++ 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=93d5a251-f0ca-4fd4-8882-137188716095 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:27:53:ee + echo 93d5a251-f0ca-4fd4-8882-137188716095 + echo fa:16:3e:27:53:ee