Method: Configure#resolve_template_param

Defined in:

lib/maws/commands/configure.rb

#resolve_template_param(instance, template_name, param_name, param_config) ⇒ Object

# File 'lib/maws/commands/configure.rb', line 210

def resolve_template_param(instance, template_name, param_name, param_config)
  if param_config == 'self'
    return instance

  elsif param_config == 'config'
    return @config

  elsif param_config.is_a? String
    return param_config

  elsif param_config.select_one.is_a? String
    context = "#{instance.role_name}-#{template_name}-#{param_name}"
    @chunk_source.select(:chunk, param_config.select_one, instance.zone,
                            :chunk_size => 1, :chunk_key => context).first

  elsif param_config.select_many.is_a? String
    @chunk_source.select(:all, param_config.select_many, instance.zone)

  elsif param_config.select_one
    context = "#{instance.role_name}-#{template_name}-#{param_name}"
    from = param_config.select_one.from # nil means default
    @chunk_source.select(:chunk, param_config.select_one.role, instance.zone,
                                  :chunk_size => 1, :chunk_key => context, :from => from).first

  elsif param_config.select_many
    context = "#{instance.role_name}-#{template_name}-#{param_name}"
    from = param_config.select_many.from # nil means default
    @chunk_source.select(:chunk, param_config.select_many.role, instance.zone,
                                :chunk_size => param_config.select_many.chunk_size, :chunk_key => context, :from => from)

  else
    param_config
  end
end