diff --git a/lib/puppet/settings.rb b/lib/puppet/settings.rb index fbafa5ef8..600832896 100644 --- a/lib/puppet/settings.rb +++ b/lib/puppet/settings.rb @@ -1,1335 +1,1337 @@ require 'puppet' require 'getoptlong' require 'puppet/util/watched_file' require 'puppet/util/command_line/puppet_option_parser' # The class for handling configuration files. class Puppet::Settings include Enumerable require 'puppet/settings/errors' require 'puppet/settings/base_setting' require 'puppet/settings/string_setting' require 'puppet/settings/enum_setting' + require 'puppet/settings/array_setting' require 'puppet/settings/file_setting' require 'puppet/settings/directory_setting' require 'puppet/settings/file_or_directory_setting' require 'puppet/settings/path_setting' require 'puppet/settings/boolean_setting' require 'puppet/settings/terminus_setting' require 'puppet/settings/duration_setting' require 'puppet/settings/ttl_setting' require 'puppet/settings/priority_setting' require 'puppet/settings/autosign_setting' require 'puppet/settings/config_file' require 'puppet/settings/value_translator' require 'puppet/settings/environment_conf' # local reference for convenience PuppetOptionParser = Puppet::Util::CommandLine::PuppetOptionParser attr_accessor :files attr_reader :timer # These are the settings that every app is required to specify; there are reasonable defaults defined in application.rb. REQUIRED_APP_SETTINGS = [:logdir, :confdir, :vardir] # This method is intended for puppet internal use only; it is a convenience method that # returns reasonable application default settings values for a given run_mode. def self.app_defaults_for_run_mode(run_mode) { :name => run_mode.to_s, :run_mode => run_mode.name, :confdir => run_mode.conf_dir, :vardir => run_mode.var_dir, :rundir => run_mode.run_dir, :logdir => run_mode.log_dir, } end def self.default_certname() hostname = hostname_fact domain = domain_fact if domain and domain != "" fqdn = [hostname, domain].join(".") else fqdn = hostname end fqdn.to_s.gsub(/\.$/, '') end def self.hostname_fact() Facter["hostname"].value end def self.domain_fact() Facter["domain"].value end def self.default_config_file_name "puppet.conf" end # Create a new collection of config settings. def initialize @config = {} @shortnames = {} @created = [] # Keep track of set values. @value_sets = { :cli => Values.new(:cli, @config), :memory => Values.new(:memory, @config), :application_defaults => Values.new(:application_defaults, @config), :overridden_defaults => Values.new(:overridden_defaults, @config), } @configuration_file = nil # And keep a per-environment cache @cache = Hash.new { |hash, key| hash[key] = {} } # The list of sections we've used. @used = [] @hooks_to_call_on_application_initialization = [] @translate = Puppet::Settings::ValueTranslator.new @config_file_parser = Puppet::Settings::ConfigFile.new(@translate) end # @param name [Symbol] The name of the setting to fetch # @return [Puppet::Settings::BaseSetting] The setting object def setting(name) @config[name] end # Retrieve a config value # @param param [Symbol] the name of the setting # @return [Object] the value of the setting # @api private def [](param) Puppet.deprecation_warning("Accessing '#{param}' as a setting is deprecated. See http://links.puppetlabs.com/env-settings-deprecations") if DEPRECATED_SETTINGS.include?(param) value(param) end # Set a config value. This doesn't set the defaults, it sets the value itself. # @param param [Symbol] the name of the setting # @param value [Object] the new value of the setting # @api private def []=(param, value) Puppet.deprecation_warning("Modifying '#{param}' as a setting is deprecated. See http://links.puppetlabs.com/env-settings-deprecations") if DEPRECATED_SETTINGS.include?(param) @value_sets[:memory].set(param, value) unsafe_flush_cache end # Create a new default value for the given setting. The default overrides are # higher precedence than the defaults given in defaults.rb, but lower # precedence than any other values for the setting. This allows one setting # `a` to change the default of setting `b`, but still allow a user to provide # a value for setting `b`. # # @param param [Symbol] the name of the setting # @param value [Object] the new default value for the setting # @api private def override_default(param, value) @value_sets[:overridden_defaults].set(param, value) unsafe_flush_cache end # Generate the list of valid arguments, in a format that GetoptLong can # understand, and add them to the passed option list. def addargs(options) # Add all of the settings as valid options. self.each { |name, setting| setting.getopt_args.each { |args| options << args } } options end # Generate the list of valid arguments, in a format that OptionParser can # understand, and add them to the passed option list. def optparse_addargs(options) # Add all of the settings as valid options. self.each { |name, setting| options << setting.optparse_args } options end # Is our setting a boolean setting? def boolean?