CloudForms Automate - check DNS for VM's FQDN name before giving it out to VM being provisioned.

Check DNS for VM FQDN

vm_fqdn = "#{vm_name}#{hostname_suffix}"
begin
  Resolv::DNS.new.getaddress(vm_fqdn)
rescue Resolv::ResolvError
  #If we get a ResolvError, that means that the VM FQDN cannot be found
  #That indicates that the VM name that we have calculated does not exist in DNS already
  #return VM name here
rescue => err
  $evm.log(:warn, "Error querying DNS for VM name:|#{err}")
end