Dear All, I am getting following error while trying to start the ubuntu container Command: openstack appcontainer run --name containerA --net network=5guknet ubuntu ping 8.8.8.8 Error: status_reason | Docker internal error: 500 Server Error: Internal Server Error ("legacy plugin: Post http://127.0.0.1:23750/Plugin.Activate: dial tcp 127.0.0.1:23750: connect: connection refused"). Secondly, with Heat Template: heat_template_version: 2015-04-30 resources: the_resource: type: OS::Zun::Container properties: cpu: 4 image: ubuntu image_pull_policy: "ifnotpresent" interactive: true memory: 2048 name: "ubuntu16" command: "ping 8.8.8.8" networks: [{"network": 5guknet}] restart_policy: "no" The command I can see on the appcontainer show is : command | [u'p', u'i', u'n', u'g', u' ', u'8', u'.', u'8', u'.', u'8', u'.', u'8'] Please advise how to resolve the two issues. Kind Regards, Navdeep