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#
# Author:: Bryan McLellan (btm@loftninjas.org)
# Copyright:: Copyright (c) 2009 Bryan McLellan
# Copyright:: Copyright (c) 2015-2018 Chef Software, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
Ohai.plugin(:Virtualization) do
provides "virtualization"
depends "dmi"
require "ohai/mixin/dmi_decode"
include Ohai::Mixin::DmiDecode
collect_data(:freebsd, :openbsd, :netbsd, :dragonflybsd) do
virtualization Mash.new unless virtualization
virtualization[:systems] = Mash.new unless virtualization[:systems]
# detect when in a jail or when a jail is actively running (not in stopped state)
so = shell_out("sysctl -n security.jail.jailed")
if so.stdout.split($/)[0].to_i == 1
virtualization[:system] = "jail"
virtualization[:role] = "guest"
virtualization[:systems][:jail] = "guest"
logger.trace("Plugin Virtualization: Guest running in FreeBSD jail detected")
end
# run jls to get a list of running jails
# -n: name=value 1 line per jail format
# -d: list the dying jails as well as active jails
so = shell_out("jls -nd")
if (so.stdout || "").lines.count >= 1
virtualization[:system] = "jail"
virtualization[:role] = "host"
virtualization[:systems][:jail] = "host"
logger.trace("Plugin Virtualization: Host running FreeBSD jails detected")
end
# detect from modules
so = shell_out((Ohai.abs_path("/sbin/kldstat")).to_s)
so.stdout.lines do |line|
case line
when /vboxdrv/
virtualization[:system] = "vbox"
virtualization[:role] = "host"
virtualization[:systems][:vbox] = "host"
logger.trace("Plugin Virtualization: Guest running on VirtualBox detected")
when /vboxguest/
virtualization[:system] = "vbox"
virtualization[:role] = "guest"
virtualization[:systems][:vbox] = "guest"
logger.trace("Plugin Virtualization: Host running VirtualBox detected")
end
end
# Detect bhyve by presence of /dev/vmm
if File.exist?("/dev/vmm")
virtualization[:system] = "bhyve"
virtualization[:role] = "host"
virtualization[:systems][:bhyve] = "host"
logger.trace("Plugin Virtualization: Host running bhyve detected")
end
# Detect KVM/QEMU paravirt guests from cpu, report as KVM
# hw.model: QEMU Virtual CPU version 0.9.1
so = shell_out("sysctl -n hw.model")
if so.stdout =~ /QEMU Virtual CPU|KVM processor/
virtualization[:system] = "kvm"
virtualization[:role] = "guest"
virtualization[:systems][:kvm] = "guest"
logger.trace("Plugin Virtualization: Guest running on KVM detected")
end
# gather hypervisor of guests from sysctl kern.vm_guest
# there are a limited number of hypervisors detected here, BUT it doesn't
# require dmidecode to be installed and dmidecode isn't in freebsd out of the box
so = shell_out("sysctl -n kern.vm_guest")
hypervisor = case so.stdout
when /vmware/
"vmware"
when /hv/
"hyperv"
when /xen/
"xen"
when /kvm/
so = shell_out("sysctl -n kern.hostuuid")
so.stdout =~ /^ec2/ ? "amazonec2" : "kvm"
when /bhyve/
"bhyve"
end
if hypervisor
virtualization[:system] = hypervisor
virtualization[:role] = "guest"
virtualization[:systems][hypervisor.to_sym] = "guest"
logger.trace("Plugin Virtualization: Guest running on #{hypervisor} detected")
end
# parse dmi to discover various virtualization guests
guest = guest_from_dmi_data(get_attribute(:dmi, :system, :manufacturer), get_attribute(:dmi, :system, :product), get_attribute(:dmi, :system, :version))
if guest
logger.trace("Plugin Virtualization: DMI data indicates #{guest} guest")
virtualization[:system] = guest
virtualization[:role] = "guest"
virtualization[:systems][guest.to_sym] = "guest"
end
end
end
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