Replica of a KMS key for multi-regional KMS keys. E.g. if you have read-replicas of an RDS instance in multiple geo-regions that use an KMS key for encryption.
module "kms-key-replica" {
source = "github.com/dbl-works/terraform//kms-key-replica?ref=v2021.07.01"
# Required
master_kms_key_arn = "arn:aws:kms:${var.master_region}:${var.account_id}:key/mrk-XXX" # NOTE: multi region keys start with "mrk"
environment = "staging"
project = "someproject"
alias = "rds"
}