Class: Puppet::Node::Environment

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/node/environment.rb

Overview

Puppet::Node::Environment acts as a container for all configuration that is expected to vary between environments.

## The root environment

In addition to normal environments that are defined by the user,there is a special 'root' environment. It is defined as an instance variable on the Puppet::Node::Environment metaclass. The environment name is `root` and can be accessed by looking up the `:root_environment` using Puppet.lookup.

The primary purpose of the root environment is to contain parser functions that are not bound to a specific environment. The main case for this is for logging functions. Logging functions are attached to the 'root' environment when Parser::Functions.reset is called.

Direct Known Subclasses

None, Remote

Defined Under Namespace

Classes: None, Remote

Constant Summary collapse

NO_MANIFEST =
:no_manifest

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, modulepath, manifest, config_version) ⇒ Environment

Note:

new is private for historical reasons, as previously it had been overridden to return memoized objects and was replaced with create, so this will not be invoked with the normal Ruby initialization semantics.

Instantiate a new environment

Parameters:

  • name (Symbol)

    The environment name


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# File 'lib/puppet/node/environment.rb', line 73

def initialize(name, modulepath, manifest, config_version)
  @lock = Puppet::Concurrent::Lock.new
  @name = name.intern
  @modulepath = self.class.expand_dirs(self.class.extralibs() + modulepath)
  @manifest = manifest == NO_MANIFEST ? manifest : Puppet::FileSystem.expand_path(manifest)

  @config_version = config_version
end

Instance Attribute Details

#config_versionObject (readonly)

Returns the value of attribute config_version


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# File 'lib/puppet/node/environment.rb', line 159

def config_version
  @config_version
end

#loadersObject

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Cached loaders - management of value handled by Puppet::Pops::Loaders


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# File 'lib/puppet/node/environment.rb', line 163

def loaders
  @loaders
end

#lockObject (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Lock for compilation that needs exclusive access to the environment


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# File 'lib/puppet/node/environment.rb', line 167

def lock
  @lock
end

#manifestObject (readonly)

Returns the value of attribute manifest


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# File 'lib/puppet/node/environment.rb', line 153

def manifest
  @manifest
end

#nameObject (readonly)

Returns the value of attribute name


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# File 'lib/puppet/node/environment.rb', line 134

def name
  @name
end

Class Method Details

.create(name, modulepath, manifest = NO_MANIFEST, config_version = nil) ⇒ Puppet::Node::Environment

Create a new environment with the given name

Parameters:

  • name (Symbol)

    the name of the environment

  • modulepath (Array<String>)

    the list of paths from which to load modules

  • manifest (String) (defaults to: NO_MANIFEST)

    the path to the manifest for the environment or the constant Puppet::Node::Environment::NO_MANIFEST if there is none.

  • config_version (String) (defaults to: nil)

    path to a script whose output will be added to report logs (optional)

Returns:


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# File 'lib/puppet/node/environment.rb', line 42

def self.create(name, modulepath, manifest = NO_MANIFEST, config_version = nil)
  new(name, modulepath, manifest, config_version)
end

.expand_dirs(dirs) ⇒ Object

not private so it can be called in initialize


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# File 'lib/puppet/node/environment.rb', line 516

def self.expand_dirs(dirs)
  dirs.collect do |dir|
    Puppet::FileSystem.expand_path(dir)
  end
end

.extralibsObject

not private so it can be called in tests


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# File 'lib/puppet/node/environment.rb', line 507

def self.extralibs()
  if Puppet::Util.get_env('PUPPETLIB')
    split_path(Puppet::Util.get_env('PUPPETLIB'))
  else
    []
  end
end

.remote(name) ⇒ Object

Note:

This does not provide access to the information of the remote

A “reference” to a remote environment. The created environment instance isn't expected to exist on the local system, but is instead a reference to environment information on a remote system. For instance when a catalog is being applied, this will be used on the agent.

environment's modules, manifest, or anything else. It is simply a value object to pass around and use as an environment.

Parameters:

  • name (Symbol)

    The name of the remote environment


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# File 'lib/puppet/node/environment.rb', line 61

def self.remote(name)
  Remote.create(name, [], NO_MANIFEST)
end

.split_path(path_string) ⇒ Object


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# File 'lib/puppet/node/environment.rb', line 489

def self.split_path(path_string)
  path_string.split(File::PATH_SEPARATOR)
end

.valid_name?(name) ⇒ Boolean

Returns true if name is valid.

