Support AllowedCPUs in Systemd::Unit::Slice (#581)

* support AllowedCPUs in Systemd::Unit::Slice

* Update REFERENCE.md to include AllowedCPUs

---------

Co-authored-by: John Warburton <[email protected]>

Author: johnwarburton

REFERENCE.md

@@ -5955,6 +5955,7 @@ Alias of
 
 ```puppet
 Struct[{
+    Optional['AllowedCPUs']         => Pattern[/^\d+(-\d+)?(,\d+(-\d+)?)*$/],
     Optional['CPUAccounting']       => Boolean,
     Optional['CPUQuota']            => Optional[Pattern['^([1-9][0-9]*)%$']], # bigger than 100% is okay.
     Optional['CPUShares']           => Integer[2,262144],

spec/type_aliases/systemd_unit_slice_spec.rb

@@ -13,6 +13,13 @@
   it { is_expected.to allow_value({ 'IOAccounting' => false }) }
   it { is_expected.to allow_value({ 'IOWeight' => 100 }) }
 
+  # AllowedCPUs valid formats
+  it { is_expected.to allow_value({ 'AllowedCPUs' => '0' }) }
+  it { is_expected.to allow_value({ 'AllowedCPUs' => '0-4' }) }
+  it { is_expected.to allow_value({ 'AllowedCPUs' => '0,1,2,3,4' }) }
+  it { is_expected.to allow_value({ 'AllowedCPUs' => '0-2,4' }) }
+  it { is_expected.to allow_value({ 'AllowedCPUs' => '0-7,16-23' }) }
+
   it { is_expected.to allow_value({ 'DeviceAllow' => '/dev/sda1' }) }
   it { is_expected.to allow_value({ 'DeviceAllow' => 'block-loop' }) }
   it { is_expected.not_to allow_value({ 'DeviceAllow' => 'random' }) }
@@ -32,4 +39,11 @@
   it { is_expected.not_to allow_value({ 'CPUQuota' => 50 }) }
   it { is_expected.not_to allow_value({ 'CPUQuota' => '0%' }) }
   it { is_expected.not_to allow_value({ 'MemoryHigh' => '1Y' }) }
+
+  # AllowedCPUs invalid formats
+  it { is_expected.not_to allow_value({ 'AllowedCPUs' => '' }) }
+  it { is_expected.not_to allow_value({ 'AllowedCPUs' => '-4' }) }
+  it { is_expected.not_to allow_value({ 'AllowedCPUs' => '0-' }) }
+  it { is_expected.not_to allow_value({ 'AllowedCPUs' => '0,,4' }) }
+  it { is_expected.not_to allow_value({ 'AllowedCPUs' => 'abc' }) }
 end

types/unit/slice.pp

@@ -4,6 +4,7 @@
 #
 type Systemd::Unit::Slice = Struct[
   {
+    Optional['AllowedCPUs']         => Pattern[/^\d+(-\d+)?(,\d+(-\d+)?)*$/],
     Optional['CPUAccounting']       => Boolean,
     Optional['CPUQuota']            => Optional[Pattern['^([1-9][0-9]*)%$']], # bigger than 100% is okay.
     Optional['CPUShares']           => Integer[2,262144],