下面有一段代码,它基于名称列表和地址前缀列表创建一堆子网。
resource "azurerm_subnet" "subnet" {
count = "${length(var.subnet_names)}"
name = "${element(var.subnet_names, count.index)}"
resource_group_name = "${var.vnet_rg_name}"
virtual_network_name = "${data.azurerm_virtual_network.vnet.name}"
address_prefix = "${element(var.subnet_prefixes, count.index)}"
service_endpoints = ["Microsoft.Sql","Microsoft.Storage","Microsoft.AzureCosmosDB"]
network_security_group_id = "${data.azurerm_network_security_group.required_nsg.id}"
route_table_id = "${element(azurerm_route_table.routetable.*.id, count.index)}"
depends_on = ["azurerm_route_table.routetable"]
}
然后我尝试使用模块创建一些路由,但是当我尝试使用来自 azurerm_subnet.subnet 资源的特定实例的属性为变量传递值时,会引发错误:< / p>
“ module.insidemzroutes.var.subnet_name:找不到变量'azurerm_subnet.subnet.5.name'的资源'azurerm_subnet.subnet'”
module "insidedmzroutes" {
source = "./modules/dmzroutes"
subnet_name = "${azurerm_subnet.subnet.5.name}"
vnet_rg = "${data.azurerm_resource_group.vnet_rg.name}"
route_table_name = "${azurerm_route_table.routetable.5.name}"
next_hop_ip = "${cidrhost(azurerm_subnet.subnet.5.address_prefix, 4)}"
subnet_names = ["${var.subnet_names}"]
subnet_prefixes = ["${var.subnet_prefixes}"]
}
这行不通吗,或者我的引用结构不正确?
答案 0 :(得分:1)
请查看Terraform interpolation syntax documentation,查找interpolation syntax
。
以下将起作用(如Adil B所示):
subnet_name = "${azurerm_subnet.subnet.*.name[5]}"
像splat语法一样,您可以选择使用count变量创建的所有元素,然后将返回一个列表,您可以从[5]中选择正确的元素。
但是,为什么还要传递整个子网列表呢?这些是哪个子网?从代码中还不清楚是这些子网是您之前创建的5个子网还是其他子网。您要为每个子网创建一个insidedmzroutes
吗?如果是这样,我将摆脱subnet_name
var,而在模块内部的资源中实现如下所示:
count = "${length(var.subnet_names)}"
subnet_name = "${element(var.subnet_names, count.index)}"