X-Git-Url: https://git.openstreetmap.org./chef.git/blobdiff_plain/fdd1bdfdaf34a4915e79aad85ad87c0f783e425a..0f8970107f610c90fd9a8377eebb065893569a27:/cookbooks/hardware/recipes/default.rb

diff --git a/cookbooks/hardware/recipes/default.rb b/cookbooks/hardware/recipes/default.rb
index 92abdf65d..b1d7caf0b 100644
--- a/cookbooks/hardware/recipes/default.rb
+++ b/cookbooks/hardware/recipes/default.rb
@@ -1,14 +1,14 @@
 #
-# Cookbook Name:: hardware
+# Cookbook:: hardware
 # Recipe:: default
 #
-# Copyright 2012, OpenStreetMap Foundation
+# Copyright:: 2012, OpenStreetMap Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+#     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ -17,16 +17,22 @@
 # limitations under the License.
 #
 
-case node[:cpu][:"0"][:vendor_id]
-when "GenuineIntel"
-  package "intel-microcode"
+include_recipe "apt"
+include_recipe "git"
+include_recipe "munin"
+include_recipe "prometheus"
+include_recipe "sysfs"
+include_recipe "tools"
+
+ohai_plugin "hardware" do
+  template "ohai.rb.erb"
 end
 
 case node[:cpu][:"0"][:vendor_id]
+when "GenuineIntel"
+  package "intel-microcode"
 when "AuthenticAMD"
-  if node[:lsb][:release].to_f >= 14.04
-    package "amd64-microcode"
-  end
+  package "amd64-microcode"
 end
 
 if node[:dmi] && node[:dmi][:system]
@@ -43,92 +49,107 @@ else
   product = "Unknown"
 end
 
+units = []
+
+if node[:roles].include?("bytemark") || node[:roles].include?("exonetric") || node[:roles].include?("prgmr")
+  units << "0"
+end
+
 case manufacturer
 when "HP"
   package "hponcfg"
-  package "hp-health"
-  unit = "1"
-  speed = "115200"
-when "TYAN"
-  unit = "0"
-  speed = "115200"
-when "TYAN Computer Corporation"
-  unit = "0"
-  speed = "115200"
-when "Supermicro"
-  case product
-  when "H8DGU", "X9SCD", "X7DBU", "X7DW3", "X9DR7/E-(J)LN4F", "X9DR3-F", "X9DRW"
-    unit = "1"
-    speed = "115200"
-  else
-    unit = "0"
-    speed = "115200"
-  end
-when "IBM"
-  unit = "0"
-  speed = "115200"
-end
-
-if manufacturer == "HP" && node[:lsb][:release].to_f > 11.10
-  include_recipe "git"
 
-  git "/opt/hp/hp-legacy" do
-    action :sync
-    repository "git://chef.openstreetmap.org/hp-legacy.git"
-    user "root"
-    group "root"
+  package "hp-health" do
+    action :install
+    notifies :restart, "service[hp-health]"
   end
 
-  link "/opt/hp/hp-health/bin/hpasmd" do
-    to "/opt/hp/hp-legacy/hpasmd"
+  service "hp-health" do
+    action [:enable, :start]
+    supports :status => true, :restart => true
   end
 
-  link "/usr/lib/libhpasmintrfc.so.3.0" do
-    to "/opt/hp/hp-legacy/libhpasmintrfc.so.3.0"
-  end
+  if product.end_with?("Gen8", "Gen9")
+    package "hp-ams" do
+      action :install
+      notifies :restart, "service[hp-ams]"
+    end
 
-  link "/usr/lib/libhpasmintrfc.so.3" do
-    to "libhpasmintrfc.so.3.0"
+    service "hp-ams" do
+      action [:enable, :start]
+      supports :status => true, :restart => true
+    end
   end
 
-  link "/usr/lib/libhpasmintrfc.so" do
-    to "libhpasmintrfc.so.3.0"
-  end
-end
+  units << "1"
+when "TYAN"
+  units << "0"
+when "TYAN Computer Corporation"
+  units << "0"
+when "Supermicro"
+  units << "1"
+when "IBM"
+  units << "0"
+when "VMware, Inc."
+  package "open-vm-tools"
 