(param) param = param.to_sym @config.include?(param) and @config[param].kind_of?(BooleanSetting) end # Remove all set values, potentially skipping cli values. def clear unsafe_clear end # Remove all set values, potentially skipping cli values. def unsafe_clear(clear_cli = true, clear_application_defaults = false) if clear_application_defaults @value_sets[:application_defaults] = Values.new(:application_defaults, @config) @app_defaults_initialized = false end if clear_cli @value_sets[:cli] = Values.new(:cli, @config) # Only clear the 'used' values if we were explicitly asked to clear out # :cli values; otherwise, it may be just a config file reparse, # and we want to retain this cli values. @used = [] end @value_sets[:memory] = Values.new(:memory, @config) @value_sets[:overridden_defaults] = Values.new(:overridden_defaults, @config) @cache.clear end private :unsafe_clear # Clear @cache, @used and the Environment. # # Whenever an object is returned by Settings, a copy is stored in @cache. # As long as Setting attributes that determine the content of returned # objects remain unchanged, Settings can keep returning objects from @cache # without re-fetching or re-generating them. # # Whenever a Settings attribute changes, such as @values or @preferred_run_mode, # this method must be called to clear out the caches so that updated # objects will be returned. def flush_cache unsafe_flush_cache end def unsafe_flush_cache clearused # Clear the list of environments, because they cache, at least, the module path. # We *could* preferentially just clear them if the modulepath is changed, # but we don't really know if, say, the vardir is changed and the modulepath # is defined relative to it. We need the defined?(stuff) because of loading # order issues. Puppet::Node::Environment.clear if defined?(Puppet::Node) and defined?(Puppet::Node::Environment) end private :unsafe_flush_cache def clearused @cache.clear @used = [] end def global_defaults_initialized?() @global_defaults_initialized end def initialize_global_settings(args = []) raise Puppet::DevError, "Attempting to initialize global default settings more than once!" if global_defaults_initialized? # The first two phases of the lifecycle of a puppet application are: # 1) Parse the command line options and handle any of them that are # registered, defined "global" puppet settings (mostly from defaults.rb). # 2) Parse the puppet config file(s). parse_global_options(args) parse_config_files @global_defaults_initialized = true end # This method is called during application bootstrapping. It is responsible for parsing all of the # command line options and initializing the settings accordingly. # # It will ignore options that are not defined in the global puppet settings list, because they may # be valid options for the specific application that we are about to launch... however, at this point # in the bootstrapping lifecycle, we don't yet know what that application is. def parse_global_options(args) # Create an option parser option_parser = PuppetOptionParser.new option_parser.ignore_invalid_options = true # Add all global options to it. self.optparse_addargs([]).each do |option| option_parser.on(*option) do |arg| opt, val = Puppet::Settings.clean_opt(option[0], arg) handlearg(opt, val) end end option_parser.on('--run_mode', "The effective 'run mode' of the application: master, agent, or user.", :REQUIRED) do |arg| Puppet.settings.preferred_run_mode = arg end option_parser.parse(args) # remove run_mode options from the arguments so that later parses don't think # it is an unknown option. while option_index = args.index('--run_mode') do args.delete_at option_index args.delete_at option_index end args.reject! { |arg| arg.start_with? '--run_mode=' } end private :parse_global_options # A utility method (public, is used by application.rb and perhaps elsewhere) that munges a command-line # option string into the format that Puppet.settings expects. (This mostly has to deal with handling the # "no-" prefix on flag/boolean options). # # @param [String] opt the command line option that we are munging # @param [String, TrueClass, FalseClass] val the value for the setting (as determined by the OptionParser) def self.clean_opt(opt, val) # rewrite --[no-]option to --no-option if that's what was given if opt =~ /\[no-\]/ and !val opt = opt.gsub(/\[no-\]/,'no-') end # otherwise remove the [no-] prefix to not confuse everybody opt = opt.gsub(/\[no-\]/, '') [opt, val] end def app_defaults_initialized? @app_defaults_initialized end def initialize_app_defaults(app_defaults) REQUIRED_APP_SETTINGS.each do |key| raise SettingsError, "missing required app default setting '#{key}'" unless app_defaults.has_key?