Describe the solution you'd like
Migrate all parameters used for deploying hub networking to JSON parameters files. This provides:

• Path for deploying hub networking without Azure DevOps such as using Azure CLI/PowerShell, etc.
• Separates Azure DevOps pipeline variables from ARM deployment parameters.
• Simplifies support for multiple Hub Networks in an Azure tenant

The change will impact:

• Hub Networking with Azure Firewall
• Hub Networking with NVA