freshInstall.sh

echo "██████╗  ██████╗  ██████╗██╗  ██╗███████╗██████╗ "
echo "██╔══██╗██╔═══██╗██╔════╝██║ ██╔╝██╔════╝██╔══██╗"
echo "██║  ██║██║   ██║██║     █████╔╝ █████╗  ██████╔╝"
echo "██║  ██║██║   ██║██║     ██╔═██╗ ██╔══╝  ██╔══██╗"
echo "██████╔╝╚██████╔╝╚██████╗██║  ██╗███████╗██║  ██║"
echo "╚═════╝  ╚═════╝  ╚═════╝╚═╝  ╚═╝╚══════╝╚═╝  ╚═╝"
echo "                                                 "

yum remove -y docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-selinux \
                  docker-engine-selinux \
                  docker-engine
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-config-manager --enable docker-ce-edge
yum install -y docker-ce
systemctl enable docker && systemctl start docker

echo "██╗  ██╗██╗   ██╗██████╗ ███████╗██████╗ ███╗   ██╗███████╗████████╗███████╗███████╗"
echo "██║ ██╔╝██║   ██║██╔══██╗██╔════╝██╔══██╗████╗  ██║██╔════╝╚══██╔══╝██╔════╝██╔════╝"
echo "█████╔╝ ██║   ██║██████╔╝█████╗  ██████╔╝██╔██╗ ██║█████╗     ██║   █████╗  ███████╗"
echo "██╔═██╗ ██║   ██║██╔══██╗██╔══╝  ██╔══██╗██║╚██╗██║██╔══╝     ██║   ██╔══╝  ╚════██║"
echo "██║  ██╗╚██████╔╝██████╔╝███████╗██║  ██║██║ ╚████║███████╗   ██║   ███████╗███████║"
echo "╚═╝  ╚═╝ ╚═════╝ ╚═════╝ ╚══════╝╚═╝  ╚═╝╚═╝  ╚═══╝╚══════╝   ╚═╝   ╚══════╝╚══════╝"
echo "                                                                                    "

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

# Set SELinux in permissive mode (effectively disabling it)
setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config

yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes

systemctl enable kubelet && systemctl start kubelet

setenforce 0

cat <<EOF >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl --system