++ hostname -s + HOSTNAME=instance + PORTNAME=octavia-health-manager-port-instance ++ openstack port show octavia-health-manager-port-instance -c id -f value + HM_PORT_ID=920781ff-ac71-4d08-a3b8-274dc8302828 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:28:39:03 + echo 920781ff-ac71-4d08-a3b8-274dc8302828 + echo fa:16:3e:28:39:03