++ 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=36ac368d-e749-4dff-9af9-cbaf27976cb9 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:f5:7a:fd + echo 36ac368d-e749-4dff-9af9-cbaf27976cb9 + echo fa:16:3e:f5:7a:fd