make sync_vcpetenant use new mechanism when appropriate
diff --git a/xos/observers/base/SyncInstanceUsingAnsible.py b/xos/observers/base/SyncInstanceUsingAnsible.py
index 77879d2..5bb8250 100644
--- a/xos/observers/base/SyncInstanceUsingAnsible.py
+++ b/xos/observers/base/SyncInstanceUsingAnsible.py
@@ -90,6 +90,7 @@
                        "baremetal_ssh": True,
                        "instance_name": "rootcontext",
                        "username": "root",
+                       "container_name": "%s-%s" % (instance.slice.name, str(instance.id))
                      }
             key_name = self.get_node_key(node)
         else:
@@ -107,6 +108,7 @@
                        "instance_id": instance.parent.instance_id,
                        "username": "ubuntu",
                        "nat_ip": instance.parent.get_ssh_ip(),
+                       "container_name": "%s-%s" % (instance.slice.name, str(instance.id))
                          }
             key_name = instance.parent.slice.service.private_key_fn
 
diff --git a/xos/observers/vcpe/steps/sync_vcpetenant.py b/xos/observers/vcpe/steps/sync_vcpetenant.py
index 120954b..4f3886e 100644
--- a/xos/observers/vcpe/steps/sync_vcpetenant.py
+++ b/xos/observers/vcpe/steps/sync_vcpetenant.py
@@ -131,7 +131,8 @@
                 "dnsdemux_ip": dnsdemux_ip,
                 "cdn_prefixes": cdn_prefixes,
                 "bbs_addrs": bbs_addrs,
-                "full_setup": full_setup}
+                "full_setup": full_setup,
+                "isolation": o.instance.isolation}
 
         # add in the sync_attributes that come from the SubscriberRoot object
 
@@ -209,7 +210,10 @@
         if quick_update:
             logger.info("quick_update triggered; skipping ansible recipe")
         else:
-            super(SyncVCPETenant, self).run_playbook(o, fields)
+            if o.instance.isolation in ["container", "container_vm"]:
+                super(SyncVCPETenant, self).run_playbook(o, fields, "sync_vcpetenant_new.yaml")
+            else:
+                super(SyncVCPETenant, self).run_playbook(o, fields)
 
         o.last_ansible_hash = ansible_hash