unkinben
d5cfaed7d4
A forthcoming profile needs to set the I/O scheduler to noop/none on the disks backing ceph OSDs, so Puppet must know which block devices those are. This fact surfaces them by inspecting LVM PVs whose volume group belongs to ceph. - add ceph_osd_devices fact returning the sorted array of PV device paths whose VG name starts with ceph- - confine the fact to physical Linux hosts with pvs installed so it never resolves on VMs https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT Reviewed-on: #504 Co-authored-by: Ben Vincent <ben@unkin.net> Co-committed-by: Ben Vincent <ben@unkin.net>
24 lines
564 B
Ruby
24 lines
564 B
Ruby
# frozen_string_literal: true
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require 'facter'
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Facter.add(:ceph_osd_devices) do
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confine kernel: 'Linux'
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confine { Facter.value(:is_virtual) == false }
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confine { Facter::Core::Execution.which('pvs') }
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setcode do
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devices = []
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output = Facter::Core::Execution.execute(
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'pvs --noheadings -o pv_name,vg_name 2>/dev/null',
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on_fail: nil
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)
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output&.each_line do |line|
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pv_name, vg_name = line.split
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next unless pv_name && vg_name
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devices << pv_name if vg_name.start_with?('ceph-')
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end
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devices.sort
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end
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end
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