Merge pull request #51409 from FengyunPan/implement-InstanceExistsByProviderID

Automatic merge from submit-queue (batch tested with PRs 51409, 54616). 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>.

Implement InstanceExistsByProviderID() for cloud providers

Fix #51406
If cloud providers(like aws, gce etc...) implement ExternalID()
and support getting instance by ProviderID , they also implement
InstanceExistsByProviderID().

/assign wlan0
/assign @luxas

**Release note**:
```release-note
NONE
```

Author: Kubernetes Submit Queue

pkg/cloudprovider/providers/openstack/openstack_instances.go

@@ -116,7 +116,25 @@ func (i *Instances) ExternalID(name types.NodeName) (string, error) {
 // InstanceExistsByProviderID returns true if the instance with the given provider id still exists and is running.
 // If false is returned with no error, the instance will be immediately deleted by the cloud controller manager.
 func (i *Instances) InstanceExistsByProviderID(providerID string) (bool, error) {
-	return false, cloudprovider.NotImplemented
+	instanceID, err := instanceIDFromProviderID(providerID)
+	if err != nil {
+		return false, err
+	}
+
+	server, err := servers.Get(i.compute, instanceID).Extract()
+	if err != nil {
+		if isNotFound(err) {
+			return false, nil
+		}
+		return false, err
+	}
+
+	if server.Status != "ACTIVE" {
+		glog.Warningf("the instance %s is not active", instanceID)
+		return false, nil
+	}
+
+	return true, nil
 }
 
 // InstanceID returns the kubelet's cloud provider ID.