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(FACT-2607) Add Openvz detector (#531)
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,45 @@ | ||
# frozen_string_literal: true | ||
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module Facter | ||
module Resolvers | ||
class OpenVz < BaseResolver | ||
# build | ||
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@semaphore = Mutex.new | ||
@fact_list ||= {} | ||
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class << self | ||
private | ||
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def post_resolve(fact_name) | ||
@fact_list.fetch(fact_name) { check_proc_vz(fact_name) } | ||
end | ||
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def check_proc_vz(fact_name) | ||
if !Dir.exist?('/proc/vz') || !File.executable?('/proc/lve/list') || Dir.entries('/proc/vz').count.equal?(2) | ||
return | ||
end | ||
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@fact_list[:vm] = read_proc_status | ||
@fact_list[fact_name] | ||
end | ||
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def read_proc_status | ||
proc_status_content = Facter::Util::FileHelper.safe_readlines('/proc/self/status', nil) | ||
return unless proc_status_content | ||
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proc_status_content.each do |line| | ||
parts = line.split("\s") | ||
next unless parts.size.equal?(2) | ||
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next unless /^envID:/ =~ parts[0] | ||
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return 'openvzhn' if parts[1] == '0' | ||
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return 'openvzve' | ||
end | ||
end | ||
end | ||
end | ||
end | ||
end |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,50 @@ | ||
# frozen_string_literal: true | ||
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describe Facter::Resolvers::OpenVz do | ||
subject(:openvz_resolver) { Facter::Resolvers::OpenVz } | ||
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let(:vz_dir) { true } | ||
let(:list_executable) { true } | ||
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after do | ||
openvz_resolver.invalidate_cache | ||
end | ||
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before do | ||
allow(Dir).to receive(:exist?).with('/proc/vz').and_return(vz_dir) | ||
allow(File).to receive(:executable?).with('/proc/lve/list').and_return(list_executable) | ||
allow(Dir).to receive(:entries).with('/proc/vz').and_return(vz_dir_entries) | ||
end | ||
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context 'when /proc/vz dir is empty' do | ||
let(:vz_dir_entries) { ['.', '..'] } | ||
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it 'returns nil' do | ||
expect(openvz_resolver.resolve(:vm)).to be_nil | ||
end | ||
end | ||
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context 'when /proc/vz dir is not empty' do | ||
let(:vz_dir_entries) { ['.', '..', 'some_file.txt'] } | ||
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before do | ||
allow(Facter::Util::FileHelper).to receive(:safe_readlines).with('/proc/self/status', nil).and_return(status_file) | ||
end | ||
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context 'when /proc/self/status is nil' do | ||
let(:status_file) { nil } | ||
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it 'returns nil' do | ||
expect(openvz_resolver.resolve(:vm)).to be_nil | ||
end | ||
end | ||
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context 'when /proc/self/status is readable' do | ||
let(:status_file) { load_fixture('proc_self_status').readlines } | ||
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it 'returns openvzhn' do | ||
expect(openvz_resolver.resolve(:vm)).to eql('openvzhn') | ||
end | ||
end | ||
end | ||
end |
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