may help you . Yes the httpEndpoint entry defines the http and https port and the WL applications have their context root on these ports. If you have different Liberty Servers with the same WL runtime, be sure that the you share the same database and same schema. After that you can use a Web Proxy to load balance the requests between the different Liberty servers.
IBM Worklight 6.0 - Worklight Console does not show up after installing WL 6.0 server on Liberty profile - Error 500