Are my Function Apps dependent on Storage Accounts? I want to move my Function Apps to a new Resource Group

Question

Goal: Move all the necessary, and only the necessary, function apps and their dependencies from one resource group to another. This resource group they are currently in contains an App Configuration, 2 App Services (Function Apps), their Application Insights, a Storage account, and an App Service Plan.

The resource group I want to move them into already has things like Storage accounts, other Function apps, Logic apps, etc.

I have tried consulting the docs, maybe I am consulting the wrong ones. I am still puzzled about the dependencies Function Apps may have, and why this resource group needed to spin up a Storage account and what azure-webjobs-host and what the files populating within it mean or do.

Q1: How can I move them to the new resource group? I am thinking of using their ARM templates, but am vague on details.

Q2: Do I need to bring their Storage account with them?

Q3: Could I instead integrate them with the Storage account in their new resource group, after I moved them? How?

Q4: Can I simply delete Function Apps' Application Insights if I have no further use for them?

Q5: Any good resources or knowledge you want to share about Logic Apps / Function Apps being dependent on other resource types?

Thank you.

Answer 1

Are my Function Apps dependent on Storage Accounts?

Yes, function app on azure needs you to specified a storage account. This is because triggers other than httptrigger needs storage emulator.(This is built-in feature.)

How can I move them to the new resource group?

If you dont have too many function apps to move, just click 'Move' -> 'Move to another resource group' in the overview of your resource group and then select the function app you want to move.

Do I need to bring their Storage account with them?

No. No matter built-in feature or your function app need to deal with some storage accounts, it just needs you to offer connection string to link to.

Could I instead integrate them with the Storage account in their new resource group, after I moved them? How?

Yes.(If you are talking about built-in feature.) But you need to change this value:

And the value is getting from this place:

Can I simply delete Function Apps' Application Insights if I have no further use for them?

Yes, you can. It is just a way to monitor your function app. You can delete or re-create it whenever you want.

Any good resources or knowledge you want to share about Logic Apps / Function Apps being dependent on other resource types?

One thing I want to remind. Please keep your resources in the same region if you dont have some special requirement. This is not only because of some built-in restrictions, but it can also help you save costs. (For resources in Azure, data transmission between resources located in different regions requires additional bandwidth fees.)