Parameters:

  • name (String)

    Environment name to check for valid syntax.

Returns:

  • (Boolean)

    true if name is valid


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# File 'lib/puppet/node/environment.rb', line 126

def self.valid_name?(name)
  !!name.match(/\A\w+\Z/)
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql?


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# File 'lib/puppet/node/environment.rb', line 493

def ==(other)
  return true if other.kind_of?(Puppet::Node::Environment) &&
    self.name == other.name &&
    self.full_modulepath == other.full_modulepath &&
    self.manifest == other.manifest
end

#[](param) ⇒ Object

Return an environment-specific Puppet setting.

Parameters:

  • param (String, Symbol)

    The environment setting to look up

Returns:

  • (Object)

    The resolved setting value


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# File 'lib/puppet/node/environment.rb', line 234

def [](param)
  Puppet.settings.value(param, self.name)
end

#check_for_reparseObject

Checks if a reparse is required (cache of files is stale).


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# File 'lib/puppet/node/environment.rb', line 452

def check_for_reparse
  @lock.synchronize do
    if (Puppet[:code] != @parsed_code || @known_resource_types.parse_failed?)
      @parsed_code = nil
      @known_resource_types = nil
    end
  end
end

#configurationPuppet::Settings::EnvironmentConf

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Return the environment configuration

Returns:


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# File 'lib/puppet/node/environment.rb', line 202

def configuration
  Puppet.lookup(:environments).get_conf(name)
end

#conflicting_manifest_settings?Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Checks to make sure that this environment did not have a manifest set in its original environment.conf if Puppet is configured with disable_per_environment_manifest set true. If it did, the environment's modules may not function as intended by the original authors, and we may seek to halt a puppet compilation for a node in this environment.

The only exception to this would be if the environment.conf manifest is an exact, uninterpolated match for the current default_manifest setting.

Returns:

  • (Boolean)

    true if using directory environments, and Puppet is true, and this environment's original environment.conf had a manifest setting that is not the Puppet.


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# File 'lib/puppet/node/environment.rb', line 183

def conflicting_manifest_settings?
  return false if !Puppet[:disable_per_environment_manifest]
  original_manifest = configuration.raw_setting(:manifest)
  !original_manifest.nil? && !original_manifest.empty? && original_manifest != Puppet[:default_manifest]
end

#each_plugin_directory {|String| ... } ⇒ Object

Yields each modules' plugin directory if the plugin directory (modulename/lib) is present on the filesystem.

Yields:

  • (String)

    Yields the plugin directory from each module to the block.


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# File 'lib/puppet/node/environment.rb', line 255

def each_plugin_directory(&block)
  modules.map(&:plugin_directory).each do |lib|
    lib = Puppet::Util::Autoload.cleanpath(lib)
    yield lib if File.directory?(lib)
  end
end

#full_modulepathArray<String>

Returns All directories in the modulepath (even if they are not present on disk).

Returns:

  • (Array<String>)

    All directories in the modulepath (even if they are not present on disk)


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# File 'lib/puppet/node/environment.rb', line 146

def full_modulepath
  @modulepath
end

#hashObject


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# File 'lib/puppet/node/environment.rb', line 502

def hash
  [self.class, name, full_modulepath, manifest].hash
end

#inspectObject


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# File 'lib/puppet/node/environment.rb', line 474

def inspect
  %Q{<#{self.class}:#{self.object_id} @name="#{name}" @manifest="#{manifest}" @modulepath="#{full_modulepath.join(":")}" >}
end

#known_resource_typesPuppet::Resource::TypeCollection

Returns The current global TypeCollection.

Returns:


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# File 'lib/puppet/node/environment.rb', line 240

def known_resource_types
  @lock.synchronize do
    if @known_resource_types.nil?
      @known_resource_types = Puppet::Resource::TypeCollection.new(self)
      @known_resource_types.import_ast(perform_initial_import(), '')
    end
    @known_resource_types
  end
end

#module(name) ⇒ Puppet::Module?

Locate a module instance by the module name alone.

Parameters:

  • name (String)

    The module name

Returns:


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# File 'lib/puppet/node/environment.rb', line 268

def module(name)
  modules_by_name[name]
end

#module_by_forge_name(forge_name) ⇒ Puppet::Module?

