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# frozen_string_literal: true
#
# Author:: Tim Smith (<tsmith@chef.io>)
# Copyright:: Copyright (c) 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.
# How we detect Alibaba from easiest to hardest & least reliable
# 1. Ohai alibaba hint exists. This always works
# 2. DMI sys_vendor data mentions alibaba.
Ohai.plugin(:Alibaba) do
require_relative "../mixin/alibaba_metadata"
require_relative "../mixin/http_helper"
include Ohai::Mixin::AlibabaMetadata
include Ohai::Mixin::HttpHelper
provides "alibaba"
# look for alibaba string in dmi sys_vendor data within the sys tree.
# this works even if the system lacks dmidecode use by the Dmi plugin
# @return [Boolean] do we have Alibaba DMI data?
def has_ali_dmi?
if file_val_if_exists("/sys/class/dmi/id/sys_vendor").include?("Alibaba")
# if /Alibaba/.match?(file_val_if_exists("/sys/class/dmi/id/sys_vendor"))
logger.trace("Plugin Alibaba: has_ali_dmi? == true")
true
else
logger.trace("Plugin Alibaba: has_ali_dmi? == false")
false
end
end
# return the contents of a file if the file exists
# @param path[String] abs path to the file
# @return [String] contents of the file if it exists
def file_val_if_exists(path)
if file_exist?(path)
file_read(path)
end
end
# a single check that combines all the various detection methods for Alibaba
# @return [Boolean] Does the system appear to be on Alibaba
def looks_like_alibaba?
return true if hint?("alibaba") || has_ali_dmi?
end
collect_data do
if looks_like_alibaba?
logger.trace("Plugin Alibaba: looks_like_alibaba? == true")
alibaba Mash.new
fetch_metadata.each do |k, v|
alibaba[k] = v
end
else
logger.trace("Plugin Alibaba: looks_like_alibaba? == false")
false
end
end
end
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