Terraform Azure Function App Deployment - Representing settings

I am trying to deploy an Azure Function App via Terraform

I am getting the following errors when trying to represent the Function App settings:

Error: azurerm_function_app.func-app-1: : invalid or unknown key: always_on

Error: azurerm_function_app.func-app-1: : invalid or unknown key: use_32_bit_worker_process

Error: azurerm_function_app.func-app-1: : invalid or unknown key: websockets_enabled

Below is the code i am using:

 resource "azurerm_function_app" "func-app-1" { name = "${var.func_app_1}" location = "${data.azurerm_resource_group.core-rg.location}" resource_group_name = "${data.azurerm_resource_group.core-rg.name}" app_service_plan_id = "${data.azurerm_app_service_plan.app-service-plan-1.id}" storage_connection_string = "${data.azurerm_storage_account.storage-account-1.primary_connection_string}" version = "~1" https_only = "true" enabled = "true" always_on = "true" use_32_bit_worker_process = "false" websockets_enabled = "true" client_affinity_enabled = "false" app_settings { "FUNCTIONS_EXTENSION_VERSION" = "~1" "KeyVaultURI" = “” "WEBSITE_NODE_DEFAULT_VERSION" = "6.5.0" } }

Any help would be appreciated

Thank you

3 Answers

You need to define app settings in variables.tf

resource "azurerm_function_app" "func-app-1" { name = "${var.func_app_1}" location = "${data.azurerm_resource_group.core-rg.location}" resource_group_name = "${data.azurerm_resource_group.core-rg.name}" app_service_plan_id = "${data.azurerm_app_service_plan.app-service-plan-1.id}" storage_connection_string = "${data.azurerm_storage_account.storage-account-1.primary_connection_string}" version = "~1" https_only = "true" enabled = "true" always_on = "true" use_32_bit_worker_process = "false" websockets_enabled = "true" client_affinity_enabled = "false" app_settings = "${var.app_settings}"
}

In variables.tf

variable "app_settings" { description = "A key-value pair of App Settings" default = { "FUNCTIONS_EXTENSION_VERSION" = "~1", "KeyVaultURI" = “”, "WEBSITE_NODE_DEFAULT_VERSION" = "6.5.0" }
}

Please define the same under site_config. Please refer below code. You can add further

resource "azurerm_function_app" "prod" { name = "${var.function_app_name}" location = "${azurerm_resource_group.prod.location}" resource_group_name = "${azurerm_resource_group.prod.name}" app_service_plan_id = "${azurerm_app_service_plan.prod.id}" storage_connection_string = "${azurerm_storage_account.prod.primary_connection_string}" version = "~2" app_settings = { APPINSIGHTS_INSTRUMENTATIONKEY = "${azurerm_application_insights.prod.instrumentation_key}" FUNCTIONS_EXTENSION_VERSION = "~2" FUNCTIONS_WORKER_RUNTIME = "dotnet" WEBSITE_CONTENTAZUREFILECONNECTIONSTRING = "${azurerm_storage_account.prod.primary_connection_string}" WEBSITE_CONTENTSHARE = "${var.storage_account_name}" } site_config { always_on = "true" }
}

I believe you need to add those values that are erroring in a site_config block as per the docs here :