Locate a module instance by the full forge name (EG authorname/module)

Parameters:

  • forge_name (String)

    The module name

Returns:


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# File 'lib/puppet/node/environment.rb', line 278

def module_by_forge_name(forge_name)
  _, modname = forge_name.split('/')
  found_mod = self.module(modname)
  found_mod and found_mod.forge_name == forge_name ?
    found_mod :
    nil
end

#module_requirementsHash<String, Array<Hash<String, String>>>

All module requirements for all modules in the environment modulepath

Examples:

environment.module_requirements
# => {
#   'username/amodule' => [
#     {
#       'name'    => 'username/moduledep',
#       'version' => '1.2.3',
#       'version_requirement' => '>= 1.0.0',
#     },
#     {
#       'name'    => 'username/anotherdep',
#       'version' => '4.5.6',
#       'version_requirement' => '>= 3.0.0',
#     }
#   ]
# }
#

Returns:

  • (Hash<String, Array<Hash<String, String>>>)

    See the method example for an explanation of the return value.


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# File 'lib/puppet/node/environment.rb', line 406

def module_requirements
  deps = {}

  modules.each do |mod|
    next unless mod.forge_name
    deps[mod.forge_name] ||= []

    mod.dependencies and mod.dependencies.each do |mod_dep|
      dep_name = mod_dep['name'].tr('-', '/')
      (deps[dep_name] ||= []) << {
        'name'                => mod.forge_name,
        'version'             => mod.version,
        'version_requirement' => mod_dep['version_requirement']
      }
    end
  end

  deps.each do |mod, mod_deps|
    deps[mod] = mod_deps.sort_by { |d| d['name'] }
  end

  deps
end

#modulepathArray<String>

Returns All directories present on disk in the modulepath.

Returns:

  • (Array<String>)

    All directories present on disk in the modulepath


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# File 'lib/puppet/node/environment.rb', line 138

def modulepath
  @modulepath.find_all do |p|
    Puppet::FileSystem.directory?(p)
  end
end

#modulesArray<Puppet::Module>

Note:

If multiple modules with the same name are present they will both be added, but methods like #module and #module_by_forge_name will return the first matching entry in this list.

Note:

This value is cached so that the filesystem doesn't have to be re-enumerated every time this method is invoked, since that enumeration could be a costly operation and this method is called frequently. The cache expiry is determined by `Puppet`.

Return all modules for this environment in the order they appear in the modulepath.

Returns:


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# File 'lib/puppet/node/environment.rb', line 297

def modules
  if @modules.nil?
    module_references = []
    project = Puppet.lookup(:bolt_project) { nil }
    seen_modules = if project && project.load_as_module?
                     module_references << project.to_h
                     { project.name => true }
                   else
                     {}
                   end
    modulepath.each do |path|
      Dir.entries(path).each do |name|
        next unless Puppet::Module.is_module_directory?(name, path)
        warn_about_mistaken_path(path, name)
        if not seen_modules[name]
          module_references << {:name => name, :path => File.join(path, name)}
          seen_modules[name] = true
        end
      end
    end

    @modules = module_references.collect do |reference|
      begin
        Puppet::Module.new(reference[:name], reference[:path], self)
      rescue Puppet::Module::Error => e
        Puppet.log_exception(e)
        nil
      end
    end.compact
  end
  @modules
end

#modules_by_pathHash<String, Array<Puppet::Module>>

Note:

This method changes the current working directory while enumerating the modules. This seems rather dangerous.

Modules broken out by directory in the modulepath

Returns:

  • (Hash<String, Array<Puppet::Module>>)

    A hash whose keys are file paths, and whose values is an array of Puppet Modules for that path


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# File 'lib/puppet/node/environment.rb', line 360

def modules_by_path
  modules_by_path = {}
  modulepath.each do |path|
    if Puppet::FileSystem.exist?(path)
      Dir.chdir(path) do
        module_names = Dir.entries(path).select do |name|
          Puppet::Module.is_module_directory?(name, path)
        end
        modules_by_path[path] = module_names.sort.map do |name|
          Puppet::Module.new(name, File.join(path, name), self)
        end
      end
    else
      modules_by_path[path] = []
    end
  end
  modules_by_path
end

#override_from_commandline(settings) ⇒ Puppet::Node::Environment

Creates a new Puppet::Node::Environment instance, overriding :manifest, :modulepath, or :config_version from the passed settings if they were originally set from the commandline, or returns self if there is nothing to override.

