Install K8 on CentOS | Pseudo Steps

install_k8.sh

#!/bin/bash
yum update 
#Install repo adder
yum install -y yum-utils device-mapper-persistent-data lvm2 
yum-config-manager   --add-repo   https://download.docker.com/linux/centos/docker-ce.repo
yum update && yum install docker-ce-18.06.2.ce
mkdir -p /etc/docker
cat > /etc/docker/daemon.json <<EOF
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2",
  "storage-opts": [
    "overlay2.override_kernel_check=true"
  ]
}
EOF
mkdir -p /etc/systemd/system/docker.service.d
systemctl daemon-reload
yum -y install bash-completion
yum -y install bash-completion-extras
yum -y install bash-completion-extras
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
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=kube*
EOF
setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
cat <<EOF >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl --system
yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
kubectl completion bash >/etc/bash_completion.d/kubectl
echo 'source <(kubectl completion bash)' >>~/.bashrc
systemctl enable --now kubelet
systemctl enable docker 
systemctl enable kubelet
service kubelet start
service docker start
service docker status
service kubelet status

#Installing wave-net

#kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"