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#
# Author:: Daniel DeLeo (<dan@chef.io>)
# Copyright:: Copyright 2015 Chef Software, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'forwardable'
require 'chef/log'
require 'chef/rest'
require 'chef/run_context'
require 'chef/config'
require 'chef/node'
require 'chef/exceptions'
class Chef
module PolicyBuilder
# PolicyBuilder that selects either a Policyfile or non-Policyfile
# implementation based on the content of the node object.
class Dynamic
extend Forwardable
attr_reader :node
attr_reader :node_name
attr_reader :ohai_data
attr_reader :json_attribs
attr_reader :override_runlist
attr_reader :events
def initialize(node_name, ohai_data, json_attribs, override_runlist, events)
@implementation = nil
@node_name = node_name
@ohai_data = ohai_data
@json_attribs = json_attribs
@override_runlist = override_runlist
@events = events
@node = nil
end
## PolicyBuilder API ##
# Loads the node state from the server, then picks the correct
# implementation class based on the node and json_attribs.
def load_node
events.node_load_start(node_name, config)
Chef::Log.debug("Building node object for #{node_name}")
@node =
if Chef::Config[:solo]
Chef::Node.build(node_name)
else
Chef::Node.find_or_create(node_name)
end
select_implementation(node)
implementation.finish_load_node(node)
node
rescue Exception => e
events.node_load_failed(node_name, e, config)
raise
end
## Delegated Public API Methods ##
def_delegator :implementation, :original_runlist
def_delegator :implementation, :run_context
def_delegator :implementation, :run_list_expansion
def_delegator :implementation, :build_node
def_delegator :implementation, :setup_run_context
def_delegator :implementation, :expand_run_list
def_delegator :implementation, :sync_cookbooks
def_delegator :implementation, :temporary_policy?
## Internal Public API ##
def implementation
@implementation or raise Exceptions::InvalidPolicybuilderCall, "#load_node must be called before other policy builder methods"
end
def select_implementation(node)
if policyfile_set_in_config? ||
policyfile_attribs_in_node_json? ||
node_has_policyfile_attrs?(node) ||
policyfile_compat_mode_config?
@implementation = Policyfile.new(node_name, ohai_data, json_attribs, override_runlist, events)
else
@implementation = ExpandNodeObject.new(node_name, ohai_data, json_attribs, override_runlist, events)
end
end
def config
Chef::Config
end
private
def node_has_policyfile_attrs?(node)
node.policy_name || node.policy_group
end
def policyfile_attribs_in_node_json?
json_attribs.key?("policy_name") || json_attribs.key?("policy_group")
end
def policyfile_set_in_config?
config[:use_policyfile] || config[:policy_name] || config[:policy_group]
end
def policyfile_compat_mode_config?
config[:deployment_group] && !config[:policy_document_native_api]
end
end
end
end
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