gistfile1.txt

# something that allocates X volumes of Y size and stripes
# them into a single volume, and mounts/fstab's that volume
#

action :create do

  aws = data_bag_item('credentials', 'aws')
  ebs_devices = []
  lvm_devices = []
  block = 'f'

  if ::File.blockdev?('/dev/xvda1')
    block_dev = '/dev/xvd'
  else
    block_dev = '/dev/sd'
  end

  new_resource.volumes.times do
    ebs_devices << block.dup
    lvm_devices << "#{ block_dev }#{ block }"
    block.next!
  end

  ebs_devices.each do |vol|

    ebs_res_name = "ebs_#{ vol }"

    aws_ebs_volume ebs_res_name do
      size new_resource.size
      device "/dev/sd#{ vol }"
      aws_secret_access_key aws['ebs']['secret_access_key']
      aws_access_key aws['ebs']['access_key_id']
      action [:create, :attach]
    end

  end

  sanitized_name = new_resource.mount_point.gsub('/', '_')
  mp = { 'location' => new_resource.mount_point }
  fs = new_resource.filesystem
  vols = new_resource.volumes

  lvm_volume_group "vg#{ sanitized_name }" do
    physical_volumes lvm_devices
    logical_volume "lv#{ sanitized_name }" do
      size        '100%VG'
      mount_point mp
      stripes     vols
      filesystem  fs
    end
  end

  new_resource.updated_by_last_action(true)

end