Terraform template remove empty lines and comment lines starting with '#' symbol

main.tf

variable "match_comment"    { default = "/(?U)(?m)(?s)(^#.*$)/" }
variable "match_empty_line" { default = "/(?m)(?s)(^[\r\n])/" }

resource "helm_release" "myapp" {
  name             = "myapp"
  chart            = "${path.module}/charts/myapp"
  values = [
    replace(
        replace(
          templatefile("${path.module}/templates/values-override.yaml.tpl", {
            nfsServer = "k8s-nfs"
          }), var.match_comment, ""), var.match_empty_line, "")
  ]
}

# Terraform regex is using re2 library
# * Regex flags are enabled by prefixinf the search:
# ** (?m) - multi-line mode (default false)
# ** (?s) - let . match \n (default false)
# ** (?U) - ungreedy (default false), so stop matching comments at EOL