Parameters:

Returns:


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# File 'lib/puppet/node/environment.rb', line 103

def override_from_commandline(settings)
  overrides = {}

  if settings.set_by_cli?(:modulepath)
    overrides[:modulepath] = self.class.split_path(settings.value(:modulepath))
  end

  if settings.set_by_cli?(:config_version)
    overrides[:config_version] = settings.value(:config_version)
  end

  if settings.set_by_cli?(:manifest)
    overrides[:manifest] = settings.value(:manifest)
  end

  overrides.empty? ?
    self :
    self.override_with(overrides)
end

#override_with(env_params) ⇒ Puppet::Node::Environment

Creates a new Puppet::Node::Environment instance, overriding any of the passed parameters.

Parameters:

  • env_params (Hash<{Symbol => String,Array<String>}>)

    new environment parameters (:modulepath, :manifest, :config_version)

Returns:


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# File 'lib/puppet/node/environment.rb', line 88

def override_with(env_params)
  return self.class.create(name,
                    env_params[:modulepath] || modulepath,
                    env_params[:manifest] || manifest,
                    env_params[:config_version] || config_version)
end

#rich_data?Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Checks if this environment permits use of rich data types in the catalog

Returns:

  • (Boolean)

    `true` if rich data is permitted.


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# File 'lib/puppet/node/environment.rb', line 220

def rich_data?
  if @rich_data.nil?
    environment_conf = Puppet.lookup(:environments).get_conf(name)
    @rich_data = (environment_conf.nil? ? Puppet[:rich_data] : environment_conf.rich_data)
  end
  @rich_data
end

#static_catalogs?Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

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# File 'lib/puppet/node/environment.rb', line 190

def static_catalogs?
  if @static_catalogs.nil?
    environment_conf = Puppet.lookup(:environments).get_conf(name)
    @static_catalogs = (environment_conf.nil? ? Puppet[:static_catalogs] : environment_conf.static_catalogs)
  end
  @static_catalogs
end

#to_sString

Returns The stringified value of the `name` instance variable.

Returns:

  • (String)

    The stringified value of the `name` instance variable


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# File 'lib/puppet/node/environment.rb', line 469

def to_s
  name.to_s
end

#to_symSymbol

Note:

the `name` instance variable is a Symbol, but this casts the value to a String and then converts it back into a Symbol which will needlessly create an object that needs to be garbage collected

Returns The `name` value, cast to a string, then cast to a symbol.

Returns:

  • (Symbol)

    The `name` value, cast to a string, then cast to a symbol.


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# File 'lib/puppet/node/environment.rb', line 485

def to_sym
  to_s.to_sym
end

#to_yamlString

Return the name of the environment as a string interpretation of the object

Returns:

  • (String)

    The YAML interpretation of the object


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# File 'lib/puppet/node/environment.rb', line 463

def to_yaml
  to_s.to_yaml
end

#validation_errorsArray<String>

Checks the environment and settings for any conflicts

Returns:

  • (Array<String>)

    an array of validation errors


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# File 'lib/puppet/node/environment.rb', line 209

def validation_errors
  errors = []
  if conflicting_manifest_settings?
    errors << _("The 'disable_per_environment_manifest' setting is true, and the '%{env_name}' environment has an environment.conf manifest that conflicts with the 'default_manifest' setting.") % { env_name: name }
  end
  errors
end

#warn_about_mistaken_path(path, name) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Generate a warning if the given directory in a module path entry is named `lib`.

Parameters:

  • path (String)

    The module directory containing the given directory

  • name (String)

    The directory name


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# File 'lib/puppet/node/environment.rb', line 342

def warn_about_mistaken_path(path, name)
  if name == "lib"
    Puppet.debug {
      "Warning: Found directory named 'lib' in module path ('#{path}/lib'); unless you \
      are expecting to load a module named 'lib', your module path may be set incorrectly."
    }
  end
end

#with_text_domainObject

Loads module translations for the current environment once for the lifetime of the environment. Execute a block in the context of that translation domain.


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# File 'lib/puppet/node/environment.rb', line 433

def with_text_domain
  return yield if Puppet[:disable_i18n]

  if @text_domain.nil?
    @text_domain = @name
    Puppet::GettextConfig.reset_text_domain(@text_domain)
    Puppet::ModuleTranslations.load_from_modulepath(modules)
  else
    Puppet::GettextConfig.use_text_domain(@text_domain)
  end

  yield
ensure
  # Is a noop if disable_i18n is true
  Puppet::GettextConfig.clear_text_domain
end