dictionary - Terraform 多层 map

Question

在尝试使用多层 map (3 层以上)时，我在“terraform plan”上遇到错误，似乎无法指出确切的问题。错误:“给定值对变量“secgroups”无效:元素“bastion”:需要属性“direction”。”我的 variables.tf 是否正确映射到 secgroups.auto.tf？ ports_min 和 ports_max 将是为安全组名称打开的全部端口列表。

版本:

Terraform v0.13.0
+ provider registry.terraform.io/hashicorp/local v1.4.0
+ provider registry.terraform.io/hashicorp/null v2.1.2
+ provider registry.terraform.io/hashicorp/tls v2.2.0
+ provider registry.terraform.io/terraform-providers/openstack v1.26.0

变量.tf

variable "secgroups" {
  type = map(object({
  direction = (map(object({
    protocols = (map(object({
      name              = string
      description       = string
      ports_min         = list(number)
      ports_max         = list(number)
      remote_ip_prefix  = list(string)
      remote_group_id   = list(string)
      security_group_id = list(string)
    })))
  })))
 }))
}

secgroups.auto.tfvars(只是一个片段)

  ssh_from_bastion = {
    ingress = {
      tcp = {
        ports_min         = [22]
        ports_max         = [22]
        remote_group_id   = ["openstack_networking_secgroup_v2.bastion.id"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      },
      udp = {
        ports_min         = [0]
        ports_max         = [0]
        remote_group_id   = ["openstack_networking_secgroup_v2.bastion.id"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      }
    },
    egress = {
      tcp = {
        ports_min         = [0]
        ports_max         = [0]
        remote_ip_prefix  = ["0.0.0.0/0"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      },
      udp = {
        ports_min         = [0]
        ports_max         = [0]
        remote_ip_prefix  = ["0.0.0.0/0"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      }
    }
  },

主.tf

 locals {
   security_groups = flatten({
   for secgroup_name,direction in var.secgroups : {
     name        = each.secgroup_name
     description = "Security group for ${each.secgroup_name}"
       for protocol,config in each.direction : {
         direction = each.direction
         protocol  = each.protocol
           for config_value in config : {
             ports_min         = each.config_value.ports_min
             ports_max         = each.config_value.ports_max
             remote_ip_prefix  = each.config_value.remote_ip_prefix
             security_group_id = each.config_value.security_group_id
           }
         }
       }
   })
 } 

Answer 1

您的定义有几个问题。

假设您的完整 secgroups.auto.tfvars 是:

secgroups = {
 ssh_from_bastion = {
    ingress = {
      tcp = {
        ports_min         = [22]
        ports_max         = [22]
        remote_group_id   = ["openstack_networking_secgroup_v2.bastion.id"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      },
      udp = {
        ports_min         = [0]
        ports_max         = [0]
        remote_group_id   = ["openstack_networking_secgroup_v2.bastion.id"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      }
    },
    egress = {
      tcp = {
        ports_min         = [0]
        ports_max         = [0]
        remote_ip_prefix  = ["0.0.0.0/0"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      },
      udp = {
        ports_min         = [0]
        ports_max         = [0]
        remote_ip_prefix  = ["0.0.0.0/0"]
        security_group_id = ["openstack_networking_secgroup_v2.bastion.id"]
      }
    }
  }
}

对应的定义应该是:

variable "secgroups" {
  type = map(map(map(object({
        ports_min         = list(number)
        ports_max         = list(number)
        security_group_id = list(string)
      }))))
}

但是上面的内部对象会丢弃所有额外的属性，例如remote_ip_prefix，因为你的对象不一致。但是，由于 ingress、egress、tcp 和 udp 似乎是一致的，您可能会使用以下内容:

variable "secgroups" {
  type = map(object({
            ingress = object({tcp = map(any), udp = map(any)})
            egress =  object({tcp = map(any), udp = map(any)})
        }))
}

作为最后一个资源，如果没有什么是一致的，那么你可以使用:

variable "secgroups" {
  type = map(map(map(map(any))))
}

更新:测试输出

output "test" {
  value = var.secgroups.ssh_from_bastion.ingress.tcp.ports_min
}