docker: no need to expose etcd anymore
docker: no need to expose etcd anymore

Agent don't need anymore to access to etcd

Change-Id: I5843c580df155783a33b7e7c39e2867a111469f1

safchain/skydive,lebauce/skydive,safchain/skydive,safchain/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,skydive-project/skydive,skydive-project/skydive,skydive-project/skydive,safchain/skydive,skydive-project/skydive,lebauce/skydive,skydive-project/skydive,lebauce/skydive,lebauce/skydive,lebauce/skydive,skydive-project/skydive,safchain/skydive,safchain/skydive,skydive-project/skydive,safchain/skydive,lebauce/skydive