class Facter::Resolvers::VirtWhat

Private Class Methods

determine_other(output) click to toggle source
# File lib/facter/resolvers/virt_what.rb, line 37
def determine_other(output)
  values = output.split("\n")
  other_vm = values.first
  return unless other_vm

  return 'zlinux' if /ibm_systemz/.match?(other_vm)
  return retrieve_vserver if /linux_vserver/.match?(other_vm)
  return (values - ['redhat']).first if values.include?('redhat')

  other_vm
end
determine_xen(output) click to toggle source
# File lib/facter/resolvers/virt_what.rb, line 25
def determine_xen(output)
  xen_info = /^xen\n.*/.match(output)

  return unless xen_info

  xen_info = xen_info.to_s
  return 'xenu' if /xen-domu/.match?(xen_info)
  return 'xenhvm' if /xen-hvm/.match?(xen_info)

  'xen0' if /xen-dom0/.match?(xen_info)
end
post_resolve(fact_name, _options) click to toggle source
# File lib/facter/resolvers/virt_what.rb, line 11
def post_resolve(fact_name, _options)
  @fact_list.fetch(fact_name) { retrieve_from_virt_what(fact_name) }
end
retrieve_from_virt_what(fact_name) click to toggle source
# File lib/facter/resolvers/virt_what.rb, line 15
def retrieve_from_virt_what(fact_name)
  output = Facter::Core::Execution.execute('virt-what', logger: log)

  @fact_list[:vm] = determine_xen(output)
  @fact_list[:vm] ||= determine_other(output)
  retrieve_vserver unless @fact_list[:vserver]

  @fact_list[fact_name]
end
retrieve_vserver() click to toggle source
# File lib/facter/resolvers/virt_what.rb, line 49
def retrieve_vserver
  proc_status_content = Facter::Util::FileHelper.safe_readlines('/proc/self/status', nil)
  return unless proc_status_content

  proc_status_content.each do |line|
    parts = line.split("\s")
    next unless parts.size.equal?(2)

    next unless /^s_context:|^VxID:/.match?(parts[0])
    return @fact_list[:vserver] = 'vserver_host' if parts[1] == '0'

    return @fact_list[:vserver] = 'vserver'
  end
end