(key) end app_defaults.each do |key, value| if key == :run_mode self.preferred_run_mode = value else @value_sets[:application_defaults].set(key, value) unsafe_flush_cache end end apply_metadata call_hooks_deferred_to_application_initialization @app_defaults_initialized = true end def call_hooks_deferred_to_application_initialization(options = {}) @hooks_to_call_on_application_initialization.each do |setting| begin setting.handle(self.value(setting.name)) rescue InterpolationError => err raise InterpolationError, err, err.backtrace unless options[:ignore_interpolation_dependency_errors] #swallow. We're not concerned if we can't call hooks because dependencies don't exist yet #we'll get another chance after application defaults are initialized end end end private :call_hooks_deferred_to_application_initialization # Return a value's description. def description(name) if obj = @config[name.to_sym] obj.desc else nil end end def each @config.each { |name, object| yield name, object } end # Iterate over each section name. def eachsection yielded = [] @config.each do |name, object| section = object.section unless yielded.include? section yield section yielded << section end end end # Return an object by name. def setting(param) param = param.to_sym @config[param] end # Handle a command-line argument. def handlearg(opt, value = nil) @cache.clear if value.is_a?(FalseClass) value = "false" elsif value.is_a?(TrueClass) value = "true" end value &&= @translate[value] str = opt.sub(/^--/,'') bool = true newstr = str.sub(/^no-/, '') if newstr != str str = newstr bool = false end str = str.intern if @config[str].is_a?(Puppet::Settings::BooleanSetting) if value == "" or value.nil? value = bool end end if FULLY_DEPRECATED_SETTINGS.include?(str) Puppet.deprecation_warning("Setting #{str} is deprecated. See http://links.puppetlabs.com/env-settings-deprecations", "setting-#{str}") end @value_sets[:cli].set(str, value) unsafe_flush_cache end def include?(name) name = name.intern if name.is_a? String @config.include?(name) end # check to see if a short name is already defined def shortinclude?(short) short = short.intern if name.is_a? String @shortnames.include?(short) end # Prints the contents of a config file with the available config settings, or it # prints a single value of a config setting. def print_config_options env = value(:environment) val = value(:configprint) if val == "all" hash = {} each do |name, obj| val = value(name,env) val = val.inspect if val == "" hash[name] = val end hash.sort { |a,b| a[0].to_s <=> b[0].to_s }.each do |name, val| puts "#{name} = #{val}" end else val.split(/\s*,\s*/).sort.each do |v| if include?(v) #if there is only one value, just print it for back compatibility if v == val puts value(val,env) break end puts "#{v} = #{value(v,env)}" else puts "invalid setting: #{v}" return false end end end true end def generate_config puts to_config true end def generate_manifest puts to_manifest true end def print_configs return print_config_options if value(:configprint) != "" return generate_config if value(:genconfig) generate_manifest if value(:genmanifest) end def print_configs? (value(:configprint) != "" || value(:genconfig) || value(:genmanifest)) && true end # Return a given object's file metadata. def metadata(param) if obj = @config[param.to_sym] and obj.is_a?(FileSetting) { :owner => obj.owner, :group => obj.group, :mode => obj.mode }.delete_if { |key, value| value.nil? } else nil end end # Make a directory with the appropriate user, group, and mode def mkdir(default) obj = get_config_file_default(default) Puppet::Util::SUIDManager.asuser(obj.owner, obj.group) do mode = obj.mode || 0750 Dir.mkdir(obj.value, mode) end end # The currently configured run mode that is preferred for constructing the application configuration. def preferred_run_mode @preferred_run_mode_name || :user end # PRIVATE! This only exists because we need a hook to validate the run mode when it's being set, and # it should never, ever, ever, ever be called from outside of this file. # This method is also called when --run_mode MODE is used on the command line to set the default # # @param mode [String|Symbol] the name of the mode to have in effect # @api private def preferred_run_mode=(mode) mode = mode.to_s.downcase.intern raise ValidationError, "Invalid run mode '#{mode}'" unless [:master, :agent, :user].include?(mode) @preferred_run_mode_name = mode # Changing the run mode has far-reaching consequences. Flush any cached # settings so they will be re-generated. flush_cache mode end # Return all of the settings associated with a given section. def params(section = nil) if section section = section.intern if section.is_a? String @config.find_all { |name, obj| obj.section == section }.collect { |name, obj| name } else @config.keys end end def parse_config(text, file = "text") begin data = @config_file_parser.parse_file(file, text) rescue => detail Puppet.log_exception(detail, "Could not parse #{file}: #{detail}") return end # If we get here and don't have any data, we just return and don't muck with the current state of the world. return if data.nil? issue_deprecations(data) # If we get here then we have some data, so we need to clear out any previous settings that may have come from # config files. unsafe_clear(false, false) # And now we can repopulate with the values from our last parsing of the config files. @configuration_file = data # Determine our environment, if we have one. if @config[:environment] env = self.value(:environment).to_sym else env = "none" end # Call any hooks we should be calling. @config.values.select(&:has_hook?).each do |setting| value_sets_for(env, self.preferred_run_mode).each do |source| if source.include?