return fmt.Errorf("interceptionMode invalid: %v", mode)
	}
	return nil
}

func validateCIDRList(cidrs string) error {
	if len(cidrs) > 0 {
		for _, cidr := range strings.Split(cidrs, ",") {
			if _, err := netip.ParsePrefix(cidr); err != nil {
				return fmt.Errorf("failed parsing cidr '%s': %v", cidr, err)
			}
		}
	}
	return nil
}

func splitPorts(portsString string) []string {

}

// IPBlock describes a particular CIDR (Ex. "192.168.1.0/24","2001:db8::/64") that is allowed
// to the pods matched by a NetworkPolicySpec's podSelector. The except entry describes CIDRs
// that should not be included within this rule.
message IPBlock {
  // cidr is a string representing the IPBlock
  // Valid examples are "192.168.1.0/24" or "2001:db8::/64"
  optional string cidr = 1;

// IPBlock describes a particular CIDR (Ex. "192.168.1.0/24","2001:db8::/64") that is allowed
// to the pods matched by a NetworkPolicySpec's podSelector. The except entry describes CIDRs
// that should not be included within this rule.
message IPBlock {
  // CIDR is a string representing the IP Block
  // Valid examples are "192.168.1.0/24" or "2001:db8::/64"
  optional string cidr = 1;

			m = map[string]*matcher.Matcher_OnMatch{}
			for _, rm := range ip.GetRangeMatchers() {
				for _, r := range rm.Ranges {
					cidr := r.AddressPrefix
					pl := r.PrefixLen.GetValue()
					if pl != 32 && pl != 128 {
						cidr += fmt.Sprintf("/%d", pl)
					}
					m[cidr] = rm.OnMatch
				}
			}
		default:
			panic("unhandled")
		}
	}
	outputs := []string{}
	for k, v := range m {

}

function cidr_to_ips() {
    CIDR="$1"
    # cidr_to_ips returns a list of single IPs from a CIDR. We skip 1000 (since they are likely to be allocated
    # already to other services), then pick the next 100.
    python3 - <<EOF
from ipaddress import ip_network, IPv6Network;
from itertools import islice;

net = ip_network('$CIDR')
net_bits = 128 if type(net) == IPv6Network else 32;

			excludePorts += fmt.Sprintf(",%d", config.StatusPort)
		} else {
			// use default status port
			excludePorts += ",15020"
		}
	}
	// default attributes and service name, namespace, ports, service account, service CIDR
	overrides := map[string]string{
		"ISTIO_INBOUND_PORTS":       portBehavior,
		"ISTIO_NAMESPACE":           wg.Namespace,
		"ISTIO_SERVICE":             fmt.Sprintf("%s.%s", wg.Name, wg.Namespace),