docker-compose is pulling images on all nodes

[msachan]

docker-compose on swarm is pulling images on all nodes which seems wasteful download.

± |master ✗| → docker-compose --x-networking up -d
Creating network "wildflycouchbase" with driver "None"
Pulling mywildfly (arungupta/wildfly-admin:latest)...
swarm-master: Pulling arungupta/wildfly-admin:latest... : downloaded
swarm-node-01: Pulling arungupta/wildfly-admin:latest... : downloaded
swarm-node-02: Pulling arungupta/wildfly-admin:latest... : downloaded
Creating wildflycouchbase_mywildfly_1
Pulling mycouchbase (couchbase/server:latest)...
swarm-node-02: Pulling couchbase/server:latest... : downloaded
swarm-master: Pulling couchbase/server:latest... : downloaded
swarm-node-01: Pulling couchbase/server:latest... : downloaded
Creating db

± |master ✗| → eval $(docker-machine env swarm-node-01)
± |master ✗| → docker images
REPOSITORY                TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
couchbase/server          latest              af2b52712f30        2 days ago          374.9 MB
swarm                     latest              a9975e2cc0a3        3 days ago          17.15 MB
arungupta/wildfly-admin   latest              4cce2f92cd6e        11 months ago       951.3 MB

± |master ✗| → eval $(docker-machine env swarm-node-02)
± |master ✗| → docker images
REPOSITORY                TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
couchbase/server          latest              af2b52712f30        2 days ago          374.9 MB
swarm                     latest              a9975e2cc0a3        3 days ago          17.15 MB
arungupta/wildfly-admin   latest              4cce2f92cd6e        11 months ago       951.3 MB