for
Kubernetes workloads to bootstrap Istio proxies.</p><p>The following example declares a workload group representing a collection
of workloads that will be registered under <code>reviews</code> in namespace
<code>bookinfo</code>. The set of labels will be associated with each workload
instance during the bootstrap process, and the ports 3550 and 8080
will be associated with the workload group and use service account <code>default</code>.
<code>app.kubernetes.io/version</code> is just an arbitrary example