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

Backup your databases

docker exec -t your-db-container pg_dumpall -c -U postgres > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql

Restore your databases

cat your_dump.sql | docker exec -i your-db-container psql -U postgres