(setting.name) # We still have to use value to retrieve the value, since # we want the fully interpolated value, not $vardir/lib or whatever. # This results in extra work, but so few of the settings # will have associated hooks that it ends up being less work this # way overall. if setting.call_hook_on_initialize? @hooks_to_call_on_application_initialization << setting else setting.handle(self.value(setting.name, env)) end break end end end call_hooks_deferred_to_application_initialization :ignore_interpolation_dependency_errors => true apply_metadata end # Parse the configuration file. Just provides thread safety. def parse_config_files file = which_configuration_file if Puppet::FileSystem.exist?(file) begin text = read_file(file) rescue => detail Puppet.log_exception(detail, "Could not load #{file}: #{detail}") return end else return end parse_config(text, file) end private :parse_config_files def main_config_file if explicit_config_file? return self[:config] else return File.join(Puppet::Util::RunMode[:master].conf_dir, config_file_name) end end private :main_config_file def user_config_file return File.join(Puppet::Util::RunMode[:user].conf_dir, config_file_name) end private :user_config_file # This method is here to get around some life-cycle issues. We need to be # able to determine the config file name before the settings / defaults are # fully loaded. However, we also need to respect any overrides of this value # that the user may have specified on the command line. # # The easiest way to do this is to attempt to read the setting, and if we # catch an error (meaning that it hasn't been set yet), we'll fall back to # the default value. def config_file_name begin return self[:config_file_name] if self[:config_file_name] rescue SettingsError # This just means that the setting wasn't explicitly set on the command line, so we will ignore it and # fall through to the default name. end return self.class.default_config_file_name end private :config_file_name def apply_metadata # We have to do it in the reverse of the search path, # because multiple sections could set the same value # and I'm too lazy to only set the metadata once. if @configuration_file searchpath.reverse.each do |source| source = preferred_run_mode if source == :run_mode if section = @configuration_file.sections[source] apply_metadata_from_section(section) end end end end private :apply_metadata def apply_metadata_from_section(section) section.settings.each do |setting| if setting.has_metadata? && type = @config[setting.name] type.set_meta(setting.meta) end end end SETTING_TYPES = { :string => StringSetting, :file => FileSetting, :directory => DirectorySetting, :file_or_directory => FileOrDirectorySetting, :path => PathSetting, :boolean => BooleanSetting, :terminus => TerminusSetting, :duration => DurationSetting, :ttl => TTLSetting, + :array => ArraySetting, :enum => EnumSetting, :priority => PrioritySetting, :autosign => AutosignSetting, } # Create a new setting. The value is passed in because it's used to determine # what kind of setting we're creating, but the value itself might be either # a default or a value, so we can't actually assign it. # # See #define_settings for documentation on the legal values for the ":type" option. def newsetting(hash) klass = nil hash[:section] = hash[:section].to_sym if hash[:section] if type = hash[:type] unless klass = SETTING_TYPES[type] raise ArgumentError, "Invalid setting type '#{type}'" end hash.delete(:type) else # The only implicit typing we still do for settings is to fall back to "String" type if they didn't explicitly # specify a type. Personally I'd like to get rid of this too, and make the "type" option mandatory... but # there was a little resistance to taking things quite that far for now. --cprice 2012-03-19 klass = StringSetting end hash[:settings] = self setting = klass.new(hash) setting end # This has to be private, because it doesn't add the settings to @config private :newsetting # Iterate across all of the objects in a given section. def persection(section) section = section.to_sym self.each { |name, obj| if obj.section == section yield obj end } end # Reparse our config file, if necessary. def reparse_config_files if files if filename = any_files_changed? Puppet.notice "Config file #{filename} changed; triggering re-parse of all config files." parse_config_files reuse end end end def files return @files if @files @files = [] [main_config_file, user_config_file].each do |path| if Puppet::FileSystem.exist?