Hi Community,

We have added the Logs for reference. 

(venv) xxx@openstack-aio-01:~$ docker exec -it horizon curl http://cloudkitty:8889/v1/rating/modules curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl (http://cloudkitty:8889/v1/rating/modules): response: 000, time: 2.699146, size: 0

(venv) xxx@openstack-aio-01:~$ docker exec -it horizon curl http://cloudkitty:8889/v1/rating/modules curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl: (6) Could not resolve host: cloudkitty curl (http://cloudkitty:8889/v1/rating/modules): response: 000, time: 2.430907, size: 0

Thanks, 

TRB.