ple clusters to a service. It also provides automatic provisioning and syncing of Istio configuration across clusters. This removes the burden on developers and mesh operators, which helps scale beyond a few clusters.</p><h2 id=admiral-crds>Admiral CRDs</h2><h3 id=global-traffic-routing>Global Traffic Routing</h3><p>With Admiral’s global traffic policy CRD, the payments service can update regional traffic weights and Admiral updates the Istio configuration in all clusters that consume the payments service