Managing the connectivity between the function app and the storage account is crucial as the Azure Function runtime is stored in the Azure storage account. In case of a disconnection, you might run into common errors such as "Azure Functions runtime is unreachable". Fortunately, Microsoft has a helpful guide to address this issue, which provides self-help troubleshooting steps for recovering your storage account in case of such errors. You can check it out here: https://learn.microsoft.com/en-us/azure/azure-functions/functions-recover-storage-account.
Previously, the only way to grant the permission for an Azure Function to access its runtime in a storage account was via the connection string in "azurewebjobsstorage" configuration. However, a new and more secure approach exists for granting a function app access to the storage account without compromising sensitive information. This method involves leveraging a "managed identity" to replace the connection string used in "azurewebjobsstorage". By adopting this approach, you can ensure that secrets remain private while still granting necessary permissions for the function app to operate seamlessly.