-unless unit.nil?
-  file "/etc/init/ttySttyS#{unit}.conf" do
+  # Remove timeSync plugin completely
+  # https://github.com/vmware/open-vm-tools/issues/302
+  file "/usr/lib/open-vm-tools/plugins/vmsvc/libtimeSync.so" do
     action :delete
+    notifies :restart, "service[open-vm-tools]"
   end
 
-  template "/etc/init/ttyS#{unit}.conf" do
-    source "tty.conf.erb"
-    owner "root"
-    group "root"
-    mode 0644
-    variables :unit => unit, :speed => speed
+  # Attempt to tell Host we are not interested in timeSync
+  execute "vmware-toolbox-cmd-timesync-disable" do
+    command "/usr/bin/vmware-toolbox-cmd timesync disable"
+    ignore_failure true
   end
 
-  service "ttyS#{unit}" do
-    provider Chef::Provider::Service::Upstart
+  service "open-vm-tools" do
     action [:enable, :start]
-    supports :status => true, :restart => true, :reload => false
-    subscribes :restart, "template[/etc/init/ttyS#{unit}.conf]"
+    supports :status => true, :restart => true
   end
 end
 
+units.sort.uniq.each do |unit|
+  service "serial-getty@ttyS#{unit}" do
+    action [:enable, :start]
+  end
+end
+
+# if we need a different / special kernel version to make the hardware
+# work (e.g: https://github.com/openstreetmap/operations/issues/45) then
+# ensure that we have the package installed. the grub template will
+# make sure that this is the default on boot.
+if node[:hardware][:grub][:kernel]
+  kernel_version = node[:hardware][:grub][:kernel]
+
+  package "linux-image-#{kernel_version}-generic"
+  package "linux-image-extra-#{kernel_version}-generic"
+  package "linux-headers-#{kernel_version}-generic"
+  package "linux-tools-#{kernel_version}-generic"
+
+  boot_device = IO.popen(["df", "/boot"]).readlines.last.split.first
+  boot_uuid = IO.popen(["blkid", "-o", "value", "-s", "UUID", boot_device]).readlines.first.chomp
+  grub_entry = "gnulinux-advanced-#{boot_uuid}>gnulinux-#{kernel_version}-advanced-#{boot_uuid}"
+else
+  grub_entry = "0"
+end
+
 if File.exist?("/etc/default/grub")
   execute "update-grub" do
     action :nothing
     command "/usr/sbin/update-grub"
+    not_if { ENV["TEST_KITCHEN"] }
   end
 
   template "/etc/default/grub" do
     source "grub.erb"
     owner "root"
     group "root"
-    mode 0644
-    variables :unit => unit, :speed => speed
+    mode "644"
+    variables :units => units, :entry => grub_entry
     notifies :run, "execute[update-grub]"
   end
 end
@@ -144,7 +165,7 @@ template "/etc/initramfs-tools/conf.d/mdadm" do
   source "initramfs-mdadm.erb"
   owner "root"
   group "root"
-  mode 0644
+  mode "644"
   notifies :run, "execute[update-initramfs]"
 end
 
@@ -155,67 +176,77 @@ end
 
 if node[:kernel][:modules].include?("ipmi_si")
   package "ipmitool"
+  package "freeipmi-tools"
+
+  prometheus_exporter "ipmi" do
+    port 9290
+  end
 end
 
-if node[:lsb][:release].to_f >= 12.10
-  package "irqbalance"
+package "irqbalance"
 
-  template "/etc/default/irqbalance" do
-    source "irqbalance.erb"
-    owner "root"
-    group "root"
-    mode 0644
-  end
+service "irqbalance" do
+  action [:start, :enable]
+  supports :status => false, :restart => true, :reload => false
+end
 
-  service "irqbalance" do
-    action [:start, :enable]
-    supports :status => false, :restart => true, :reload => false
-    subscribes :restart, "template[/etc/default/irqbalance]"
-  end
+# Link Layer Discovery Protocol Daemon
+package "lldpd"
+service "lldpd" do
+  action [:start, :enable]
+  supports :status => true, :restart => true, :reload => true
 end
 
