update makefile and readme

Makefile

@@ -365,6 +365,10 @@ test: $(ENVTEST) # Run unit tests.
 	go build -o test-summary ./test/utsummary/main.go
 	CGO_ENABLED=0 KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use -p path)" go test -tags=unit,dashboard -skip=TestE2E* -coverprofile=coverage.out -v -json ./... | ./test-summary --progress --verbose
 
+E2E_TEST_PATH ?= ./test/e2e/*.go
+test-e2e: $(ENVTEST) # Run e2e tests.
+	CGO_ENABLED=0 go test -v $(E2E_TEST_PATH) -timeout 30m -tags=e2e -count=1 -args -image-tag=$(IMAGE_TAG) -image-registry=acnpublic.azurecr.io -image-namespace=microsoft/retina
+
 coverage: # Code coverage.
 #	go generate ./... && go test -tags=unit -coverprofile=coverage.out.tmp ./...
 	cat coverage.out | grep -v "_bpf.go\|_bpfel_x86.go\|_bpfel_arm64.go|_generated.go|mock_" | grep -v mock > coveragenew.out

test/e2e/README.md

@@ -13,7 +13,19 @@
 ## Starter Example
 
 When authoring tests, make sure to prefix the test name with `TestE2E` so that it is skipped by existing pipeline unit test framework.
-For reference, see the `test-all` recipe in the root [Makefile](../../Makefile).
+For reference, see the `test-e2e` recipe in the root [Makefile](../../Makefile).
+
+## Running E2E Test
+
+You can execute all e2e tests in an AKS cluster. The image tag should be the image tag from the *Build Agent Images* pipeline on your PR.
+You can also execute specific e2e tests (non-cilium and cilium) by setting `E2E_TEST_PATH`. If left empty, it will run all tests.
+Example command:
+
+```bash
+export AZURE_SUBSCRIPTION_ID=<YOUR-SUBSCRIPTION> && \
+export AZURE_LOCATION=<location> && \
+IMAGE_TAG=<YOUR-IMAGE-TAG> make test-e2e
+```
 
 For sample test, please check out:
 [the Retina E2E.](./scenarios/retina/drop/scenario.go)

test/e2e/jobs/jobs.go

@@ -227,12 +227,7 @@ func InstallAndTestRetinaCiliumMetrics(kubeConfigFilePath, chartPath, valuesFile
 
 	// Upgade to ciliumeventobserver plugin
 	job.AddStep(&kubernetes.UpgradeRetinaHelmChart{
-		Namespace:          "kube-system",
-		ReleaseName:        "retina",
-		KubeConfigFilePath: kubeConfigFilePath,
-		ChartPath:          chartPath,
-		TagEnv:             generic.DefaultTagEnv,
-		ValuesFile:         valuesFilePath,
+		ValuesFile: valuesFilePath,
 	}, nil)
 
 	job.AddScenario(ciliumeventobserver.ValidateCiliumEventObserverDropMetric())

test/e2e/retina_cilium_e2e_test.go

@@ -16,24 +16,25 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+var retinaCiliumLocations = []string{"eastus2", "centralus", "southcentralus", "uksouth", "centralindia", "westus2"}
+
 // TestE2ERetinaCilium tests all e2e scenarios for retina on cilium clusters
 func TestE2ERetinaCilium(t *testing.T) {
 	curuser, err := user.Current()
 	require.NoError(t, err)
-
-	clusterName := curuser.Username + common.NetObsRGtag + "cilium-" + strconv.FormatInt(time.Now().Unix(), 10)
+	clusterName := curuser.Username + common.NetObsRGtag + "cil-" + strconv.FormatInt(time.Now().Unix(), 10)
 
 	subID := os.Getenv("AZURE_SUBSCRIPTION_ID")
 	require.NotEmpty(t, subID)
 
 	location := os.Getenv("AZURE_LOCATION")
 	if location == "" {
 		var nBig *big.Int
-		nBig, err = rand.Int(rand.Reader, big.NewInt(int64(len(locations))))
+		nBig, err = rand.Int(rand.Reader, big.NewInt(int64(len(retinaCiliumLocations))))
 		if err != nil {
 			t.Fatalf("Failed to generate a secure random index: %v", err)
 		}
-		location = locations[nBig.Int64()]
+		location = retinaCiliumLocations[nBig.Int64()]
 	}
 
 	cwd, err := os.Getwd()