++ 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=c263a666-c20d-40be-9fad-05b5d6174127 ++ openstack port show octavia-health-manager-port-instance -c mac_address -f value + HM_PORT_MAC=fa:16:3e:8b:08:eb + echo c263a666-c20d-40be-9fad-05b5d6174127 + echo fa:16:3e:8b:08:eb