 tools_packages = []
 status_packages = {}
 
-node[:kernel][:modules].each_key do |modname|
-  case modname
-  when "cciss"
-    tools_packages << "hpacucli"
-    status_packages["cciss-vol-status"] ||= []
-  when "hpsa"
-    tools_packages << "hpacucli"
-    status_packages["cciss-vol-status"] ||= []
-  when "mptsas"
-    tools_packages << "lsiutil"
-    # status_packages["mpt-status"] ||= []
-  when "mpt2sas"
-    tools_packages << "sas2ircu"
-    status_packages["sas2ircu-status"] ||= []
-  when "megaraid_mm"
-    tools_packages << "megactl"
-    status_packages["megaraid-status"] ||= []
-  when "megaraid_sas"
-    tools_packages << "megacli"
-    status_packages["megaclisas-status"] ||= []
-  when "aacraid"
-    tools_packages << "arcconf"
-    status_packages["aacraid-status"] ||= []
+if node[:virtualization][:role] != "guest" ||
+   (node[:virtualization][:system] != "lxc" &&
+    node[:virtualization][:system] != "lxd" &&
+    node[:virtualization][:system] != "openvz")
+
+  node[:kernel][:modules].each_key do |modname|
+    case modname
+    when "cciss"
+      tools_packages << "ssacli"
+      status_packages["cciss-vol-status"] ||= []
+    when "hpsa"
+      tools_packages << "ssacli"
+      status_packages["cciss-vol-status"] ||= []
+    when "mptsas"
+      tools_packages << "lsiutil"
+      status_packages["mpt-status"] ||= []
+    when "mpt2sas", "mpt3sas"
+      tools_packages << "sas2ircu"
+      status_packages["sas2ircu-status"] ||= []
+    when "megaraid_mm"
+      tools_packages << "megactl"
+      status_packages["megaraid-status"] ||= []
+    when "megaraid_sas"
+      tools_packages << "megacli"
+      status_packages["megaclisas-status"] ||= []
+    when "aacraid"
+      tools_packages << "arcconf"
+      status_packages["aacraid-status"] ||= []
+    when "arcmsr"
+      tools_packages << "areca"
+    end
   end
-end
 
-node[:block_device].each do |name, attributes|
-  next unless attributes[:vendor] == "HP" && attributes[:model] == "LOGICAL VOLUME"
+  node[:block_device].each do |name, attributes|
+    next unless attributes[:vendor] == "HP" && attributes[:model] == "LOGICAL VOLUME"
 
-  if name =~ /^cciss!(c[0-9]+)d[0-9]+$/
-    status_packages["cciss-vol-status"] |= ["cciss/#{Regexp.last_match[1]}d0"]
-  else
-    Dir.glob("/sys/block/#{name}/device/scsi_generic/*").each do |sg|
-      status_packages["cciss-vol-status"] |= [File.basename(sg)]
+    if name =~ /^cciss!(c[0-9]+)d[0-9]+$/
+      status_packages["cciss-vol-status"] |= ["cciss/#{Regexp.last_match[1]}d0"]
+    else
+      Dir.glob("/sys/block/#{name}/device/scsi_generic/*").each do |sg|
+        status_packages["cciss-vol-status"] |= [File.basename(sg)]
+      end
     end
   end
 end
 
-%w(hpacucli lsiutil sas2ircu megactl megacli arcconf).each do |tools_package|
+%w[ssacli lsiutil sas2ircu megactl megacli arcconf].each do |tools_package|
   if tools_packages.include?(tools_package)
     package tools_package
   else
@@ -225,7 +256,53 @@ end
   end
 end
 
-["cciss-vol-status", "mpt-status", "sas2ircu-status", "megaraid-status", "megaclisas-status", "aacraid-status"].each do |status_package|
+if tools_packages.include?("areca")
+  include_recipe "git"
+
+  git "/opt/areca" do
+    action :sync
+    repository "https://git.openstreetmap.org/private/areca.git"
+    depth 1
+    user "root"
+    group "root"
+    not_if { ENV["TEST_KITCHEN"] }
+  end
+else
+  directory "/opt/areca" do
+    action :delete
+    recursive true
+  end
+end
+
+if status_packages.include?("cciss-vol-status")
+  template "/usr/local/bin/cciss-vol-statusd" do
+    source "cciss-vol-statusd.erb"
+    owner "root"
+    group "root"
+    mode "755"
+    notifies :restart, "service[cciss-vol-statusd]"
+  end
+
+  systemd_service "cciss-vol-statusd" do
+    description "Check cciss_vol_status values in the background"
+    exec_start "/usr/local/bin/cciss-vol-statusd"
+    private_tmp true
+    protect_system "full"
+    protect_home true
+    no_new_privileges true
+    notifies :restart, "service[cciss-vol-statusd]"
+  end
+else
+  systemd_service "cciss-vol-statusd" do
+    action :delete
+  end
+
+  template "/usr/local/bin/cciss-vol-statusd" do
+    action :delete
+  end
+end
+
+%w[cciss-vol-status mpt-status sas2ircu-status megaraid-status megaclisas-status aacraid-status].each do |status_package|
   if status_packages.include?(status_package)
     package status_package
 
