我正在编写AWS代码表。我必须打印子网的Cidrblock。但这不起作用。请帮忙
"Resources": {
"Subnet": {
"Type": "AWS::EC2::Subnet",
"Properties": {
"VpcId": {
"Ref": "VPC"
},
"CidrBlock": "10.0.0.0/16",
}
},
Outputs : {
"SubnetCIDR": {
"Value": {
"Fn::GetAtt": [
"Subnet",
"CidrBlock"
]
},
"Description": "The CIDR"
},
}
这不起作用。上传模板时会显示以下错误消息:
模板验证错误:模板错误:资源子网不支持Fn :: GetAtt中的属性类型CidrBlock
不支持。
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-subnet.html
如果查看doc,则唯一受支持的属性是AvailabilityZone
由于您似乎对CIDR块进行了硬编码,因此可以将其设置为参数,然后仅在两个位置引用参数。
"Parameters" : {
"CidrBlock" : {
"Type" : "String",
"Default" : "10.0.0.0/16"
}
},
"Resources" : {
"Subnet" : {
"Type" : "AWS::EC2::Subnet",
"Properties" : {
"VpcId" : {
"Ref" : "VPC"
},
"CidrBlock" : { "Ref" : "CidrBlock" }
}
}
},
"Outputs" : {
"SubnetCIDR" : {
"Value" : { "Ref" : "CidrBlock" },
"Description": "The CIDR"
}
}