++ 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=ed3ecb9c-fc11-4807-aa2f-b8f0c5773603 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:a6:23:3d + echo ed3ecb9c-fc11-4807-aa2f-b8f0c5773603 + echo fa:16:3e:a6:23:3d