e2e tests for validating Ambient deployment

This PR implements e2e tests for control plane and dataplane validation
of Ambient profile in the Sail Operator.

Related to: istio-ecosystem#500
Signed-off-by: Sridhar Gaddam <[email protected]>

tests/e2e/ambient/ambient_suite_test.go

@@ -0,0 +1,67 @@
+//go:build e2e
+
+// Copyright Istio Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ambient
+
+import (
+	"testing"
+
+	k8sclient "github.com/istio-ecosystem/sail-operator/tests/e2e/util/client"
+	"github.com/istio-ecosystem/sail-operator/tests/e2e/util/common"
+	"github.com/istio-ecosystem/sail-operator/tests/e2e/util/env"
+	"github.com/istio-ecosystem/sail-operator/tests/e2e/util/kubectl"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+)
+
+var (
+	cl                    client.Client
+	err                   error
+	ocp                   = env.GetBool("OCP", false)
+	operatorNamespace     = common.OperatorNamespace
+	deploymentName        = env.Get("DEPLOYMENT_NAME", "sail-operator")
+	controlPlaneNamespace = env.Get("CONTROL_PLANE_NS", "istio-system")
+	istioName             = env.Get("ISTIO_NAME", "default")
+	istioCniNamespace     = env.Get("ISTIOCNI_NAMESPACE", "istio-cni")
+	ztunnelNamespace      = env.Get("ZTUNNEL_NAMESPACE", "ztunnel")
+	istioCniName          = env.Get("ISTIOCNI_NAME", "default")
+	skipDeploy            = env.GetBool("SKIP_DEPLOY", false)
+	expectedRegistry      = env.Get("EXPECTED_REGISTRY", "^docker\\.io|^gcr\\.io")
+	multicluster          = env.GetBool("MULTICLUSTER", false)
+
+	k kubectl.Kubectl
+)
+
+func TestAmbient(t *testing.T) {
+	if multicluster {
+		t.Skip("Skipping the Ambient tests")
+	}
+
+	RegisterFailHandler(Fail)
+	setup()
+	RunSpecs(t, "Ambient Test Suite")
+}
+
+func setup() {
+	GinkgoWriter.Println("************ Running Setup ************")
+
+	GinkgoWriter.Println("Initializing k8s client")
+	cl, err = k8sclient.InitK8sClient("")
+	Expect(err).NotTo(HaveOccurred())
+
+	k = kubectl.New("clAmbient")
+}