Does the docker method allow one to use all the same
environment variables that one might enable in electumx.conf?
Was there such configuration file for electrumx? In the docs you linked it says that there should be different files for each environment variable. For example, it says that you'll have to create the
COIN,
DB_DIRECTORY and
DAEMON_URL necessarily and some others optionally.
Anyway, yes, if I understood your question correctly, docker does allow you to do that. You just need to add parameters
on your script. Three posts above, @ETFbitcoin included the
DONATION_ADDRESS param. You can do the same for the banner:
-e BANNER_FILE=LOCATION_OF_YOUR_BANNER_FILE
Note that the location starts from the
electrumx data directory which means that if you enter BANNER_FILE=banner.txt, it'll search for
/home/user/electrumx:/data/banner.txt