Generalize default webhook message (#50696)

* Use different webhook msg for ambient mode

* update msg

* add comment

operator/cmd/mesh/install.go

@@ -210,7 +210,7 @@ func Install(kubeClient kube.CLIClient, rootArgs *RootArgs, iArgs *InstallArgs,
 	if processed, err := helmreconciler.ProcessDefaultWebhook(kubeClient, iop, exists, opts); err != nil {
 		return fmt.Errorf("failed to process default webhook: %v", err)
 	} else if processed {
-		p.Println("Made this installation the default for injection and validation.")
+		p.Println("Made this installation the default for cluster-wide operations.")
 	}
 
 	if iArgs.Verify {
@@ -232,6 +232,10 @@ func Install(kubeClient kube.CLIClient, rootArgs *RootArgs, iArgs *InstallArgs,
 		}
 	}
 
+	// Post-install message
+	if profile == "ambient" {
+		p.Println("The ambient profile has been installed successfully, enjoy Istio without sidecars!")
+	}
 	return nil
 }
 

tests/integration/operator/install_test.go

@@ -82,7 +82,7 @@ func TestReInstallAfterFailure(t *testing.T) {
 			// Here we should have two activated webhooks, but dry-run should not report any error, which
 			// means the re-installation can be done successfully.
 			output, outErr := istioCtl.InvokeOrFail(t, []string{"install", "--dry-run"})
-			if !strings.Contains(output, "Made this installation the default for injection and validation.") {
+			if !strings.Contains(output, "Made this installation the default for cluster-wide operations.") {
 				t.Errorf("install expects to succeed but didn't")
 			}
 			assert.Equal(t, "", outErr)