Class: Puppet::Resource::Catalog

Inherits:
Graph::SimpleGraph show all
Extended by:
Indirector
Includes:
Util::Tagging
Defined in:
lib/puppet/resource/catalog.rb

Overview

This class models a node catalog. It is the thing meant to be passed from server to client, and it contains all of the information in the catalog, including the resources and the relationships between them.

Defined Under Namespace

Classes: Compiler, DuplicateResourceError, Json, Msgpack, Rest, StoreConfigs, Yaml

Constant Summary

Constants included from Indirector

Indirector::BadNameRegexp

Constants included from Util::Tagging

Util::Tagging::ValidTagRegex

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Indirector

configure_routes, indirects

Methods included from Util::Tagging

#merge_into, #merge_tags_from, #raw_tagged?, #set_tags, #tag, #tag_if_valid, #tagged?, #tags, #tags=, #valid_tag?

Methods inherited from Graph::SimpleGraph

#add_edge, #add_relationship, #add_vertex, #adjacent, #dependencies, #dependents, #direct_dependencies_of, #direct_dependents_of, #directed?, #downstream_from_vertex, #each_edge, #edge?, #edges, #edges_between, #find_cycles_in_graph, #initialize_from_hash, #leaves, #matching_edges, #path_between, #paths_in_cycle, #remove_edge!, #remove_vertex!, #report_cycles_in_graph, #reversal, #size, #stringify, #tarjan, #to_a, #to_dot, #to_dot_graph, #tree_from_vertex, #upstream_from_vertex, #vertex?, #vertices, #walk, #write_cycles_to_graph

Methods included from Util::PsychSupport

#encode_with, #init_with

Constructor Details

#initialize(name = nil, environment = Puppet::Node::Environment::NONE, code_id = nil) ⇒ Catalog

Returns a new instance of Catalog.



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# File 'lib/puppet/resource/catalog.rb', line 311

def initialize(name = nil, environment = Puppet::Node::Environment::NONE, code_id = nil)
  super()
  @name = name
  @catalog_uuid = SecureRandom.uuid
  @catalog_format = 1
  @metadata = {}
  @recursive_metadata = {}
  @classes = []
  @resource_table = {}
  @resources = []
  @relationship_graph = nil

  @host_config = true
  @environment_instance = environment
  @environment = environment.to_s
  @code_id = code_id

  @aliases = {}

  if block_given?
    yield(self)
    finalize
  end
end

Instance Attribute Details

#catalog_format ⇒ Integer

Returns catalog format version number. This value is constant for a given version of Puppet; it is incremented when a new release of Puppet changes the API for the various objects that make up the catalog.

Returns:

  • (Integer) —

    catalog format version number. This value is constant for a given version of Puppet; it is incremented when a new release of Puppet changes the API for the various objects that make up the catalog.



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# File 'lib/puppet/resource/catalog.rb', line 42

def catalog_format
  @catalog_format
end

#catalog_uuid ⇒ Object

The UUID of the catalog



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# File 'lib/puppet/resource/catalog.rb', line 37

def catalog_uuid
  @catalog_uuid
end

#client_version ⇒ Object

Some metadata to help us compile and generally respond to the current state.



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# File 'lib/puppet/resource/catalog.rb', line 67

def client_version
  @client_version
end

#code_id ⇒ Object

The id of the code input to the compiler.



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# File 'lib/puppet/resource/catalog.rb', line 34

def code_id
  @code_id
end

#environment ⇒ Object

A String representing the environment for this catalog



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# File 'lib/puppet/resource/catalog.rb', line 70

def environment
  @environment
end

#environment_instance ⇒ Object

The actual environment instance that was used during compilation



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# File 'lib/puppet/resource/catalog.rb', line 73

def environment_instance
  @environment_instance
end

#from_cache ⇒ Object

Whether this catalog was retrieved from the cache, which affects whether it is written back out again.



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# File 'lib/puppet/resource/catalog.rb', line 64

def from_cache
  @from_cache
end

#host_config ⇒ Object

Whether this is a host catalog, which behaves very differently. In particular, reports are sent, graphs are made, and state is stored in the state database. If this is set incorrectly, then you often end up in infinite loops, because catalogs are used to make things that the host catalog needs.



