ConfigureCustomDomain Only Supports One Domain

[AndrewBabbitt97]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

ConfigureCustomDomain when called multiple times with different domains & parameters will override the last set domain.

Expected Behavior

When called multiple times, I would expect ConfigureCustomDomain to append the domain to the domain list instead of replace the list entirely.

Steps To Reproduce

Call ConfigureCustomDomain twice on the same container app, the second call will overwrite the first:

var builder = DistributedApplication.CreateBuilder(args);

var customDomain1 = builder.AddParameter("CustomDomain1");
var certificateName1 = builder.AddParameter("CertificateName1");
var customDomain2 = builder.AddParameter("CustomDomain2");
var certificateName2 = builder.AddParameter("CertificateName2");

builder.AddProject<Sample_Web>("web")
    .WithExternalHttpEndpoints()
    .PublishAsAzureContainerApp((module, app) =>
    {
        app.ConfigureCustomDomain(customDomain1, certificateName1);

        // This doesn't work
        app.ConfigureCustomDomain(customDomain2, certificateName2);
    });

builder.Build().Run();

Exceptions (if any)

N/A

.NET Version info

.NET SDK: 9.0.102
.NET Runtime: 9.0.1
.NET Aspire: 9.0.0

Anything else?

N/A