++ 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=8c0db591-9b3a-4110-bfad-81889c5739bb ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:da:7c:ed + echo 8c0db591-9b3a-4110-bfad-81889c5739bb + echo fa:16:3e:da:7c:ed