您可以将 AWS 参数存储数据源的值分配给 Terraform 中的变量吗？

Question

I am trying to read a value from AWS Parameter Store and assign its value to a variable.

# data source
data "aws_ssm_parameter" "environment" {
  name = "environment"
}

# variable
variable "environment" {
  type        = string
  description = "AWS Environment Name"
  default     = data.aws_ssm_parameter.environment.value
}

Is this possible?

I know you can use data.aws_ssm_parameter.environment.value wherever I need to use a variable but is it possible to simplify it by assigning it to a variable.

Answer 1

That is not possible. However, you can use local variables [1] for that. For example:

locals {
  environment = data.aws_ssm_parameter.environment.value
}

You would then reference that value elsewhere in the code with local.environment .

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[1] https://developer.hashicorp.com/terraform/language/values/locals