Terraform example showing list, count and function usage on resources

terraform-github-example-5.tf

locals {
  org_user_list = [
    "someguy",
    "someotherguy",
    "dgmorales"
  ]
}
resource "github_membership" "dgmorales" {
  count      = "${length(local.org_user_list)}"
  username   = "${element(local.org_user_list, count.index)}"
  role       = "member"
}