++ 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=756493bb-0e23-4a4f-adf7-9d25943d248c ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:5f:ed:0b + echo 756493bb-0e23-4a4f-adf7-9d25943d248c + echo fa:16:3e:5f:ed:0b