ldap auth issues

[adityavijjanT]

auth:
module: 'iris_api.ui.auth.ldap'
ldap_user_suffix: '@yourdomain.com'
ldap_url: 'ldaps://your-ldap-server.com'
ldap_cert_path: path/to/your/cert/pem

I have tried but got below error.

ImportError: No module named iris_api.ui.auth.ldap
[2019-01-10 10:00:38 +0000] [3071] [INFO] Worker exiting (pid: 3071)
[2019-01-10 10:00:38 +0000] [3067] [INFO] Shutting down: Master
[2019-01-10 10:00:38 +0000] [3067] [INFO] Reason: Worker failed to boot.
Makefile:4: recipe for target 'serve' failed
make: *** [serve] Error 3