在云端模板中保存可重用的块
我有一个主机文件,我想推入所有的AWS :: EC2 ::实例资源使用string:(使用YAML,而不是JSON) Resources: InstanceName: Metadata: AWS::CloudFormation::Init:: config: files: /etc/hosts: content: !Ref 'HostFile' mode: '000644' owner: 'root' group: 'root' 我需要一个地方来定义主机文件使用FN :: Join和findinmap,la: !Fn::Join ['', [ "127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4\n", "::1 localhost localhost.localdomain localhost6 localhost6.localdomain6\n", !FindInMap [AddressMaps, InternalAddressMap, NFSIp], ' ', "cfnfs cfnfs.happysoftware.com\n", !FindInMap [AddressMaps, InternalAddressMap, RedisIp], ' ', "cfredis cfredis.happysoftware.com\n", !FindInMap [AddressMaps, InternalAddressMap, […]