disable cpu_shares in the sandbox

controller/controller.py

@@ -1107,14 +1107,22 @@ class JobManager(Manager):
                         cap_add = ["dac_override"],
                         cpu_period = ctrl.cpu_period,
                         cpu_quota  = ctrl.cpu_quota,
-#                        cpu_shares = ctrl.cpu_shares,
+                        # NOTE: cpu_shares has a different meaining in docker swarm and docker engine
+                        #  - swarm:  nb of cpus
+                        #  - engine: 1/1024 share of the total cpu resouces of the machine
+                        # engine requires  cpu_share>1
+#                        cpu_shares = None if info.ver_id is None else ctrl.cpu_shares,
 #                        mem_reservation = ctrl.mem_soft_limit,
                         mem_limit = ctrl.mem_hard_limit,
                     )
             if ctrl.mem_soft_limit:
                 # TODO: upgrade docker-py (and use create_host_config)
                 hc["MemoryReservation"] = ctrl.mem_soft_limit
-            if ctrl.cpu_shares:
+            # NOTE: cpu_shares has a different meaining in docker swarm and docker engine
+            #  - swarm:  nb of cpus
+            #  - engine: 1/1024 share of the total cpu resouces of the machine
+            # engine requires  cpu_share>1
+            if ctrl.cpu_shares and info.ver_id is not None:
                 # TODO: upgrade docker-py (and use create_host_config)
                 hc["CpuShares"] = ctrl.cpu_shares
             log.debug("host_config %r", hc)