funcApp.tf

resource "azurerm_function_app" "funcApp" {
    name                       = "userapi-${var.app_name}fa-${var.env_name}"
    location                   = "${data.azurerm_resource_group.rg.location}"
    resource_group_name        = "${data.azurerm_resource_group.rg.name}"
    app_service_plan_id        = "${azurerm_app_service_plan.plan.id}"
    storage_connection_string  = "${azurerm_storage_account.storage.primary_connection_string}"
    version                    = "~2"

    app_settings = {
        FUNCTION_APP_EDIT_MODE                    = "readOnly"
        https_only                                = true
        DOCKER_REGISTRY_SERVER_URL                = "${data.azurerm_container_registry.registry.login_server}"
        DOCKER_REGISTRY_SERVER_USERNAME           = "${data.azurerm_container_registry.registry.admin_username}"
        DOCKER_REGISTRY_SERVER_PASSWORD           = "${data.azurerm_container_registry.registry.admin_password}"
        WEBSITES_ENABLE_APP_SERVICE_STORAGE       = false
    }

    site_config {
      always_on         = true
      linux_fx_version  = "DOCKER|${data.azurerm_container_registry.registry.login_server}/${var.image_name}:${var.tag}"
    }
}