kubernetes-install.sh

sudo apt update
sudo apt -y upgrade

# Install basic dependencies

sudo apt -y install curl apt-transport-https
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
// echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main"

# Disable Swap 

sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
sudo swapoff -a

# Enable kernel modules for crio

sudo modprobe overlay
sudo modprobe br_netfilter

sudo tee /etc/sysctl.d/kubernetes.conf<<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF

sudo sysctl --system

#Install crio

export OS=xUbuntu_18.04
export CRIO_VERSION=1.23

echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/$OS/ /"|sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list
echo "deb http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable:/cri-o:/$CRIO_VERSION/$OS/ /"|sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable:cri-o:$CRIO_VERSION.list

curl -L https://download.opensuse.org/repositories/devel:kubic:libcontainers:stable:cri-o:$CRIO_VERSION/$OS/Release.key | sudo apt-key add -
curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/$OS/Release.key | sudo apt-key add -

sudo apt update
sudo apt install cri-o cri-o-runc -y

apt-cache policy cri-o

sudo systemctl daemon-reload
sudo systemctl enable crio --now

# Install kubelet, kubeadm and kubectl

sudo apt update
sudo apt -y install vim git curl wget kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectl

kubectl version --client && kubeadm version

# Initialize cluster

# sudo systemctl enable kubelet

#sudo kubeadm config images pull

# kubeadm init options that are used to bootstrap cluster.


sudo kubeadm init  --pod-network-cidr=10.10.0.0/16 --cri-socket=unix:///var/run/crio/crio.sock

# To start using your cluster, you need to run the following as a regular user:

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

kubectl cluster-info

# Remove the master taint : test environments
kubectl taint nodes --all node-role.kubernetes.io/control-plane-

# Install network plugin on Master

curl https://raw.githubusercontent.com/projectcalico/calico/v3.25.0/manifests/calico.yaml -O

kubectl apply -f calico.yaml


kubectl get nodes -o wide