Ingress load balancer is achieved via a service sandbox which acts as
the proxy to translate incoming node port requests and mapping that to a
service entry. Once the right service is identified, the same internal
loadbalancer implementation is used to load balance to the right backend
instance.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
This PR adds support for loadbalancing across a group of endpoints that
share the same service configuration as passed in by
`OptionService`. The loadbalancer is implemented using ipvs with just
round robin scheduling supported for now.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>