Recently I was trying to deploy a lambda function and a Cloudfront distribution together with a CloudFormation yaml template with SAM. However, I'm stuck with the DomainName in the CloudFormation since I do not have the id of the API gateway before I actually deploy it.
Thus, I tried to link the API Gateway with the CF Distribution with !Sub "${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/" as the DomainName, but I got the following error:
Resource handler returned message: "Invalid request provided: The parameter origin name must be a domain name.
My code is shown as follow:
AWSTemplateFormatVersion: 2010-09-09
Description: >-
cf-apigw-lambda-dynamodb
Transform:
- AWS::Serverless-2016-10-31
Resources:
getHeadersFunction:
Type: AWS::Serverless::Function
Properties:
Handler: src/handlers/get-items.getItemsHandler
Runtime: nodejs14.x
Architectures:
- x86_64
MemorySize: 128
Timeout: 100
Description: Get all items
Events:
Api:
Type: Api
Properties:
Path: /items
Method: GET
CloudfrontDistribution:
Type: AWS::CloudFront::Distribution
Properties:
DistributionConfig:
Origins:
- DomainName: !Sub "${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/"
Id: ApiOrigin
CustomOriginConfig:
HTTPPort: 80
HTTPSPort: 443
OriginProtocolPolicy: https-only
Enabled: true
DefaultCacheBehavior:
TargetOriginId: ApiOrigin
ViewerProtocolPolicy: redirect-to-https
CachePolicyId: c17edf1f-cb61-49d6-979d-39f05ba95f91
OriginRequestPolicyId: c57eds1f-c8d1-4544-b8ce-6f4307e30d2e
Outputs:
WebEndpoint:
Description: "API Gateway endpoint URL for Prod stage"
Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/"
You can't have /Prod/ in a DomainName
DomainName: !Sub "${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com"