evel isolation with/without primary identities</h3><p>Here is another example that demonstrates finer grained access control at service/method level. The first step
is to define a <code>book-reader</code> service role that allows READ access to <code>/books/*</code> resource in <code>bookstore</code> service.</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: &#34;rbac.istio.io/v1alpha1&#34;
kind: ServiceRole
metadata:
  name: book-reader
  namespace: default
spec:
  rules:
