Adding Azure Cname using Bicep code: Getting error of "ParentResourceNotFound",

Question

// Reside in different RS
resource dnsZone 'Microsoft.Network/dnsZones@2018-05-01' existing = {
name: 'example.com'
}

// creating web resources into different one.
resource sites_TestSpa_name 'Microsoft.Web/sites@2020-12-01' = {
name: sites_TestSpa_name_var
location: resourceGroup().location
kind: 'app'
properties: {
serverFarmId: serverFarmID
siteConfig: {
http20Enabled: true
nodeVersion: '~14'
requestTracingEnabled: true
requestTracingExpirationTime: '12/31/9999 11:59:00 PM'
httpLoggingEnabled: true
detailedErrorLoggingEnabled: true
publishingUsername: '$TestSpa-${environment}'
appSettings: [
{
name: 'WEBSITE_HTTPLOGGING_RETENTION_DAYS'
value: '3'

    }
    {
      name: 'WEBSITE_NODE_DEFAULT_VERSION'
      value: '~14'

    }
    {
      name: 'WEBSITE_RUN_FROM_PACKAGE'
      value: '1'

    }
  ]
  scmType: 'VSTSRM'
  alwaysOn: false
  virtualApplications: [
    {
      virtualPath: '/'
      physicalPath: 'site\\wwwroot'
      preloadEnabled: false
    }
  ]
  cors: {
    allowedOrigins: [

    ]
    supportCredentials: true
  }
}
httpsOnly: true

}
}

resource sites_TestSpa_name_sites_TestSpa_name_azurewebsites_net 'Microsoft.Web/sites/hostNameBindings@2020-12-01' = {
parent: sites_TestSpa_name
name: '${toLower('${sites_TestSpa_name_var}.azurewebsites.net')}'
properties: {
siteName: sites_TestSpa_name_var
hostNameType: 'Verified'
}
}

resource sites_TestSpa_name_environment_testspa_biberk_com 'Microsoft.Web/sites/hostNameBindings@2020-12-01' = {
parent: sites_TestSpa_name
name: '${toLower('${environment}-testspa.example.com')}'
properties: {
siteName: sites_TestSpa_name_var
hostNameType: 'Verified'
sslState: 'SniEnabled'
thumbprint: certificateName_resource.properties.thumbprint
}
dependsOn: [
sites_TestSpa_name_sites_TestSpa_name_azurewebsites_net
]
}

// adding cname
resource dnsRecord 'Microsoft.Network/dnsZones/CNAME@2018-05-01' = {
parent: dnsZone
name: 'dev-testspa'
properties: {
TTL: 300
CNAMERecord: {
cname: 'TestSpa-dev.azurewebsites.net'
}
}
}

deployment error:

"status": "Failed",
"error": {
"code": "ParentResourceNotFound",
"message": "Can not perform requested operation on nested resource. Parent resource 'example.com' not found."
}

Answer 1

@kade , I would like to help you here with truly little expertise on Bicep framework. While delving into Bicep concepts I came across this sample Bicep module that aims towards creating a CNAME in DNS Zone. Please go through this module if you haven't visited yet and do let us know if you are still unable to fix it.