{
  // Required arguments
  name:: error "'name' must be specified",
  port:: error "'port' must be specified",

  ...,
}

{
  local template = = import "./template.jsonnet";

  template + {
    name:: "service",
    port:: 8080,
}

{
  local template = = import "./template.jsonnet";

  template + {
    name:: "service",
    port:: [8080,8081,8082],
}