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[英]Passing values from parent stack to nested stack for Cloudformation
[英]Passing parameters from parent stack to child stack in nested stack - Cloudformation
我正在尝试使用 root 将参数传递给面向互联网的 elb。 我创建了一个嵌套堆栈,其中 root.yml 充当根,vpc 和 elb 是子堆栈。 我正在尝试将参数从根传递到 elb.yml,但它给出了一个错误Parameter values specified for a template which does not require them
。 嵌套堆栈在 vpc 之前运行良好,但是当它到达 elb 时会出现错误
根.yml:
AWSTemplateFormatVersion: 2010-09-09
Parameters:
bucketname:
Type: String
Description: Path to the bucket
Default: webserver
bucketpath:
Type: String
Description: Path to the bucket
Default: /nested-stack
Resources:
Vpcstack:
Type: AWS::CloudFormation::Stack
Properties:
TemplateURL: !Sub "https://${bucketname}.s3.us-east-2.amazonaws.com${bucketpath}/vpc1.yml"
elb:
DependsOn: Vpcstack
Type: AWS::CloudFormation::Stack
Properties:
TemplateURL: !Sub "https://${bucketname}.s3.us-east-2.amazonaws.com${bucketpath}/internetfacing-elb.yml"
Parameters:
SubnetA: !GetAtt Vpcstack.Outputs.SubnetA
SubnetB: !GetAtt Vpcstack.Outputs.SubnetB
VpcID: !GetAtt Vpcstack.Outputs.VpcID
Vpc 堆栈:
---
AWSTemplateFormatVersion: 2010-09-09
Resources:
VPC:
Type: AWS::EC2::VPC
Properties:
CidrBlock: 11.0.0.0/16
EnableDnsSupport: true
EnableDnsHostnames: true
InstanceTenancy: default
InternetGateway:
Type: AWS::EC2::InternetGateway
VPCGatewayAttachment:
Type: AWS::EC2::VPCGatewayAttachment
Properties:
VpcId: !Ref VPC
InternetGatewayId: !Ref InternetGateway
SubnetA:
Type: AWS::EC2::Subnet
Properties:
AvailabilityZone: us-east-2a
VpcId: !Ref VPC
CidrBlock: 11.0.0.0/24
MapPublicIpOnLaunch: true
SubnetB:
Type: AWS::EC2::Subnet
Properties:
AvailabilityZone: us-east-2b
VpcId: !Ref VPC
CidrBlock: 11.0.1.0/24
MapPublicIpOnLaunch: true
SubnetC:
Type: AWS::EC2::Subnet
Properties:
AvailabilityZone: us-east-2a
VpcId: !Ref VPC
CidrBlock: 11.0.2.0/24
MapPublicIpOnLaunch: false
SubnetD:
Type: AWS::EC2::Subnet
Properties:
AvailabilityZone: us-east-2b
VpcId: !Ref VPC
CidrBlock: 11.0.3.0/24
MapPublicIpOnLaunch: false
RouteTable:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
RouteTable2:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
InternetRoute:
Type: AWS::EC2::Route
DependsOn: VPCGatewayAttachment
Properties:
DestinationCidrBlock: 0.0.0.0/0
GatewayId: !Ref InternetGateway
RouteTableId: !Ref RouteTable
SubnetARouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref RouteTable
SubnetId: !Ref SubnetA
SubnetBRouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref RouteTable
SubnetId: !Ref SubnetB
SubnetCRouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref RouteTable2
SubnetId: !Ref SubnetC
SubnetDRouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref RouteTable2
SubnetId: !Ref SubnetD
SecurityGroup:
Type: AWS::EC2::SecurityGroup
Properties:
GroupName: "Internet Group"
GroupDescription: "SSH traffic in, all traffic out."
VpcId: !Ref VPC
SecurityGroupIngress:
- IpProtocol: tcp
FromPort: "22"
ToPort: "22"
CidrIp: 0.0.0.0/0
SecurityGroupEgress:
- IpProtocol: -1
CidrIp: 0.0.0.0/0
NAT:
Type: AWS::EC2::NatGateway
Properties:
AllocationId:
Fn::GetAtt:
- EIP
- AllocationId
SubnetId:
Ref: SubnetA
Tags:
- Key: Name
Value: ng-nat
EIP:
DependsOn: VPCGatewayAttachment
Type: AWS::EC2::EIP
Properties:
Domain: VPC
Route:
Type: AWS::EC2::Route
Properties:
RouteTableId:
Ref: RouteTable2
DestinationCidrBlock: 0.0.0.0/0
NatGatewayId:
Ref: NAT
Outputs:
VpcID:
Description: VPC id
Value: !Ref VPC
Export:
Name: "VpcID"
SubnetA:
Description: public subnet
Value: !Ref SubnetA
Export:
Name: "SubnetA"
SubnetB:
Description: public subnet 2
Value: !Ref SubnetB
Export:
Name: "SubnetB"
SubnetC:
Description: priavte subnet
Value: !Ref SubnetC
Export:
Name: "SubnetC"
SubnetD:
Description: private subnet 2
Value: !Ref SubnetD
Export:
Name: "SubnetD"
面向互联网的 elb:
---
AWSTemplateFormatVersion: 2010-09-09
Resources:
elb:
Type: AWS::EC2::SecurityGroup
Properties:
GroupName: sg-elb
VpcId:
Fn::ImportValue: "VpcID"
SecurityGroupIngress:
- IpProtocol: tcp
FromPort: 22
ToPort: 22
CidrIp: 0.0.0.0/0
Description: For traffic from Internet
- IpProtocol: tcp
FromPort: 80
ToPort: 80
CidrIp: 0.0.0.0/0
Description: For traffic from Internet
GroupDescription: Security Group for demo server
MyLoadBalancer:
Type: AWS::ElasticLoadBalancing::LoadBalancer
Properties:
Listeners:
- LoadBalancerPort: "80"
InstancePort: "80"
Protocol: HTTP
SecurityGroups:
- !Ref elb
LoadBalancerName: elb
Subnets:
- Fn::ImportValue: "SubnetA"
- Fn::ImportValue: "SubnetB"
HealthCheck:
Target: HTTP:80/SamplePage.php
HealthyThreshold: "3"
UnhealthyThreshold: "5"
Interval: "30"
Timeout: "5"
Outputs:
ec2:
Description: ec2
Value: !Ref MyLoadBalancer
Export:
Name: "MyLoadBalancer"
lgsg:
Description: lg-sg
Value: !GetAtt elb.GroupId
Export:
Name: "lgsg"
问题来自您将 3 个参数传递给 elb 堆栈的事实:
SubnetA: !GetAtt Vpcstack.Outputs.SubnetA
SubnetB: !GetAtt Vpcstack.Outputs.SubnetB
VpcID: !GetAtt Vpcstack.Outputs.VpcID
但是,elb 模板不接受任何参数。
要纠正此问题,您应该将Parameters
部分添加到 elb 模板。 例如:
Parameters:
SubnetA:
Type: String
SubnetB:
Type: String
VpcID:
Type: String
此外,在 elb 模板中,您应该使用!Ref
而不是!ImportValue
来引用新参数。
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