Terraform "value of ' 计数'无法计算 : why?

Question

我的模板中有以下资源规范:

resource "azurerm_sql_firewall_rule" "allow_app_server" {
  count = "${length(split(",", azurerm_app_service.backend.outbound_ip_addresses))}"

  depends_on = ["azurerm_app_service.backend"]

  name                = "${format("Allow App Service Plan %d", count.index)}"
  start_ip_address    = "${element(split(",", azurerm_app_service.backend.possible_outbound_ip_addresses), count.index)}"
  end_ip_address      = "${element(split(",", azurerm_app_service.backend.possible_outbound_ip_addresses), count.index)}"
  resource_group_name = "${var.environment_resource_group_name}"
  server_name         = "${var.db_server_name}"
}

resource "azurerm_app_service" "backend" {
   # properties ommitted for brevity
}

现在当我运行时 terraform plan ，它与消息错误

azurerm_sql_firewall_rule.allow_app_server: value of 'count' cannot be computed

为什么？我能做些什么来解决这个问题(不需要我部分部署模板)？

Answer 1

你有双引号问题，试试这个:

count = "${length(split(',', azurerm_app_service.backend.outbound_ip_addresses))}"