# -*- mode: ruby -*-
# vi: set ft=ruby :

# This script to install Kubernetes will get executed after we have provisioned the box
$script1 = <<-SCRIPT
# Install kubernetes
yum update -y
yum install wget -y
setenforce 0
sed -i --follow-symlinks 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux
service firewalld start
chkconfig firewalld on

firewall-cmd --permanent --add-port=6443/tcp
firewall-cmd --permanent --add-port=2379-2380/tcp
firewall-cmd --permanent --add-port=10250/tcp
firewall-cmd --permanent --add-port=10251/tcp
firewall-cmd --permanent --add-port=10252/tcp
firewall-cmd --permanent --add-port=10255/tcp

firewall-cmd  --reload
modprobe br_netfilter
echo '1' > /proc/sys/net/bridge/bridge-nf-call-iptables

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=0
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
EOF

# kubelet requires swap off
swapoff -a
# keep swap off after reboot
sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab

yum install kubeadm docker --nogpgcheck -y

systemctl  restart kubelet && systemctl enable kubelet
systemctl restart docker && systemctl enable docker

sleep 30

# Get the IP address that VirtualBox has given this VM
IPADDR=`ifconfig enp0s8 | grep mask | awk '{print $2}'| cut -f2 -d:`
echo This VM has IP address $IPADDR

#adding IP and hostname in /etc/hosts file , if no DNS
#sed -i '$ a $IPADDR kube-master' /etc/hosts

# Set up Kubernetes
NODENAME=$(hostname -s)
kubeadm init --apiserver-cert-extra-sans=$IPADDR  --node-name $NODENAME --pod-network-cidr 172.28.0.0/12

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

#export kubever=$(kubectl version | base64 | tr -d '\n')&env.IPALLOC_RANGE=172.28.0.0/12

#kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$kubever"


SCRIPT


$script2 = <<-SCRIPT
# Install kubernetes
yum update -y
yum install wget -y
setenforce 0
sed -i --follow-symlinks 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux
service firewalld start
chkconfig firewalld on

firewall-cmd --permanent --add-port=10250/tcp
firewall-cmd --permanent --add-port=10255/tcp
firewall-cmd --permanent --add-port=30000-32767/tcp
firewall-cmd --permanent --add-port=6783/tcp
firewall-cmd  --reload
modprobe br_netfilter
echo '1' > /proc/sys/net/bridge/bridge-nf-call-iptables

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=0
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
EOF

# kubelet requires swap off
swapoff -a
# keep swap off after reboot
sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab

yum install kubeadm docker --nogpgcheck -y

systemctl restart docker && systemctl enable docker

# Get the IP address that VirtualBox has given this VM
#IPADDR=`ifconfig enp0s8 | grep mask | awk '{print $2}'| cut -f2 -d:`
#echo This VM has IP address $IPADDR

#adding IP and hostname in /etc/hosts file , if no DNS
#sed -i '$ a $IPADDR kube-worker' /etc/hosts


SCRIPT


Vagrant.configure("2") do |config|

config.vm.define "master" do |master|

master.vm.provider "virtualbox" do |masterconfig|
masterconfig.memory = "3024"
masterconfig.cpus = 3
end


master.vm.box = "geerlingguy/centos7"
master.vm.box_version = "1.2.10"
master.vm.hostname = "kube-master"
master.vm.network "private_network", ip: "172.28.128.3",
	virtualbox__intnet: true
master.vm.provision "shell", inline: $script1

end


config.vm.define "worker" do |worker|

worker.vm.provider "virtualbox" do |workerconfig|
workerconfig.memory = "2024"
workerconfig.cpus = 2
end


worker.vm.box = "geerlingguy/centos7"
worker.vm.box_version = "1.2.10"
worker.vm.hostname = "kube-worker"
worker.vm.network "private_network", ip: "172.28.128.4",
	virtualbox__intnet: true
worker.vm.provision "shell", inline: $script2

end



end