在terraform真假表达式中一致类型

Question

我有带有AmazonMQ的配置模块

module "amazonmq_cluster" {
      source = "git::https://github.com/cloudposse/terraform-aws-mq-broker.git?ref=0.15.0"
    
      namespace                    = module.amazonmq_cluster_label.namespace
      stage                        = module.amazonmq_cluster_label.stage
      name                         = module.amazonmq_cluster_label.id
      apply_immediately            = true
      auto_minor_version_upgrade   = false
      deployment_mode              = var.cluster_deployment_mode[local.stage]
      engine_type                  = var.cluster_engine_type[local.stage]
      engine_version               = var.cluster_engine_version[local.stage]
      host_instance_type           = var.cluster_host_instance_type[local.stage]
      publicly_accessible          = false
      general_log_enabled          = true
      audit_log_enabled            = false
      encryption_enabled           = true
      use_aws_owned_key            = true
      vpc_id                       = module.vpc.vpc_id
      subnet_ids                   = var.cluster_deployment_mode[local.stage] != "ACTIVE_STANDBY_MULTI_AZ" ? module.vpc.private_subnet_ids[0] : module.vpc.private_subnet_ids
      security_groups               = [module.sg.groups]
    }

并且我需要用字符串的变量映射有条件地描述subnet_ids。字符串映射设置为terraform工作区。但是，当我尝试创建模块terraform时，用不一致的条件结果类型给出错误。

Error: Inconsistent conditional result types

  on amazonmq.tf line 31, in module "amazonmq_cluster":
  31:   subnet_ids                   = var.cluster_deployment_mode[local.stage] != "ACTIVE_STANDBY_MULTI_AZ" ? module.vpc.private_subnet_ids[0] : module.vpc.private_subnet_ids
    |----------------
    | local.stage is "staging"
    | module.vpc.private_subnet_ids is tuple with 2 elements
    | module.vpc.private_subnet_ids[0] is "XXX"
    | var.cluster_deployment_mode is map of string with 3 elements

我怎样才能正确设置这个条件？如果!=ACTIVE_STANDBY_MULTI_AZ传递一个VPC ID，否则从输出传递所有。

Answer 1

我怎样才能正确设置这个条件？如果!=ACTIVE_STANDBY_MULTI_AZ传递一个VPC ID，否则从输出传递所有。

尝试将此作为表达式：

var.cluster_deployment_mode[local.stage] != "ACTIVE_STANDBY_MULTI_AZ" ? [module.vpc.private_subnet_ids[0]] : module.vpc.private_subnet_ids

它为第一个选项构建一个单一元素列表。