Terraform - 在 variables.tf 中为 type = map(object()) 添加验证

Terraform - Adding Validation for type = map(object()) in variables.tf

首先感谢这个 post ,它回答了我在获取默认值以使用类型 map(object()) 时遇到的困难的第一部分。我试图开始工作的最后一部分是如何验证输入值。

terraform {
  experiments = [module_variable_optional_attrs]
}

variable "dns_server" {
  description = "Add DNS Servers for domain resolution.  You can configure a maximum of two servers.  Only one can be preferred 'true'."
  type = map(object({
    preferred = optional(bool)
    server    = optional(string)
  }))
  default = {
    default = {
      preferred = false
      server    = "198.18.1.1"
    }
  }
  validation {
    condition = (
      can(regexall("^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$", var.dns_server["server"]))
    )
    error_message = "The DNS Server is not a valid IPv4 Address."
  }
}

locals {
  dns_server = {
    for k, v in var.dns_server : k => {
      preferred = coalesce(v.preferred, false)
      server = coalesce(v.server, "198.18.1.1")
    }
  }
}

我知道变量字段中的默认值未被使用,但我将其用作 terraform 文档输出的占位符。

我也知道我上面的验证是不正确的,因为如果用户使用默认服务器 IPv4,则在本地定义之前不会设置。我只是不知道进行验证的方法,因为我可信赖的 google 搜索没有找到任何类似的例子。

如果您需要有关代码使用方式的更多详细信息,代码位于此处:

https://github.com/scotttyso/terraform-aci-fabric/tree/main/test

如果我注释掉验证,其他一切都正常。提前致谢。

这就是你想要的吗?

variable "mapobject" {
 type = map(object({
   cidr_block = string
   destination_type = string
   }
  ))

 validation {
  condition = alltrue([
     for o in var.mapobject : contains(["CIDR_BLOCK","NETWORK_SECURITY_GROUP","SERVICE_CIDR_BLOCK"],o.destination_type)])  error_message = "All destination_types must be one of CIDR_BLOCK,NETWORK_SECURITY_GROUP or SERVICE_CIDR_BLOCK!"
   }
}

变量赋值

mapobject = {
 "r0" = {cidr_block = "10.1.1.0/24",destination_type = "CIDR_BLOCK" }
}

验证成功,如下所示失败(按要求)

mapobject = {

"r0" = {​​cidr_block = "10.1.1.0/24",destination_type = "CIRD_BLOCK" } }

Error: Invalid value for variable

  on main.tf line 86:
  86: variable "mapobject" {

All destination_types must be one of CIDR_BLOCK,NETWORK_SECURITY_GROUP or
SERVICE_CIDR_BLOCK!

This was checked by the validation rule at main.tf:93,2-12.

如果是,那么荣誉就在这里:https://discuss.hashicorp.com/t/validate-list-object-variables/18291/2