Terraform从TG路由表和TG附件vpns创建映射/dict，以便在资源aws_ec2_transit_gateway_route_table_association中引用

Question

添加类似于Python的psuedo代码来解释我想通过Terraform实现什么。

我有6个传输网关路由表，10个传输网关VPN附件，我需要这个作为tansit网关路由表的关联和传播。

试图创建一个可以在资源函数aws_ec2_transit_gateway_route_table_association中引用的本地 "map/dict“资源函数需要transit_gateway_attachment_id和transit_gateway_route_table_id

tg_rt = [
  {
    "name" = "A"
    "tg_rt_id" = "tgw-rtb-aa"
  },
  {
    "name" = "B"
    "tg_rt_id" = "tgw-rtb-bb"
  },
  {
    "name" = "C"
    "tg_rt_id" = "tgw-rtb-cc"
  },
  {
    "name" = "D"
    "tg_rt_id" = "tgw-rtb-dd"
  },
  {
    "name" = "E"
    "tg_rt_id" = "tgw-rtb-ee"
  },
{
    "name" = "F"
    "tg_rt_id" = "tgw-rtb-ff"
  },
]
tga_vpn = [
  {
    "name" = "1"
    "tga_id" = "tgw-attach-11"
  },
  {
    "name" = "2"
    "tga_id" = "tgw-attach-22"
  },
  {
    "name" = "3"
    "tga_id" = "tgw-attach-33"
  },
  {
    "name" = "4"
    "tga_id" = "tgw-attach-44"
  },
  {
    "name" = "5"
    "tga_id" = "tgw-attach-55"
  },
  {
    "name" = "6"
    "tga_id" = "tgw-attach-66"
  },
  {
    "name" = "7"
    "tga_id" = "tgw-attach-77"
  },
  {
    "name" = "8"
    "tga_id" = "tgw-attach-88"
  },
]

  for tgw_rt in tgw_rts:  # list of dicts with id and name 
    for tga_vpn in tga_vpns: # # list of dict with id and name 
      if tgw_rt.name == "PROD" and tga_vpn.name in [1, 2, 3, 4]:
        rt_id = tgw_rt.id
        vpn_attachment_id = tga_vpn.id
      elif tgw_rt.name == "DEV" and tga_vpn.name in [5, 6, 7, 8]:
        rt_id = tgw_rt.id
        vpn_attachment_id = tga_vpn.id
      elif tgw_rt.name == "STAGING" and tga_vpn.name in [9, 10, 11, 12]:
        rt_id = tgw_rt.id
        vpn_attachment_id = tga_vpn.id

resource "aws_ec2_transit_gateway_route_table_association" "TGW-RT-VPN-ASSOCIATION" {
  
  for_each = {
    for tg_vpn_attach, tg_vpn_attach_details in local.above_map : tg_vpn_attach => tg_vpn_attach_details
  }
  transit_gateway_route_table_id      = each.rt_id # for reference
  transit_gateway_attachment_id     = each.vpn_attachment_id # for reference 
}

同样，我已经部署了一个TGW，它有6个路由表/路由，有几个VPC和VPN附件类型，并希望根据上面的逻辑格式创建正确的关联/传播。

如果有任何问题和帮助，请告诉我。

谢谢!

Answer 1

您的[9, 10, 11, 12]中没有tga_vpn，所以我将只关注prod和dev。

假设我正确地理解了您想要的结果，您应该能够构造您的数据结构，如下所示：

variable "tg_rt" {

  default = [
    {
      "name" = "A"
      "tg_rt_id" = "tgw-rtb-aa"
    },
    {
      "name" = "B"
      "tg_rt_id" = "tgw-rtb-bb"
    },
    {
      "name" = "C"
      "tg_rt_id" = "tgw-rtb-cc"
    },
    {
      "name" = "D"
      "tg_rt_id" = "tgw-rtb-dd"
    },
    {
      "name" = "E"
      "tg_rt_id" = "tgw-rtb-ee"
    },
  {
      "name" = "F"
      "tg_rt_id" = "tgw-rtb-ff"
    },
  ]

}
variable "tga_vpn" {

  default =  [
    {
      "name" = "1"
      "tga_id" = "tgw-attach-11"
    },
    {
      "name" = "2"
      "tga_id" = "tgw-attach-22"
    },
    {
      "name" = "3"
      "tga_id" = "tgw-attach-33"
    },
    {
      "name" = "4"
      "tga_id" = "tgw-attach-44"
    },
    {
      "name" = "5"
      "tga_id" = "tgw-attach-55"
    },
    {
      "name" = "6"
      "tga_id" = "tgw-attach-66"
    },
    {
      "name" = "7"
      "tga_id" = "tgw-attach-77"
    },
    {
      "name" = "8"
      "tga_id" = "tgw-attach-88"
    },
  ]  
}

locals {

  prod = merge(flatten([ for idx1, tgw_rt in var.tg_rt:
           {
              for idx2, tga_vpn in var.tga_vpn:
               "${tgw_rt.tg_rt_id}-${ tga_vpn.tga_id}" => 
                      { rt_id = tgw_rt.tg_rt_id
                        vpn_attachment_id = tga_vpn.tga_id
                      } if contains(["1", "2", "3", "4"], tga_vpn.name)
                         
