### Home Classes Methods

### In Files

- lib/chef/node/attribute_collections.rb
- lib/chef/node/immutable_collections.rb
- lib/chef/node/attribute.rb
- lib/chef/node.rb

### Parent

Object

### Namespace

- MODULE Chef::Node::Immutablize
- CLASS Chef::Node::AttrArray
- CLASS Chef::Node::Attribute
- CLASS Chef::Node::ImmutableArray
- CLASS Chef::Node::ImmutableMash
- CLASS Chef::Node::VividMash

### Methods

- ::build
- ::find_or_create
- ::json_create
- ::list
- ::list_by_environment
- ::load
- ::new
- #[]
- #apply_expansion_attributes
- #attribute
- #attribute?
- #attributes
- #automatic_attrs
- #automatic_attrs=
- #chef_environment
- #chef_environment=
- #chef_server_rest
- #construct_attributes
- #consume_attributes
- #consume_external_attrs
- #consume_run_list
- #create
- #default
- #default!
- #default_attrs
- #default_attrs=
- #default_unless
- #destroy
- #display_hash
- #each
- #each_attribute
- #environment
- #expand!
- #for_json
- #method_missing
- #name
- #node
- #normal
- #normal_attrs
- #normal_attrs=
- #normal_unless
- #override
- #override!
- #override_attrs
- #override_attrs=
- #override_unless
- #recipe?
- #reset_defaults_and_overrides
- #role?
- #run_list?
- #save
- #set
- #set_unless
- #tags
- #to_hash
- #to_json
- #to_s
- #update_from!

### Included Modules

- Chef::Mixin::FromFile
- Chef::DSL::IncludeAttribute
- Chef::DSL::PlatformIntrospection
- Chef::Mixin::ParamsValidate

### Files

- LICENSE

### Class/Module Index

Quicksearch

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- Chef::Resource::LWRPBase
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- Chef::Resource::Subversion
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- Chef::Resource::TimestampedDeploy
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- Chef::Resource::YumPackage
- Chef::ResourceCollection
- Chef::ResourceCollection::StepableIterator
- Chef::ResourceDefinition
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- Chef::ResourceReporter
- Chef::ResourceReporter::ResourceReport
- Chef::Role
- Chef::RunContext
- Chef::RunContext::CookbookCompiler
- Chef::RunList
- Chef::RunList::RunListExpansion
- Chef::RunList::RunListExpansionFromAPI
- Chef::RunList::RunListExpansionFromDisk
- Chef::RunList::RunListItem
- Chef::RunList::VersionedRecipeList
- Chef::RunLock
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- Chef::Runner
- Chef::Sandbox
- Chef::ScanAccessControl
- Chef::Search
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- Chef::ShellOut
- Chef::StreamingCookbookUploader
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- Chef::StreamingCookbookUploader::StreamPart
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- Chef::User
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- Chef::Util::Windows::NetGroup
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- Chef::Version
- Chef::VersionConstraint
- Chef::Win32
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- Shell
- Shell::ClientSession
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- Shell::ModelWrapper
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- Net
- Net::HTTPError
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- ChefNetHTTPExceptionExtensions
- Dir
- FalseClass
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- Symbol
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No matching classes.

# Chef::Node

### Attributes

recipe_list[RW]
run_context[RW]

RunContext will set itself as run_context via this setter when initialized. This is needed so DSL::IncludeAttribute (in particular, include_recipe) can access the run_context to determine if an attributes file has been seen yet.

run_list[RW]
run_state[RW]