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# File 'lib/puppet/resource/catalog.rb', line 60

def host_config
  @host_config
end

#metadata ⇒ Object

Inlined file metadata for non-recursive find A hash of title => metadata



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# File 'lib/puppet/resource/catalog.rb', line 46

def metadata
  @metadata
end

#name ⇒ Object

The host name this is a catalog for.



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# File 'lib/puppet/resource/catalog.rb', line 27

def name
  @name
end

#recursive_metadata ⇒ Object

Inlined file metadata for recursive search A hash of title => { source => [metadata, …] }



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# File 'lib/puppet/resource/catalog.rb', line 50

def recursive_metadata
  @recursive_metadata
end

#retrieval_duration ⇒ Object

How long this catalog took to retrieve. Used for reporting stats.



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# File 'lib/puppet/resource/catalog.rb', line 53

def retrieval_duration
  @retrieval_duration
end

#server_version ⇒ Object

Some metadata to help us compile and generally respond to the current state.



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# File 'lib/puppet/resource/catalog.rb', line 67

def server_version
  @server_version
end

#version ⇒ Object

The catalog version. Used for testing whether a catalog is up to date.



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# File 'lib/puppet/resource/catalog.rb', line 31

def version
  @version
end

Class Method Details

.from_data_hash(data) ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 415

def self.from_data_hash(data)
  result = new(data['name'], Puppet::Node::Environment::NONE)

  if tags = data['tags']
    result.tag(*tags)
  end

  if version = data['version']
    result.version = version
  end

  if code_id = data['code_id']
    result.code_id = code_id
  end

  if catalog_uuid = data['catalog_uuid']
    result.catalog_uuid = catalog_uuid
  end

  result.catalog_format = data['catalog_format'] || 0

  if environment = data['environment']
    result.environment = environment
    result.environment_instance = Puppet::Node::Environment.remote(environment.to_sym)
  end

  if resources = data['resources']
    result.add_resource(*resources.collect do |res|
      Puppet::Resource.from_data_hash(res)
    end)
  end

  if edges = data['edges']
    edges.each do |edge_hash|
      edge = Puppet::Relationship.from_data_hash(edge_hash)
      unless source = result.resource(edge.source)
        raise ArgumentError, _("Could not intern from data: Could not find relationship source %{source} for %{target}") %
            { source: edge.source.inspect, target: edge.target.to_s }
      end
      edge.source = source

      unless target = result.resource(edge.target)
        raise ArgumentError, _("Could not intern from data: Could not find relationship target %{target} for %{source}") %
            { target: edge.target.inspect, source: edge.source.to_s }
      end
      edge.target = target

      result.add_edge(edge)
    end
  end

  if classes = data['classes']
    result.add_class(*classes)
  end

  if metadata = data['metadata']
    result.metadata = metadata.inject({}) { |h, (k, v)| h[k] = Puppet::FileServing::Metadata.from_data_hash(v); h }
  end

  if recursive_metadata = data['recursive_metadata']
    result.recursive_metadata = recursive_metadata.inject({}) do |h, (title, source_to_meta_hash)|
      h[title] = source_to_meta_hash.inject({}) do |inner_h, (source, metas)|
        inner_h[source] = metas.map {|meta| Puppet::FileServing::Metadata.from_data_hash(meta)}
        inner_h
      end
      h
    end
  end

  result
end

Instance Method Details

#add_class(*classes) ⇒ Object

Add classes to our class list.



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# File 'lib/puppet/resource/catalog.rb', line 76

def add_class(*classes)
  classes.each do |klass|
    @classes << klass
  end

  # Add the class names as tags, too.
  tag(*classes)
end

#add_resource(*resources) ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 126

def add_resource(*resources)
  resources.each do |resource|
    add_one_resource(resource)
  end
end

#add_resource_after(other, *resources) ⇒ Object

Add ‘resources` to the catalog after `other`. WARNING: adding multiple resources will produce the reverse ordering, e.g. calling `add_resource_after(A, [B,C])` will result in `[A,C,B]`.



