domain-template.yml

AWSTemplateFormatVersion: '2010-09-09'
Description: |
  Deploys a custom domain for a API

Parameters:
  ServiceName:
    Description: The name of the service that you are deploying
    Type: String
    Default: whos-that-pokemon
  Stage:
    Description: The Stage/Environment you are building in.
    Type: String
    Default: prod
    AllowedValues:
      - local-dev
      - dev
      - test
      - prod
  ApiDomain:
    Description: The domain
    Type: String
    Default: whosthatpokemon.xyz
  ApiDomainCertificate:
    Description: The certificate arn for the domain that are you using
    Type: String
    Default: arn:aws:acm:us-east-1:934679804324:certificate/e9d4580c-1ff4-4836-9a7e-9a9e532be2e6

Resources:
  ApiGatewayCustomDomainName:
    Type: AWS::ApiGateway::DomainName
    Properties:
      DomainName:
        Fn::Sub: api.${ApiDomain}
      EndpointConfiguration:
        Types:
          - REGIONAL
      RegionalCertificateArn:
        Ref: ApiDomainCertificate
  ApiGatewayCustomDomainMapping:
    Type: AWS::ApiGateway::BasePathMapping
    DependsOn:
      - ApiGatewayCustomDomainName
    Properties:
      BasePath: "v1"
      DomainName:
        Fn::Sub: api.${ApiDomain}
      RestApiId:
        Fn::ImportValue:
          Fn::Sub: ${Stage}-${ServiceName}-api-id
      Stage:
        Fn::Sub: ${Stage}
  CustomDomainRecord:
    Type: AWS::Route53::RecordSet
    Properties:
      Type: CNAME
      HostedZoneName:
        Fn::Sub: ${ApiDomain}.
      Name:
        Fn::Sub:
          api.${ApiDomain}
      ResourceRecords:
        - Fn::Sub: ${ApiGatewayCustomDomainName.RegionalDomainName}
      TTL: 300