++ 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=00420e52-253a-46ae-9b37-44806cbc0845 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:ad:2c:ac + echo 00420e52-253a-46ae-9b37-44806cbc0845 + echo fa:16:3e:ad:2c:ac