type Cert struct {
	ClientCert, Key, RootCert []byte
}

func CreateCertificate(t framework.TestContext, i Instance, serviceAccount, namespace string) (Cert, error) {
	c := t.Clusters().Default()
	rootCert, err := FetchRootCert(c.Kube())
	if err != nil {
		return Cert{}, fmt.Errorf("failed to fetch root cert: %v", err)
	}

	token, err := GetServiceAccountToken(c.Kube(), "istio-ca", namespace, serviceAccount)
	if err != nil {