etcd doesn't run on the subnode by default, it is enabled by kuryr-libnetwork here:
http://logs.openstack.org/88/508088/3/check/gate-tempest-dsvm-zun-multinode-docker-sql-ubuntu-xenial-nv/bbd40be/logs/subnode-2/devstacklog.txt.gz#_2017-09-28_09_25_20_888
++ /opt/stack/new/kuryr-libnetwork/devstack/settings:source:29 : enable_service kuryr-libnetwork etcd3 docker-engine
So IMO you should fix kuryr-libnetwork to be multinode compatible and things will be fine.
etcd doesn't run on the subnode by default, it is enabled by kuryr-libnetwork here:
http:// logs.openstack. org/88/ 508088/ 3/check/ gate-tempest- dsvm-zun- multinode- docker- sql-ubuntu- xenial- nv/bbd40be/ logs/subnode- 2/devstacklog. txt.gz# _2017-09- 28_09_25_ 20_888
++ /opt/stack/ new/kuryr- libnetwork/ devstack/ settings: source: 29 : enable_service kuryr-libnetwork etcd3 docker-engine
So IMO you should fix kuryr-libnetwork to be multinode compatible and things will be fine.