This is with the default 2 nodes, swarm-1 and swarm-2:
root@swarm-1:~# docker -H tcp://localhost:3000 info
Containers: 0
Images: 0
Role: primary
Strategy: spread
Filters: affinity, health, constraint, port, dependency
Nodes: 0
CPUs: 0
Total Memory: 0 B
Name: 812c9cb39e09