Merge pull request kubernetes#82274 from rajansandeep/addreadytotest

Add ready plugin to dns tests

Author: k8s-ci-robot

test/e2e/network/dns_configmap.go

@@ -68,6 +68,7 @@ func (t *dnsFederationsConfigMapTest) run() {
 		valid1 := map[string]string{
 			"Corefile": fmt.Sprintf(`.:53 {
         health
+        ready
         kubernetes %v in-addr.arpa ip6.arpa {
             pods insecure
             upstream
@@ -84,6 +85,7 @@ func (t *dnsFederationsConfigMapTest) run() {
 		valid2 := map[string]string{
 			"Corefile": fmt.Sprintf(`:53 {
         health
+        ready
         kubernetes %v in-addr.arpa ip6.arpa {
             pods insecure
             upstream
@@ -234,6 +236,7 @@ func (t *dnsNameserverTest) run(isIPv6 bool) {
 		t.setConfigMap(&v1.ConfigMap{Data: map[string]string{
 			"Corefile": fmt.Sprintf(`.:53 {
         health
+        ready
         kubernetes %v in-addr.arpa ip6.arpa {
            pods insecure
            upstream
@@ -333,6 +336,7 @@ func (t *dnsPtrFwdTest) run(isIPv6 bool) {
 		t.setConfigMap(&v1.ConfigMap{Data: map[string]string{
 			"Corefile": fmt.Sprintf(`.:53 {
         health
+        ready
         kubernetes %v in-addr.arpa ip6.arpa {
            pods insecure
            upstream
@@ -444,6 +448,7 @@ func (t *dnsExternalNameTest) run(isIPv6 bool) {
 		t.setConfigMap(&v1.ConfigMap{Data: map[string]string{
 			"Corefile": fmt.Sprintf(`.:53 {
         health
+        ready
         kubernetes %v in-addr.arpa ip6.arpa {
            pods insecure
            upstream