def create options = {}
if profile = options.delete(:iam_instance_profile)
profile = case profile
when /^arn:aws:iam::/ then { :arn => profile }
when String then { :name => profile }
when Hash then profile
else
msg = "expected a name or ARN string for :iam_instance_profile"
end
options[:iam_instance_profile] = profile
end
if image = options.delete(:image)
options[:image_id] = image.id
end
if kernel = options.delete(:kernel)
options[:kernel_id] = kernel.id
end
if ramdisk = options.delete(:ramdisk)
options[:ramdisk_id] = ramdisk.id
end
if key_pair = options.delete(:key_pair)
options[:key_name] = key_pair.name
end
options = count_options(options).merge(options)
options.delete(:count)
options[:user_data] = Base64.encode64(options[:user_data]).strip if
options[:user_data]
if options[:block_device_mappings].is_a?(Hash)
options[:block_device_mappings] =
translate_block_device_mappings(options[:block_device_mappings])
end
options[:monitoring] = { :enabled => true } if
options[:monitoring_enabled]
options.delete(:monitoring_enabled)
placement = {}
if options[:availability_zone]
placement[:availability_zone] = options[:availability_zone].to_s
options.delete(:availability_zone)
end
if options[:dedicated_tenancy]
placement[:tenancy] = 'dedicated'
options.delete(:dedicated_tenancy)
end
options[:placement] = placement unless placement.empty?
if subnet_id = subnet_id_option(options)
options[:subnet_id] = subnet_id
end
security_group_opts(options)
options[:client_token] = UUIDTools::UUID.timestamp_create.to_s
resp = client.run_instances(options)
if options[:min_count] == options[:max_count] and
options[:min_count] == 1
self[resp.instances_set.first.instance_id]
else
resp[:instances_set].map {|i| self[i[:instance_id]] }
end
end