@@ -233,7 +310,7 @@ end
       source "raid.default.erb"
       owner "root"
       group "root"
-      mode 0644
+      mode "644"
       variables :devices => status_packages[status_package]
     end
 
@@ -253,98 +330,187 @@ end
   end
 end
 
-disks = []
+disks = if node[:hardware][:disk]
+          node[:hardware][:disk][:disks]
+        else
+          []
+        end
 
-node[:block_device].each do |name, attributes|
-  disks << { :device => name } if attributes[:vendor] == "ATA"
-end
+intel_ssds = disks.select { |d| d[:vendor] == "INTEL" && d[:model] =~ /^SSD/ }
 
-if status_packages["cciss-vol-status"]
-  status_packages["cciss-vol-status"].each do |device|
-    IO.popen(["cciss_vol_status", "-V", "/dev/#{device}"]).each do |line|
-      disks << { :device => device, :driver => "cciss", :id => Regexp.last_match[1].to_i - 1 } if line =~ / bay ([0-9]+) +HP /
-    end
-  end
-end
+nvmes = if node[:hardware][:pci]
+          node[:hardware][:pci].values.select { |pci| pci[:driver] == "nvme" }
+        else
+          []
+        end
 
-if status_packages["megaclisas-status"]
-  controller = 0
+intel_nvmes = nvmes.select { |pci| pci[:vendor_name] == "Intel Corporation" }
 
-  Dir.glob("/sys/class/scsi_host/host*") do |host|
-    driver = File.new("#{host}/proc_name").read.chomp
+if !intel_ssds.empty? || !intel_nvmes.empty?
+  package "unzip"
 
-    next unless driver == "megaraid_sas"
+  intel_mas_tool_version = "1.4"
+  intel_mas_package_version = "#{intel_mas_tool_version}.102-0"
 
-    bus = host.sub("/sys/class/scsi_host/host", "")
-    device = File.basename(Dir.glob("/sys/bus/scsi/devices/#{bus}:*/scsi_generic/*").first)
+  remote_file "#{Chef::Config[:file_cache_path]}/Intel_MAS_CLI_Tool_#{intel_mas_tool_version}_Linux.zip" do
+    source "https://downloadmirror.intel.com/30059/eng/Intel%C2%AE_MAS_CLI_Tool_Linux.zip"
+  end
 
-    IO.popen(["megacli", "-PDList", "-a#{controller}", "-NoLog"]).each do |line|
-      disks << { :device => device, :driver => "megaraid",  :id => Regexp.last_match[1] } if line =~ /^Device Id: ([0-9]+)$/
+  execute "#{Chef::Config[:file_cache_path]}/Intel_MAS_CLI_Tool_#{intel_mas_tool_version}_Linux.zip" do
+    command "unzip Intel_MAS_CLI_Tool_#{intel_mas_tool_version}_Linux.zip intelmas_#{intel_mas_package_version}_amd64.deb"
+    cwd Chef::Config[:file_cache_path]
+    user "root"
+    group "root"
+    not_if { ::File.exist?("#{Chef::Config[:file_cache_path]}/intelmas_#{intel_mas_package_version}_amd64.deb") }
+  end
 
-      disks.pop if line =~ /^Firmware state: Hotspare, Spun down$/
-    end
+  dpkg_package "intelmas" do
+    version "#{intel_mas_package_version}"
+    source "#{Chef::Config[:file_cache_path]}/intelmas_#{intel_mas_package_version}_amd64.deb"
+  end
 
