A ferry webhook Function is idle most nights and can tolerate cold…

Question

A ferry webhook Function is idle most nights and can tolerate cold starts, while a clerk-office Function must join a VNet and stay pre-warmed. How should the developer match Azure Functions hosting plans?

Accepted Answer

Use Consumption (or Flex Consumption) for the idle webhook and Premium (or Dedicated) for the VNet pre-warmed function. — Idle ferry webhooks love Consumption—pay when the boat calls, shrug at cold starts. Clerk-office work that needs VNet and warm workers steps up to Premium or Dedicated. Flip those and either the wallet or the network story breaks.

Answer

Run both on Consumption only, because VNet integration is free on every Consumption app.

Answer

Host both on AKS so Functions always share a Kubernetes node pool.

Answer

Use Dedicated App Service plan for the idle webhook and Consumption for the VNet clerk function.

A ferry webhook Function is idle most nights and can tolerate cold starts, while a clerk-office Function must join a VNet and stay pre-warmed. How should the developer match Azure Functions hosting plans?

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Full Explanation