inital_k8s_config.sh

#!/bin/bash

sudo snap remove docker

sudo apt update && sudo apt install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common gnupg2

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/docker.gpg

sudo add-apt-repository -y "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

sudo apt update

sudo apt install -y docker-ce docker-ce-cli containerd.io

sudo groupadd docker
sudo usermod -aG docker $USER

echo "{ \
  \"exec-opts\": [\"native.cgroupdriver=systemd\"], \
  \"log-driver\": \"json-file\", \
  \"log-opts\": { \
    \"max-size\": \"100m\" \
  }, \
  \"storage-driver\": \"overlay2\" \
}" | sudo tee /etc/docker/daemon.json

sudo systemctl restart docker

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

sudo sed -i "/            SystemdCgroup = false/c\\            SystemdCgroup = true" /etc/containerd/config.toml

sudo systemctl restart containerd

sudo systemctl enable containerd

curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/kubernetes.gpg

echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee -a /etc/apt/sources.list.d/kubernetes.list

sudo apt update && sudo apt install -y kubectl kubeadm

sudo kubeadm config images pull

sudo swapoff -a

sudo sed -i "/swap/s/^/# /g" /etc/fstab