Kubernetes multinode vagrant file

Vagrantfile-kubernetes

VAGRANTFILE_API_VERSION = '2'

# Usage:
#  vagrant up master
#  # After master's provisioning is done, take note of the `kubeadm join` command
#  # and copy the token and certificate sha into K8S_NODE_INIT script. Alternatively,
#  # execute the following command:
#  #   sudo kubeadm token create --print-join-command
#  vagrant ip node1
#
# If you want to add more nodes, just copy and paste the
# "config.vm.define 'node1' do |n1|" block, changing references
# to n1 for n2, etc

DOCKER_VERSION = "5:18.09.0~3-0~ubuntu-xenial"
APT_K8S_GPG    = 'https://packages.cloud.google.com/apt/doc/apt-key.gpg'
APT_K8S_REPO   = 'https://apt.kubernetes.io/'

K8S_MASTER_IPADDR    = '192.168.252.10'
K8S_NODE1_IPADDR     = '192.168.252.11'
K8S_POD_NETWORK_CIDR = '192.168.252.0/23'

$DOCKER_INSTALL_SCRIPT = <<-SCRIPT
  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
  add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
  apt-get update
  apt-get install -y docker-ce=#{DOCKER_VERSION}
SCRIPT

$K8S_INSTALL_SCRIPT = <<-SCRIPT
  curl -s #{APT_K8S_GPG} | apt-key add -
  add-apt-repository "deb [arch=amd64] #{APT_K8S_REPO} kubernetes-xenial main"
  apt-get update
  apt-get install -y kubelet kubeadm kubectl
  apt-mark hold kubelet kubeadm kubectl
SCRIPT

$K8S_MASTER_INIT = <<-SCRIPT
  kubeadm init \
    --pod-network-cidr=#{K8S_POD_NETWORK_CIDR} \
    --apiserver-advertise-address=#{K8S_MASTER_IPADDR}
SCRIPT

$K8S_MASTER_NETWORK = <<-SCRIPT
  export KUBECONFIG=/etc/kubernetes/admin.conf
  kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/a70459be0084506e4ec919aa1c114638878db11b/Documentation/kube-flannel.yml
  sysctl net.bridge.bridge-nf-call-iptables=1
SCRIPT

# After starting the master run the following command, and copy the token and hash in here
#  sudo kubeadm token create --print-join-command
$K8S_NODE_INIT = <<-SCRIPT
  kubeadm join #{K8S_MASTER_IPADDR}:6443 \
    --token zlme3y.yepd1ssvzvdamp2a \
    --discovery-token-ca-cert-hash sha256:e6218d9764ca4cc25706012b8dbe5fca8a1bd73ee2cdb4225498343043a4048f
  sysctl net.bridge.bridge-nf-call-iptables=1
SCRIPT

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  config.vm.provider :virtualbox do |vb|
    vb.gui = false
    vb.customize [ 'modifyvm', :id, '--memory', '2048' ]
    vb.customize [ 'modifyvm', :id, '--nictype1', 'virtio' ]
    vb.customize [ 'modifyvm', :id, '--natdnshostresolver1', 'on' ]
    vb.customize [ 'modifyvm', :id, '--natdnsproxy1', 'on' ]
  end

  config.vm.define 'master' do |master|
    master.vm.box      = 'ubuntu/xenial64'
    master.vm.hostname = 'master'

    master.vm.network "private_network", ip: "#{K8S_MASTER_IPADDR}", nic_type: "virtio", virtualbox__intnet: true
    master.vm.network "forwarded_port", guest: 6443, host: 6444

    master.vm.provision 'shell', inline: 'apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5'
    master.vm.provision 'shell', inline: 'apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32'
    master.vm.provision 'shell', inline: 'apt-get update'
    master.vm.provision 'shell', inline: 'apt-get install -y -qq apt-transport-https curl'
    master.vm.provision 'shell', inline: $DOCKER_INSTALL_SCRIPT
    master.vm.provision 'shell', inline: $K8S_INSTALL_SCRIPT
    master.vm.provision 'shell', inline: $K8S_MASTER_INIT
    master.vm.provision 'shell', inline: $K8S_MASTER_NETWORK
  end

  config.vm.define 'node1' do |n1|
    n1.vm.box      = 'ubuntu/xenial64'
    n1.vm.hostname = 'n1'

    n1.vm.network "private_network", ip: "#{K8S_NODE1_IPADDR}", nic_type: "virtio", virtualbox__intnet: true
    # Export more ports here
    #n1.vm.network "forwarded_port", guest: 80,  host: 8888
    #n1.vm.network "forwarded_port", guest: 443, host: 4443

    n1.vm.provision 'shell', inline: 'apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5'
    n1.vm.provision 'shell', inline: 'apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32'
    n1.vm.provision 'shell', inline: 'apt-get update'
    n1.vm.provision 'shell', inline: 'apt-get install -y -qq apt-transport-https curl'
    n1.vm.provision 'shell', inline: $DOCKER_INSTALL_SCRIPT
    n1.vm.provision 'shell', inline: $K8S_INSTALL_SCRIPT
    n1.vm.provision 'shell', inline: $K8S_NODE_INIT
  end

end

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NANI