sls-latency-routing-cloudformation.yml

---
Resources:
  CustomDomain:
    Type: AWS::ApiGateway::DomainName
    Properties:
      RegionalCertificateArn: arn:aws:acm:${opt:region}:${env:ACCOUNT_ID}:certificate/${env:DOMAIN_CERT}
      DomainName: ${env:ROUTE53_NAME}
      EndpointConfiguration:
        Types:
          - REGIONAL
  ApiGatewayDeployment:
    Type: "AWS::ApiGateway::Deployment"
    DependsOn:
      - RegionCheckerLambdaFunction
      - HealthLambdaFunction
      - RegionCheckerLambdaPermissionApiGateway
      - HealthLambdaPermissionApiGateway
      - CustomDomain
    Properties:
      Description: "${opt:stage} environment"
      RestApiId:
        Ref: ApiGatewayRestApi
      StageName: "${opt:stage}"
  BasePathMappingV1:
    Type: 'AWS::ApiGateway::BasePathMapping'
    DependsOn: ApiGatewayDeployment
    Properties:
      BasePath: v1
      DomainName:
        Ref: CustomDomain
      RestApiId:
        Ref: ApiGatewayRestApi
      Stage: ${opt:stage}
  Route53HealthCheck:
    Type: "AWS::Route53::HealthCheck"
    Properties:
      HealthCheckConfig:
        Port: "443"
        Type: "HTTPS_STR_MATCH"
        SearchString: "OK"
        ResourcePath: "/${opt:stage}/health"
        FullyQualifiedDomainName:
          Fn::Join:
            - ""
            - - Ref: ApiGatewayRestApi
              - ".execute-api."
              - ${opt:region}
              - ".amazonaws.com"
        RequestInterval: "30"
        FailureThreshold: "2"
      HealthCheckTags:
        - Key: Name
          Value: ${opt:stage}-${self:custom.serviceName}
  Route53Record:
    Type: AWS::Route53::RecordSet
    Properties:
      Region: ${opt:region}
      HealthCheckId:
        Ref: Route53HealthCheck
      SetIdentifier: "latency-${opt:region}"
      HostedZoneId: ${env:ROUTE53_HOSTED_ZONE_ID}
      Name: ${env:ROUTE53_NAME}
      Type: CNAME
      TTL: 60
      ResourceRecords:
        - Fn::GetAtt: [ CustomDomain, RegionalDomainName ]