Installing Kubernetes via kubeadm - List of commands

Installing Kubernetes via kubeadm

Master Node Commands:

# Add the commands below to this script depending on your Linux distro
vi install-kubeadm.sh 

# CentOS / RHEL
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-\$basearch
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
exclude=kubelet kubeadm kubectl
EOF
# Set SELinux in permissive mode (effectively disabling it)
sudo setenforce 0
sudo sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
sudo yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
sudo systemctl enable --now kubelet


# Ubuntu / Debian
sudo apt-get update && sudo apt-get install -y apt-transport-https curl
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF
sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectl


chmod +x instal-kubeadm.sh 
./instal-kubeadm.sh 
sudo yum update
sudo yum install docker
sudo systemctl enable docker.service
sudo systemctl start docker.service
sudo kubeadm init
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
kubectl apply -f cluster_objects.yaml


# Worker Node Commands:

vi install-kubeadm.sh
chmod +x instal-kubeadm.sh 
./instal-kubeadm.sh 
sudo yum update
sudo yum install docker
sudo systemctl enable docker.service
sudo systemctl start docker.service
sudo su
kubeadm join 172.31.93.99:6443 --token g262wo.f2i9agxt32opwgmf \ 
    --discovery-token-ca-cert-hash sha256:a2e9572ad8b95ddf2b2620e66ee588eb0157b9eacadaf9c2d43d64c765570557