I am launching elasticsearch via a dockerfile found here:

https://index.docker.io/u/ehazlett/elasticsearch/

It works great. I need to define my own hosts as my environment does not support multicast of any kind.

I understand that my options are:

1) supply hosts when elasticsearch is run as a command line parameter

2) modify my elasticsearch.yml file to set the hosts.

I know how to build the yml, what I need to know is how to launch elasticsearch via docker using my own yml instead of the one in the container. Is that possible?

Thanks.