++ 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=31ee8dac-3414-4b79-89df-b2367fec9536 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:a8:5a:db + echo 31ee8dac-3414-4b79-89df-b2367fec9536 + echo fa:16:3e:a8:5a:db