Hi,
You can find the Docker install instructions in Opal’s documentation: http://opaldoc.obiba.org/en/latest/admin/installation.html#docker-image-installation
My concern is more about how large the data are, like millions of rows and/or columns? Next version of Opal will be able to handle large data sources, but it is not ready yet (see this post).
Cheers, Yannick