diff -Naur vim-emu.orig/src/emuvim/api/openstack/openstack_dummies/nova_dummy_api.py vim-emu/src/emuvim/api/openstack/openstack_dummies/nova_dummy_api.py
--- vim-emu.orig/src/emuvim/api/openstack/openstack_dummies/nova_dummy_api.py   2020-09-25 17:34:52.038757471 +0000
+++ vim-emu/src/emuvim/api/openstack/openstack_dummies/nova_dummy_api.py        2020-09-25 17:35:09.306757471 +0000
@@ -254,6 +254,9 @@
                         return Response(
                             "Currently only networking by port is supported.", status=400)

+            if 'vyos' in server.image:
+                server.command='/sbin/init'
+
             self.api.compute._start_compute(server)

             response = NovaShowServerDetails(self.api).get(id, server.id)
diff -Naur containernet.orig/mininet/node.py containernet/mininet/node.py
--- containernet.orig/mininet/node.py	2020-07-07 14:09:44.000000000 +0000
+++ containernet/mininet/node.py	2020-09-25 17:22:53.157888471 +0000
@@ -1143,7 +1143,10 @@
         # filter out None values to avoid errors
         resources_filtered = {res:self.resources[res] for res in self.resources if self.resources[res] is not None}
         info("{1}: update resources {0}\n".format(resources_filtered, self.name))
-        self.dcli.update_container(self.dc, **resources_filtered)
+        try:
+            self.dcli.update_container(self.dc, **resources_filtered)
+        except Exception as ex:
+            error("Problem calling update_container: %s\n" % ex)
 
 
     def updateCpuLimit(self, cpu_quota=-1, cpu_period=-1, cpu_shares=-1, cores=None):