Esxi as a provider ( following the link above )

We will try using ubuntu first
Get Ubuntu iso, upload to datastore and build vm
Perform apt update and upgrade, reboot, install open-vm-tools then reboot
Add vagrant user with password vagrant and ensure it can su password free.
Add vagrants key

• mkdir -p /home/vagrant/.ssh
  
• wget --no-check-certificate https://raw.github.com/mitchellh/vagrant/master/keys/vagrant.pub -O /home/vagrant/.ssh/authorized_keys
  

Set the correct permissions on .ssh files
Ensure the ssh server is installed and working
Create Vagrantfile

Vagrant.configure("2") do |config|
  config.vm.box = 'vsphere'
  config.vm.box_url = 'https://vagrantcloud.com/ssx/boxes/vsphere-dummy/versions/1/providers/vsphere.box'
 
  config.vm.provider :vsphere do |vsphere|
    # The host we're going to connect to
    vsphere.host = '192.168.1.253'                            
 
   # The host for the new VM
    vsphere.compute_resource_name = '192.168.1.2'            
 
    # The resource pool for the new VM
    vsphere.resource_pool_name = 'Linux'                    
 
    # The template we're going to clone        
    vsphere.template_name = 'ubuntu.template.dc.sw10.net'    
 
    # The name of the new machine
    vsphere.name = 'bingo'                                     
 
    # vSphere login
    vsphere.user = 'root'                                    
 
    # vSphere password
    vsphere.password = 'password'                            
 
    # If you don't have SSL configured correctly, set this to 'true'
    vsphere.insecure = true                                    
  end
end