autotag.ts

import * as pulumi from "@pulumi/pulumi";
import { isTaggable } from "./taggable";

/**
 * registerAutoTags registers a global stack transformation that merges a set
 * of tags with whatever was also explicitly added to the resource definition.
 */
export function registerAutoTags(autoTags: Record<string, string>): void {
  pulumi.runtime.registerStackTransformation((args) => {
    if (isTaggable(args.type)) {
      args.props["tags"] = { ...args.props["tags"], ...autoTags };
      return { props: args.props, opts: args.opts };
    }
    return undefined;
  });
}