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Merge pull request #59939 from dims/avoid-calls-to-cloud-instances-unless-taint-present

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Automatic merge from submit-queue (batch tested with PRs 59939, 59830). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Avoid call to get cloud instances

**What this PR does / why we need it**:

if a node does not have the taint, we really don't need to make calls
to get the list of instances from the cloud provider

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:
Found when reviewing code for #59887

**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2018-02-15 16:43:34 -08:00 committed by GitHub
commit 281cb00776
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1 changed files with 6 additions and 6 deletions
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12
pkg/controller/cloud/node_controller.go
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@ -324,18 +324,18 @@ func (cnc *CloudNodeController) UpdateCloudNode(_, newObj interface{}) {
func (cnc *CloudNodeController) AddCloudNode(obj interface{}) {
node := obj.(*v1.Node)
instances, ok := cnc.cloud.Instances()
if !ok {
utilruntime.HandleError(fmt.Errorf("failed to get instances from cloud provider"))
return
}
cloudTaint := getCloudTaint(node.Spec.Taints)
if cloudTaint == nil {
glog.V(2).Infof("This node %s is registered without the cloud taint. Will not process.", node.Name)
return
}
instances, ok := cnc.cloud.Instances()
if !ok {
utilruntime.HandleError(fmt.Errorf("failed to get instances from cloud provider"))
return
}
err := clientretry.RetryOnConflict(UpdateNodeSpecBackoff, func() error {
curNode, err := cnc.kubeClient.CoreV1().Nodes().Get(node.Name, metav1.GetOptions{})
if err != nil {