Facter modlue for gathering cpu facts

Author: Gerard Hickey

hanlon_microkernel/facter/hnl_mk_cpu.rb

@@ -0,0 +1,61 @@
+# Gathers hardware-related facts from the underlying system (used by the
+# hnl_mk_registration_manager to gather these sorts of facts in order to
+# supplement the facts gathered using Facter during the node registration
+# process)
+#
+#
+
+# add the '/usr/local/lib/ruby' directory to the LOAD_PATH
+# (this is where the hanlon_microkernel module files are placed by
+# our Dockerfile)
+$LOAD_PATH.unshift('/usr/local/lib/ruby')
+
+require 'facter'
+
+
+
+virtual_type = Facter.value('virtual')
+lshw_cmd =  (virtual_type && virtual_type == 'kvm') ? 'lshw -disable dmi' : 'lshw'
+lshw_c_cpu_str = %x[sudo #{lshw_cmd} -c cpu 2> /dev/null]
+
+# build the results into a Hash
+results = {}
+lshw_c_cpu_str.split(/\s\s\*-/).each do |definition|
+  unless definition.empty?
+    lines = definition.split(/\n/)
+    item = lines.shift.tr(':', '')
+    attribs = Hash[ lines.collect { |l| l =~ /^\s*([^:]+):\s+(.*)\s*$/; v=$2; [$1.gsub(/\s/, '_'), v] } ]
+    results[item] = attribs
+  end
+end
+
+
+
+results.keys.each do |cpu|
+  results[cpu].each_pair do |k, v|
+    Facter.add("mk_hw_#{cpu}_#{k}") do
+      setcode { v }
+    end
+  end
+end
+
+
+# process the results from lscpu
+facts_to_report = %w{Architecture BogoMIPS Byte_Order CPU_MHz CPU_family CPU_op-modes 
+                     L1d_cache L1i_cache L2_cache L3_cache Model Stepping Vendor_ID 
+                     Virtualization}
+%x[lscpu].split(/\n/).each do |line|
+  line =~ /^([^:]+):\s*(.*)\s*$/
+  if $1
+    key = $1
+    val = $2
+    key.tr!(' ', '_')
+    key.tr!('()', '')
+    if facts_to_report.include? key
+      Facter.add("mk_hw_lscpu_#{key}") do
+        setcode { val }
+      end
+    end
+  end
+end
+