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require 'puppet/indirector'
# A class for managing nodes, including their facts and environment.
class Puppet::Node
require 'puppet/node/facts'
require 'puppet/node/environment'
# Set up indirection, so that nodes can be looked for in
# the node sources.
extend Puppet::Indirector
# Adds the environment getter and setter, with some instance/string conversion
include Puppet::Node::Environment::Helper
# Use the node source as the indirection terminus.
indirects :node, :terminus_setting => :node_terminus, :doc => "Where to find node information.
A node is composed of its name, its facts, and its environment."
attr_accessor :name, :classes, :source, :ipaddress
attr_reader :time, :parameters
def environment
return super if @environment
if env = parameters["environment"]
self.environment = env
return super
end
# Else, return the default
Puppet::Node::Environment.new
end
def initialize(name, options = {})
raise ArgumentError, "Node names cannot be nil" unless name
@name = name
if classes = options[:classes]
if classes.is_a?(String)
@classes = [classes]
else
@classes = classes
end
else
@classes = []
end
@parameters = options[:parameters] || {}
if env = options[:environment]
self.environment = env
end
@time = Time.now
end
# Merge the node facts with parameters from the node source.
def fact_merge
if facts = Puppet::Node::Facts.find(name)
merge(facts.values)
end
rescue => detail
error = Puppet::Error.new("Could not retrieve facts for #{name}: #{detail}")
error.set_backtrace(detail.backtrace)
raise error
end
# Merge any random parameters into our parameter list.
def merge(params)
params.each do |name, value|
@parameters[name] = value unless @parameters.include?(name)
end
@parameters["environment"] ||= self.environment.name.to_s if self.environment
end
# Calculate the list of names we might use for looking
# up our node. This is only used for AST nodes.
def names
return [name] if Puppet.settings[:strict_hostname_checking]
names = []
names += split_name(name) if name.include?(".")
# First, get the fqdn
unless fqdn = parameters["fqdn"]
if parameters["hostname"] and parameters["domain"]
fqdn = parameters["hostname"] + "." + parameters["domain"]
else
Puppet.warning "Host is missing hostname and/or domain: #{name}"
end
end
# Now that we (might) have the fqdn, add each piece to the name
# list to search, in order of longest to shortest.
names += split_name(fqdn) if fqdn
# And make sure the node name is first, since that's the most
# likely usage.
# The name is usually the Certificate CN, but it can be
# set to the 'facter' hostname instead.
if Puppet[:node_name] == 'cert'
names.unshift name
else
names.unshift parameters["hostname"]
end
names.uniq
end
def split_name(name)
list = name.split(".")
tmp = []
list.each_with_index do |short, i|
tmp << list[0..i].join(".")
end
tmp.reverse
end
end
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