Class Rudy::Disk

  1. lib/rudy/metadata/disk.rb
Parent: Storable

Included modules

  1. Rudy::Metadata
  2. Gibbler::Complex

Public class methods

new (position=nil, path=nil, opts={})

If one argument is supplied:

  • path is a an absolute filesystem path
  • opts is a hash of disk options.

If two arguments are supplied:

  • position
  • path is a an absolute filesystem path
  • opts is a hash of disk options.

Valid options are:

  • :path is a an absolute filesystem path (overridden by path arg)
  • :position (overridden by position arg)
  • :size
  • :device
[show source] 
    # File lib/rudy/metadata/disk.rb, line 44
44:     def initialize(position=nil, path=nil, opts={})
45:       # Swap arg values if only one is supplied. 
46:       path, position = position, nil if !position.nil? && path.nil?
47:       position ||= '01'
48:       
49:       opts = {
50:         :size => 1,
51:         :device => current_machine_os.to_s == 'windows' ? DEFAULT_WINDOWS_DEVICE : DEFAULT_LINUX_DEVICE
52:       }.merge opts
53:       
54:       super Rudy::Disks::RTYPE, opts  # Rudy::Metadata#initialize
55:       
56:       @position, @path = position, path
57:       
58:       # Defaults:
59:       #datetime = Backup.format_timestamp(now).split(Rudy::DELIM)
60:       @created = Time.now.utc
61:       @mounted = false
62:       postprocess
63: 
64:     end

Public instance methods

archive ()
[show source] 
     # File lib/rudy/metadata/disk.rb, line 97
 97:     def archive
 98:       raise Rudy::AWS::EC2::VolumeNotAvailable, @volid unless volume_attached?
 99:       back = Rudy::Backup.new @position, @path, self.descriptors
100:       back.create
101:       back.size, back.fstype = @size, @fstype
102:       back.save :replace
103:       back
104:     end
backups ()
[show source] 
     # File lib/rudy/metadata/disk.rb, line 106
106:     def backups
107:       Rudy::Backups.list self.descriptors
108:     end
create (size=nil, zone=nil, snapshot=nil)
[show source] 
    # File lib/rudy/metadata/disk.rb, line 88
88:     def create(size=nil, zone=nil, snapshot=nil)
89:       raise DuplicateRecord, self.name if exists? && !@@global.force
90:       vol = Rudy::AWS::EC2::Volumes.create(size || @size, zone || @zone, snapshot) 
91:       #vol = Rudy::AWS::EC2::Volumes.list(:available).first   # debugging
92:       @volid, @raw = vol.awsid, true
93:       self.save :replace
94:       self
95:     end
descriptors ()
[show source] 
     # File lib/rudy/metadata/disk.rb, line 125
125:     def descriptors
126:       super :position, :path
127:     end
destroy (force=false)
[show source] 
     # File lib/rudy/metadata/disk.rb, line 111
111:     def destroy(force=false)
112:       if @volid && !volume_deleting?
113:         if !force
114:           raise Rudy::AWS::EC2::VolumeNotAvailable, @volid if volume_attached?
115:         else
116:           volume_detach if volume_exists? && volume_attached?
117:           sleep 0.1
118:         end
119:         raise Rudy::AWS::EC2::VolumeNotAvailable, @volid if volume_in_use?
120:         Rudy::AWS::EC2::Volumes.destroy(@volid) if volume_exists? && volume_available?
121:       end
122:       super() # quotes, otherwise Ruby will send this method's args
123:     end
mounted? ()
[show source] 
     # File lib/rudy/metadata/disk.rb, line 150
150:     def mounted?
151:       @mounted == true
152:     end
name ()
[show source] 
    # File lib/rudy/metadata/disk.rb, line 78
78:     def name
79:       sep = File::SEPARATOR
80:       dirs = @path.split sep if @path && !@path.empty?
81:       unless @path == File::SEPARATOR
82:         dirs.shift while dirs && (dirs[0].nil? || dirs[0].empty?)
83:       end
84:       # Calls Rudy::Metadata#name with disk specific components
85:       super *dirs  
86:     end
postprocess ()

sdb values are stored as strings. Some quick conversion.

[show source] 
    # File lib/rudy/metadata/disk.rb, line 67
67:     def postprocess
68:       @position = @position.to_s.rjust(2, '0') if @position.to_s.size == 1
69:       @size &&= @size.to_i
70:       @raw = true if @raw == "true" unless @raw.is_a?(TrueClass)
71:       @mounted = (@mounted == "true") unless @mounted.is_a?(TrueClass)
72:     end
raw? ()
[show source] 
     # File lib/rudy/metadata/disk.rb, line 146
146:     def raw?
147:       @raw == true
148:     end
to_s (*args)
[show source] 
    # File lib/rudy/metadata/disk.rb, line 74
74:     def to_s(*args)
75:       [self.name.bright, self.volid, self.size, self.fstype].join '; '
76:     end
valid? ()
[show source] 
     # File lib/rudy/metadata/disk.rb, line 131
131:     def valid?
132:       !@path.nil? && !@path.empty?
133:     end
volume_attach (instid)
[show source] 
     # File lib/rudy/metadata/disk.rb, line 136
136:     def volume_attach(instid)
137:       raise Rudy::Error, "No volume id" unless volume_exists?
138:       vol = Rudy::AWS::EC2::Volumes.attach(@volid, instid, @device)
139:     end
volume_detach ()
[show source] 
     # File lib/rudy/metadata/disk.rb, line 141
141:     def volume_detach
142:       raise Rudy::Error, "No volume id" unless volume_exists?
143:       vol = Rudy::AWS::EC2::Volumes.detach(@volid)
144:     end