelet kubeadm kubectl && sudo apt-mark hold kubelet kubeadm kubectl
kubectl version --output=json
sudo systemctl enable kubelet