Module: Cloudkeeper::Utils::Appliance

Included in:
Managers::ApplianceManager
Defined in:
lib/cloudkeeper/utils/appliance.rb

Instance Method Summary collapse

Instance Method Details

#clean_image_file(filename) ⇒ Object 



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# File 'lib/cloudkeeper/utils/appliance.rb', line 17

def clean_image_file(filename)
  File.delete(filename) if File.exist?(filename)
end

#clean_image_files(appliance) ⇒ Object 



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# File 'lib/cloudkeeper/utils/appliance.rb', line 8

def clean_image_files(appliance)
  return unless appliance && appliance.image

  logger.debug "Cleaning downloaded image files for appliance #{appliance.identifier.inspect}"
  appliance.image.image_files.each { |image_file| clean_image_file image_file.file }
rescue ::IOError => ex
  logger.warn "Appliance cleanup error: #{ex.message}"
end

#convert_image!(appliance, image_file) ⇒ Object 



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# File 'lib/cloudkeeper/utils/appliance.rb', line 37

def convert_image!(appliance, image_file)
  format = acceptable_formats.find { |acceptable_format| image_file.respond_to? "to_#{acceptable_format}".to_sym }
  unless format
    raise Cloudkeeper::Errors::Image::Format::NoRequiredFormatAvailableError,
          "image #{image_file.inspect} cannot be converted to any acceptable format"
  end

  appliance.image.add_image_file image_file.send("to_#{format}".to_sym)
rescue Cloudkeeper::Errors::Image::Format::NoRequiredFormatAvailableError, Cloudkeeper::Errors::CommandExecutionError,
       Cloudkeeper::Errors::ArgumentError, ::IOError, ::SystemCallError => ex
  raise Cloudkeeper::Errors::Image::ConversionError, "Image #{appliance.image.uri.inspect} conversion error: #{ex.message}"
end

#log_expired(expirable, message) ⇒ Object 



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# File 'lib/cloudkeeper/utils/appliance.rb', line 4

def log_expired(expirable, message)
  logger.info "#{message} #{expirable.identifier.inspect}"
end

#prepare_image!(appliance) ⇒ Object 



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# File 'lib/cloudkeeper/utils/appliance.rb', line 29

def prepare_image!(appliance)
  image_file = Cloudkeeper::Managers::ImageManager.secure_download_image(appliance.image.uri, appliance.image.checksum)
  appliance.image.add_image_file image_file
  return if acceptable_formats.include? image_file.format

  convert_image! appliance, image_file
end

#update_image?(image_list_appliance, backend_appliance) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cloudkeeper/utils/appliance.rb', line 21

def update_image?(image_list_appliance, backend_appliance)
  image_list_appliance.image.digest != backend_appliance.image.digest
end

#update_metadata?(image_list_appliance, backend_appliance) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cloudkeeper/utils/appliance.rb', line 25

def update_metadata?(image_list_appliance, backend_appliance)
  image_list_appliance.digest != backend_appliance.digest
end