Merge pull request #48612 from derekwaynecarr/aws-tags

Automatic merge from submit-queue

Warn if aws has no cluster id provided

**What this PR does / why we need it**:
we info log a message when no cluster id is provided that should be a warning given its impact.

fixes #49568

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

pkg/cloudprovider/providers/aws/tags.go

@@ -75,7 +75,7 @@ func (t *awsTagging) init(legacyClusterID string, clusterID string) error {
 	if clusterID != "" {
 		glog.Infof("AWS cloud filtering on ClusterID: %v", clusterID)
 	} else {
-		glog.Infof("AWS cloud - no clusterID filtering")
+		glog.Warning("AWS cloud - no clusterID filtering applied for shared resources; do not run multiple clusters in this AZ.")
 	}
 
 	return nil