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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2008 Opscode, 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 'chef/mixin/params_validate'
require 'chef/node'
require 'chef/resource_collection'
require 'chef/platform'
class Chef
class Runner
include Chef::Mixin::ParamsValidate
attr_reader :node, :collection, :definitions, :cookbook_loader
def initialize(node, collection, definitions={}, cookbook_loader=nil)
validate(
{
:node => node,
:collection => collection,
},
{
:node => {
:kind_of => Chef::Node,
},
:collection => {
:kind_of => Chef::ResourceCollection,
},
}
)
@node = node
@collection = collection
@definitions = definitions
@cookbook_loader = cookbook_loader
end
def build_provider(resource)
provider_klass = Chef::Platform.find_provider_for_node(@node, resource)
Chef::Log.debug("#{resource} using #{provider_klass.to_s}")
provider = provider_klass.new(@node, resource, @collection, @definitions, @cookbook_loader)
provider.load_current_resource
provider
end
def run_action(resource, ra)
provider = build_provider(resource)
provider.send("action_#{ra}")
if resource.updated
resource.actions.each_key do |action|
if resource.actions[action].has_key?(:immediate)
resource.actions[action][:immediate].each do |r|
Chef::Log.info("#{resource} sending #{action} action to #{r} (immediate)")
run_action(r, action)
end
end
if resource.actions[action].has_key?(:delayed)
resource.actions[action][:delayed].each do |r|
@delayed_actions[r] = Hash.new unless @delayed_actions.has_key?(r)
unless @delayed_actions[r].has_key?(action)
@ordered_delayed_actions << [r, action]
@delayed_actions[r][action] = Array.new
end
@delayed_actions[r][action] << lambda {
Chef::Log.info("#{resource} sending #{action} action to #{r} (delayed)")
}
end
end
end
end
end
def converge
@delayed_actions = Hash.new
@ordered_delayed_actions = []
@collection.execute_each_resource do |resource|
begin
Chef::Log.debug("Processing #{resource}")
# Check if this resource has an only_if block - if it does, skip it.
if resource.only_if
unless Chef::Mixin::Command.only_if(resource.only_if, resource.only_if_args)
Chef::Log.debug("Skipping #{resource} due to only_if")
next
end
end
# Check if this resource has a not_if block - if it does, skip it.
if resource.not_if
unless Chef::Mixin::Command.not_if(resource.not_if, resource.not_if_args)
Chef::Log.debug("Skipping #{resource} due to not_if")
next
end
end
# Walk the actions for this resource, building the provider and running each.
action_list = resource.action.kind_of?(Array) ? resource.action : [ resource.action ]
action_list.each do |ra|
run_action(resource, ra)
end
rescue => e
Chef::Log.error("#{resource} (#{resource.source_line}) had an error:\n#{e}\n#{e.backtrace.join("\n")}")
raise e unless resource.ignore_failure
end
end
# Run all our :delayed actions
@ordered_delayed_actions.each do |resource, action|
log_array = @delayed_actions[resource][action]
log_array.each { |l| l.call } # Call each log message
run_action(resource, action)
end
true
end
end
end
|
