--- AWSTemplateFormatVersion: 2010-09-09 Description: AWS EKS Reference Wildcard and Application Certificates for CloudFront distribution Parameters: CustomDomainName: Type: String Resources: AppCert: Type: AWS::CertificateManager::Certificate Properties: DomainName: !Sub '*.${CustomDomainName}' SubjectAlternativeNames: - !Sub '${CustomDomainName}' DomainValidationOptions: - DomainName: !Ref CustomDomainName ValidationDomain: !Ref CustomDomainName ValidationMethod: DNS Outputs: CloudFrontAppCert: Value: !Ref AppCert