If you are automating AWS resources in Terraform, then you will want to not hardcode things as much as possible.
Terraform makes it possible to pull the account_id from the local credentials.
How to get the AccountID data attributes
Create a data.tf file and place the following item in it:
data "aws_caller_identity" "current" {}
Now the account_id will be available to you within your standard code as follows:
data.aws_caller_identity.current.account_id
How to use the AccountID data attributes
This can now be used in a module, or wherever you need to reference the account id:
module "my_custom_module" {
tags = var.tags
vpcid = var.vpcid
subnetids = var.subnetid
account_id = data.aws_caller_identity.current.account_id
source = "./modules/some_module"
}