(path) @files << Puppet::Util::WatchedFile.new(path) end end @files end private :files # Checks to see if any of the config files have been modified # @return the filename of the first file that is found to have changed, or # nil if no files have changed def any_files_changed? files.each do |file| return file.to_str if file.changed? end nil end private :any_files_changed? def reuse return unless defined?(@used) new = @used @used = [] self.use(*new) end # The order in which to search for values. def searchpath(environment = nil) [:memory, :cli, environment, :run_mode, :main, :application_defaults, :overridden_defaults].compact end # Get a list of objects per section def sectionlist sectionlist = [] self.each { |name, obj| section = obj.section || "puppet" sections[section] ||= [] sectionlist << section unless sectionlist.include?(section) sections[section] << obj } return sectionlist, sections end def service_user_available? return @service_user_available if defined?(@service_user_available) if self[:user] user = Puppet::Type.type(:user).new :name => self[:user], :audit => :ensure @service_user_available = user.exists? else @service_user_available = false end end def service_group_available? return @service_group_available if defined?(@service_group_available) if self[:group] group = Puppet::Type.type(:group).new :name => self[:group], :audit => :ensure @service_group_available = group.exists? else @service_group_available = false end end # Allow later inspection to determine if the setting was set on the # command line, or through some other code path. Used for the # `dns_alt_names` option during cert generate. --daniel 2011-10-18 def set_by_cli?(param) param = param.to_sym !@value_sets[:cli].lookup(param).nil? end def set_value(param, value, type, options = {}) Puppet.deprecation_warning("Puppet.settings.set_value is deprecated. Use Puppet[]= instead.") if @value_sets[type] @value_sets[type].set(param, value) unsafe_flush_cache end end # Deprecated; use #define_settings instead def setdefaults(section, defs) Puppet.deprecation_warning("'setdefaults' is deprecated and will be removed; please call 'define_settings' instead") define_settings(section, defs) end # Define a group of settings. # # @param [Symbol] section a symbol to use for grouping multiple settings together into a conceptual unit. This value # (and the conceptual separation) is not used very often; the main place where it will have a potential impact # is when code calls Settings#use method. See docs on that method for further details, but basically that method # just attempts to do any preparation that may be necessary before code attempts to leverage the value of a particular # setting. This has the most impact for file/directory settings, where #use will attempt to "ensure" those # files / directories. # @param [Hash[Hash]] defs the settings to be defined. This argument is a hash of hashes; each key should be a symbol, # which is basically the name of the setting that you are defining. The value should be another hash that specifies # the parameters for the particular setting. Legal values include: # [:default] => required; this is a string value that will be used as a default value for a setting if no other # value is specified (via cli, config file, etc.) This string may include "variables", demarcated with $ or ${}, # which will be interpolated with values of other settings. # [:desc] => required; a description of the setting, used in documentation / help generation # [:type] => not required, but highly encouraged! This specifies the data type that the setting represents. If # you do not specify it, it will default to "string". Legal values include: # :string - A generic string setting # :boolean - A boolean setting; values are expected to be "true" or "false" # :file - A (single) file path; puppet may attempt to create this file depending on how the settings are used. This type # also supports additional options such as "mode", "owner", "group" # :directory - A (single) directory path; puppet may attempt to create this file depending on how the settings are used. This type # also supports additional options such as "mode", "owner", "group" # :path - This is intended to be used for settings whose value can contain multiple directory paths, respresented # as strings separated by the system path separator (e.g. system path, module path, etc.). # [:mode] => an (optional) octal value to be used as the permissions/mode for :file and :directory settings # [:owner] => optional owner username/uid for :file and :directory settings # [:group] => optional group name/gid for :file and :directory settings # def define_settings(section, defs) section = section.to_sym call = [] defs.each do |name, hash| raise ArgumentError, "setting definition for '#{name}' is not a hash!" unless hash.is_a? Hash name = name.to_sym hash[:name] = name hash[:section] = section raise ArgumentError, "Setting #{name} is already defined" if @config.include?