++ 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=9308877a-ec33-4c7b-a361-dc2f90d55194 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:84:d0:12 + echo 9308877a-ec33-4c7b-a361-dc2f90d55194 + echo fa:16:3e:84:d0:12