Add check_smartmon for checking S.M.A.R.T. status.

lib/facter/nagios_smartmon.rb

@@ -0,0 +1,191 @@
+# This facter script adds the fact "nagios_smartmon" and puts there the hash
+# that contain information about connected disks, controllers, their ports, etc.
+# This information could be passed to the smartctl utility for checking the
+# SMART status.
+#
+# Example of hashes:
+#
+# The SATA disks attached directly
+# {
+#   0=>{"dev"=>"sda", "controller"=>"ata"},
+#   1=>{"dev"=>"sdb", "controller"=>"ata"}
+# }
+#
+# The SATA disk connected to the LSI MegaRAID controller
+# {
+#   5=>{"interface"=>"SATA", "controller"=>"megaraid", "port"=>"1", "dev"=>"sda"},
+#   0=>{"interface"=>"SATA", "controller"=>"megaraid", "port"=>"2", "dev"=>"sda"},
+#   1=>{"interface"=>"SATA", "controller"=>"megaraid", "port"=>"0", "dev"=>"sda"},
+#   2=>{"interface"=>"SATA", "controller"=>"megaraid", "port"=>"3", "dev"=>"sda"},
+#   3=>{"interface"=>"SATA", "controller"=>"megaraid", "port"=>"4", "dev"=>"sda"},
+#   4=>{"interface"=>"SATA", "controller"=>"megaraid", "port"=>"5", "dev"=>"sda"}
+# }
+#
+# The SATA disk connected to the LSI MegaRAID controller
+# {0=>{"dev"=>"sda", "interface"=>"SAS", "port"=>"8", "controller"=>"megaraid"}}
+
+
+# Check if the RAID controller utility is present and get the full path to it.
+def getRaidUtil(utilNames)
+  raidUtil = nil
+
+  utilNames.each do |name|
+    if FileTest.exists?(name)
+      raidUtil = name
+    end
+  end
+
+  return raidUtil
+end
+
+# Controller megaraid
+def getPhysicalDisksPorts_megaraid
+  # List of possible names of RAID utility
+  utilNames = [
+    '/usr/sbin/megacli',
+    '/usr/sbin/MegaCli',
+    '/usr/sbin/MegaCli64'
+  ]
+
+  # Get the full path to RAID utility
+  raidUtil = getRaidUtil(utilNames)
+
+  # Check the connected ports only if the RAID utility is present.
+  if raidUtil
+
+    # Get the list of connected ports.
+    physicalDisksPorts = Facter::Core::Execution.exec("#{raidUtil} -PDList -Aall | awk '/Device\ Id/{print $3}'")
+    return physicalDisksPorts
+
+  # Else return nil
+  else
+    return nil
+  end
+end
+
+# This method checks the interface to which the disk is connected.
+# This needed with the MegaRAID controllers in CentOS 6. The smartctl 5.43
+# requires the "sat+megaraid,N" in case of SATA disk and just "megaraid,N" in
+# case of SAS.
+def checkDiskInterface(port)
+  # List of possible names of RAID utility
+  utilNames = [
+    '/usr/sbin/megacli',
+    '/usr/sbin/MegaCli',
+    '/usr/sbin/MegaCli64'
+  ]
+
+  # Get the full path to RAID utility
+  raidUtil = getRaidUtil(utilNames)
+
+  # Get the disk interface (SATA/SAS)
+  diskInterface = Facter::Core::Execution.exec("#{raidUtil} -PDList -aALL | grep -e '^Device Id: #{port}' -A 10 | awk '/PD Type:/{print $3}'")
+end
+
+
+# Controller hpsa
+def getPhysicalDisksPorts_cciss
+  # List of possible names of RAID utility
+  utilNames = [
+    '/usr/sbin/hpssacli',
+    '/usr/sbin/hpacucli'
+  ]
+
+  # Get the full path to RAID utility
+  raidUtil = getRaidUtil(utilNames)
+
+  # Check the connected ports only if the RAID utility is present.
+  if raidUtil
+
+    # Get slot of SmartArray controller. This required for checking the connected ports.
+    hpsaSlot = Facter::Core::Execution.exec("#{raidUtil} controller all show status | awk '/Slot/{print $6}'")
+
+    # Get the list of connected ports.
+    physicalDisksPorts = Facter::Core::Execution.exec("#{raidUtil} controller slot=#{hpsaSlot} physicaldrive all show status | awk '/bay/{ gsub(\",\",\"\"); print (\$6-1)}'")
+    return physicalDisksPorts
+
+  # Else return the nil
+  else
+    return nil
+  end
+end
+
+# Get the list of connected disks and their attributes (name, port, interface).
+def getDisks (controller)
+
+  # Get the list of block devices and transform it to string divided by comma.
+  blockdevices = Facter.value(:blockdevices).split(",")
+
+  # Delete the CD-drive from array of blockdevices.
+  # TODO: delete all CD-drives (sr*) and virtualdrives (vd*)
+  blockdevices.delete('sr0')
+
+  disks = {}
+  diskInterface = nil
+
+  # Controller "ata" in smartmontools terminology means that there is no any
+  # hardware RAID controllers and disks are connected directly to the (S)ATA
+  # ports
+  if controller == "ata"
+    i = 0
+
+    # Add all blockdevices to the "disks" array.
+    blockdevices.each do |blockdevice|
+      disks[i] = {
+        "dev"        => blockdevice,
+        "controller" => controller
+      }
+      i += 1
+    end
+  else
+
+    # Check the connected ports using the RAID controller utility (if present)
+    ports = send("getPhysicalDisksPorts_#{controller}").split("\n")
+
+    # If controller returned the list of non-empty ports then fill the "disks"
+    # array. In other case do not add elements to array. This means that there
+    # is no RAID controller utility and there is no way to check to which ports
+    # disks are connected.
+    if ports
+      i = 0
+
+      # Add all connected to RAID controller disks as separate devices to the
+      # "disks" array. The smartctl requires the blockdevice for cheching the
+      # SMART status. Let's pass the first blockdevice what we have to the
+      # smartctl utility.
+      ports.each do |port|
+
+        # For the LSI MegaRAID controller we have to check the interface of the
+        # disk. It may be SAS or SATA
+        if controller == "megaraid"
+          diskInterface = checkDiskInterface(port)
+        end
+
+        disks[i] = {
+          "dev"        => blockdevices[0],
+          "controller" => controller,
+          "port"       => port,
+          "interface"  => diskInterface
+        }
+        i += 1
+      end
+    end
+  end
+
+  return disks
+end
+
+Facter.add(:nagios_smartmon) do
+  setcode do
+    # Check if there is LSI MegaRAID controller
+    if Facter.value(:nagios_pci_megaraid_sas)
+      getDisks("megaraid")
+    # Check if there is HP SmartArray controller
+    elsif Facter.value(:nagios_pci_hpsa)
+      getDisks("cciss")
+    # Else use the "ata" driver
+    else
+      getDisks("ata")
+    end
+  end
+end