### Public Class Methods

build(node_name) click to toggle source

    # File lib/chef/node.rb, line 464
    def self.build(node_name)
      node = new
      node.name(node_name)
      node.chef_environment(Chef::Config[:environment]) unless Chef::Config[:environment].nil? || Chef::Config[:environment].chop.empty?
      node
    end

find_or_create(node_name) click to toggle source

    # File lib/chef/node.rb, line 456
    def self.find_or_create(node_name)
      load(node_name)
    rescue Net::HTTPServerException => e
      raise unless e.response.code == '404'
      node = build(node_name)
      node.create
    end

json_create(o) click to toggle source

Create a Chef::Node from JSON

    # File lib/chef/node.rb, line 414
    def self.json_create(o)
      node = new
      node.name(o["name"])
      node.chef_environment(o["chef_environment"])
      if o.has_key?("attributes")
        node.normal_attrs = o["attributes"]
      end
      node.automatic_attrs = Mash.new(o["automatic"]) if o.has_key?("automatic")
      node.normal_attrs = Mash.new(o["normal"]) if o.has_key?("normal")
      node.default_attrs = Mash.new(o["default"]) if o.has_key?("default")
      node.override_attrs = Mash.new(o["override"]) if o.has_key?("override")

      if o.has_key?("run_list")
        node.run_list.reset!(o["run_list"])
      else
        o["recipes"].each { |r| node.recipes << r }
      end
      node
    end

list(inflate=false) click to toggle source

    # File lib/chef/node.rb, line 444
    def self.list(inflate=false)
      if inflate
        response = Hash.new
        Chef::Search::Query.new.search(:node) do |n|
          response[n.name] = n unless n.nil?
        end
        response
      else
        Chef::REST.new(Chef::Config[:chef_server_url]).get_rest("nodes")
      end
    end

list_by_environment(environment, inflate=false) click to toggle source

    # File lib/chef/node.rb, line 434
    def self.list_by_environment(environment, inflate=false)
      if inflate
        response = Hash.new
        Chef::Search::Query.new.search(:node, "chef_environment:#{environment}") {|n| response[n.name] = n unless n.nil?}
        response
      else
        Chef::REST.new(Chef::Config[:chef_server_url]).get_rest("environments/#{environment}/nodes")
      end
    end

load(name) click to toggle source

Load a node by name

    # File lib/chef/node.rb, line 472
    def self.load(name)
      Chef::REST.new(Chef::Config[:chef_server_url]).get_rest("nodes/#{name}")
    end

new() click to toggle source

Create a new Chef::Node object.

    # File lib/chef/node.rb, line 62
    def initialize
      @name = nil

      @chef_environment = '_default'
      @run_list = Chef::RunList.new

      @attributes = Chef::Node::Attribute.new({}, {}, {}, {})

      @run_state = {}
    end

### Public Instance Methods

[](attrib) click to toggle source

Return an attribute of this node. Returns nil if the attribute is not found.

    # File lib/chef/node.rb, line 119
    def [](attrib)
      attributes[attrib]
    end

apply_expansion_attributes(expansion) click to toggle source

Apply the default and overrides attributes from the expansion passed in, which came from roles.

    # File lib/chef/node.rb, line 341
    def apply_expansion_attributes(expansion)
      loaded_environment = if chef_environment == "_default"
                             Chef::Environment.new.tap {|e| e.name("_default")}
                           else
                             Chef::Environment.load(chef_environment)
                           end

      attributes.env_default = loaded_environment.default_attributes
      attributes.env_override = loaded_environment.override_attributes

      attribute.role_default = expansion.default_attrs
      attributes.role_override = expansion.override_attrs
    end

attribute() click to toggle source
Alias for: attributes
attribute?(attrib) click to toggle source

Return true if this Node has a given attribute, false if not. Takes either a symbol or a string.

