diff options
| -rw-r--r-- | Gemfile | 11 | ||||
| -rw-r--r-- | lib/facter/facter_dot_d.rb | 202 | ||||
| -rw-r--r-- | spec/unit/facter/pe_required_facts_spec.rb | 69 |
3 files changed, 281 insertions, 1 deletions
@@ -24,7 +24,16 @@ group :development, :test do gem 'rspec-puppet', :require => false end -if puppetversion = ENV['PUPPET_GEM_VERSION'] +facterversion = ENV['GEM_FACTER_VERSION'] +if facterversion + gem 'facter', *location_for(facterversion) +else + gem 'facter', :require => false +end + +ENV['GEM_PUPPET_VERSION'] ||= ENV['PUPPET_GEM_VERSION'] +puppetversion = ENV['GEM_PUPPET_VERSION'] +if puppetversion gem 'puppet', *location_for(puppetversion) else gem 'puppet', :require => false diff --git a/lib/facter/facter_dot_d.rb b/lib/facter/facter_dot_d.rb new file mode 100644 index 0000000..e414b20 --- /dev/null +++ b/lib/facter/facter_dot_d.rb @@ -0,0 +1,202 @@ +# A Facter plugin that loads facts from /etc/facter/facts.d +# and /etc/puppetlabs/facter/facts.d. +# +# Facts can be in the form of JSON, YAML or Text files +# and any executable that returns key=value pairs. +# +# In the case of scripts you can also create a file that +# contains a cache TTL. For foo.sh store the ttl as just +# a number in foo.sh.ttl +# +# The cache is stored in /tmp/facts_cache.yaml as a mode +# 600 file and will have the end result of not calling your +# fact scripts more often than is needed + +class Facter::Util::DotD + require 'yaml' + + def initialize(dir="/etc/facts.d", cache_file="/tmp/facts_cache.yml") + @dir = dir + @cache_file = cache_file + @cache = nil + @types = {".txt" => :txt, ".json" => :json, ".yaml" => :yaml} + end + + def entries + Dir.entries(@dir).reject{|f| f =~ /^\.|\.ttl$/}.sort.map {|f| File.join(@dir, f) } + rescue + [] + end + + def fact_type(file) + extension = File.extname(file) + + type = @types[extension] || :unknown + + type = :script if type == :unknown && File.executable?(file) + + return type + end + + def txt_parser(file) + File.readlines(file).each do |line| + if line =~ /^(.+)=(.+)$/ + var = $1; val = $2 + + Facter.add(var) do + setcode { val } + end + end + end + rescue Exception => e + Facter.warn("Failed to handle #{file} as text facts: #{e.class}: #{e}") + end + + def json_parser(file) + begin + require 'json' + rescue LoadError + retry if require 'rubygems' + raise + end + + JSON.load(File.read(file)).each_pair do |f, v| + Facter.add(f) do + setcode { v } + end + end + rescue Exception => e + Facter.warn("Failed to handle #{file} as json facts: #{e.class}: #{e}") + end + + def yaml_parser(file) + require 'yaml' + + YAML.load_file(file).each_pair do |f, v| + Facter.add(f) do + setcode { v } + end + end + rescue Exception => e + Facter.warn("Failed to handle #{file} as yaml facts: #{e.class}: #{e}") + end + + def script_parser(file) + result = cache_lookup(file) + ttl = cache_time(file) + + unless result + result = Facter::Util::Resolution.exec(file) + + if ttl > 0 + Facter.debug("Updating cache for #{file}") + cache_store(file, result) + cache_save! + end + else + Facter.debug("Using cached data for #{file}") + end + + result.split("\n").each do |line| + if line =~ /^(.+)=(.+)$/ + var = $1; val = $2 + + Facter.add(var) do + setcode { val } + end + end + end + rescue Exception => e + Facter.warn("Failed to handle #{file} as script facts: #{e.class}: #{e}") + Facter.debug(e.backtrace.join("\n\t")) + end + + def cache_save! + cache = load_cache + File.open(@cache_file, "w", 0600) {|f| f.write(YAML.dump(cache)) } + rescue + end + + def cache_store(file, data) + load_cache + + @cache[file] = {:data => data, :stored => Time.now.to_i} + rescue + end + + def cache_lookup(file) + cache = load_cache + + return nil if cache.empty? + + ttl = cache_time(file) + + if cache[file] + now = Time.now.to_i + + return cache[file][:data] if ttl == -1 + return cache[file][:data] if (now - cache[file][:stored]) <= ttl + return nil + else + return nil + end + rescue + return nil + end + + def cache_time(file) + meta = file + ".ttl" + + return File.read(meta).chomp.to_i + rescue + return 0 + end + + def load_cache + unless @cache + if File.exist?