GROT Academy - Technical Practitioner 101, Module 6 PromQL Lab - "container label not found" in Hint Checker

Grafana
1

Hi Grafana Community,

I am currently working on the GROT Academy - Technical Practitioner 101, Module 6: PromQL Lab and I’m stuck on the challenge question:
“How would you query for up metrics coming from the LGTM containers?”
Environment:

  • Cluster name: grot-academy
  • Namespace: default
  • LGTM pods: lgtm-* (e.g., lgtm-grafana, lgtm-loki, etc.)
    What I tried:
  • up{namespace=“default”, container=“lgtm”}
  • up{namespace=“default”, container=~“lgtm.*”}
  • up{namespace=“default”, pod=~"lgtm."}
  • label_replace(up{namespace=“default”, pod=~"lgtm."}, “container”, “$1”, “pod”, “(lgtm.*)”)
    Error from Hint Checker:
  • “Your query is valid.” :white_check_mark:
  • “container label not found.” :cross_mark:
    Observation:
    The Grafana Cloud metrics builder suggests up{namespace=“default”, container=“lgtm”}
    but the hint checker still returns “container label not found.” The container label does not appear to exist on the up metric in the lab environment, which may be related to a known helm chart change affecting GROT Academy labs.
    Any guidance on the correct query or if this is a known lab environment issue would be greatly appreciated.

Screenshot 2026-05-05 155115
Screenshot 2026-05-05 1551152433×971 334 KB

Thank you!

2

check with this
up
or
up{namespace=“default”}
pod: Does it actually start with lgtm-?

3

Hello,

Thank you for your reply. I’ve reached out to grafana support team and they’ve confirmed they’re aware of it and are actively working on a fix. It looks like it’s due to a known issue with a recent lab/helm chart change.

4

ok thanks @alexlacanilaojr for the update.

5

Hi all,
We are aware of this issue in the PromQL Lab and are working to resolve it. Thanks for your patience!

We will ping back once we’ve got this taken care of.

Jazz