Only works on the top level. Preferred way is to use the normal [] style lookup and call attribute?()

    # File lib/chef/node.rb, line 220
    def attribute?(attrib)
      attributes.attribute?(attrib)
    end

attributes() click to toggle source

    # File lib/chef/node.rb, line 111
    def attributes
      @attributes
    end

Also aliased as: attribute, construct_attributes
automatic_attrs() click to toggle source

    # File lib/chef/node.rb, line 207
    def automatic_attrs
      attributes.automatic
    end

automatic_attrs=(new_values) click to toggle source

    # File lib/chef/node.rb, line 211
    def automatic_attrs=(new_values)
      attributes.automatic = new_values
    end

chef_environment(arg=nil) click to toggle source

    # File lib/chef/node.rb, line 97
    def chef_environment(arg=nil)
      set_or_return(
        :chef_environment,
        arg,
        { :regex => /^[\-[:alnum:]_]+$/, :kind_of => String }
      )
    end

Also aliased as: environment
chef_environment=(environment) click to toggle source

    # File lib/chef/node.rb, line 105
    def chef_environment=(environment)
      chef_environment(environment)
    end

chef_server_rest() click to toggle source

    # File lib/chef/node.rb, line 78
    def chef_server_rest
      Chef::REST.new(Chef::Config[:chef_server_url])
    end

construct_attributes() click to toggle source
Alias for: attributes
consume_attributes(attrs) click to toggle source

Consumes the combined run_list and other attributes in `attrs`

    # File lib/chef/node.rb, line 280
    def consume_attributes(attrs)
      normal_attrs_to_merge = consume_run_list(attrs)
      Chef::Log.debug("Applying attributes from json file")
      self.normal_attrs = Chef::Mixin::DeepMerge.merge(normal_attrs,normal_attrs_to_merge)
      self.tags # make sure they're defined
    end

consume_external_attrs(ohai_data, json_cli_attrs) click to toggle source

Consume data from ohai and Attributes provided as JSON on the command line.

    # File lib/chef/node.rb, line 267
    def consume_external_attrs(ohai_data, json_cli_attrs)
      Chef::Log.debug("Extracting run list from JSON attributes provided on command line")
      consume_attributes(json_cli_attrs)

      self.automatic_attrs = ohai_data

      platform, version = Chef::Platform.find_platform_and_version(self)
      Chef::Log.debug("Platform is #{platform} version #{version}")
      self.automatic[:platform] = platform
      self.automatic[:platform_version] = version
    end

consume_run_list(attrs) click to toggle source

Extracts the run list from `attrs` and applies it. Returns the remaining attributes

    # File lib/chef/node.rb, line 294
    def consume_run_list(attrs)
      attrs = attrs ? attrs.dup : {}
      if new_run_list = attrs.delete("recipes") || attrs.delete("run_list")
        if attrs.key?("recipes") || attrs.key?("run_list")
          raise Chef::Exceptions::AmbiguousRunlistSpecification, "please set the node's run list using the 'run_list' attribute only."
        end
        Chef::Log.info("Setting the run_list to #{new_run_list.inspect} from JSON")
        run_list(new_run_list)
      end
      attrs
    end

create() click to toggle source

Create the node via the REST API

    # File lib/chef/node.rb, line 499
    def create
      chef_server_rest.post_rest("nodes", self)
      self
    end

default() click to toggle source

Set a default of this node, but auto-vivify any Mashes that might be missing

    # File lib/chef/node.rb, line 142
    def default
      attributes.set_unless_value_present = false
      attributes.default
    end

default!() click to toggle source

Set a force default attribute. Intermediate mashes will be created by auto-vivify if necessary.

    # File lib/chef/node.rb, line 149
    def default!
      attributes.set_unless_value_present = false
      attributes.default!
    end

default_attrs() click to toggle source

    # File lib/chef/node.rb, line 191
    def default_attrs
      attributes.default
    end

default_attrs=(new_values) click to toggle source

    # File lib/chef/node.rb, line 195
    def default_attrs=(new_values)
      attributes.default = new_values
    end

default_unless() click to toggle source

Set a default attribute of this node, auto-vivifying any mashes that are missing, but if the final value already exists, don't set it

    # File lib/chef/node.rb, line 156
    def default_unless
      attributes.set_unless_value_present = true
      attributes.default
    end

destroy() click to toggle source

Remove this node via the REST API

    # File lib/chef/node.rb, line 477
    def destroy
      chef_server_rest.delete_rest("nodes/#{name}")
    end

display_hash() click to toggle source

    # File lib/chef/node.rb, line 370
    def display_hash
      display = {}
      display["name"]             = name
      display["chef_environment"] = chef_environment
      display["automatic"]        = automatic_attrs
      display["normal"]           = normal_attrs
      display["default"]          = attributes.combined_default
      display["override"]         = attributes.combined_override
      display["run_list"]         = run_list.run_list
      display
    end

each(&block) click to toggle source

Yield each key of the top level to the block.