-    controller += 1
+  dpkg_package "isdct" do
+    action :purge
   end
 end
 
-if status_packages["sas2ircu-status"]
-  Dir.glob("/sys/class/scsi_host/host*") do |host|
-    driver = File.new("#{host}/proc_name").read.chomp
-
-    next unless driver == "mpt2sas"
-
-    bus = host.sub("/sys/class/scsi_host/host", "")
-
-    Dir.glob("/sys/bus/scsi/devices/#{bus}:0:*/scsi_generic/*").each do |sg|
-      disks << { :device => File.basename(sg) }
+disks = disks.map do |disk|
+  next if disk[:state] == "spun_down" || %w[unconfigured failed].any?(disk[:status])
+
+  if disk[:smart_device]
+    controller = node[:hardware][:disk][:controllers][disk[:controller]]
+
+    if controller && controller[:device]
+      device = controller[:device].sub("/dev/", "")
+      smart = disk[:smart_device]
+
+      if device.start_with?("cciss/") && smart =~ /^cciss,(\d+)$/
+        array = node[:hardware][:disk][:arrays][disk[:arrays].first]
+        munin = "cciss-3#{array[:wwn]}-#{Regexp.last_match(1)}"
+      elsif smart =~ /^.*,(\d+)$/
+        munin = "#{device}-#{Regexp.last_match(1)}"
+      elsif smart =~ %r{^.*,(\d+)/(\d+)$}
+        munin = "#{device}-#{Regexp.last_match(1)}:#{Regexp.last_match(2)}"
+      end
+    elsif disk[:device]
+      device = disk[:device].sub("/dev/", "")
+      smart = disk[:smart_device]
+
+      if smart =~ /^.*,(\d+),(\d+),(\d+)$/
+        munin = "#{device}-#{Regexp.last_match(1)}:#{Regexp.last_match(2)}:#{Regexp.last_match(3)}"
+      end
     end
-  end
+  elsif disk[:device] =~ %r{^/dev/(nvme\d+)n\d+$}
+    device = Regexp.last_match(1)
+    munin = device
+  elsif disk[:device]
+    device = disk[:device].sub("/dev/", "")
+    munin = device
+  end
+
+  next if device.nil?
+
+  Hash[
+    :device => device,
+    :smart => smart,
+    :munin => munin,
+    :hddtemp => munin.tr("-:", "_")
+  ]
 end
 
-if status_packages["aacraid-status"]
-  Dir.glob("/sys/class/scsi_host/host*") do |host|
-    driver = File.new("#{host}/proc_name").read.chomp
+disks = disks.compact.uniq
 
-    next unless driver == "aacraid"
-
-    bus = host.sub("/sys/class/scsi_host/host", "")
+if disks.count.positive?
+  package "smartmontools"
 
-    Dir.glob("/sys/bus/scsi/devices/#{bus}:1:*/scsi_generic/*").each do |sg|
-      disks << { :device => File.basename(sg) }
-    end
+  template "/etc/cron.daily/update-smart-drivedb" do
+    source "update-smart-drivedb.erb"
+    owner "root"
+    group "root"
+    mode "755"
   end
-end
 
-if disks.count > 0
-  package "smartmontools"
+  template "/usr/local/bin/smartd-mailer" do
+    source "smartd-mailer.erb"
+    owner "root"
+    group "root"
+    mode "755"
+  end
 
   template "/etc/smartd.conf" do
     source "smartd.conf.erb"
     owner "root"
     group "root"
-    mode 0644
+    mode "644"
     variables :disks => disks
-    notifies :reload, "service[smartmontools]"
   end
 
   template "/etc/default/smartmontools" do
     source "smartmontools.erb"
     owner "root"
     group "root"
-    mode 0644
-    notifies :restart, "service[smartmontools]"
+    mode "644"
   end
 
   service "smartmontools" do
     action [:enable, :start]
+    subscribes :reload, "template[/etc/smartd.conf]"
+    subscribes :restart, "template[/etc/default/smartmontools]"
+  end
+
+  template "/etc/prometheus/collectors/smart.devices" do
+    source "smart.devices.erb"
+    owner "root"
+    group "root"
+    mode "644"
+    variables :disks => disks
+  end
+
+  prometheus_collector "smart" do
+    interval "15m"
+  end
+
+  # Don't try and do munin monitoring of disks behind
+  # an Areca controller as they only allow one thing to
+  # talk to the controller at a time and smartd will
+  # throw errors if it clashes with munin
+  disks = disks.reject { |disk| disk[:smart]&.start_with?("areca,") }
+
+  disks.each do |disk|
+    munin_plugin "smart_#{disk[:munin]}" do
+      target "smart_"
+      conf "munin.smart.erb"
+      conf_variables :disk => disk
+    end
   end
 else
-  service "smartmontools" do
+  service "smartd" do
     action [:stop, :disable]
   end
 end
 
