tests: Replaces images used with agnhost (part 3)

Quite a few images are only used a few times in a few tests. Thus,
the images are being centralized into the agnhost image, reducing
the number of images that have to be pulled and used.

This PR replaces the usage of the following images with agnhost:

- audit-proxy
- crd-conversion-webhook
- entrypoint-tester
- inclusterclient
- iperf
- porter
- serve-hostname

test/e2e/apps/deployment.go

@@ -266,7 +266,7 @@ func testRollingUpdateDeployment(f *framework.Framework) {
 	rsRevision := "3546343826724305832"
 	annotations := make(map[string]string)
 	annotations[deploymentutil.RevisionAnnotation] = rsRevision
-	rs := newRS(rsName, replicas, rsPodLabels, WebserverImageName, WebserverImage)
+	rs := newRS(rsName, replicas, rsPodLabels, WebserverImageName, WebserverImage, nil)
 	rs.Annotations = annotations
 	e2elog.Logf("Creating replica set %q (going to be adopted)", rs.Name)
 	_, err := c.AppsV1().ReplicaSets(ns).Create(rs)
@@ -346,7 +346,7 @@ func testDeploymentCleanUpPolicy(f *framework.Framework) {
 	rsName := "test-cleanup-controller"
 	replicas := int32(1)
 	revisionHistoryLimit := utilpointer.Int32Ptr(0)
-	_, err := c.AppsV1().ReplicaSets(ns).Create(newRS(rsName, replicas, rsPodLabels, WebserverImageName, WebserverImage))
+	_, err := c.AppsV1().ReplicaSets(ns).Create(newRS(rsName, replicas, rsPodLabels, WebserverImageName, WebserverImage, nil))
 	framework.ExpectNoError(err)
 
 	// Verify that the required pods have come up.
@@ -417,7 +417,7 @@ func testRolloverDeployment(f *framework.Framework) {
 
 	rsName := "test-rollover-controller"
 	rsReplicas := int32(1)
-	_, err := c.AppsV1().ReplicaSets(ns).Create(newRS(rsName, rsReplicas, rsPodLabels, WebserverImageName, WebserverImage))
+	_, err := c.AppsV1().ReplicaSets(ns).Create(newRS(rsName, rsReplicas, rsPodLabels, WebserverImageName, WebserverImage, nil))
 	framework.ExpectNoError(err)
 	// Verify that the required pods have come up.
 	err = e2epod.VerifyPodsRunning(c, ns, podName, false, rsReplicas)