+++ This bug was initially created as a clone of Bug #1788521 +++ Description of problem: We use SetRecommendedServingInfoDefaults() in library-go across all operators to provide defaults for API servers that those operators run to serve metrics and healthz. The current default for binding network is hardcoded to "tcp4" which won't work in IPv6 clusters. Actual results: Default is "tcp4" Expected results: Default should be "tcp" Additional info: --- Additional comment from Michal Fojtik on 2020-01-07 12:15:08 UTC --- Moving directly to verified as there is nothing for QA to verify until this hits the individual operators.
Verified ENV and steps, Client Version: v4.3.0 Server Version: 4.3.0-rc.2 Kubernetes Version: v1.16.2 $ master=$(oc get node | grep master | awk '{print $1}' | head -1) $ oc debug node/$master After logged in the master debug pod, sh-4.2# chroot /host - check if the field "bindNetwork":"tcp4" have not been changed, found them as below, # grep -rnw /etc/kubernetes -e '"bindNetwork":"tcp4"' | awk -F: '{print $1}' /etc/kubernetes/static-pod-resources/kube-apiserver-pod-3/configmaps/config/config.yaml /etc/kubernetes/static-pod-resources/kube-apiserver-pod-4/configmaps/config/config.yaml /etc/kubernetes/static-pod-resources/kube-apiserver-pod-6/configmaps/config/config.yaml /etc/kubernetes/static-pod-resources/kube-apiserver-pod-7/configmaps/config/config.yaml /etc/kubernetes/static-pod-resources/kube-apiserver-pod-8/configmaps/config/config.yaml /etc/kubernetes/static-pod-resources/kube-apiserver-pod-9/configmaps/config/config.yaml /etc/kubernetes/static-pod-resources/kube-apiserver-pod-10/configmaps/config/config.yaml /etc/kubernetes/static-pod-resources/kube-apiserver-pod-11/configmaps/config/config.yaml - check if the field "bindNetwork":"tcp" have been changed, found them as below, # grep -rnw /etc/kubernetes -e '"bindNetwork":"tcp"' | awk -F: '{print $1}' /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-4/configmaps/cluster-policy-controller-config/config.yaml /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-6/configmaps/cluster-policy-controller-config/config.yaml /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-7/configmaps/cluster-policy-controller-config/config.yaml So I think the fix is not complete for bug.
> Moving directly to verified as there is nothing for QA to verify until this hits the individual operators. @QE: this is a library fix. It does not change operators. There is nothing to test.
Per https://bugzilla.redhat.com/show_bug.cgi?id=1788522#c6, move the bug verified.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:2256