    # File lib/chef/node.rb, line 225
    def each(&block)
      attributes.each(&block)
    end

each_attribute(&block) click to toggle source

Iterates over each attribute, passing the attribute and value to the block.

    # File lib/chef/node.rb, line 230
    def each_attribute(&block)
      attributes.each_attribute(&block)
    end

environment(arg=nil) click to toggle source
Alias for: chef_environment
expand!(data_source = 'server') click to toggle source

Expands the node's run list and sets the default and override attributes. Also applies stored attributes (from json provided on the command line)

Returns the fully-expanded list of recipes, a RunListExpansion.

    # File lib/chef/node.rb, line 325
    def expand!(data_source = 'server')
      expansion = run_list.expand(chef_environment, data_source)
      raise Chef::Exceptions::MissingRole, expansion if expansion.errors?

      self.tags # make sure they're defined

      automatic_attrs[:recipes] = expansion.recipes
      automatic_attrs[:roles] = expansion.roles

      apply_expansion_attributes(expansion)

      expansion
    end

for_json() click to toggle source

    # File lib/chef/node.rb, line 387
    def for_json
      result = {
        "name" => name,
        "chef_environment" => chef_environment,
        'json_class' => self.class.name,
        "automatic" => attributes.automatic,
        "normal" => attributes.normal,
        "chef_type" => "node",
        "default" => attributes.combined_default,
        "override" => attributes.combined_override,
        #Render correctly for run_list items so malformed json does not result
        "run_list" => run_list.run_list.map { |item| item.to_s }
      }
      result
    end

method_missing(symbol, *args) click to toggle source

Only works for attribute fetches, setting is no longer supported

    # File lib/chef/node.rb, line 235
    def method_missing(symbol, *args)
      attributes.send(symbol, *args)
    end

name(arg=nil) click to toggle source

Set the name of this Node, or return the current name.

    # File lib/chef/node.rb, line 83
    def name(arg=nil)
      if arg != nil
        validate(
                 {:name => arg },
                 {:name => { :kind_of => String,
                     :cannot_be => :blank,
                     :regex => /^[\-[:alnum:]_:.]+$/}
                 })
        @name = arg
      else
        @name
      end
    end

node() click to toggle source

Used by DSL

    # File lib/chef/node.rb, line 74
    def node
      self
    end

normal() click to toggle source

Set a normal attribute of this node, but auto-vivify any Mashes that might be missing

    # File lib/chef/node.rb, line 125
    def normal
      attributes.set_unless_value_present = false
      attributes.normal
    end

Also aliased as: set
normal_attrs() click to toggle source

    # File lib/chef/node.rb, line 199
    def normal_attrs
      attributes.normal
    end

normal_attrs=(new_values) click to toggle source

    # File lib/chef/node.rb, line 203
    def normal_attrs=(new_values)
      attributes.normal = new_values
    end

normal_unless() click to toggle source

Set a normal attribute of this node, auto-vivifying any mashes that are missing, but if the final value already exists, don't set it

    # File lib/chef/node.rb, line 134
    def normal_unless
      attributes.set_unless_value_present = true
      attributes.normal
    end

Also aliased as: set_unless
override() click to toggle source

Set an override attribute of this node, but auto-vivify any Mashes that might be missing

    # File lib/chef/node.rb, line 163
    def override
      attributes.set_unless_value_present = false
      attributes.override
    end

override!() click to toggle source

Set a force override attribute. Intermediate mashes will be created by auto-vivify if needed.

