++ 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=f518c833-d5b4-4a07-8094-6772d6e3c70e ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:91:a5:8e + echo f518c833-d5b4-4a07-8094-6772d6e3c70e + echo fa:16:3e:91:a5:8e