++ 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=04d80141-b54f-416b-904c-cbafa27f2e5d ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:05:80:ac + echo 04d80141-b54f-416b-904c-cbafa27f2e5d + echo fa:16:3e:05:80:ac