docs: public static Map<String, String> commonTags() {
      final Map<String, String> commonTags = new HashMap<>();
      put(commonTags, "nf.app", Env.app());
      put(commonTags, "nf.cluster", Env.cluster());
      put(commonTags, "nf.asg", Env.asg());
      put(commonTags, "nf.stack", Env.stack());
      put(commonTags, "nf.zone", Env.zone());
      put(commonTags, "nf.vmtype", Env.vmtype());
      put(commonTags, "nf.node", Env.instanceId());
      put(commonTags, "nf.region", Env.region());
      put(commonTags, "nf.account", Env.accountId());
      put(commonTags, "nf.task", Env.task());
      put(commonTags, "nf.job", Env.job());
      return commonTags;
    }