All the DaemonSets defined within the openshift-multus namespace have a node selector predicate on the kubernetes.io/os label to schedule the daemonset's pods only on linux workers. The wherebout-reconciler seems missing it. We might need to add the `kubernetes.io/os: linux` label to stay consistent with the other daemonsets definitions and avoid risks in case of clusters with windows workers.

4.13+

Always

1. oc get daemonsets -n openshift-multus
NAME                            DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR            AGE
multus                          6         6         6       6            6           kubernetes.io/os=linux   4h1m
multus-additional-cni-plugins   6         6         6       6            6           kubernetes.io/os=linux   4h1m
multus-networkpolicy            6         6         6       6            6           kubernetes.io/os=linux   19s

 

network-metrics-daemon          6         6         6       6            6           kubernetes.io/os=linux   4h1m whereabouts-reconciler          6         6         6       6            6           <none>                   23s

note the missing kuberentes.io/os nodeselector

The whereabouts-reconciler should also have the nodeselecto term kubernetes.io/os: linux.

https://redhat-internal.slack.com/archives/CFFSAHWHF/p1687158805205059