++ 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=728bc518-688e-4083-94d0-feb2f8471130 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:5a:43:ac + echo 728bc518-688e-4083-94d0-feb2f8471130 + echo fa:16:3e:5a:43:ac