++ 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=6aec2da7-892d-4d8c-b389-93c4c803fb78 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:2b:42:fd + echo 6aec2da7-892d-4d8c-b389-93c4c803fb78 + echo fa:16:3e:2b:42:fd