s&rsquo; clusters. This would be nearly impossible to do without automation.</p><h2 id=admiral-to-the-rescue-admiral-is-that-automation>Admiral to the Rescue: Admiral is that Automation</h2><p><em>Admiral is a controller of Istio control planes.</em></p><figure style=width:75%><div class=wrapper-with-intrinsic-ratio style=padding-bottom:69.43866943866944%><a data-skipendnotes=true href=/v1.22/blog/2020/multi-cluster-mesh-automation/Istio_mesh_example_with_admiral.svg title="Cross cluster workload communicat