Class: PackerFiles::Core::VolumeGroup

Inherits:
Base
  • Object
show all
Defined in:
lib/PackerFiles/Core/VolumeGroup.rb

Overview

Volume Group abstracts out LVM.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Base

doc_file

Constructor Details

#initialize {|_self| ... } ⇒ VolumeGroup

Constructor to just specify accessor varibales

Yields:

  • (_self)

Yield Parameters:



19
20
21
22
23
 
# File 'lib/PackerFiles/Core/VolumeGroup.rb', line 19

def initialize
  @disk_names = []
  @lvs        = []
  yield self if block_given?
end

Instance Attribute Details

#disk_names ⇒ Object

Returns the value of attribute disk_names.



15
16
17
 
# File 'lib/PackerFiles/Core/VolumeGroup.rb', line 15

def disk_names
  @disk_names
end

#lvs ⇒ Object

Returns the value of attribute lvs.



16
17
18
 
# File 'lib/PackerFiles/Core/VolumeGroup.rb', line 16

def lvs
  @lvs
end

#name ⇒ Object

Specify attributes



14
15
16
 
# File 'lib/PackerFiles/Core/VolumeGroup.rb', line 14

def name
  @name
end

Instance Method Details

#LogicalVolume(&block) ⇒ Object

Adds a Logical volume on this disk by doing an instance-eval



26
27
28
29
30
31
32
33
 
# File 'lib/PackerFiles/Core/VolumeGroup.rb', line 26

def LogicalVolume(&block)
   if block_given?
     lv = LogicalVolume.new
     lv.instance_eval &block
     lv.name = 'lv' + @lvs.size.to_s if (lv.name.nil?)
     @lvs.push(lv)
   end
end

#normalize ⇒ Object

Normalize the various values into something useful



36
37
38
39
40
41
42
43
44
 
# File 'lib/PackerFiles/Core/VolumeGroup.rb', line 36

def normalize
   raise 'name is nil'         if @name.nil?
   raise 'Disk names is empty' if @disk_names.empty?
   raise 'LVs is empty'        if @lvs.empty?
   @lvs.each {|lv| 
      lv.vg_name= @name
      lv.normalize
   }
end