manifests/check/smartmon.pp

@@ -0,0 +1,49 @@
+class nagios::check::smartmon (
+  $package                  = "smartmontools",
+  $ensure                   = undef,
+  $args                     = '',
+  $check_title              = $::nagios::client::host_name,
+  $servicegroups            = undef,
+  $check_period             = $::nagios::client::service_check_period,
+  $contact_groups           = $::nagios::client::service_contact_groups,
+  $first_notification_delay = $::nagios::client::first_notification_delay,
+  $max_check_attempts       = $::nagios::client::service_max_check_attempts,
+  $notification_period      = $::nagios::client::service_notification_period,
+  $use                      = $::nagios::client::service_use,
+) {
+
+  # Service specific script, taken from:
+  file { "${nagios::client::plugin_dir}/check_smartmon":
+    ensure  => $ensure,
+    owner   => 'root',
+    group   => 'root',
+    mode    => '0755',
+    content => template("${module_name}/plugins/check_smartmon"),
+  }
+
+  # The check is being executed via sudo
+  file { "/etc/sudoers.d/nagios_check_smartmon":
+    ensure => $ensure,
+    owner  => 'root',
+    group  => 'root',
+    mode   => '0440',
+    # We customize the user, the nagios plugin dir and few other things
+    content => template("${module_name}/plugins/smartmon-sudoers.erb"),
+  }
+
+  ensure_packages($package)
+
+  nagios::client::nrpe_file { "check_smartmon":
+    ensure => $ensure,
+    plugin => "check_smartmon",
+    args   => '-d /dev/$ARG1$ -i $ARG2$',
+  }
+
+  $disks = $::nagios_smartmon
+  $defaults = {
+    ensure => $ensure,
+  }
+  # Generate resources for each physical disk
+  create_resources(nagios::check::smartmon::disk, $disks, $defaults)
+
+}

manifests/client.pp

@@ -172,6 +172,9 @@
       }
     }
     if $::nagios_postgres {         class { '::nagios::check::postgres': } }
+    if $::nagios_smartmon and ($::is_virtual != true) {
+      class { '::nagios::check::smartmon': }
+    }
   }
 
   # With selinux, some nrpe plugins require additional rules to work

manifests/server.pp

@@ -819,6 +819,9 @@
   nagios_command {'check_nrpe_mountpoints':
     command_line => "${nrpe} -c check_mountpoints",
   }
+  nagios_command {'check_nrpe_smartmon':
+    command_line => "${nrpe} -c check_smartmon -a \$ARG1\$ \$ARG2\$",
+  }
 
   # Nagios contacts and contactgroups
   # Taken from contacts.cfg