Homer is a standard XDMS used to store MMTEL service settings documents for each user of the system. Documents are be created, read, updated and deleted using a standard XCAP interface. As with Homestead, the Homer nodes runs as a cluster using Cassandra as the data store.
Note: This is my attempt to build the container - but I recommend using docker-compose to orchestrate and put everything together. Check out - https://github.com/Metaswitch/clearwater-docker
Thanks Project Clearwater team.