Class: Bolt::Inventory::Target

Inherits:
Object
  • Object
show all
Defined in:
lib/bolt/inventory/target.rb

Overview

This class represents the active state of a target within the inventory.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target_data, inventory) ⇒ Target

Returns a new instance of Target.



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# File 'lib/bolt/inventory/target.rb', line 9

def initialize(target_data, inventory)
  unless target_data['name'] || target_data['uri']
    raise Bolt::Inventory::ValidationError.new("Target must have either a name or uri", nil)
  end

  @logger = Logging.logger[inventory]

  # If the target isn't mentioned by any groups, it won't have a uri or
  # name and we will use the target_name as both
  @uri = target_data['uri']
  @uri_obj = self.class.parse_uri(@uri)

  # If the target has a name, use that as the safe name. Otherwise, turn
  # the uri into a safe name by omitting the password.
  if target_data['name']
    @name = target_data['name']
    @safe_name = target_data['name']
  else
    @name = @uri
    @safe_name = @uri_obj.omit(:password).to_str.sub(%r{^//}, '')
  end

  @config = target_data['config'] || {}
  @vars = target_data['vars'] || {}
  @facts = target_data['facts'] || {}
  @features = target_data['features'] || Set.new
  @options = target_data['options'] || {}
  @plugin_hooks = target_data['plugin_hooks'] || {}
  # When alias is specified in a plan, the key will be `target_alias`, when
  # alias is specified in inventory the key will be `alias`.
  @target_alias = target_data['target_alias'] || target_data['alias'] || []

  @inventory = inventory

  validate
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/bolt/inventory/target.rb', line 7

def name
  @name
end

#safe_name ⇒ Object (readonly)

Returns the value of attribute safe_name.



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# File 'lib/bolt/inventory/target.rb', line 7

def safe_name
  @safe_name
end

#target_alias ⇒ Object (readonly)

Returns the value of attribute target_alias.



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# File 'lib/bolt/inventory/target.rb', line 7

def target_alias
  @target_alias
end

#uri ⇒ Object (readonly)

Returns the value of attribute uri.



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# File 'lib/bolt/inventory/target.rb', line 7

def uri
  @uri
end

Class Method Details

.parse_uri(string) ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 209

def self.parse_uri(string)
  require 'addressable/uri'
  if string.nil?
    Addressable::URI.new
  # Forbid empty uri
  elsif string.empty?
    raise Bolt::ParseError, "Could not parse target URI: URI is empty string"
  elsif string =~ %r{^[^:]+://}
    Addressable::URI.parse(string)
  else
    # Initialize with an empty scheme to ensure we parse the hostname correctly
    Addressable::URI.parse("//#{string}")
  end
rescue Addressable::URI::InvalidURIError => e
  raise Bolt::ParseError, "Could not parse target URI: #{e.message}"
end

Instance Method Details

#add_facts(new_facts = {}) ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 62

def add_facts(new_facts = {})
  @facts = Bolt::Util.deep_merge(@facts, new_facts)
end

#config ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 172

def config
  Bolt::Util.deep_merge(group_cache['config'], @config)
end

#facts ⇒ Object

rubocop:enable Naming/AccessorMethodName



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# File 'lib/bolt/inventory/target.rb', line 58

def facts
  Bolt::Util.deep_merge(group_cache['facts'], @facts)
end

#features ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 66

def features
  group_cache['features'] + @features
end

#group_cache ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 176

def group_cache
  if @group_cache.nil?
    group_data = @inventory.group_data_for(@name)

    unless group_data && group_data['config']
      @logger.debug("Did not find config for #{self} in inventory")
    end

    group_data ||= {
      'config' => {},
      'vars' => {},
      'facts' => {},
      'features' => Set.new,
      'options' => {},
      'plugin_hooks' => {},
      'target_alias' => []
    }

    # This should be handled by `get_targets`
    if @name == 'localhost'
      group_data = Bolt::Inventory.localhost_defaults(group_data)
    end

    @group_cache = group_data
  end

  @group_cache
end

#host ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 138

def host
  @uri_obj.hostname || transport_config['host']
end

#invalidate_config_cache! ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 103

def invalidate_config_cache!
  @transport_config_cache = nil
end

#invalidate_group_cache! ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 97

def invalidate_group_cache!
  @group_cache = nil
  # The config cache depends on the group cache, so invalidate it as well
  invalidate_config_cache!
end

#options ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 162

def options
  transport_config.dup
end

#password ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 158

def password
  Addressable::URI.unencode_component(@uri_obj.password) || transport_config['password']
end

#plugin_hooks ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 78

def plugin_hooks
  # Merge plugin_hooks from the config file with any defined by the group
  # or assigned dynamically to the target
  @inventory.plugins.plugin_hooks.merge(group_cache['plugin_hooks']).merge(@plugin_hooks)
end

#port ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 142

def port
  @uri_obj.port || transport_config['port']
end

#protocol ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 146

def protocol
  transport
end

#set_config(key_or_key_path, value) ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 84

def set_config(key_or_key_path, value)
  if key_or_key_path.empty?
    @config = value
  else
    *path, key = Array(key_or_key_path)
    location = path.inject(@config) do |working_object, p|
      working_object[p] ||= {}
    end
    location[key] = value
  end
  invalidate_config_cache!
end

#set_feature(feature, value = true) ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 70

def set_feature(feature, value = true)
  if value
    @features << feature
  else
    @features.delete(feature)
  end
end

#set_var(var_hash) ⇒ Object

This method isn’t actually an accessor and we want the name to correspond to the Puppet function rubocop:disable Naming/AccessorMethodName



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# File 'lib/bolt/inventory/target.rb', line 53

def set_var(var_hash)
  @vars.merge!(var_hash)
end

#to_s ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 205

def to_s
  @safe_name
end

#transport ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 150

def transport
  @uri_obj.scheme || transport_config_cache['transport']
end

#transport_config ⇒ Object

We only want to look up transport config keys for the configured transport



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# File 'lib/bolt/inventory/target.rb', line 168

def transport_config
  transport_config_cache['transports'][transport.to_sym]
end

#transport_config_cache ⇒ Object

Computing the transport config is expensive as it requires cloning the base config, so we cache the effective config



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# File 'lib/bolt/inventory/target.rb', line 109

def transport_config_cache
  if @transport_config_cache.nil?
    merged_config = Bolt::Util.deep_merge(group_cache['config'], @config)
    # Use the base config to ensure we handle the config validation and
    # munging correctly
    config = @inventory.config.deep_clone
    config.update_from_inventory(merged_config)
    config.validate
    @transport_config_cache = {
      'transport' => config.transport_conf[:transport],
      'transports' => config.transport_conf[:transports]
    }
  end

  @transport_config_cache
end

#user ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 154

def user
  Addressable::URI.unencode_component(@uri_obj.user) || transport_config['user']
end

#validate ⇒ Object

Validate the target. This implicitly also primes the group and config caches and resolves any config references in the target’s groups.



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# File 'lib/bolt/inventory/target.rb', line 128

def validate
  unless name.ascii_only?
    raise Bolt::Inventory::ValidationError.new("Target name must be ASCII characters: #{@name}", nil)
  end

  unless transport.nil? || Bolt::TRANSPORTS.include?(transport.to_sym)
    raise Bolt::UnknownTransportError.new(transport, uri)
  end
end

#vars ⇒ Object 



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# File 'lib/bolt/inventory/target.rb', line 46

def vars
  group_cache['vars'].merge(@vars)
end