private WebAppHostNameBinding CreateHostnameBinding(string resourceNamePrefix, ResourceGroup resourceGroup,WebApp webApp, string hostName, RecordSet txtRecord)
    {
        var hostnameBindingArgs = new WebAppHostNameBindingArgs
        {
            Name = webApp.Name,
            ResourceGroupName = resourceGroup.Name,
            SslState = SslState.Disabled,
            CustomHostNameDnsRecordType = CustomHostNameDnsRecordType.CName,
            HostName = hostName,
            HostNameType = HostNameType.Verified,
            AzureResourceType = AzureResourceType.Website,
        };

        var dependsArgs = new CustomResourceOptions
        {
            DependsOn = new InputList<Pulumi.Resource> { txtRecord }
        };

        return new WebAppHostNameBinding($"{resourceNamePrefix}hostnameBinding", hostnameBindingArgs, dependsArgs);         
  }

private Pulumi.AzureNative.Web.Certificate CreateCertificate(string resourceNamePrefix, ResourceGroup resourceGroup, AppServicePlan appServicePlan, string hostname, WebAppHostNameBinding hostNameBinding )
    {
        var certificateArgs = new Pulumi.AzureNative.Web.CertificateArgs
        {
            Name = $"{resourceNamePrefix}managedCertificate",
            CanonicalName = hostname,
            ResourceGroupName = resourceGroup.Name,
            Location = resourceGroup.Location,
            ServerFarmId = appServicePlan.Id,
        };

        var dependsArgs = new CustomResourceOptions
        {
            DependsOn = new InputList<Pulumi.Resource> { hostNameBinding }
        };

        var managedCertificate = new Pulumi.AzureNative.Web.Certificate($"{resourceNamePrefix}managedCertificate",certificateArgs, dependsArgs);

        return managedCertificate;
    }

private void CreateCustomDomain(string resourceNamePrefix, ResourceGroup resourceGroup, AppServicePlan appServicePlan, WebApp webApp, string hostName, Certificate certificate)
    {
        var customDomainArgs = new Pulumi.AzureNative.AppPlatform.CustomDomainArgs
        {
            AppName = webApp.Name,
            ServiceName = appServicePlan.Name,
            ResourceGroupName = resourceGroup.Name,
            DomainName = hostName,
            Properties = new Pulumi.AzureNative.AppPlatform.Inputs.CustomDomainPropertiesArgs
            {
                CertName = certificate.Name,
                Thumbprint = certificate.Thumbprint
            }
        };

        var dependsArgs = new CustomResourceOptions
        {
            DependsOn = new InputList<Pulumi.Resource> { appServicePlan,webApp,resourceGroup }
        };

        var customDomain = new Pulumi.AzureNative.AppPlatform.CustomDomain($"{resourceNamePrefix}CustomDomain", customDomainArgs, dependsArgs);
    }