++ 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=c42fdfef-948c-4d50-ab46-c8d53b259154 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:c5:02:1b + echo c42fdfef-948c-4d50-ab46-c8d53b259154 + echo fa:16:3e:c5:02:1b