++ 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=548dbba0-775f-4a41-890c-5ededd750426 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:30:54:32 + echo 548dbba0-775f-4a41-890c-5ededd750426 + echo fa:16:3e:30:54:32