sets</code> (i.e., named versions) of the corresponding destination host. These
subsets are used in <code>VirtualService</code> route specifications when sending traffic to specific versions of the service.
Naming versions this way allows us to cleanly refer to them across different virtual services, simplify the stats that
Istio proxies emit, and to encode subsets in SNI headers.</li></ol><p>A <code>DestinationRule</code> that configures policies and subsets for the reviews service might look something lik