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@gwollman
gwollman committed Dec 7, 2012
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26 changes: 26 additions & 0 deletions LICENSE
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Copyright 2012 Massachusetts Institute of Technology

Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that both the above copyright notice and this
permission notice appear in all copies, that both the above
copyright notice and this permission notice appear in all
supporting documentation, and that the name of M.I.T. not be used
in advertising or publicity pertaining to distribution of the
software without specific, written prior permission. M.I.T. makes
no representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.

THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
96 changes: 96 additions & 0 deletions lib/facter/megaraid.rb
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# Figure out if this machine has AMI/LSI MegaRAID aka Dell PERC
# storage controllers, and if so, how many physical disks are
# attached. Currently implemented only on Linux because none of
# our FreeBSD machines use these controllers, so I don't have an
# example "mfiutil show config" to write a parser for and test
# against.
def megacli_usable?
(File.writable?('/dev/megaraid_sas_ioctl_node') or
File.writable?('/dev/megadev0')) and
Facter::Util::Resolution.which('MegaCli')
end

Facter.add(:megaraid_physical_drives) do
confine :kernel => [ :Linux ]
setcode do
pds = []
if megacli_usable?
list = Facter::Util::Resolution.exec('MegaCli -PDList -aALL')
list.each_line do |line|
if line =~ /^Device Id:\s+(\d+)/
pds.push($1)
end
end
end
pds.join(",")
end
end

Facter.add(:megaraid_adapters) do
confine :kernel => [ :Linux ]
setcode do
if megacli_usable?
count = Facter::Util::Resolution.exec('MegaCli -adpCount 2>&1')
count =~ /Controller Count:\s+(\d+)\./ ? $1 : '0'
else
nil
end
end
end

# Try to figure out what should be used as the "device" parameter
# for smartd. On FreeBSD it's simple, just use /dev/mfi%d, but
# on Linux we have to find a block device that corresponds to a
# *logical* drive on the controller. Any logical drive will do,
# so long as it's on the same controller. We only support one
# controller for now. If smartmontools is not already installed,
# it will take two Puppet runs to determine this.
Facter.add(:megaraid_smartd_device_name) do
confine :kernel => [ :Linux ]
setcode do
device = nil
if smartctl = Facter::Util::Resolution.which('smartctl')
out = Facter::Util::Resolution.exec(smartctl + ' --scan-open 2>&1')
out.each_line do |line|
if line =~ /open failed: DELL or MegaRaid controller/
device = (line.split(/\s+/))[0]
end
end
end
device
end
end

# If this were implemented on FreeBSD, you would have two separate
# implementations: one that uses MegaCli (possibly under Linux emulation)
# for amr(4) controllers, and one that uses mfiutil(8) for mfi(4)
# controllers.
#Facter.add(:megaraid_physical_drives) do
# confine :kernel => [ :FreeBSD ]
# setcode do
# pds = []
# mfiutil = Facter::Util::Resolution.which('mfiutil')
# if File.writable?('/dev/mfi0') and mfiutil
# list = Facter::Util::Resolution.exec(mfiutil + ' show config'
# # do something here
# end
# pds.join(",")
# end
#end

Facter.add(:megaraid_adapters) do
confine :kernel => [ :FreeBSD ]
setcode do
Dir.glob('/dev/mfi[0-9]*').size + Dir.glob('/dev/amr[0-9]*').size
end
end

# I don't know if smartmontools even supports talking to this
# interface, but assume that it works like HPTRR and similar
# hardware RAID controllers. Only one controller is supported.
Facter.add(:megaraid_smartd_device_name) do
confine :kernel => [ :FreeBSD ]
setcode do
(Dir.glob('/dev/mfi[0-9]*') + Dir.glob('/dev/amr[0-9]*'))[0]
end
end
20 changes: 20 additions & 0 deletions manifests/defaults.pp
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class smartd::defaults {
$autoupdate = false
$package_name = 'smartmontools'
$service_name = 'smartd'
$scan = true
$devices = []
$device_opts = {}
$mail_to = 'root'
$schedule = 'daily' # other choices: once, diminishing

case $::osfamily {
'FreeBSD': {
$config_file = '/usr/local/etc/smartd.conf'
}
'Debian': {
$config_file = '/etc/smartd.conf'
}
default: { fail("smartd: unsupported OS family ${::osfamily}}") }
}
}
73 changes: 73 additions & 0 deletions manifests/init.pp
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class smartd ($ensure = 'present',
$autoupdate = $smartd::defaults::autoupdate,
$package_name = $smartd::defaults::package_name,
$service_name = $smartd::defaults::service_name,
$config_file = $smartd::defaults::config_file,
$scan = $smartd::defaults::scan,
$devices = $smartd::defaults::devices,
$device_opts = $smartd::defaults::device_opts,
$mail_to = $smartd::defaults::mail_to,
$schedule = $smartd::defaults::schedule,
) inherits smartd::defaults {
case $ensure {
'present': {
if $autoupdate {
$pkg_ensure = 'latest'
} else {
$pkg_ensure = 'present'
}
$svc_ensure = 'running'
$svc_enable = true
$file_ensure = 'present'
}
'absent': {
$pkg_ensure = 'absent'
$svc_ensure = 'stopped'
$svc_enable = false
$file_ensure = 'absent'
}
'purged': {
$pkg_ensure = 'purged'
$svc_ensure = 'stopped'
$svc_enable = false
$file_ensure = 'absent'
}
}

package {$package_name:
ensure => $pkg_ensure,
} -> service {$service_name:
ensure => $svc_ensure,
enable => $svc_enable,
hasrestart => true,
}

file {$config_file:
ensure => $file_present,
owner => root,
group => 0,
mode => 0644,
content => template('smartd/smartd.conf'),
require => Package[$package_name],
before => Service[$service_name],
}

# Special sauce for Debian where it's not enough for the rc script
# to be enabled, it also needs its own extra special config file.
if $::osfamily == 'Debian' {
shell_config {'start_smartd':
file => '/etc/default/smartmontools',
key => 'start_smartd',
value => 'yes',
ensure => $file_ensure,
before => Service[$service_name],
}
}

# Let monit monitor smartd, if configured.
@monit::monitor {$service_name:
pidfile => "/var/run/${service_name}.pid",
ensure => $file_present,
tag => 'default',
}
}
25 changes: 25 additions & 0 deletions templates/smartd.conf
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# Managed by Puppet -- do not edit!
DEFAULT -m <%= @mail_to %> -M <%= @schedule %>
<% if @scan -%>
DEVICESCAN
<% end -%>
<% @devices.each do |device| -%>
<%= device -%>
<% if @device_opts.has_key?(device) -%>
<%= @device_opts[device] -%>
<% end #newline here, please %>
<% end -%>
<% megaraid_adapters = scope.lookupvar('::megaraid_adapters')
megaraid_device = scope.lookupvar('::megaraid_smartd_device_name')
megaraid_drives = scope.lookupvar('::megaraid_physical_drives')
megaraid_drives = megaraid_drives.nil? ? [] : megaraid_drives.split(/,/)

if megaraid_device and megaraid_device != '' and
megaraid_adapters and megaraid_adapters.to_i > 0 -%>
<% megaraid_drives.each do |drive| -%>
<%= megaraid_device %> -d megaraid,<%= megaraid_drives.to_i -%>
<% if @device_opts.has_key?('megaraid') -%>
<%= @device_opts['megaraid'] -%>
<% end #newline here, please %>
<% end -%>
<% end -%>

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