            }    
      ])...)
      
   dev = merge(flatten([ for idx1, tgw_rt in var.tg_rt:
           {
              for idx2, tga_vpn in var.tga_vpn:
               "${tgw_rt.tg_rt_id}-${ tga_vpn.tga_id}" => 
                      { rt_id = tgw_rt.tg_rt_id
                        vpn_attachment_id = tga_vpn.tga_id
                      } if contains(["5", "6", "7", "8"], tga_vpn.name)
                         
            }    
      ])...) 
      
   prod_dev_map = {
     prod = local.prod
     dev  = local.dev
   }
       
}

output "prod" {
  value = local.prod_dev_map
}

这将导致prod_dev_map为：

{
  "dev" = {
    "tgw-rtb-aa-tgw-attach-55" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-55"
    }
    "tgw-rtb-aa-tgw-attach-66" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-66"
    }
    "tgw-rtb-aa-tgw-attach-77" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-77"
    }
    "tgw-rtb-aa-tgw-attach-88" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-88"
    }
    "tgw-rtb-bb-tgw-attach-55" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-55"
    }
    "tgw-rtb-bb-tgw-attach-66" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-66"
    }
    "tgw-rtb-bb-tgw-attach-77" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-77"
    }
    "tgw-rtb-bb-tgw-attach-88" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-88"
    }
    "tgw-rtb-cc-tgw-attach-55" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-55"
    }
    "tgw-rtb-cc-tgw-attach-66" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-66"
    }
    "tgw-rtb-cc-tgw-attach-77" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-77"
    }
    "tgw-rtb-cc-tgw-attach-88" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-88"
    }
    "tgw-rtb-dd-tgw-attach-55" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-55"
    }
    "tgw-rtb-dd-tgw-attach-66" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-66"
    }
    "tgw-rtb-dd-tgw-attach-77" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-77"
    }
    "tgw-rtb-dd-tgw-attach-88" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-88"
    }
    "tgw-rtb-ee-tgw-attach-55" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-55"
    }
    "tgw-rtb-ee-tgw-attach-66" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-66"
    }
    "tgw-rtb-ee-tgw-attach-77" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-77"
    }
    "tgw-rtb-ee-tgw-attach-88" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-88"
    }
    "tgw-rtb-ff-tgw-attach-55" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-55"
    }
    "tgw-rtb-ff-tgw-attach-66" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-66"
    }
    "tgw-rtb-ff-tgw-attach-77" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-77"
    }
    "tgw-rtb-ff-tgw-attach-88" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-88"
    }
  }
  "prod" = {
    "tgw-rtb-aa-tgw-attach-11" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-11"
    }
    "tgw-rtb-aa-tgw-attach-22" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-22"
    }
    "tgw-rtb-aa-tgw-attach-33" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-33"
    }
    "tgw-rtb-aa-tgw-attach-44" = {
      "rt_id" = "tgw-rtb-aa"
      "vpn_attachment_id" = "tgw-attach-44"
    }
    "tgw-rtb-bb-tgw-attach-11" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-11"
    }
    "tgw-rtb-bb-tgw-attach-22" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-22"
    }
    "tgw-rtb-bb-tgw-attach-33" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-33"
    }
    "tgw-rtb-bb-tgw-attach-44" = {
      "rt_id" = "tgw-rtb-bb"
      "vpn_attachment_id" = "tgw-attach-44"
    }
    "tgw-rtb-cc-tgw-attach-11" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-11"
    }
    "tgw-rtb-cc-tgw-attach-22" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-22"
    }
    "tgw-rtb-cc-tgw-attach-33" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-33"
    }
    "tgw-rtb-cc-tgw-attach-44" = {
      "rt_id" = "tgw-rtb-cc"
      "vpn_attachment_id" = "tgw-attach-44"
    }
    "tgw-rtb-dd-tgw-attach-11" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-11"
    }
    "tgw-rtb-dd-tgw-attach-22" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-22"
    }
    "tgw-rtb-dd-tgw-attach-33" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-33"
    }
    "tgw-rtb-dd-tgw-attach-44" = {
      "rt_id" = "tgw-rtb-dd"
      "vpn_attachment_id" = "tgw-attach-44"
    }
    "tgw-rtb-ee-tgw-attach-11" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-11"
    }
    "tgw-rtb-ee-tgw-attach-22" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-22"
    }
    "tgw-rtb-ee-tgw-attach-33" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-33"
    }
    "tgw-rtb-ee-tgw-attach-44" = {
      "rt_id" = "tgw-rtb-ee"
      "vpn_attachment_id" = "tgw-attach-44"
    }
    "tgw-rtb-ff-tgw-attach-11" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-11"
    }
    "tgw-rtb-ff-tgw-attach-22" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-22"
    }
    "tgw-rtb-ff-tgw-attach-33" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-33"
    }
    "tgw-rtb-ff-tgw-attach-44" = {
      "rt_id" = "tgw-rtb-ff"
      "vpn_attachment_id" = "tgw-attach-44"
    }
  }
}