Do not add names to ingress network
Do not add names to ingress network

Do not add service discovery names to ingress network as this is a
routing only network and no intra-cluster discovery should happen in
that network. This fixes the ambiguity and resolving names between
services which are both publishing ports and also attached to same
another network.

Signed-off-by: Jana Radhakrishnan <045898bda7d4800fe4909a9831e702ab79e266be@docker.com>

tmakita/libnetwork,ityangchen/libnetwork,medallia/libnetwork,mahak/libnetwork,allencloud/libnetwork,kolyshkin/libnetwork,abhi/libnetwork,kolyshkin/libnetwork,sainath14/libnetwork,fcrisciani/libnetwork,medallia/libnetwork,WeiZhang555/libnetwork,kolyshkin/libnetwork,allencloud/libnetwork,vdemeester/libnetwork,ityangchen/libnetwork,curtiszimmerman/libnetwork,msabansal/libnetwork,docker/libnetwork,tmakita/libnetwork,docker/libnetwork,mbanikazemi/libnetwork,curtiszimmerman/libnetwork,mahak/libnetwork,abhi/libnetwork,sainath14/libnetwork,fcrisciani/libnetwork,WeiZhang555/libnetwork,vdemeester/libnetwork,mbanikazemi/libnetwork,abhi/libnetwork,msabansal/libnetwork,docker/libnetwork,mYmNeo/libnetwork,mahak/libnetwork,vdemeester/libnetwork,mYmNeo/libnetwork,medallia/libnetwork