++ 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=a0ab5fa2-a40f-4805-bfc6-0afe424ac3ae ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:79:3f:db + echo a0ab5fa2-a40f-4805-bfc6-0afe424ac3ae + echo fa:16:3e:79:3f:db