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Versions: 12
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Contents
# frozen_string_literal: true
module Facter
module Resolvers
class VirtWhat < BaseResolver
@semaphore = Mutex.new
@fact_list ||= {}
class << self
private
def post_resolve(fact_name)
@fact_list.fetch(fact_name) { retrieve_from_virt_what(fact_name) }
end
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
def determine_xen(output)
xen_info = /^xen\n.*/.match(output)
return unless xen_info
xen_info = xen_info.to_s
return 'xenu' if xen_info =~ /xen-domu/
return 'xenhvm' if xen_info =~ /xen-hvm/
return 'xen0' if xen_info =~ /xen-dom0/
end
def determine_other(output)
other_vm = output.split("\n").first
return unless other_vm
return 'zlinux' if other_vm =~ /ibm_systemz/
return retrieve_vserver if other_vm =~ /linux_vserver/
other_vm
end
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 parts[0] =~ /^s_context:|^VxID:/
return @fact_list[:vserver] = 'vserver_host' if parts[1] == '0'
return @fact_list[:vserver] = 'vserver'
end
end
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems