++ 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=fabcac11-c61c-498f-8874-2d787be704ec
++ openstack port show octavia-health-manager-port-instance -c mac_address -f value
+ HM_PORT_MAC=fa:16:3e:ad:a4:3b
+ echo fabcac11-c61c-498f-8874-2d787be704ec
+ echo fa:16:3e:ad:a4:3b