The software described in this documentation is either no longer supported or is in extended support.
Oracle recommends that you upgrade to a current supported release.

6.2 Service Management

Containers are deployed as a service that is created within the swarm. The services running on the swarm are accessible via any of nodes that are running at least one container for the service in the swarm. If multiple replica containers for the same service are started on the swarm, requests for the service are automatically load-balanced among container instances running on the same node. If a node running a service becomes unavailable, the manager node starts an equal number of container instances of the service on the remaining nodes within the swarm.