++ 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=40db3011-76dd-4ef9-9fb3-086142290241 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:3b:97:04 + echo 40db3011-76dd-4ef9-9fb3-086142290241 + echo fa:16:3e:3b:97:04