To ensure the Kubernetes ConfigMap is mounted into the sdn daemonset pods with the
correct ownership, make sure that the sdn-config ConfigMap is mounted using
a ConfigMap at the /config mount point and that the sdn container
points to that configuration using the --proxy-config command line option.
Run:
oc get -nopenshift-sdn ds sdn -ojson | jq -r '.spec.template.spec.containers[] | select(.name == "sdn")'
and ensure the --proxy-config parameter points to
/config/kube-proxy-config.yaml and that the config mount point is
mounted from the sdn-config ConfigMap.