++ 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=4a0c0dd0-6183-47a7-a466-828f1db4e542 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:09:64:ec + echo 4a0c0dd0-6183-47a7-a466-828f1db4e542 + echo fa:16:3e:09:64:ec