++ 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=0588b33c-6c46-4848-b446-bc624a8d4e18 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:bd:cf:fb + echo 0588b33c-6c46-4848-b446-bc624a8d4e18 + echo fa:16:3e:bd:cf:fb