(@cache_file) + @cache = YAML.load_file(@cache_file) + else + @cache = {} + end + end + + return @cache + rescue + @cache = {} + return @cache + end + + def create + entries.each do |fact| + type = fact_type(fact) + parser = "#{type}_parser" + + if respond_to?("#{type}_parser") + Facter.debug("Parsing #{fact} using #{parser}") + + send(parser, fact) + end + end + end +end + + +mdata = Facter.version.match(/(\d+)\.(\d+)\.(\d+)/) +if mdata + (major, minor, patch) = mdata.captures.map { |v| v.to_i } + if major < 2 + # Facter 1.7 introduced external facts support directly + unless major == 1 and minor > 6 + Facter::Util::DotD.new("/etc/facter/facts.d").create + Facter::Util::DotD.new("/etc/puppetlabs/facter/facts.d").create + + # Windows has a different configuration directory that defaults to a vendor + # specific sub directory of the %COMMON_APPDATA% directory. + if Dir.const_defined? 'COMMON_APPDATA' then + windows_facts_dot_d = File.join(Dir::COMMON_APPDATA, 'PuppetLabs', 'facter', 'facts.d') + Facter::Util::DotD.new(windows_facts_dot_d).create + end + end + end +end diff --git a/spec/unit/facter/pe_required_facts_spec.rb b/spec/unit/facter/pe_required_facts_spec.rb new file mode 100644 index 0000000..f219b37 --- /dev/null +++ b/spec/unit/facter/pe_required_facts_spec.rb @@ -0,0 +1,69 @@ +# Puppet Enterprise requires the following facts to be set in order to operate. +# These facts are set using the file ???? and the two facts are +# `fact_stomp_port`, and `fact_stomp_server`. +# + +require 'spec_helper' + +describe "External facts in /etc/puppetlabs/facter/facts.d/puppet_enterprise_installer.txt" do + context "With Facter 1.6.17 which does not have external facts support" do + before :each do + Facter.stubs(:version).returns("1.6.17") + # Stub out the filesystem for stdlib + Dir.stubs(:entries).with("/etc/puppetlabs/facter/facts.d"). + returns(['puppet_enterprise_installer.txt']) + Dir.stubs(:entries).with("/etc/facter/facts.d").returns([]) + File.stubs(:readlines).with('/etc/puppetlabs/facter/facts.d/puppet_enterprise_installer.txt'). + returns([ + "fact_stomp_port=61613\n", + "fact_stomp_server=puppetmaster.acme.com\n", + "fact_is_puppetagent=true\n", + "fact_is_puppetmaster=false\n", + "fact_is_puppetca=false\n", + "fact_is_puppetconsole=false\n", + ]) + if Facter.collection.respond_to? :load + Facter.collection.load(:facter_dot_d) + else + Facter.collection.loader.load(:facter_dot_d) + end + end + + it 'defines fact_stomp_port' do + Facter.fact(:fact_stomp_port).value.should == '61613' + end + it 'defines fact_stomp_server' do + Facter.fact(:fact_stomp_server).value.should == 'puppetmaster.acme.com' + end + it 'defines fact_is_puppetagent' do + Facter.fact(:fact_is_puppetagent).value.should == 'true' + end + it 'defines fact_is_puppetmaster' do + Facter.fact(:fact_is_puppetmaster).value.should == 'false' + end + it 'defines fact_is_puppetca' do + Facter.fact(:fact_is_puppetca).value.should == 'false' + end + it 'defines fact_is_puppetconsole' do + Facter.fact(:fact_is_puppetconsole).value.should == 'false' + end + end + + [ '1.7.1', '2.0.1' ].each do |v| + context "With Facter #{v} which has external facts support" do + before :each do + Facter.stubs(:version).returns(v) + end + + it 'does not call Facter::Util::DotD.new' do + Facter::Util::DotD.expects(:new).never + + if Facter.collection.respond_to? :load + Facter.collection.load(:facter_dot_d) + else + Facter.collection.loader.load(:facter_dot_d) + end + end + end + end +end |