main.tf

provider "azurerm" {
  version = "~> 1.35"
}

resource "azurerm_resource_group" "test" {
  name     = "resourceGroup1"
  location = "westeurope"
}


resource "azurerm_app_service_plan" "test" {
  name                = "sdafasgwg"
  location            = "${azurerm_resource_group.test.location}"
  resource_group_name = "${azurerm_resource_group.test.name}"

  sku {
    tier = "Basic"
    size = "B1"
  }
}

resource "azurerm_app_service" "test" {
  name                = "safsadfaf"
  location            = "${azurerm_resource_group.test.location}"
  resource_group_name = "${azurerm_resource_group.test.name}"
  app_service_plan_id = "${azurerm_app_service_plan.test.id}"

  app_settings = {
    "SOME_KEY" = "some-value"
  }
}