Minor:      "19",
		GitVersion: "v1.19.5-rc.0",
	}
	version1_17GKE = &version.Info{
		Major:      "1",
		Minor:      "17+",
		GitVersion: "v1.17.7-gke.10",
	}
	version1_8GKE = &version.Info{
		Major:      "1",
		Minor:      "8",
		GitVersion: "v1.8.7-gke.8",
	}
	versionInvalid1 = &version.Info{
		Major:      "1",
		Minor:      "7",
		GitVersion: "v1.invalid.7",
	}
	versionInvalid2 = &version.Info{

      creationTimestamp: null
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
      - image: fake.docker.io/google-samples/hello-go-gke:1.0
        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}
      - image: docker.io/istio/proxy_debug:unittest
        name: istio-proxy
        resources: {}

      creationTimestamp: null
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
      - image: fake.docker.io/google-samples/hello-go-gke:1.0
        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}
      - image: docker.io/istio/proxy_debug:unittest
        name: istio-proxy
        resources: {}

  template:
    metadata:
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
        - name: hello
          image: "fake.docker.io/google-samples/hello-go-gke:1.0"
          ports:
            - name: http

      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
        - name: hello
          image: "fake.docker.io/google-samples/hello-go-gke:1.0"
          ports:
            - name: http

        track: stable
    spec:
      containers:
      - image: docker.io/istio/proxy_debug:unittest
        name: istio-proxy
        resources: {}
      - image: fake.docker.io/google-samples/hello-go-gke:1.0
        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}
      initContainers:
      - image: docker.io/istio/proxy_init:unittest-test
        name: istio-init

	WorkloadIdentityPool string
}

func getHubMembership(ctx context.Context, exClient kube.CLIClient) (*hubMembership, error) {
	client := exClient.Dynamic()
	gvr := schema.GroupVersionResource{
		Group:    "hub.gke.io",
		Version:  "v1",
		Resource: "memberships",
	}
	u, err := client.Resource(gvr).Get(ctx, "membership", metav1.GetOptions{})
	if err != nil {
		return nil, err
	}
	spec, ok := u.Object["spec"].(map[string]any)

**NOTE:** The environment variable `ISTIO_CLUSTER_ISGKE` is assumed to be set to `true` if the cluster
is a GKE cluster.

```bash
ISTIO_CNI_ARGS=
# TODO: What k8s data can we use for this check for whether GKE?
if [[ "${ISTIO_CLUSTER_ISGKE}" == "true" ]]; then
    ISTIO_CNI_ARGS="--set cni.cniBinDir=/home/kubernetes/bin"
fi