// GetServerSupportedSMPatchVersionFromFactory is a wrapper of GetServerSupportedSMPatchVersion(),
// It takes a Factory, returns the max version the server supports.
func GetServerSupportedSMPatchVersionFromFactory(f Factory) (strategicpatch.StrategicMergePatchVersion, error) {
clientSet, err := f.ClientSet()
if err != nil {
return strategicpatch.Unknown, err
}
return strategicpatch.GetServerSupportedSMPatchVersion(clientSet.Discovery())
}
func (nsu *nodeStatusUpdater) UpdateNodeStatuses() error {
smPatchVersion, err := strategicpatch.GetServerSupportedSMPatchVersion(nsu.kubeClient.Discovery())
if err != nil {
return err
}
nodesToUpdate := nsu.actualStateOfWorld.GetVolumesToReportAttached()
for nodeName, attachedVolumes := range nodesToUpdate {
nodeObj, exists, err := nsu.nodeInformer.GetStore().GetByKey(string(nodeName))
if nodeObj == nil || !exists || err != nil {
// If node does not exist, its status cannot be updated, log error and
// reset flag statusUpdateNeeded back to true to indicate this node status
// needs to be udpated again
glog.V(2).Infof(
"Could not update node status. Failed to find node %q in NodeInformer cache. %v",
nodeName,
err)
nsu.actualStateOfWorld.SetNodeStatusUpdateNeeded(nodeName)
continue
}
clonedNode, err := conversion.NewCloner().DeepCopy(nodeObj)
if err != nil {
return fmt.Errorf("error cloning node %q: %v",
nodeName,
err)
}
node, ok := clonedNode.(*api.Node)
if !ok || node == nil {
return fmt.Errorf(
"failed to cast %q object %#v to Node",
nodeName,
clonedNode)
}
oldData, err := json.Marshal(node)
if err != nil {
return fmt.Errorf(
"failed to Marshal oldData for node %q. %v",
nodeName,
err)
}
node.Status.VolumesAttached = attachedVolumes
newData, err := json.Marshal(node)
if err != nil {
return fmt.Errorf(
"failed to Marshal newData for node %q. %v",
nodeName,
err)
}
patchBytes, err :=
strategicpatch.CreateStrategicMergePatch(oldData, newData, node, smPatchVersion)
if err != nil {
return fmt.Errorf(
"failed to CreateStrategicMergePatch for node %q. %v",
nodeName,
err)
}
_, err = nsu.kubeClient.Core().Nodes().PatchStatus(string(nodeName), patchBytes)
if err != nil {
// If update node status fails, reset flag statusUpdateNeeded back to true
// to indicate this node status needs to be udpated again
nsu.actualStateOfWorld.SetNodeStatusUpdateNeeded(nodeName)
return fmt.Errorf(
"failed to kubeClient.Core().Nodes().Patch for node %q. %v",
nodeName,
err)
}
glog.V(2).Infof(
"Updating status for node %q succeeded. patchBytes: %q VolumesAttached: %v",
nodeName,
string(patchBytes),
node.Status.VolumesAttached)
}
return nil
}