Backup/Restore a dockerized PostgreSQL database

Question

I\'m trying to backup/restore a PostgreSQL database as is explained on the Docker website, but the data is not restored.

The volumes used by the database image are:<

Answer 1

dksnap (https://github.com/kelda/dksnap) automates the process of running pg_dumpall and loading the dump via /docker-entrypoint-initdb.d.

It shows you a list of running containers, and you pick which one you want to backup. The resulting artifact is a regular Docker image, so you can then docker run it, or share it by pushing it to a Docker registry.

(disclaimer: I'm a maintainer on the project)