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# File 'lib/puppet/resource/catalog.rb', line 114

def add_resource_after(other, *resources)
  resources.each do |resource|
    other_title_key = title_key_for_ref(other.ref)
    idx = @resources.index(other_title_key)
    if idx.nil?
      raise ArgumentError, _("Cannot add resource %{resource_1} after %{resource_2} because %{resource_2} is not yet in the catalog") %
          { resource_1: resource.ref, resource_2: other.ref }
    end
    add_one_resource(resource, idx+1)
  end
end

#add_resource_before(other, *resources) ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 99

def add_resource_before(other, *resources)
  resources.each do |resource|
    other_title_key = title_key_for_ref(other.ref)
    idx = @resources.index(other_title_key)
    if idx.nil?
      raise ArgumentError, _("Cannot add resource %{resource_1} before %{resource_2} because %{resource_2} is not yet in the catalog") %
          { resource_1: resource.ref, resource_2: other.ref }
    end
    add_one_resource(resource, idx)
  end
end

#alias(resource, key) ⇒ Object

Create an alias for a resource.



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# File 'lib/puppet/resource/catalog.rb', line 184

def alias(resource, key)
  ref = resource.ref
  ref =~ /^(.+)\[/
  class_name = $1 || resource.class.name

  newref = [class_name, key].flatten

  if key.is_a? String
    ref_string = "#{class_name}[#{key}]"
    return if ref_string == ref
  end

  # LAK:NOTE It's important that we directly compare the references,
  # because sometimes an alias is created before the resource is
  # added to the catalog, so comparing inside the below if block
  # isn't sufficient.
  if existing = @resource_table[newref]
    return if existing == resource
    resource_declaration = Puppet::Util::Errors.error_location(resource.file, resource.line)
    msg = if resource_declaration.empty?
            #TRANSLATORS 'alias' should not be translated
            _("Cannot alias %{resource} to %{key}; resource %{newref} already declared") %
                { resource: ref, key: key.inspect, newref: newref.inspect }
          else
            #TRANSLATORS 'alias' should not be translated
            _("Cannot alias %{resource} to %{key} at %{resource_declaration}; resource %{newref} already declared") %
                { resource: ref, key: key.inspect, resource_declaration: resource_declaration, newref: newref.inspect }
          end
    msg += Puppet::Util::Errors.error_location_with_space(existing.file, existing.line)
    raise ArgumentError, msg
  end
  @resource_table[newref] = resource
  @aliases[ref] ||= []
  @aliases[ref] << newref
end

#apply(options = {}) {|transaction| ... } ⇒ Puppet::Transaction

Apply our catalog to the local host.

Parameters:

  • options (Hash{Symbol => Object}) (defaults to: {}) —

    a hash of options

Options Hash (options):

  • :report (Puppet::Transaction::Report) —

    The report object to log this transaction to. This is optional, and the resulting transaction will create a report if not supplied.

Yields:

  • (transaction)

Returns:



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# File 'lib/puppet/resource/catalog.rb', line 231

def apply(options = {})
  Puppet::Util::Storage.load if host_config?

  transaction = create_transaction(options)

  begin
    transaction.report.as_logging_destination do
      transaction_evaluate_time = Puppet::Util.thinmark do
        transaction.evaluate
      end
      transaction.report.add_times(:transaction_evaluation, transaction_evaluate_time)
    end
  ensure
    # Don't try to store state unless we're a host config
    # too recursive.
    Puppet::Util::Storage.store if host_config?
  end

  yield transaction if block_given?

  transaction
end

#classes ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 283

def classes
  @classes.dup
end

#clear(remove_resources = true) ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 270

def clear(remove_resources = true)
  super()
  # We have to do this so that the resources clean themselves up.
  @resource_table.values.each { |resource| resource.remove } if remove_resources
  @resource_table.clear
  @resources = []

  if @relationship_graph
    @relationship_graph.clear
    @relationship_graph = nil
  end
end

#container_of(resource) ⇒ A Resource?

Returns the resource that contains the given resource.

Parameters:

  • resource (A Resource) —

    a resource in the catalog

Returns:

  • (A Resource, nil) —

    the resource that contains the given resource



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# File 'lib/puppet/resource/catalog.rb', line 135

def container_of(resource)
  adjacent(resource, :direction => :in)[0]
end

#create_resource(type, options) ⇒ Object

Create a new resource and register it in the catalog.



