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Instead, an Istio specific field like `ExpectedTLSIdentity: spiffe://foo.bar` can encode the same information, at a fraction of the cost.

In our testing, even the most generous representations give custom types a 10x edge (in size, allocations, and CPU time) over Envoy types.
In addition, they are more clear and strictly typed; using Envoy types would require us to put a lot of information in untyped `metadata` maps.

  repeated HTTPIngressPath paths = 1;
}

// Ingress is a collection of rules that allow inbound connections to reach the
// endpoints defined by a backend. An Ingress can be configured to give services
// externally-reachable urls, load balance traffic, terminate SSL, offer name
// based virtual hosting etc.
message Ingress {
  // Standard object's metadata.

	switch v := match.GetOnNoMatch().GetOnMatch().(type) {
	case *matcher.Matcher_OnMatch_Action:
		if v.Action.GetName() == name {
			// TODO this only makes sense in context of a chain... do we need a way to give it context
			return []string{"ANY"}, true
		}
	case *matcher.Matcher_OnMatch_Matcher:
		ms, f := recurse(name, v.Matcher)
		if !f {
			return []string{"NONE"}, true
		}
		return ms, true
	}