Class: Comfy::Creator

Inherits:
Object
  • Object
show all
Defined in:
lib/comfy/creator.rb

Overview

Creates given virtual machine images.

Constant Summary collapse

TIMESTAMP_FORMAT = 
'%Y%m%d%H%M'
NEEDLE_REPLACEMENTS = 
{
  :$v => lambda { |instance| instance.send(:version_string) },
  :$t => lambda { |instance| Time.new.strftime(TIMESTAMP_FORMAT) },
  :$n => lambda { |instance| instance.data[:distro]['name'] },
  :$g => lambda { |instance| instance.data[:groups].join(',') }
}
REPLACEMENT_REGEX = 
/\$[a-zA-Z]/

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Creator

Creates a creator instance.

Parameters:

  • options (Hashie::Mash) —

    hash-like structure with options



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# File 'lib/comfy/creator.rb', line 25

def initialize(options)
  @data = options.clone
end

Instance Attribute Details

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/comfy/creator.rb', line 10

def data
  @data
end

Instance Method Details

#clean ⇒ Object

Cleans everything from temporary directory



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# File 'lib/comfy/creator.rb', line 55

def clean
  if data[:server_dir]
    logger.debug("Cleaning temporary directory #{data[:server_dir]}.")
    FileUtils.remove_dir(data[:server_dir])
  end
end

#create ⇒ Object

Method representing the whole creation process. Prepares enviroment, prepare files and starts packer job.



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# File 'lib/comfy/creator.rb', line 31

def create
  logger.info('Preparing for image creation...')

  data[:server_dir] = Dir.mktmpdir('comfy')
  logger.debug("Server root directory: #{data[:server_dir]}")

  prepare_data
  logger.debug("Prepared data: #{data}")

  templater = Comfy::Templater.new data
  templater.prepare_files

  packer_file = "#{data[:server_dir]}/#{data[:distribution]}.packer"
  run_packer(packer_file)

  # let's create cloud appliance descriptor files
  if data[:description]
    data[:formats].each do |format|
      File.write(File.join(data[:'output-dir'], "#{data[:identifier]}.json"), description(format))
    end
  end
end