private void setExternalConnection(OpenstackRouter osRouter, String osSubNetId) {
if (!osRouter.gatewayExternalInfo().isEnablePnat()) {
log.debug("Source NAT is disabled");
return;
}
OpenstackSubnet osSubNet = openstackService.subnet(osSubNetId);
OpenstackNetwork osNet = openstackService.network(osSubNet.networkId());
populateExternalRules(osNet, osSubNet);
}
private void unsetRoutes(OpenstackRouter osRouter, OpenstackSubnet osSubNet) {
Set<OpenstackSubnet> routableSubNets = routableSubNets(osRouter.id());
Tools.stream(hostService.getHosts())
.filter(h -> Objects.equals(h.annotations().value(NETWORK_ID), osSubNet.id()))
.forEach(h -> removeRoutingRules(h, routableSubNets));
routableSubNets.forEach(
n -> {
Tools.stream(hostService.getHosts())
.filter(h -> Objects.equals(h.annotations().value(SUBNET_ID), n.id()))
.forEach(h -> removeRoutingRules(h, ImmutableSet.of(osSubNet)));
log.debug("Removed between {} to {}", n.name(), osSubNet.name());
});
}
@Override
public void removeRouterInterface(OpenstackRouterInterface routerIface) {
OpenstackRouter osRouter = openstackService.router(routerIface.id());
if (osRouter == null) {
log.warn("Failed to remove router interface {}", routerIface);
return;
}
OpenstackSubnet osSubnet = openstackService.subnet(routerIface.subnetId());
OpenstackNetwork osNet = openstackService.network(osSubnet.networkId());
unsetGatewayIcmp(
Ip4Address.valueOf(openstackService.subnet(routerIface.subnetId()).gatewayIp()));
unsetRoutes(osRouter, osSubnet);
if (osRouter.gatewayExternalInfo().externalFixedIps().size() > 0) {
unsetExternalConnection(osRouter, osNet.id(), osSubnet.cidr());
}
log.info("Disconnected {} from router {}", osSubnet.cidr(), osRouter.name());
}
@Override
public void updateRouter(OpenstackRouter osRouter) {
if (osRouter.gatewayExternalInfo().externalFixedIps().size() > 0) {
openstackService
.ports()
.stream()
.filter(
osPort ->
osPort.deviceOwner().equals(DEVICE_OWNER_ROUTER_INTERFACE)
&& osPort.deviceId().equals(osRouter.id()))
.forEach(
osPort -> {
String subnetId = osPort.fixedIps().keySet().stream().findFirst().get();
setExternalConnection(osRouter, subnetId);
});
log.info(
"Connected external gateway {} to router {}",
osRouter.gatewayExternalInfo().externalFixedIps(),
osRouter.name());
} else {
openstackService
.ports()
.stream()
.filter(
osPort ->
osPort.deviceOwner().equals(DEVICE_OWNER_ROUTER_INTERFACE)
&& osPort.deviceId().equals(osRouter.id()))
.forEach(
osPort -> {
String subnetId = osPort.fixedIps().keySet().stream().findFirst().get();
OpenstackSubnet osSubNet = openstackService.subnet(subnetId);
unsetExternalConnection(osRouter, osPort.networkId(), osSubNet.cidr());
});
log.info("Disconnected external gateway from router {}", osRouter.name());
}
}
private void populateExternalRules(OpenstackNetwork osNet, OpenstackSubnet osSubNet) {
populateCnodeToGateway(Long.valueOf(osNet.segmentId()), osSubNet.cidr());
populateGatewayToController(Long.valueOf(osNet.segmentId()), osSubNet.cidr());
}