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# GlusterFS module by James
# Copyright (C) 2010-2013+ James Shubin
# Written by James Shubin <james@shubin.ca>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
require 'facter'
# TODO: the ruby uuid method can be used when newer ruby versions are used here
# require 'securerandom'
# SecureRandom.uuid
# uuid regexp
regexp = /^[a-f0-9]{8}\-[a-f0-9]{4}\-[a-f0-9]{4}\-[a-f0-9]{4}\-[a-f0-9]{12}$/
# find the module_vardir
dir = Facter.value('puppet_vardirtmp') # nil if missing
if dir.nil? # let puppet decide if present!
dir = Facter.value('puppet_vardir')
if dir.nil?
var = nil
else
var = dir.gsub(/\/$/, '')+'/'+'tmp/' # ensure trailing slash
end
else
var = dir.gsub(/\/$/, '')+'/'
end
if var.nil?
# if we can't get a valid vardirtmp, then we can't continue
uuidfile = nil
else
module_vardir = var+'gluster/'
uuiddir = module_vardir+'uuid/' # safe dir that won't get purged...
uuidfile = uuiddir+'uuid'
end
# NOTE: module specific mkdirs, needed to ensure there is no blocking/deadlock!
if not(var.nil?) and not File.directory?(var)
Dir::mkdir(var)
end
if not(module_vardir.nil?) and not File.directory?(module_vardir)
Dir::mkdir(module_vardir)
end
if not(uuiddir.nil?) and not File.directory?(uuiddir)
Dir::mkdir(uuiddir)
end
# generate uuid and parent directory if they don't already exist...
if not(module_vardir.nil?) and File.directory?(module_vardir)
if not File.directory?(uuiddir)
Dir::mkdir(uuiddir)
end
# create a uuid and store it in our vardir if it doesn't already exist!
if File.directory?(uuiddir) and (not File.exist?(uuidfile))
result = system("/usr/bin/uuidgen > '" + uuidfile + "'")
if not(result)
# TODO: print warning
end
end
end
# create the fact if the uuid file contains a valid uuid
if not(uuidfile.nil?) and File.exist?(uuidfile)
uuid = File.open(uuidfile, 'r').read.strip.downcase # read into str
# skip over uuid's of the wrong length or that don't match (security!!)
if uuid.length == 36 and regexp.match(uuid)
Facter.add('gluster_uuid') do
#confine :operatingsystem => %w{CentOS, RedHat, Fedora}
setcode {
# don't reuse uuid variable to avoid bug #:
# http://projects.puppetlabs.com/issues/22455
uuid
}
end
# TODO: print warning on else...
end
end
# create facts from externally collected uuid files
_uuid = ''
found = {}
prefix = 'uuid_'
if not(uuiddir.nil?) and File.directory?(uuiddir)
Dir.glob(uuiddir+prefix+'*').each do |f|
b = File.basename(f)
# strip off leading prefix
fqdn = b[prefix.length, b.length-prefix.length]
_uuid = File.open(f, 'r').read.strip.downcase # read into str
if _uuid.length == 36 and regexp.match(_uuid)
# avoid: http://projects.puppetlabs.com/issues/22455
found[fqdn] = _uuid
# TODO: print warning on else...
end
end
end
found.keys.each do |x|
Facter.add('gluster_uuid_'+x) do
#confine :operatingsystem => %w{CentOS, RedHat, Fedora}
setcode {
found[x]
}
end
end
# list of generated gluster_uuid's
Facter.add('gluster_uuid_facts') do
#confine :operatingsystem => %w{CentOS, RedHat, Fedora}
setcode {
found.keys.collect {|x| 'gluster_uuid_'+x }.join(',')
}
end
Facter.add('gluster_fqdns') do
#confine :operatingsystem => %w{CentOS, RedHat, Fedora}
setcode {
found.keys.sort.join(',')
}
end
# vim: ts=8
|
