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Diffstat (limited to 'lib/chef/resource/windows_pagefile.rb')
| -rw-r--r-- | lib/chef/resource/windows_pagefile.rb | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/lib/chef/resource/windows_pagefile.rb b/lib/chef/resource/windows_pagefile.rb new file mode 100644 index 0000000000..f657384234 --- /dev/null +++ b/lib/chef/resource/windows_pagefile.rb @@ -0,0 +1,164 @@ +# +# +# +# Copyright:: 2012-2017, Nordstrom, Inc. +# Copyright:: 2017, 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. +# + +class Chef + class Resource + # @author Kevin Moser <kevin.moser@nordstrom.com> + # Configures the file that provides virtual memory for applications requiring + # more memory than available RAM or that are paged out to free up memory in use. + class WindowsPagefile < Chef::Resource + + property :name, String, name_property: true + property :system_managed, [true, false] + property :automatic_managed, [true, false], default: false + property :initial_size, Integer + property :maximum_size, Integer + + include Chef::Mixin::ShellOut + include Windows::Helper + + action :set do + pagefile = new_resource.name + initial_size = new_resource.initial_size + maximum_size = new_resource.maximum_size + system_managed = new_resource.system_managed + automatic_managed = new_resource.automatic_managed + + if automatic_managed + set_automatic_managed unless automatic_managed? + else + unset_automatic_managed if automatic_managed? + + # Check that the resource is not just trying to unset automatic managed, if it is do nothing more + if (initial_size && maximum_size) || system_managed + validate_name + create(pagefile) unless exists?(pagefile) + + if system_managed + set_system_managed(pagefile) unless max_and_min_set?(pagefile, 0, 0) + else + unless max_and_min_set?(pagefile, initial_size, maximum_size) + set_custom_size(pagefile, initial_size, maximum_size) + end + end + end + end + end + + action :delete do + validate_name + pagefile = new_resource.name + delete(pagefile) if exists?(pagefile) + end + + action_class do + def validate_name + return if /^.:.*.sys/ =~ new_resource.name + raise "#{new_resource.name} does not match the format DRIVE:\\path\\file.sys for pagefiles. Example: C:\\pagefile.sys" + end + + def exists?(pagefile) + @exists ||= begin + Chef::Log.debug("Checking if #{pagefile} exists by runing: #{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" list /format:list") + cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" list /format:list", returns: [0]) + cmd.stderr.empty? && (cmd.stdout =~ /SettingID=#{get_setting_id(pagefile)}/i) + end + end + + def max_and_min_set?(pagefile, min, max) + @max_and_min_set ||= begin + Chef::Log.debug("Checking if #{pagefile} min: #{min} and max #{max} are set") + cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" list /format:list", returns: [0]) + cmd.stderr.empty? && (cmd.stdout =~ /InitialSize=#{min}/i) && (cmd.stdout =~ /MaximumSize=#{max}/i) + end + end + + def create(pagefile) + converge_by("create pagefile #{pagefile}") do + Chef::Log.debug("Running #{wmic} pagefileset create name=\"#{win_friendly_path(pagefile)}\"") + cmd = shell_out("#{wmic} pagefileset create name=\"#{win_friendly_path(pagefile)}\"") + check_for_errors(cmd.stderr) + end + end + + def delete(pagefile) + converge_by("remove pagefile #{pagefile}") do + Chef::Log.debug("Running #{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" delete") + cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" delete") + check_for_errors(cmd.stderr) + end + end + + def automatic_managed? + @automatic_managed ||= begin + Chef::Log.debug("Checking if pagefiles are automatically managed") + cmd = shell_out("#{wmic} computersystem where name=\"%computername%\" get AutomaticManagedPagefile /format:list") + cmd.stderr.empty? && (cmd.stdout =~ /AutomaticManagedPagefile=TRUE/i) + end + end + + def set_automatic_managed + converge_by("set pagefile to Automatic Managed") do + Chef::Log.debug("Running #{wmic} computersystem where name=\"%computername%\" set AutomaticManagedPagefile=True") + cmd = shell_out("#{wmic} computersystem where name=\"%computername%\" set AutomaticManagedPagefile=True") + check_for_errors(cmd.stderr) + end + end + + def unset_automatic_managed + converge_by("set pagefile to User Managed") do + Chef::Log.debug("Running #{wmic} computersystem where name=\"%computername%\" set AutomaticManagedPagefile=False") + cmd = shell_out("#{wmic} computersystem where name=\"%computername%\" set AutomaticManagedPagefile=False") + check_for_errors(cmd.stderr) + end + end + + def set_custom_size(pagefile, min, max) + converge_by("set #{pagefile} to InitialSize=#{min} & MaximumSize=#{max}") do + Chef::Log.debug("Running #{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" set InitialSize=#{min},MaximumSize=#{max}") + cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" set InitialSize=#{min},MaximumSize=#{max}", returns: [0]) + check_for_errors(cmd.stderr) + end + end + + def set_system_managed(pagefile) # rubocop: disable Style/AccessorMethodName + converge_by("set #{pagefile} to System Managed") do + Chef::Log.debug("Running #{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" set InitialSize=0,MaximumSize=0") + cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" set InitialSize=0,MaximumSize=0", returns: [0]) + check_for_errors(cmd.stderr) + end + end + + def get_setting_id(pagefile) + pagefile = win_friendly_path(pagefile) + pagefile = pagefile.split('\\') + "#{pagefile[1]} @ #{pagefile[0]}" + end + + def check_for_errors(stderr) + raise stderr.chomp unless stderr.empty? + end + + def wmic + @wmic ||= locate_sysnative_cmd("wmic.exe") + end + end + end + end +end |