(name) tryconfig = newsetting(hash) if short = tryconfig.short if other = @shortnames[short] raise ArgumentError, "Setting #{other.name} is already using short name '#{short}'" end @shortnames[short] = tryconfig end @config[name] = tryconfig # Collect the settings that need to have their hooks called immediately. # We have to collect them so that we can be sure we're fully initialized before # the hook is called. if tryconfig.has_hook? if tryconfig.call_hook_on_define? call << tryconfig elsif tryconfig.call_hook_on_initialize? @hooks_to_call_on_application_initialization << tryconfig end end end call.each do |setting| setting.handle(self.value(setting.name)) end end # Convert the settings we manage into a catalog full of resources that model those settings. def to_catalog(*sections) sections = nil if sections.empty? catalog = Puppet::Resource::Catalog.new("Settings", Puppet::Node::Environment::NONE) @config.keys.find_all { |key| @config[key].is_a?(FileSetting) }.each do |key| file = @config[key] next unless (sections.nil? or sections.include?(file.section)) next unless resource = file.to_resource next if catalog.resource(resource.ref) Puppet.debug("Using settings: adding file resource '#{key}': '#{resource.inspect}'") catalog.add_resource(resource) end add_user_resources(catalog, sections) catalog end # Convert our list of config settings into a configuration file. def to_config str = %{The configuration file for #{Puppet.run_mode.name}. Note that this file is likely to have unused settings in it; any setting that's valid anywhere in Puppet can be in any config file, even if it's not used. Every section can specify three special parameters: owner, group, and mode. These parameters affect the required permissions of any files specified after their specification. Puppet will sometimes use these parameters to check its own configured state, so they can be used to make Puppet a bit more self-managing. The file format supports octothorpe-commented lines, but not partial-line comments. Generated on #{Time.now}. }.gsub(/^/, "# ") # Add a section heading that matches our name. str += "[#{preferred_run_mode}]\n" eachsection do |section| persection(section) do |obj| str += obj.to_config + "\n" unless obj.name == :genconfig end end return str end # Convert to a parseable manifest def to_manifest catalog = to_catalog catalog.resource_refs.collect do |ref| catalog.resource(ref).to_manifest end.join("\n\n") end # Create the necessary objects to use a section. This is idempotent; # you can 'use' a section as many times as you want. def use(*sections) sections = sections.collect { |s| s.to_sym } sections = sections.reject { |s| @used.include?(s) } return if sections.empty? begin catalog = to_catalog(*sections).to_ral rescue => detail Puppet.log_and_raise(detail, "Could not create resources for managing Puppet's files and directories in sections #{sections.inspect}: #{detail}") end catalog.host_config = false catalog.apply do |transaction| if transaction.any_failed? report = transaction.report status_failures = report.resource_statuses.values.select { |r| r.failed? } status_fail_msg = status_failures. collect(&:events). flatten. select { |event| event.status == 'failure' }. collect { |event| "#{event.resource}: #{event.message}" }.join("; ") raise "Got #{status_failures.length} failure(s) while initializing: #{status_fail_msg}" end end sections.each { |s| @used << s } @used.uniq! end def valid?(param) param = param.to_sym @config.has_key?(param) end def uninterpolated_value(param, environment = nil) Puppet.deprecation_warning("Puppet.settings.uninterpolated_value is deprecated. Use Puppet.settings.value instead") param = param.to_sym environment &&= environment.to_sym values(environment, self.preferred_run_mode).lookup(param) end # Retrieve an object that can be used for looking up values of configuration # settings. # # @param environment [Symbol] The name of the environment in which to lookup # @param section [Symbol] The name of the configuration section in which to lookup # @return [Puppet::Settings::ChainedValues] An object to perform lookups # @api public def values(environment, section) ChainedValues.new( section, environment, value_sets_for(environment, section), @config) end # Find the correct value using our search path. # # @param param [String, Symbol] The value to look up # @param environment [String, Symbol] The environment to check for the value # @param bypass_interpolation [true, false] Whether to skip interpolation # # @return [Object] The looked up value # # @raise [InterpolationError] def value(param, environment = nil, bypass_interpolation = false) param = param.to_sym environment &&= environment.to_sym setting = @config[param] # Short circuit to nil for undefined settings. return nil if setting.nil? # Check the cache first. It needs to be a per-environment # cache so that we don't spread values from one env # to another. if @cache[environment||"none"].has_key?