How Can I Implement Per-App Scaling for High-Density Hosting in Azure App Service?

I’m working on hosting multiple applications using Azure App Service, and I want to optimize resource usage by enabling Per-App Scaling. My goal is to host a high-density number of apps on the same App Service Plan without performance degradation.

My Setup:

1. I’m using a PremiumV3 App Service Plan.
2. I have multiple apps running, each consuming different levels of resources.
3. Some apps require more scaling (CPU/memory), while others do not.
4. Currently, all apps scale uniformly, leading to inefficient resource usage.

What I’ve Tried:

1. Enabled auto-scaling based on CPU usage, but this approach scalesall apps simultaneously, regardless of their individual needs.
2. Reviewed Azure documentation for Per-App Scaling, but I’m not clear on how to implement it correctly.

Sample Example:

Here’s an example scenario:

1. App A consumes a significant amount of CPU and memory due to heavy computational tasks.
2. App B is a lightweight web app that handles low traffic.
3. I want to configure App A to scale up to more instances under load, while App B remains unaffected, ensuring efficient resource allocation.

What I Expect:

I would like to scale individual apps independently within the same App Service Plan, ensuring that high-resource-consuming apps don’t impact the performance of smaller apps. How can I configure Per-App Scaling in Azure to achieve this?

Any examples, configurations, or best practices would be greatly appreciated!