func resolveVirtualServiceShortnames()

in pilot/pkg/model/virtualservice.go [94:153]
55 lines of code
23 McCabe index (conditional complexity)

func resolveVirtualServiceShortnames(rule *networking.VirtualService, meta config.Meta) {
	// resolve top level hosts
	for i, h := range rule.Hosts {
		rule.Hosts[i] = string(ResolveShortnameToFQDN(h, meta))
	}
	// resolve gateways to bind to
	for i, g := range rule.Gateways {
		if g != constants.IstioMeshGateway {
			rule.Gateways[i] = resolveGatewayName(g, meta)
		}
	}
	// resolve host in http route.destination, route.mirror
	for _, d := range rule.Http {
		for _, m := range d.Match {
			for i, g := range m.Gateways {
				if g != constants.IstioMeshGateway {
					m.Gateways[i] = resolveGatewayName(g, meta)
				}
			}
		}
		for _, w := range d.Route {
			if w.Destination != nil {
				w.Destination.Host = string(ResolveShortnameToFQDN(w.Destination.Host, meta))
			}
		}
		if d.Mirror != nil {
			d.Mirror.Host = string(ResolveShortnameToFQDN(d.Mirror.Host, meta))
		}
	}
	// resolve host in tcp route.destination
	for _, d := range rule.Tcp {
		for _, m := range d.Match {
			for i, g := range m.Gateways {
				if g != constants.IstioMeshGateway {
					m.Gateways[i] = resolveGatewayName(g, meta)
				}
			}
		}
		for _, w := range d.Route {
			if w.Destination != nil {
				w.Destination.Host = string(ResolveShortnameToFQDN(w.Destination.Host, meta))
			}
		}
	}
	// resolve host in tls route.destination
	for _, tls := range rule.Tls {
		for _, m := range tls.Match {
			for i, g := range m.Gateways {
				if g != constants.IstioMeshGateway {
					m.Gateways[i] = resolveGatewayName(g, meta)
				}
			}
		}
		for _, w := range tls.Route {
			if w.Destination != nil {
				w.Destination.Host = string(ResolveShortnameToFQDN(w.Destination.Host, meta))
			}
		}
	}
}