(param) return @cache[environment||"none"][param] elsif bypass_interpolation val = values(environment, self.preferred_run_mode).lookup(param) else val = values(environment, self.preferred_run_mode).interpolate(param) end @cache[environment||"none"][param] = val val end ## # (#15337) All of the logic to determine the configuration file to use # should be centralized into this method. The simplified approach is: # # 1. If there is an explicit configuration file, use that. (--confdir or # --config) # 2. If we're running as a root process, use the system puppet.conf # (usually /etc/puppet/puppet.conf) # 3. Otherwise, use the user puppet.conf (usually ~/.puppet/puppet.conf) # # @api private # @todo this code duplicates {Puppet::Util::RunMode#which_dir} as described # in {http://projects.puppetlabs.com/issues/16637 #16637} def which_configuration_file if explicit_config_file? or Puppet.features.root? then return main_config_file else return user_config_file end end # This method just turns a file into a new ConfigFile::Conf instance # @param file [String] absolute path to the configuration file # @return [Puppet::Settings::ConfigFile::Conf] # @api private def parse_file(file) @config_file_parser.parse_file(file, read_file(file)) end private DEPRECATED_ENVIRONMENT_SETTINGS = [:manifest, :modulepath, :config_version].freeze FULLY_DEPRECATED_SETTINGS = [:templatedir, :manifestdir].freeze DEPRECATED_SETTINGS = (DEPRECATED_ENVIRONMENT_SETTINGS + FULLY_DEPRECATED_SETTINGS).freeze def issue_deprecations(data) sections = data.sections.inject([]) do |accum,entry| accum << entry[1] if [:main, :master, :agent, :user].include?(entry[0]) accum end sections.each do |section| DEPRECATED_ENVIRONMENT_SETTINGS.each do |s| Puppet.deprecation_warning("Setting #{s} is deprecated in puppet.conf. See http://links.puppetlabs.com/env-settings-deprecations", "puppet-conf-setting-#{s}") if !section.setting(s).nil? end FULLY_DEPRECATED_SETTINGS.each do |s| Puppet.deprecation_warning("Setting #{s} is deprecated. See http://links.puppetlabs.com/env-settings-deprecations", "setting-#{s}") if !section.setting(s).nil? end end end def get_config_file_default(default) obj = nil unless obj = @config[default] raise ArgumentError, "Unknown default #{default}" end raise ArgumentError, "Default #{default} is not a file" unless obj.is_a? FileSetting obj end def add_user_resources(catalog, sections) return unless Puppet.features.root? return if Puppet.features.microsoft_windows? return unless self[:mkusers] @config.each do |name, setting| next unless setting.respond_to?(:owner) next unless sections.nil? or sections.include?(setting.section) if user = setting.owner and user != "root" and catalog.resource(:user, user).nil? resource = Puppet::Resource.new(:user, user, :parameters => {:ensure => :present}) resource[:gid] = self[:group] if self[:group] catalog.add_resource resource end if group = setting.group and ! %w{root wheel}.include?(group) and catalog.resource(:group, group).nil? catalog.add_resource Puppet::Resource.new(:group, group, :parameters => {:ensure => :present}) end end end # Yield each search source in turn. def value_sets_for(environment, mode) searchpath(environment).collect do |name| case name when :cli, :memory, :application_defaults, :overridden_defaults @value_sets[name] when :run_mode if @configuration_file section = @configuration_file.sections[mode] if section ValuesFromSection.new(mode, section) end end else values_from_section = nil if @configuration_file if section = @configuration_file.sections[name] values_from_section = ValuesFromSection.new(name, section) end end if values_from_section.nil? && global_defaults_initialized? values_from_section = ValuesFromEnvironmentConf.new(name) end values_from_section end end.compact end # Read the file in. # @api private def read_file(file) return Puppet::FileSystem.read(file) end # Private method for internal test use only; allows to do a comprehensive clear of all settings between tests. # # @return nil def clear_everything_for_tests() unsafe_clear(true, true) @global_defaults_initialized = false @app_defaults_initialized = false end private :clear_everything_for_tests def explicit_config_file? # Figure out if the user has provided an explicit configuration file. If # so, return the path to the file, if not return nil. # # The easiest way to determine whether an explicit one has been specified # is to simply attempt to evaluate the value of ":config". This will # obviously be successful if they've passed an explicit value for :config, # but it will also result in successful interpolation if they've only # passed an explicit value for :confdir. # # If they've specified neither, then the interpolation will fail and we'll # get an exception. # begin return true if self[:config] rescue InterpolationError # This means we failed to interpolate, which means that they didn't # explicitly specify either :config or :confdir... so we'll fall out to # the default value. return false end end private :explicit_config_file? # Lookup configuration setting value through a chain of different value sources. # # @api public class ChainedValues # @see Puppet::Settings.values # @api private def initialize(mode, environment, value_sets, defaults) @mode = mode @environment = environment @value_sets = value_sets @defaults = defaults end # Lookup the uninterpolated value. # # @param name [Symbol] The configuration setting name to look up # @return [Object] The configuration setting value or nil if the setting is not known # @api public def lookup(name) set = @value_sets.find do |set| set.include?