A minimal Mailpile Docker image based on Alpine Linux.
docker run -d --name mailpile -p 33411:33411 rroemhild/mailpile
Bind volume /root/.local/share/Mailpile and /root/.gnupg for persistent storage:
docker run -d --name mailpile -p 33411:33411 -v /some/local/path:/root/.local/share/Mailpile -v /another/local/path:/root/.gnupg rroemhild/mailpile