Bug ID 2141181: K3s metrics server continues using stale bearer token, logs "Token has expired"

Last Modified: Nov 24, 2025

Affected Product(s):
F5OS F5OS-A(all modules)

Known Affected Versions:
F5OS-A 1.5.1, F5OS-A 1.5.2, F5OS-A 1.5.3, F5OS-A 1.5.4, F5OS-A 1.8.0, F5OS-A 1.8.3

Opened: Oct 29, 2025

Severity: 4-Minor

Symptoms

Expiry of the service account token inside the k3s metrics server pod causes log messages similar to the following to be written to /var/log/messages: "Unable to authenticate the request" err="[invalid bearer token, Token has expired.]"

Impact

No impact, other than log messages.

Conditions

-- F5OS-A. -- System has been running (without restart) for at least a year.

Workaround

Restart the k3s metrics-server pod: kubectl -n kube-system delete pod -l k8s-app=metrics-server

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips