Create dependencies to for waiting some time for the container registry

infra/core/host/container-apps.bicep

@@ -13,6 +13,9 @@ param daprEnabled bool = false
 
 module containerAppsEnvironment 'container-apps-environment.bicep' = {
   name: '${name}-container-apps-environment'
+  // Container Envieronment does depend directly on the registry, but we want to wait for the registry to be ready 
+  // The time for creating the container environment is used to wait for the container registry to be ready (DNS propagation)
+  dependsOn: [containerRegistry]
   params: {
     name: containerAppsEnvironmentName
     location: location
@@ -34,6 +37,28 @@ module containerRegistry 'container-registry.bicep' = {
   }
 }
 
+// Wait for the registry to be ready before continuing
+// DNS propagation can take up to 60 sec
+// see: https://learn.microsoft.com/en-us/azure/dns/dns-faq#how-long-does-it-take-for-dns-changes-to-take-effect-
+resource waitForRegistry 'Microsoft.Resources/deploymentScripts@2023-08-01' = {
+  name: 'wait-for-registry-app-container-registry'
+  location: location
+  kind: 'AzureCLI'
+  dependsOn: [
+    containerAppsEnvironment
+  ]
+  properties: {
+    azCliVersion: '2.61.0'
+    retentionInterval: 'PT1H' // Retain the script resource for 1 hour after it ends running
+    timeout: 'PT5M' // Five minutes
+    cleanupPreference: 'OnSuccess'
+    scriptContent: '''
+      # setting up deployment script takes about 1 minute, which is the max time we need to wait for DNS propagation
+      echo "Waited at least 60 seconds for DNS propagation. If container registry is not found, an error will be returned."
+    '''
+  }
+}
+
 output defaultDomain string = containerAppsEnvironment.outputs.defaultDomain
 output environmentName string = containerAppsEnvironment.outputs.name
 output environmentId string = containerAppsEnvironment.outputs.id