++ 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=931dc320-c20b-42e3-b1d3-f0aac315fc2b ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:9c:26:ba + echo 931dc320-c20b-42e3-b1d3-f0aac315fc2b + echo fa:16:3e:9c:26:ba