将地图转换为地形aws_autoscaling_group

Question

我具有以下子网ID映射作为要在Terraform aws_autoscaling_group资源中使用的变量：

subnet_ids = {
  "us-east-1" = "subnet-123abc,subnet-456def,subnet-789ghi"
  "us-west-2" = "subnet-1a2b3c,subnet-4c5d6e,subnet-7g8h9i"
}

，变量为

variable subnet_ids {
  description = "subnet ids"
  type        = "map"
}

但是这不能正常工作，因为Terraform抱怨它需要一个列表但正在查看地图。

这是通过临时设置一个区域来实现的：

subnet_ids = ["subnet-123abc", "subnet-456def", "subnet-789ghi"]

，变量为：

variable subnet_ids {
  description = "subnet ids"
  type        = "list"
}

并作为vpc_zone_identifier = "${var.subnet_ids}"

传递

因此，非常需要一种方法来使用地图并根据所选择的区域传递列表

谢谢

Answer 1

Try using the lookup command and a variable to represent your region to choose a value from your map:

variable region {
   description = "aws region"
   default = "us-east-1"
}

...

vpc_zone_identifier = ["${lookup(var.subnet_ids, var.region)}"]

See the documentation for more examples.

Answer 2

对于在security groups中要在Terraform中自动缩放组资源遇到问题的人，这就是将地图传递到列表的方式

这是有效的

security_groups = ["${split(",",lookup(var.security_groups, var.aws_region))}"]

Answer 3

或者...

variable region {
   description = "aws region"
   default = "us-east-1"
}

...

vpc_zone_identifier = ["${var.subnet_ids["${var.region}"]}"]