++ 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=e459e427-c7bf-4c55-b8a7-869d5970f578 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:28:8d:c3 + echo e459e427-c7bf-4c55-b8a7-869d5970f578 + echo fa:16:3e:28:8d:c3