Vagrantfile

domain = "kubernetes.lab"
control_plane_endpoint = "cilium-master"
pod_network_cidr = "10.40.0.0/16"
service_cidr= "10.64.0.0/20"
pod_network_type = "cilium" # choose between cilium and calico
master_node_ip = "192.168.58.100"
version = "1.26.1"

Vagrant.configure("2") do |config|
    # always use Vagrants insecure key
    config.ssh.insert_key = false
    # forward ssh agent to easily ssh into the different machines
    config.ssh.forward_agent = true

    config.vm.provision :shell, path: "kubeadm/bootstrap.sh", env: { "VERSION" => version }
    config.vm.define "master", primary: true do |master|
      master.vm.box = "oraclebase/oracle-9"
      master.vm.hostname = "cilium-master.#{domain}"
      master.vm.network "public_network", ip: "#{master_node_ip}"
      master.vm.provision "shell", env: {"DOMAIN" => domain, "MASTER_NODE_IP" => master_node_ip} ,inline: <<-SHELL 
      echo "$MASTER_NODE_IP cilium-master.$DOMAIN cilium-master" >> /etc/hosts 
      SHELL
      (1..2).each do |nodeIndex|
        master.vm.provision "shell", env: {"DOMAIN" => domain, "NODE_INDEX" => nodeIndex}, inline: <<-SHELL 
        echo "192.168.58.10$NODE_INDEX cilium-worker-$NODE_INDEX.$DOMAIN cilium-worker-$NODE_INDEX" >> /etc/hosts 
        SHELL
      end
      master.vm.provision "shell", path:"kubeadm/init-master.sh", env: {"K8S_CONTROL_PLANE_ENDPOINT" => control_plane_endpoint, "K8S_POD_NETWORK_CIDR" => pod_network_cidr, "K8S_SERVICE_CIDR" => service_cidr, "K8S_POD_NETWORK_TYPE" => pod_network_type, "MASTER_NODE_IP" => master_node_ip}
    end
    (1..2).each do |nodeIndex|
      config.vm.define "worker-#{nodeIndex}" do |worker|
        worker.vm.box = "oraclebase/oracle-9"
        worker.vm.hostname = "cilium-worker-#{nodeIndex}.#{domain}"
        worker.vm.network "public_network", ip: "192.168.58.10#{nodeIndex}"
        worker.vm.provision "shell", env: {"DOMAIN" => domain, "MASTER_NODE_IP" => master_node_ip} ,inline: <<-SHELL 
        echo "$MASTER_NODE_IP cilium-master.$DOMAIN cilium-master" >> /etc/hosts 
        SHELL
        (1..2).each do |hostIndex|
            worker.vm.provision "shell", env: {"DOMAIN" => domain, "NODE_INDEX" => hostIndex}, inline: <<-SHELL 
            echo "192.168.58.10$NODE_INDEX cilium-worker-$NODE_INDEX.$DOMAIN cilium-worker-$NODE_INDEX" >> /etc/hosts 
            SHELL
        end
        worker.vm.provision "shell", path:"kubeadm/init-worker.sh"
        worker.vm.provision "shell", env: {"NODE_INDEX" => nodeIndex, "MASTER_NODE_IP" => master_node_ip}, inline: <<-SHELL 
            echo ">>> FIX KUBELET NODE IP"
            echo "KUBELET_EXTRA_ARGS=\"--node-ip=$MASTER_NODE_IP\"" | sudo tee -a /var/lib/kubelet/kubeadm-flags.env
            sudo systemctl daemon-reload
            sudo systemctl restart kubelet
            SHELL
      end
    end
    config.vm.provider "virtualbox" do |vb|
      vb.memory = "4096"
      vb.cpus = "2"
      vb.customize ["modifyvm", :id, "--nic1", "nat"]
    end
  end