++ 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=87f0a4bd-4e84-4935-ab7d-542cc6bd5492 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:69:93:cf + echo 87f0a4bd-4e84-4935-ab7d-542cc6bd5492 + echo fa:16:3e:69:93:cf