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path: root/lib/chef/resource/mdadm.rb
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#
# Author:: Joe Williams (<joe@joetify.com>)
# Author:: Tyler Cloke (<tyler@chef.io>)
# Copyright:: Copyright 2009-2016, Joe Williams
# 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/resource"

class Chef
  class Resource
    # Use the mdadm resource to manage RAID devices in a Linux environment using the mdadm utility. The mdadm resource
    # will create and assemble an array, but it will not create the config file that is used to persist the array upon
    # reboot. If the config file is required, it must be done by specifying a template with the correct array layout,
    # and then by using the mount provider to create a file systems table (fstab) entry.
    class Mdadm < Chef::Resource

      identity_attr :raid_device

      state_attrs :devices, :level, :chunk

      default_action :create
      allowed_actions :create, :assemble, :stop

      def initialize(name, run_context = nil)
        super

        @chunk = 16
        @devices = []
        @exists = false
        @level = 1
        @metadata = "0.90"
        @bitmap = nil
        @raid_device = name
        @layout = nil
      end

      def chunk(arg = nil)
        set_or_return(
          :chunk,
          arg,
          :kind_of => [ Integer ]
        )
      end

      def devices(arg = nil)
        set_or_return(
          :devices,
          arg,
          :kind_of => [ Array ]
        )
      end

      def exists(arg = nil)
        set_or_return(
          :exists,
          arg,
          :kind_of => [ TrueClass, FalseClass ]
        )
      end

      def level(arg = nil)
        set_or_return(
          :level,
          arg,
          :kind_of => [ Integer ]
        )
      end

      def metadata(arg = nil)
        set_or_return(
          :metadata,
          arg,
          :kind_of => [ String ]
        )
      end

      def bitmap(arg = nil)
        set_or_return(
          :bitmap,
          arg,
          :kind_of => [ String ]
        )
      end

      def raid_device(arg = nil)
        set_or_return(
          :raid_device,
          arg,
          :kind_of => [ String ]
        )
      end

      def layout(arg = nil)
        set_or_return(
          :layout,
          arg,
          :kind_of => [ String ]
        )
      end

    end
  end
end