(name) end if set value = set.lookup(name) if !value.nil? return value end end @defaults[name].default end # Lookup the interpolated value. All instances of `$name` in the value will # be replaced by performing a lookup of `name` and substituting the text # for `$name` in the original value. This interpolation is only performed # if the looked up value is a String. # # @param name [Symbol] The configuration setting name to look up # @return [Object] The configuration setting value or nil if the setting is not known # @api public def interpolate(name) setting = @defaults[name] if setting val = lookup(name) # if we interpolate code, all hell breaks loose. if name == :code val else # Convert it if necessary begin val = convert(val) rescue InterpolationError => err # This happens because we don't have access to the param name when the # exception is originally raised, but we want it in the message raise InterpolationError, "Error converting value for param '#{name}': #{err}", err.backtrace end setting.munge(val) end else nil end end private def convert(value) return nil if value.nil? return value unless value.is_a? String value.gsub(/\$(\w+)|\$\{(\w+)\}/) do |value| varname = $2 || $1 if varname == "environment" && @environment @environment elsif varname == "run_mode" @mode elsif !(pval = interpolate(varname.to_sym)).nil? pval else raise InterpolationError, "Could not find value for #{value}" end end end end class Values def initialize(name, defaults) @name = name @values = {} @defaults = defaults end def include?(name) @values.include?(name) end def set(name, value) if !@defaults[name] raise ArgumentError, "Attempt to assign a value to unknown setting #{name.inspect}" end if @defaults[name].has_hook? @defaults[name].handle(value) end @values[name] = value end def lookup(name) @values[name] end end class ValuesFromSection def initialize(name, section) @name = name @section = section end def include?(name) !@section.setting(name).nil? end def lookup(name) setting = @section.setting(name) if setting setting.value end end end # @api private class ValuesFromEnvironmentConf def initialize(environment_name) @environment_name = environment_name end def include?(name) if Puppet::Settings::EnvironmentConf::VALID_SETTINGS.include?(name) && conf return true end false end def lookup(name) return nil unless Puppet::Settings::EnvironmentConf::VALID_SETTINGS.include?(name) conf.send(name) if conf end def conf unless @conf if environments = Puppet.lookup(:environments) @conf = environments.get_conf(@environment_name) end end return @conf end end end diff --git a/lib/puppet/settings/array_setting.rb b/lib/puppet/settings/array_setting.rb new file mode 100644 index 000000000..82558c3bb --- /dev/null +++ b/lib/puppet/settings/array_setting.rb @@ -0,0 +1,17 @@ +class Puppet::Settings::ArraySetting < Puppet::Settings::BaseSetting + + def type + :array + end + + def munge(value) + case value + when String + value.split(/\s*,\s*/) + when Array + value + else + raise ArgumentError, "Expected an Array or String, got a #{value.class}" + end + end +end diff --git a/spec/unit/settings/array_setting_spec.rb b/spec/unit/settings/array_setting_spec.rb new file mode 100644 index 000000000..05cc28d6a --- /dev/null +++ b/spec/unit/settings/array_setting_spec.rb @@ -0,0 +1,39 @@ +require 'spec_helper' + +require 'puppet/settings' +require 'puppet/settings/array_setting' + +describe Puppet::Settings::ArraySetting do + subject { described_class.new(:settings => stub('settings'), :desc => "test") } + + it "is of type :array" do + expect(subject.type).to eq :array + end + + describe "munging the value" do + describe "when given a string" do + it "splits multiple values into an array" do + expect(subject.munge("foo,bar")).to eq %w[foo bar] + end + it "strips whitespace between elements" do + expect(subject.munge("foo , bar")).to eq %w[foo bar] + end + + it "creates an array when one item is given" do + expect(subject.munge("foo")).to eq %w[foo] + end + end + + describe "when given an array" do + it "returns the array" do + expect(subject.munge(%w[foo])).to eq %w[foo] + end + end + + it "raises an error when given an unexpected object type" do + expect { + subject.munge({:foo => 'bar'}) + }.to raise_error(ArgumentError, "Expected an Array or String, got a Hash") + end + end +end