(FACT-2722) Add disks fact for Solaris

lib/facter/facts/solaris/disks.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module Facts
+  module Solaris
+    class Disks
+      FACT_NAME = 'disks'
+
+      def call_the_resolver
+        fact_value = Facter::Resolvers::Solaris::Disks.resolve(:disks)
+        Facter::ResolvedFact.new(FACT_NAME, fact_value)
+      end
+    end
+  end
+end

lib/facter/resolvers/load_averages.rb

@@ -14,6 +14,8 @@ def post_resolve(fact_name)
 
         def read_load_averages(fact_name)
           require_relative 'utils/ffi/load_averages'
+
+          log.debug('loading cpu load averages')
           @fact_list[:load_averages] = %w[1m 5m 15m].zip(Utils::Ffi::LoadAverages.read_load_averages).to_h
 
           @fact_list[fact_name]

lib/facter/resolvers/solaris/disks.rb

@@ -0,0 +1,51 @@
+# frozen_string_literal: true
+
+module Facter
+  module Resolvers
+    module Solaris
+      class Disks < BaseResolver
+        @semaphore = Mutex.new
+        @fact_list ||= {}
+
+        class << self
+          private
+
+          def post_resolve(fact_name)
+            @fact_list.fetch(fact_name) { read_disks_info(fact_name) }
+          end
+
+          def read_disks_info(fact_name)
+            return unless File.executable?('/usr/bin/kstat')
+
+            log.debug('loading disks info')
+
+            kstat_output = Facter::Core::Execution.execute('/usr/bin/kstat sderr', logger: log)
+            return if kstat_output.empty?
+
+            @fact_list[fact_name] = parse(kstat_output)
+          end
+
+          def parse(kstat_output)
+            disks = {}
+
+            names = kstat_output.scan(/name:\s+(\w+)/).flatten
+            products = kstat_output.scan(/Product\s+(.+)/).flatten
+            vendors = kstat_output.scan(/Vendor\s+(\w+)/).flatten
+            sizes = kstat_output.scan(/Size\s+(\w+)/).flatten
+
+            names.each_with_index do |name, index|
+              disk_size = sizes[index].to_i
+              disks[name] = {
+                product: products[index],
+                size: Facter::FactsUtils::UnitConverter.bytes_to_human_readable(disk_size),
+                size_bytes: disk_size,
+                vendor: vendors[index]
+              }
+            end
+            disks
+          end
+        end
+      end
+    end
+  end
+end

spec/facter/facts/solaris/disks_spec.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+describe Facts::Solaris::Disks do
+  describe '#call_the_resolver' do
+    subject(:fact) { Facts::Solaris::Disks.new }
+
+    let(:value) do
+      {
+        'sd0' => {
+          'product' => 'VMware IDE CDR00Revision',
+          'size' => '0 bytes',
+          'size_bytes' => 0,
+          'vendor' => 'NECVMWar'
+        },
+        'sd1' => {
+          'product' => 'Virtual disk    Revision',
+          'size' => '20.00 GiB',
+          'size_bytes' => 21_474_836_480,
+          'vendor' => 'VMware'
+        }
+      }
+    end
+
+    before do
+      allow(Facter::Resolvers::Solaris::Disks).to receive(:resolve).with(:disks).and_return(value)
+    end
+
+    it 'calls Facter::Resolvers::Solaris::Disks' do
+      fact.call_the_resolver
+      expect(Facter::Resolvers::Solaris::Disks).to have_received(:resolve).with(:disks)
+    end
+
+    it 'returns disks fact' do
+      expect(fact.call_the_resolver).to be_an_instance_of(Facter::ResolvedFact).and \
+        have_attributes(name: 'disks', value: value)
+    end
+  end
+end

spec/facter/resolvers/solaris/disks_spec.rb

@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+describe Facter::Resolvers::Solaris::Disks do
+  subject(:resolver) { Facter::Resolvers::Solaris::Disks }
+
+  before do
+    allow(File).to receive(:executable?).with('/usr/bin/kstat').and_return(status)
+    allow(Facter::Core::Execution)
+      .to receive(:execute)
+      .with('/usr/bin/kstat sderr', logger: resolver.log)
+      .and_return(output)
+  end
+
+  after do
+    resolver.invalidate_cache
+  end
+
+  context 'when kstat is present and can retrieve information' do
+    let(:value) do
+      {
+        'sd0' => {
+          product: 'VMware IDE CDR00Revision',
+          size: '0 bytes',
+          size_bytes: 0,
+          vendor: 'NECVMWar'
+        },
+        'sd1' => {
+          product: 'Virtual disk    Revision',
+          size: '20.00 GiB',
+          size_bytes: 21_474_836_480,
+          vendor: 'VMware'
+        }
+      }
+    end
+    let(:status) { true }
+    let(:output) { load_fixture('kstat_sderr').read }
+
+    it 'returns disks info' do
+      expect(resolver.resolve(:disks)).to eq(value)
+    end
+  end
+
+  context 'when kstat is not present' do
+    let(:output) { '' }
+    let(:status) { false }
+
+    it 'returns nil' do
+      expect(resolver.resolve(:disks)).to be_nil
+    end
+  end
+
+  context 'when kstat is present but fails' do
+    let(:output) { '' }
+    let(:status) { true }
+
+    it 'returns nil' do
+      expect(resolver.resolve(:disks)).to be_nil
+    end
+  end
+end

spec/fixtures/kstat_sderr

@@ -0,0 +1,39 @@
+module: sderr                           instance: 0
+name:   sd0,err                         class:    device_error
+        Device Not Ready                0
+        Hard Errors                     0
+        Illegal Request                 1
+        Media Error                     0
+        No Device                       0
+        Non-Aligned Writes              0
+        Predictive Failure Analysis     0
+        Product                         VMware IDE CDR00Revision
+        Recoverable                     0
+        Revision                        1.00
+        Serial No
+        Size                            0
+        Soft Errors                     0
+        Transport Errors                0
+        Vendor                          NECVMWar
+        crtime                          36.863598884
+        snaptime                        10853.889452697
+
+module: sderr                           instance: 1
+name:   sd1,err                         class:    device_error
+        Device Not Ready                0
+        Hard Errors                     0
+        Illegal Request                 8
+        Media Error                     0
+        No Device                       0
+        Non-Aligned Writes              0
+        Predictive Failure Analysis     0
+        Product                         Virtual disk    Revision
+        Recoverable                     0
+        Revision                        1.0
+        Serial No
+        Size                            21474836480
+        Soft Errors                     0
+        Transport Errors                0
+        Vendor                          VMware
+        crtime                          36.668316603
+        snaptime                        10853.889846855