renames CommmonImageWhiteList to PrePulledImages in e2e/common/util

  Part of work to remove racist language, this name change also improves on the
  semantics of this variable name as it was not actually a list of permissible
  images but rather a list of images that are required for e2e_node tests that
  are to be pre-pulled so that they are available prior to running e2e tests.

  Worth noting that this list of images is "union merged" with another list when
  setting up e2e_node tests and as such there is the possibilty for overlap.

 # Please enter the commit message for your changes. Lines starting

Author: RobertKielty

test/e2e/common/util.go

@@ -57,11 +57,12 @@ var (
 // CurrentSuite represents current test suite.
 var CurrentSuite Suite
 
-// CommonImageWhiteList is the list of images used in common test. These images should be prepulled
-// before a tests starts, so that the tests won't fail due image pulling flakes. Currently, this is
-// only used by node e2e test.
+// PrePulledImages are a list of images used in e2e/common tests. These images should be prepulled
+// before tests starts, so that the tests won't fail due image pulling flakes.
+// Currently, this is only used by node e2e test.
+// See also updateImageWhiteList() in ../../e2e_node/image_list.go
 // TODO(random-liu): Change the image puller pod to use similar mechanism.
-var CommonImageWhiteList = sets.NewString(
+var PrePulledImages = sets.NewString(
 	imageutils.GetE2EImage(imageutils.Agnhost),
 	imageutils.GetE2EImage(imageutils.BusyBox),
 	imageutils.GetE2EImage(imageutils.IpcUtils),

test/e2e_node/image_list.go

@@ -67,7 +67,7 @@ var NodePrePullImageList = sets.NewString(
 // So this function needs to be called after the extra envs are applied.
 func updateImageWhiteList() {
 	// Union NodePrePullImageList and CommonImageWhiteList into the framework image pre-pull list.
-	framework.ImageWhiteList = NodePrePullImageList.Union(commontest.CommonImageWhiteList)
+	framework.ImageWhiteList = NodePrePullImageList.Union(commontest.PrePulledImages)
 	// Images from extra envs
 	framework.ImageWhiteList.Insert(getNodeProblemDetectorImage())
 	framework.ImageWhiteList.Insert(getSRIOVDevicePluginImage())