cilium metrics list: json: unsupported value: NaN #19985
Description
Summary
Collecting a sysdump on a Kind cluster results in the following warning, presumably when cilium sysdump attempts to retrieve the output of cilium metrics list.
level=warning msg="Cilium API handler panicked" client=@ method=GET panic_message="json: unsupported value: NaN" subsys=api url=/v1/metrics/
This is with Cilium ecfab0e so #19496 is included.
Sysdump: cilium-sysdump-20220527-151157.zip.
Reproduction Steps
make kind
./cilium install --agent-image=quay.io/cilium/cilium-ci --operator-image=quay.io/cilium/operator-generic-ci --version=latest --config debug=true --version v1.12.0-rc2 --chart-directory ~/gowork/src/github.com/cilium/cilium/install/kubernetes/cilium
./cilium sysdump
kubectl logs -l k8s-app=cilium -n kube-system --tail=-1 | grep level=warn