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# File 'lib/puppet/resource/catalog.rb', line 288

def create_resource(type, options)
  unless klass = Puppet::Type.type(type)
    raise ArgumentError, _("Unknown resource type %{type}") % { type: type }
  end
  return unless resource = klass.new(options)

  add_resource(resource)
  resource
end

#filter(&block) ⇒ Object

filter out the catalog, applying block to each resource. If the block result is false, the resource will be kept otherwise it will be skipped



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# File 'lib/puppet/resource/catalog.rb', line 526

def filter(&block)
  # to_catalog must take place in a context where current_environment is set to the same env as the
  # environment set in the catalog (if it is set)
  # See PUP-3755
  if environment_instance
    Puppet.override({:current_environment => environment_instance}) do
      to_catalog :to_resource, &block
    end
  else
    # If catalog has no environment_instance, hope that the caller has made sure the context has the
    # correct current_environment
    to_catalog :to_resource, &block
  end
end

#finalize ⇒ Object

Make sure all of our resources are “finished”.



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# File 'lib/puppet/resource/catalog.rb', line 299

def finalize
  make_default_resources

  @resource_table.values.each { |resource| resource.finish }

  write_graph(:resources)
end

#host_config? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet/resource/catalog.rb', line 307

def host_config?
  host_config
end

#make_default_resources ⇒ Object

Make the default objects necessary for function.



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# File 'lib/puppet/resource/catalog.rb', line 337

def make_default_resources
  # We have to add the resources to the catalog, or else they won't get cleaned up after
  # the transaction.

  # First create the default scheduling objects
  Puppet::Type.type(:schedule).mkdefaultschedules.each { |res| add_resource(res) unless resource(res.ref) }

  # And filebuckets
  if bucket = Puppet::Type.type(:filebucket).mkdefaultbucket
    add_resource(bucket) unless resource(bucket.ref)
  end
end

#relationship_graph(given_prioritizer = nil) ⇒ Puppet::Graph::RelationshipGraph

The relationship_graph form of the catalog. This contains all of the dependency edges that are used for determining order.

Parameters:

  • given_prioritizer (Puppet::Graph::Prioritizer) (defaults to: nil) —

    The prioritization strategy to use when constructing the relationship graph. Defaults the being determined by the ‘ordering` setting.

Returns:



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# File 'lib/puppet/resource/catalog.rb', line 262

def relationship_graph(given_prioritizer = nil)
  if @relationship_graph.nil?
    @relationship_graph = Puppet::Graph::RelationshipGraph.new(given_prioritizer || prioritizer)
    @relationship_graph.populate_from(self)
  end
  @relationship_graph
end

#remove_resource(*resources) ⇒ Object

Remove the resource from our catalog. Notice that we also call ‘remove’ on the resource, at least until resource classes no longer maintain references to the resource instances.



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# File 'lib/puppet/resource/catalog.rb', line 353

def remove_resource(*resources)
  resources.each do |resource|
    ref = resource.ref
    title_key = title_key_for_ref(ref)
    @resource_table.delete(title_key)
    if aliases = @aliases[ref]
      aliases.each { |res_alias| @resource_table.delete(res_alias) }
      @aliases.delete(ref)
    end
    remove_vertex!(resource) if vertex?(resource)
    @relationship_graph.remove_vertex!(resource) if @relationship_graph and @relationship_graph.vertex?(resource)
    @resources.delete(title_key)
    # Only Puppet::Type kind of resources respond to :remove, not Puppet::Resource
    resource.remove if resource.respond_to?(:remove)
  end
end

#resource(type, title = nil) ⇒ Object

Look a resource up by its reference (e.g., File).



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# File 'lib/puppet/resource/catalog.rb', line 371

def resource(type, title = nil)
  # Retain type if it's a type
  type_name = type.is_a?(Puppet::CompilableResourceType) || type.is_a?(Puppet::Resource::Type) ? type.name : type
  type_name, title = Puppet::Resource.type_and_title(type_name, title)
  type = type_name if type.is_a?(String)
  title_key   = [type_name, title.to_s]
  result = @resource_table[title_key]
  if result.nil?
    # an instance has to be created in order to construct the unique key used when
    # searching for aliases, or nothing is found as it is needed by the CapabilityFinder.
    res = Puppet::Resource.new(type, title, { :environment => @environment_instance })

    # Must check with uniqueness key because of aliases or if resource transforms title in title
    # to attribute mappings.
    result = @resource_table[[type_name, res.uniqueness_key].flatten]

    if result.nil?
      resource_type = res.resource_type
      if resource_type && resource_type.is_capability?
        # @todo lutter 2015-03-10: this assumes that it is legal to just
        # mention a capability resource in code and have it automatically
        # made available, even if the current component does not require it
        result = Puppet::Resource::CapabilityFinder.find(environment, code_id, res)
        add_resource(result) if result
      end
    end
  end
  result
end

#resource_keys ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 405

def resource_keys
  @resource_table.keys
end

#resource_refs ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 401

def resource_refs
  resource_keys.collect{ |type, name| name.is_a?( String ) ? "#{type}[#{name}]" : nil}.compact
end

#resources ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 409

def resources
  @resources.collect do |key|
    @resource_table[key]
  end
end

#title_key_for_ref(ref) ⇒ Object

Returns [typename, title] when given a String with “Type”. Returns [nil, nil] if ‘[’ ‘]’ not detected.



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# File 'lib/puppet/resource/catalog.rb', line 88

def title_key_for_ref( ref )
  s = ref.index('[')
  e = ref.rindex(']')
  if s && e && e > s
    a = [ref[0, s], ref[s+1, e-s-1]]
  else
    a = [nil, nil]
  end
  return a
end

#to_data_hash ⇒ Object 



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# File 'lib/puppet/resource/catalog.rb', line 487

def to_data_hash
  metadata_hash = metadata.inject({}) { |h, (k, v)| h[k] = v.to_data_hash; h }
  recursive_metadata_hash = recursive_metadata.inject({}) do |h, (title, source_to_meta_hash)|
    h[title] = source_to_meta_hash.inject({}) do |inner_h, (source, metas)|
      inner_h[source] = metas.map {|meta| meta.to_data_hash}
      inner_h
    end
    h
  end

  {
    'tags'      => tags.to_a,
    'name'      => name,
    'version'   => version,
    'code_id'   => code_id,
    'catalog_uuid' => catalog_uuid,
    'catalog_format' => catalog_format,
    'environment'  => environment.to_s,
    'resources' => @resources.map { |v| @resource_table[v].to_data_hash },
    'edges'     => edges.map { |e| e.to_data_hash },
    'classes'   => classes,
  }.merge(metadata_hash.empty? ?
    {} : {'metadata' => metadata_hash}).merge(recursive_metadata_hash.empty? ?
      {} : {'recursive_metadata' => recursive_metadata_hash})
end

#to_ral ⇒ Object

Convert our catalog into a RAL catalog.



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# File 'lib/puppet/resource/catalog.rb', line 514

def to_ral
  to_catalog :to_ral
end

#to_resource ⇒ Object

Convert our catalog into a catalog of Puppet::Resource instances.



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# File 'lib/puppet/resource/catalog.rb', line 519

def to_resource
  to_catalog :to_resource
end

#write_class_file ⇒ Object

Store the classes in the classfile.



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# File 'lib/puppet/resource/catalog.rb', line 542

def write_class_file
  # classfile paths may contain UTF-8
  # https://puppet.com/docs/puppet/latest/configuration.html#classfile
  classfile = Puppet.settings.setting(:classfile)
  Puppet::FileSystem.open(classfile.value, classfile.mode.to_i(8), "w:UTF-8") do |f|
    f.puts classes.join("\n")
  end
rescue => detail
  Puppet.err _("Could not create class file %{file}: %{detail}") % { file: Puppet[:classfile], detail: detail }
end

#write_graph(name) ⇒ Object

Produce the graph files if requested.



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# File 'lib/puppet/resource/catalog.rb', line 574

def write_graph(name)
  # We only want to graph the main host catalog.
  return unless host_config?

  super
end

#write_resource_file ⇒ Object

Store the list of resources we manage



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# File 'lib/puppet/resource/catalog.rb', line 554

def write_resource_file
  # resourcefile contains resources that may be UTF-8 names
  # https://puppet.com/docs/puppet/latest/configuration.html#resourcefile
  resourcefile = Puppet.settings.setting(:resourcefile)
  Puppet::FileSystem.open(resourcefile.value, resourcefile.mode.to_i(8), "w:UTF-8") do |f|
    to_print = resources.map do |resource|
      next unless resource.managed?
      if resource.name_var
        "#{resource.type}[#{resource[resource.name_var]}]"
      else
        "#{resource.ref.downcase}"
      end
    end.compact
    f.puts to_print.join("\n")
  end
rescue => detail
  Puppet.err _("Could not create resource file %{file}: %{detail}") % { file: Puppet[:resourcefile], detail: detail }
end