Describe the feature

Hello,

In the UI their is an option to specify a custom SSL cert that is provisioned via ACM.

Using the aws-amplify-alpha construct it would be handy if i could specify a SSL cert I would like to use.

Use Case

I know Specifically in the case when i want to provision my own cert for a custom domain name in cognito and use the same cert for my frontend.

Proposed Solution

1. Provision the ACM managed cert in a separate stack

      new cdk.aws_certificatemanager.Certificate(this, 'Certificate', {
        domainName: props!.envVars.FQDN,
        validation: cdk.aws_certificatemanager.CertificateValidation.fromDns(importedHostedZone),
        subjectAlternativeNames:[
            `*.${props!.envVars.FQDN}`,
            `*.api.${props!.envVars.FQDN}`,
            `*.auth.${props!.envVars.FQDN}`,
        ]
      });
    }

2. In the stack where we define the FE app

new amplifyAlpha.App(this, 'mySubAmpHosting', {
...
acmCert:{
 fromCertificateArn:`xxx`
}
})

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.143.0 (build 9f2bdf7)

Environment details (OS name and version, etc.)

macOS Ventura - 13.6.3