+if disks.count.positive?
+  munin_plugin "hddtemp_smartctl" do
+    conf "munin.hddtemp.erb"
+    conf_variables :disks => disks
+  end
+else
+  munin_plugin "hddtemp_smartctl" do
+    action :delete
+    conf "munin.hddtemp.erb"
+  end
+end
+
+plugins = Dir.glob("/etc/munin/plugins/smart_*").map { |p| File.basename(p) } -
+          disks.map { |d| "smart_#{d[:munin]}" }
+
+plugins.each do |plugin|
+  munin_plugin plugin do
+    action :delete
+    conf "munin.smart.erb"
+  end
+end
+
 if File.exist?("/etc/mdadm/mdadm.conf")
   mdadm_conf = edit_file "/etc/mdadm/mdadm.conf" do |line|
     line.gsub!(/^MAILADDR .*$/, "MAILADDR admins@openstreetmap.org")
@@ -355,7 +521,7 @@ if File.exist?("/etc/mdadm/mdadm.conf")
   file "/etc/mdadm/mdadm.conf" do
     owner "root"
     group "root"
-    mode 0644
+    mode "644"
     content mdadm_conf
   end
 
@@ -369,21 +535,12 @@ template "/etc/modules" do
   source "modules.erb"
   owner "root"
   group "root"
-  mode 0644
+  mode "644"
 end
 
-if node[:lsb][:release].to_f <= 12.10
-  service "module-init-tools" do
-    provider Chef::Provider::Service::Upstart
-    action :nothing
-    subscribes :start, "template[/etc/modules]"
-  end
-else
-  service "kmod" do
-    provider Chef::Provider::Service::Upstart
-    action :nothing
-    subscribes :start, "template[/etc/modules]"
-  end
+service "kmod" do
+  action :nothing
+  subscribes :start, "template[/etc/modules]"
 end
 
 if node[:hardware][:watchdog]
@@ -393,7 +550,7 @@ if node[:hardware][:watchdog]
     source "watchdog.erb"
     owner "root"
     group "root"
-    mode 0644
+    mode "644"
     variables :module => node[:hardware][:watchdog]
   end
 
@@ -405,6 +562,30 @@ end
 unless Dir.glob("/sys/class/hwmon/hwmon*").empty?
   package "lm-sensors"
 
+  Dir.glob("/sys/devices/platform/coretemp.*").each do |coretemp|
+    cpu = File.basename(coretemp).sub("coretemp.", "").to_i
+    chip = format("coretemp-isa-%04d", cpu)
+
+    temps = if File.exist?("#{coretemp}/name")
+              Dir.glob("#{coretemp}/temp*_input").map do |temp|
+                File.basename(temp).sub("temp", "").sub("_input", "").to_i
+              end.sort
+            else
+              Dir.glob("#{coretemp}/hwmon/hwmon*/temp*_input").map do |temp|
+                File.basename(temp).sub("temp", "").sub("_input", "").to_i
+              end.sort
+            end
+
+    if temps.first == 1
+      node.default[:hardware][:sensors][chip][:temps][:temp1][:label] = "CPU #{cpu}"
+      temps.shift
+    end
+
+    temps.each_with_index do |temp, index|
+      node.default[:hardware][:sensors][chip][:temps]["temp#{temp}"][:label] = "CPU #{cpu} Core #{index}"
+    end
+  end
+
   execute "/etc/sensors.d/chef.conf" do
     action :nothing
     command "/usr/bin/sensors -s"
@@ -416,7 +597,24 @@ unless Dir.glob("/sys/class/hwmon/hwmon*").empty?
     source "sensors.conf.erb"
     owner "root"
     group "root"
-    mode 0644
+    mode "644"
     notifies :run, "execute[/etc/sensors.d/chef.conf]"
   end
 end
+
+if node[:hardware][:shm_size]
+  execute "remount-dev-shm" do
+    action :nothing
+    command "/bin/mount -o remount /dev/shm"
+    user "root"
+    group "root"
+  end
+
+  mount "/dev/shm" do
+    action :enable
+    device "tmpfs"
+    fstype "tmpfs"
+    options "rw,nosuid,nodev,size=#{node[:hardware][:shm_size]}"
+    notifies :run, "execute[remount-dev-shm]"
+  end
+end