Just to clarify and provide better assistance on this issue, could you confirm if you’re leveraging Azure App Service
WebApp for containers or running
AKS? How exactly are you attempting to perform the upgrade and kindly provide more details on the workspace resource ID you’re referring to and share any Azure documentation that you may be referring to for the upgrade process?
Take a look at the document
Tutorial: Upgrade Kubernetes in Azure Kubernetes Service (AKS) for upgrading an AKS cluster using the Azure CLI.
Additionally, Azure offers several ways to host websites/apps: Azure App Service WebApps (PAAS
solution), Virtual Machines (IAAS), Service Fabric, and Cloud Services (PAAS).
Refer the documentation
Azure App Service, Virtual Machines, Service Fabric, and Cloud Services comparison
for more details on this topic.