    # File lib/chef/node.rb, line 170
    def override!
      attributes.set_unless_value_present = false
      attributes.override!
    end

override_attrs() click to toggle source

    # File lib/chef/node.rb, line 183
    def override_attrs
     attributes.override
    end

override_attrs=(new_values) click to toggle source

    # File lib/chef/node.rb, line 187
    def override_attrs=(new_values)
      attributes.override = new_values
    end

override_unless() click to toggle source

Set an override attribute of this node, auto-vivifying any mashes that are missing, but if the final value already exists, don't set it

    # File lib/chef/node.rb, line 177
    def override_unless
      attributes.set_unless_value_present = true
      attributes.override
    end

recipe?(recipe_name) click to toggle source

Returns true if this Node expects a given recipe, false if not.

First, the run list is consulted to see whether the recipe is explicitly included. If it's not there, it looks in `node`, which is populated when the run_list is expanded

NOTE: It's used by cookbook authors

    # File lib/chef/node.rb, line 246
    def recipe?(recipe_name)
      run_list.include?(recipe_name) || Array(self[:recipes]).include?(recipe_name)
    end

reset_defaults_and_overrides() click to toggle source

Clear defaults and overrides, so that any deleted attributes between runs are still gone.

    # File lib/chef/node.rb, line 308
    def reset_defaults_and_overrides
      self.default.clear
      self.override.clear
    end

role?(role_name) click to toggle source

Returns true if this Node expects a given role, false if not.

    # File lib/chef/node.rb, line 251
    def role?(role_name)
      run_list.include?("role[#{role_name}]")
    end

run_list?(item) click to toggle source

Returns true if this Node expects a given role, false if not.

    # File lib/chef/node.rb, line 262
    def run_list?(item)
      run_list.detect { |r| r == item } ? true : false
    end

save() click to toggle source

Save this node via the REST API

    # File lib/chef/node.rb, line 482
    def save
      # Try PUT. If the node doesn't yet exist, PUT will return 404,
      # so then POST to create.
      begin
        if Chef::Config[:why_run]
          Chef::Log.warn("In whyrun mode, so NOT performing node save.")
        else
          chef_server_rest.put_rest("nodes/#{name}", self)
        end
      rescue Net::HTTPServerException => e
        raise e unless e.response.code == "404"
        chef_server_rest.post_rest("nodes", self)
      end
      self
    end

set() click to toggle source
Alias for: normal
set_unless() click to toggle source
Alias for: normal_unless
tags() click to toggle source

Lazy initializer for tags attribute

    # File lib/chef/node.rb, line 288
    def tags
      normal[:tags] = [] unless attribute?(:tags)
      normal[:tags]
    end

to_hash() click to toggle source

Transform the node to a Hash

    # File lib/chef/node.rb, line 356
    def to_hash
      index_hash = Hash.new
      index_hash["chef_type"] = "node"
      index_hash["name"] = name
      index_hash["chef_environment"] = chef_environment
      attribute.each do |key, value|
        index_hash[key] = value
      end
      index_hash["recipe"] = run_list.recipe_names if run_list.recipe_names.length > 0
      index_hash["role"] = run_list.role_names if run_list.role_names.length > 0
      index_hash["run_list"] = run_list.run_list if run_list.run_list.length > 0
      index_hash
    end

to_json(*a) click to toggle source

Serialize this object as a hash

    # File lib/chef/node.rb, line 383
    def to_json(*a)
      for_json.to_json(*a)
    end

to_s() click to toggle source

    # File lib/chef/node.rb, line 504
    def to_s
      "node[#{name}]"
    end

update_from!(o) click to toggle source

    # File lib/chef/node.rb, line 403
    def update_from!(o)
      run_list.reset!(o.run_list)
      self.automatic_attrs = o.automatic_attrs
      self.normal_attrs = o.normal_attrs
      self.override_attrs = o.override_attrs
      self.default_attrs = o.default_attrs
      chef_environment(o.chef_environment)
      self
    end

[Validate]

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