ubuntu-18.json

{
    "builders": [
      {
        "type": "vsphere-iso",
  
        "vcenter_server":      "{{user `vcenter_server`}}",
        "username":            "{{user `username`}}",
        "password":            "{{user `password`}}",
        "insecure_connection": "true",
  
        "vm_name": "{{ user `template_name` }}" ,
        "datastore": "{{user `datastore`}}",
        "folder": "{{user `folder`}}",
        "host":     "{{user `host`}}",
        "convert_to_template": "true",
        "cluster": "{{user `cluster`}}",
        "network": "{{user `network`}}",
        "boot_order": "disk,cdrom",
  
        "guest_os_type": "ubuntu64Guest",
  
        "ssh_username": "{{user `ssh_username`}}",
        "ssh_password": "{{user `ssh_password`}}",
  
        "CPUs":             2,
        "RAM":              4096,
        "RAM_reserve_all": true,
  
        "disk_controller_type":  "pvscsi",
        "disk_size":        61440,
        "disk_thin_provisioned": true,
  
        "network_card": "vmxnet3",
  
        "iso_urls": "http://cdimage.ubuntu.com/releases/18.04/release/ubuntu-18.04.3-server-amd64.iso",
        "iso_checksum": "7d8e0055d663bffa27c1718685085626cb59346e7626ba3d3f476322271f573e",
        "iso_checksum_type": "sha256",

        "floppy_files": [
          "./preseed.cfg"
        ],
        "boot_command": [
          "<enter><wait><f6><wait><esc><wait>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
          "<bs><bs><bs>",
          "/install/vmlinuz",
          " initrd=/install/initrd.gz",
          " priority=critical",
          " locale=en_US",
          " file=/media/preseed.cfg",
          "<enter>"
        ]
      }
    ],

        "provisioners": [{
        "environment_vars": [
            "DEBIAN_FRONTEND=noninteractive",
            "UBUNTU_SSH_KEY={{ user `ubuntu_ssh_key` }}",
            "VCENTER_USER={{ user `username` }}",
            "VCENTER_PASSWORD={{ user `password` }}",
            "VCENTER_DATASTORE={{ user `datastore` }}",
            "VCENTER_IP={{ user `vcenter_server` }}",
            "VCENTER_CLUSTER={{ user `cluster` }}",
            "VCENTER_FOLDER={{ user `folder` }}",
            "VCENTER_NETWORK={{ user `network` }}",
            "VCENTER_DATACENTER={{ user `datacenter` }}"
        ],
        "execute_command": "echo 'ubuntu' | sudo -S env {{ .Vars }} {{ .Path }}",
        "expect_disconnect": true,
        "scripts": [
            "scripts/install-ssh-key.sh",
            "scripts/setup-for-vsphere-kubeadm.sh",
            "scripts/install-docker-for-kubeadm.sh",
            "scripts/install-kubeadm.sh",
            "scripts/configure-kubeadm.sh",
            "scripts/cleanup.sh"
        ],
        "type": "shell"
    }]
  }