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#
# Author:: Adam Edwards (<adamed@getchef.com>)
#
# Copyright:: 2014, Chef Software, Inc.
#
# 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/util/powershell/cmdlet'
require 'chef/util/dsc/local_configuration_manager'
require 'chef/mixin/powershell_type_coercions'
require 'chef/util/dsc/resource_store'
class Chef
class Provider
class DscResource < Chef::Provider
include Chef::Mixin::PowershellTypeCoercions
provides :dsc_resource, os: "windows"
def initialize(new_resource, run_context)
super
@new_resource = new_resource
@resource_converged = false
@module_name = new_resource.module_name
end
def action_run
if ! @resource_converged
converge_by(generate_description) do
result = set_resource
end
end
end
def load_current_resource
@resource_converged = test_resource
end
def whyrun_supported?
true
end
def define_resource_requirements
requirements.assert(:run) do |a|
a.assertion { supports_dsc_invoke_resource? }
err = "Assuming a previous resource installs Powershell 5.0.10018.0 or higher."
a.failure_message Chef::Exceptions::NoProviderAvailable,
err
a.whyrun err
a.block_action!
end
requirements.assert(:run) do |a|
a.assertion {
meta_configuration['RefreshMode'] == 'Disabled'
}
err = ["The LCM must have its RefreshMode set to Disabled. "]
a.failure_message Chef::Exceptions::NoProviderAvailable, err.join(' ')
a.whyrun err + ["Assuming a previous resource sets the RefreshMode."]
a.block_action!
end
end
protected
def local_configuration_manager
@local_configuration_manager ||= Chef::Util::DSC::LocalConfigurationManager.new(
node,
nil
)
end
def resource_store
Chef::Util::DSC::ResourceStore.instance
end
def supports_dsc_invoke_resource?
run_context && Chef::Platform.supports_dsc_invoke_resource?(node)
end
def generate_description
"Converge dsc resource"
end
def module_name
@module_name ||= begin
r = resource_store.resource(@new_resource.resource.to_s)
if r['Module']
r['Module']['Name']
else
:none
end
end
end
def test_resource
result = invoke_resource(:test)
result.return_value[0]["InDesiredState"]
end
def set_resource
result = invoke_resource(:set)
result.return_value
end
def invoke_resource(method, output_format=:object)
properties = translate_type(@new_resource.properties)
switches = "-Method #{method.to_s} -Name #{@new_resource.resource} -Property #{properties}"
if module_name != :none
switches += " -Module #{module_name}"
end
cmdlet = Chef::Util::Powershell::Cmdlet.new(
node,
"Invoke-DscResource #{switches}",
output_format
)
cmdlet.run!
end
def meta_configuration
cmdlet = Chef::Util::Powershell::Cmdlet.new(node, "Get-DscLocalConfigurationManager", :object)
result = cmdlet.run!
result.return_value
end
end
end
end
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