Upgrade Node Functions to 14 or greater

[BernieWhite]

Rule request

Suggested rule change

Add a new rule Azure.Function.NodeVersion to configure a minimum version of node.js with Azure Functions. Also host version ~4 is required.

Only applies to Azure Functions sites with:

• FUNCTIONS_WORKER_RUNTIME set to node

The selector Azure.AppService.IsFunctionApp can be used to only target function apps.

Rule recommendation will be similar to:

• https://azure.github.io/PSRule.Rules.Azure/en/rules/Azure.AppService.NETVersion/
• https://azure.github.io/PSRule.Rules.Azure/en/rules/Azure.AppService.PHPVersion/

Applies to the following

The rule applies to the following:

• Resource type: Microsoft.Web/sites and Microsoft.Web/sites/slots

Additional context

• [Upgrading your Azure Function Apps to run on PowerShell 7.2](https://learn.microsoft.com/azure/azure-functions/functions-reference-node#setting-the-node-version)