How to specify 4 connection strings in azurerm_app_service resource block - azure

Question

I have a module defined in our enterprise for creating App Service Plan along with Azure Web Apps. But now i would like to use the "azurerm_app_service" resource block as mentioned in the link : https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/app_service
In our module the connection strings are defined under the argument :
app_settings = {
AzureAd__ClientSecret = <Connection String of the App SP stored in Azure KV>
DbConnection__ConnectionString = <Azure SQL DB Connection String stored in Azure KV>
CosmosDb__Account = <Connection String of the Cosmos DB Account stored in Azure KV>
CosmosDb__Key = <Connection String of the Cosmos DB Account Key stored in Azure KV>
}
Now in the resource block for "azurerm_app_service" as per the URL above there is an argument called connection_string as shown in the URL :
connection_string {
name = "Database"
type = "SQLServer"
value = "Server=some-server.mydomain.com;Integrated Security=SSPI"
}
So i would like to know as to how i can define my 4 connection strings in the resource block against the "connection_string" argument and what are the types i should choose for each of my connection strings?
Will it be ok if i continue to define my connection strings as they are in the module now under "app_settings", or that will be a problem if i do that in the new resource block structure?
Looking for some help on this

Answer 1

For your requirement, you can use the dynamic block to define the multiple connection_string in the azurerm_app_service resource block. The example code here for you:
resource "azurerm_app_service" "webapp" {
...
dynamic "connection_string" {
for_each = var.connection_strings
content {
name = each.value.name
type = each.value.type
value = each.value.value
}
}
...
}
So you see, you'd better use a variable to configure all the necessary things of the connection_strings, and then use it in the dynamic block.