Docker for build/deploy?

[FoxxMD]

First of all, amazing project! I'm happy to see someone tackling an issue most self-hosters never even consider.

After going through the guide it seems to me almost all steps, from init to deploy, could be performed in a Dockerfile. The final step of course being serving of the app from a web server in the container. The only blocker seems to be hereditas build which requires user input for the passphrase...

• Have you considered docker as a deployment/build solution?
• Could you add passphrase as an optional arg to hereditas build so that user input isn't required?