Set name for swarm service.

app/swarm.py

@@ -52,7 +52,7 @@ class Swarm:
                                 'jobs',
                                 str(job.id))
                    + ':/files:rw']
-        _name = job.id
+        _name = str(job.user_id) + '_' + str(job.id)
         '''
         ' The Docker SDK for Python expects the cpu_reservation value to be
         ' scaled to nanos (10^9). Because the job object contains unscaled
@@ -86,6 +86,7 @@ class Swarm:
             constraints=_constraints,
             labels=_labels,
             mounts=_mounts,
+            name=_name,
             resources=_resources,
             restart_policy=_restart_policy
         )