++ 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=f4764391-a8bf-4459-9579-372d8cb696d6
++ openstack port show octavia-health-manager-port-instance -c mac_address -f value
+ HM_PORT_MAC=fa:16:3e:d2:44:51
+ echo f4764391-a8bf-4459-9579-372d8cb696d6
+ echo fa:16:3e:d2:44:51