indigo-service runs only uwsgi on 8002 port
One needs to run nginx service and add uwsgi configuration
see instructions here
https://lifescience.opensource.epam.com/indigo/service/index.html
nginx should be run separately. The reason for the environment with separate web server is that ketcher static files and indigo-service should be hosted on the same server and port. Otherwise REST API will not work because of CORS
One can run nginx or any other http server which supports uwsgi (e.g. Tomcat)
Also please see #1 for some options to run nginx