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controls the visibility of configuration resources, will effectively be
ignored as resources within the same namespace as the source service are
always visible.</li><li>A destination rule in namespace <code>my-namespace</code> that specifies a host that
matches <code>my-service.my-namespace.svc.cluster.local</code>. This may be an exact
match or a wildcard match. Note that the <code>exportTo</code> field must specify that
this resource is public (e.g. it has the value <code>"*"</code> or is not specified)