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Merge pull request #58676 from feiskyer/fix-58675

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Automatic merge from submit-queue (batch tested with PRs 58697, 58658, 58676, 58674). 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>.

 Fix possible panic when getting Azure primary IPConfig

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

kube-controller-manager panic when removing a lot of nodes from kubernetes cluster (see #58675). 

**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 #58675

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2018-01-23 10:27:38 -08:00 committed by GitHub
commit dc1843ebe4
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2 changed files with 7 additions and 3 deletions
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6
pkg/cloudprovider/providers/azure/azure_standard.go
View File

@ -221,6 +221,10 @@ func getPrimaryInterfaceID(machine compute.VirtualMachine) (string, error) {
} }
func getPrimaryIPConfig(nic network.Interface) (*network.InterfaceIPConfiguration, error) { func getPrimaryIPConfig(nic network.Interface) (*network.InterfaceIPConfiguration, error) {
if nic.IPConfigurations == nil {
return nil, fmt.Errorf("nic.IPConfigurations for nic (nicname=%q) is nil", *nic.Name)
}
if len(*nic.IPConfigurations) == 1 { if len(*nic.IPConfigurations) == 1 {
return &((*nic.IPConfigurations)[0]), nil return &((*nic.IPConfigurations)[0]), nil
} }
@ -231,7 +235,7 @@ func getPrimaryIPConfig(nic network.Interface) (*network.InterfaceIPConfiguratio
} }
} }
return nil, fmt.Errorf("failed to determine the determine primary ipconfig. nicname=%q", *nic.Name) return nil, fmt.Errorf("failed to determine the primary ipconfig. nicname=%q", *nic.Name)
} }
func isInternalLoadBalancer(lb *network.LoadBalancer) bool { func isInternalLoadBalancer(lb *network.LoadBalancer) bool {

4
pkg/cloudprovider/providers/azure/azure_vmss.go
View File

@ -785,11 +785,11 @@ func (ss *scaleSet) EnsureHostsInPool(serviceName string, nodes []*v1.Node, back
for _, curNode := range nodes { for _, curNode := range nodes {
curScaleSetName, err := extractScaleSetNameByVMID(curNode.Spec.ExternalID) curScaleSetName, err := extractScaleSetNameByVMID(curNode.Spec.ExternalID)
if err != nil { if err != nil {
glog.V(2).Infof("Node %q is not belonging to any scale sets, omitting it", curNode.Name) glog.V(4).Infof("Node %q is not belonging to any scale sets, omitting it", curNode.Name)
continue continue
} }
if curScaleSetName != vmSetName { if curScaleSetName != vmSetName {
glog.V(2).Infof("Node %q is not belonging to scale set %q, omitting it", curNode.Name, vmSetName) glog.V(4).Infof("Node %q is not belonging to scale set %q, omitting it", curNode.Name, vmSetName)
continue continue
} }