docker-compose setup to run ZNC in a Docker container. Includes the znc-otr, znc-push and znc-playback modules.
To import your current configurations, add your current .znc folder as a subfolder of data and uncomment the ADD directive in data/Dockerfile. Switch the data container to build in docker-compose.yml, and run docker-compose build data to create your data container. Do this only once, and don't forget to go back to using image instead of build in docker-compose.yml.
If you prefer to use a host volume, comment the volumes_from section, uncomment the volumes one and adjust to your path locations if needed.
Simply run the usual docker-compose up