++ 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=235bc191-05c3-4622-adac-80864f4b1249 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:d1:da:db + echo 235bc191-05c3-4622-adac-80864f4b1249 + echo fa:16:3e:d1:da:db