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Contents
# frozen_string_literal: true
module Facter
module Resolvers
class Virtualization < BaseResolver
@log = Facter::Log.new(self)
@semaphore = Mutex.new
@fact_list ||= {}
class << self
# Virtual
# Is_Virtual
private
def post_resolve(fact_name)
@fact_list.fetch(fact_name) { read_fact_from_computer_system(fact_name) }
end
def read_fact_from_computer_system(fact_name)
win = Win32Ole.new
comp = win.exec_query('SELECT Manufacturer,Model,OEMStringArray FROM Win32_ComputerSystem')
unless comp
@log.debug 'WMI query returned no results for Win32_ComputerSystem with values'\
' Manufacturer, Model and OEMStringArray.'
return
end
build_fact_list(comp)
@fact_list[fact_name]
end
def determine_hypervisor_by_model(comp)
model_hash = { 'VirtualBox' => 'virtualbox', 'VMware' => 'vmware', 'KVM' => 'kvm',
'Bochs' => 'bochs', 'Google' => 'gce', 'OpenStack' => 'openstack' }
model_hash[model_hash.keys.find { |key| comp.Model =~ /^#{key}/ }]
end
def determine_hypervisor_by_manufacturer(comp)
manufacturer = comp.Manufacturer
if comp.Model =~ /^Virtual Machine/ && manufacturer =~ /^Microsoft/
'hyperv'
elsif manufacturer =~ /^Xen/
'xen'
elsif manufacturer =~ /^Amazon EC2/
'kvm'
else
'physical'
end
end
def build_fact_list(comp)
@fact_list[:oem_strings] = []
@fact_list[:oem_strings] += comp.to_enum.map(&:OEMStringArray).flatten
comp = comp.to_enum.first
hypervisor = determine_hypervisor_by_model(comp) || determine_hypervisor_by_manufacturer(comp)
@fact_list[:virtual] = hypervisor
@fact_list[:is_virtual] = (!hypervisor.include?('physical')).to_s
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems